Spermatophytes are the seed-bearing plants. Spermatophytes are also known as phanerogams. The major stages or processes that make up the life cycle of spermatophytes are pollination, germination and fertilization. Thus, correct options are A, B and C.
What are Spermatophytes?Spermatophytes are the plants that form seeds. Spermatophyte is the largest vascular plant lineage. Spermatophyte is divided into two major classes- Gymnosperms and Angiosperms on the basis of structure of ovary.
Spermatophytes produce seeds by the fertilization of male and female gametes. These gametes come under close contact by pollination. Pollination is the process by which pollens (male gametes) are transferred to female gamete. After pollination, the gametes undergo fertilization to produce zygote which produce seeds. These seeds again undergo germination to produce the whole plant. Thus, A, B and C are the correct options.
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Your question is incomplete, probably the complete question/missing part is:
What processes make up the general life cycle of spermatophytes? (choose all that apply)
A. pollination
B. germination
C. fertilization
D. cell respiration
Select the correct answer. john stretched while his muscles were cold. which negative effect could occur? a. blood might not flow to his limbs. b. his strength could decrease quickly. c. he could injure or pull a muscle. d. oxygen might not reach his muscles.
The correct answer is [c] he could injure or pull a muscle.
When stretching, it's important to make sure your muscles are prepared because they are more pliable in the heat, making summer the best time to practice stretching. This is why we typically stop stretching during the winter in sports.
How do blood circulate?Large and muscular in nature, the heart constantly pumps the oxygen-rich blood to the brain and extremities while also pumping oxygen-poor blood from the brain and extremities to the lungs. Blood is pumped into the pulmonary arteries in the lungs from right ventricle after entering the right atrium from the body. After absorbing the oxygen, the blood returns to the heart through the pulmonary veins, passing through the left atrium, left ventricle, and aorta before leaving the body through the tissues.
In 14 steps, blood flows through the heart in the following order: 1) body –> 2) the inferior/superior vena cava –> 3) the right atrium –> 4) the tricuspid valve –> 5) the right ventricle –> 6) the pulmonary arteries –> 7) lungs –> 8) the pulmonary veins –> 9) the left atrium –> 10) the mitral or bicuspid valve –> 11) the left ventricle –> 12) the aortic valve –> 13) the aorta –> 14) body.
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A model organism is a species that researchers study to better understand certain biological processes. Mollusks and arthropods are commonly used as model organisms for studying mechanisms of learning and memory, while sponges and jellyfish are not. Why is this?
Mollusks and arthropods are commonly used as model organisms for studying mechanisms of learning and memory because they have sophisticated specialized nerve systems that allow them to rapidly respond to environmental stimuli, while sponges and jellyfish do not have these features.
What are model organisms?Model organisms are life forms whose features are advantageous to study a given cellular or biological process, for example, signaling pathways in animals closely related to the human species.
These advantageous features in animal models may include for example a rapid generation time for the development of many offspring in the same generation of individuals.
In conclusion, mollusks and arthropods are commonly used as model organisms for studying mechanisms of learning and memory because they have sophisticated specialized nerve systems that allow them to rapidly respond to environmental stimuli, while sponges and jellyfish do not have these features.
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the approach allows for the scientific study of the interrelationship between culture and what humans have inherited genetically.
Biocultural is the approach that allows for the scientific study of the interrelationship in between the culture and what the humans have inherited genetically
Biocultural is the approaches recognize the pervasiveness and the dynamism of the interactions between the biological and the cultural phenomena, and they was explicitly strive to the integrate the biological, sociocultural, the environmental, and other kinds of the data For example, the biocultural anthropologist might study that how the food we eat shapes to our societal and structure and that influences the politics and how they changes in the nutrition and the availability of food affect the health of the average persons life
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How well do adolescents handle adolescence according to more recent studies?
Answer:
adolescents cannot control adolescence according to more recent studies.
Explanation:
But they should be aware of it.
Any tissues that exist in layers and form linings or coverings fall into the category of.
Stratified epithelia are any tissues that appear in layers and establish linings as well as coverings.
The epithelium is a type of body tissue that surrounds all of the internal and external surfaces of your body, tracks body cavities and hollow body organs, and serves as the main tissue in glands. Epithelial tissue serves a variety of functions in your body, such as protection, secretion, and absorption.
Epithelial tissue is made up of stratified epithelial cells. Cells can be of different shape and structured in a single layer or multiple layers depending on their position in one's body or their functions.
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What molecule is the source of the protons that are used to establish the proton gradient?.
Answer:.
Explanation:
Answer:
Water.
Explanation:
Through photosystem II, energy that is derived from the absorption of protons splits water molecules into oxygen and protons. The reaction takes place in the thylakoid lumen, thus, the release of protons from water will establish a gradient across the membrane.
Hope this helps.
A farmer working on a piece of machinery gets his shirtsleeve caught in a moving piece of the equipment. His shirt is sliced, and a sharp
blade covered in mud slices through his upper arm. He attempts to control the bleeding and immediately seeks medical attention. After 3
days, he develops a fever and his arm becomes extremely swollen and painful. Pulling back the bandages, he finds that the wound has
become blackened and is leaking bloody fluid. Microscopic analysis of the fluid reveals the presence of gram-positive bacilli.
a. Discuss what condition the patient is suffering from and the likely causative agent of this infection.
b. Explain how the patient contracted this pathogenic microbe and what virulence factors contributed to the pathogenesis seen at
the wound site.
c. In addition to antibiotics, the physician prescribes hyperbaric therapy. Describe what this treatment involves and how it could be
therapeutic to this patient
Based on the bacterial characterisation, we can determine that this is a gram-positive bacterium, and based on the symptoms and biopsy, we can also conclude that it is most likely bacilli.
From the evidence obtained from bacterial characterization, it is possible to allude the symptoms to a gram-positive bacterium. It is also plausible to conclude that it is most likely bacilli based on the symptoms and biopsy. It is obvious he had a fever, a swollen arm, and black skin which furthers supports the bacterium assumption. The bacterium responsible was most likely from Clostridium perforation. The bandage kept on for some days allowed the bacterial growth resulting in gangrene. To be sure of these assumptions, more testing, however, are required to identify this bacterium as the source of the illness. Necrosis or necrosis of muscle tissue distinguishes gangrene. This infection is mainly acquired through wounds and contact with soil particles, as we noticed in the patient's arm.
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The number of snails in a given Alabama creek bed by each of 30 segments of the creek is as follows:
32, 6, 21, 10, 8, 11, 12, 36, 17, 16, 15, 18, 40, 24, 21, 23, 24, 24, 29, 1, 4, 9, 32, 23, 40, 15, 29, 25, 33, 20
What is the MODE of the number of snails?
Question 7 options:
24
23
21
Difference between plants and animal In terms of feeding
Answer:Plants
Explanation:animals
4. Which characteristic of life should be the title of this graph?
A. Cellular Basis
B. Growth
C. Homeostasis
D. Reproduction
The characteristic of life which fit the title of this graph is homeostasis.
Option c is the correct answer choice.
This goes to say that all living organisms share a similar characteristics such as homeostasis
Be that as it may, it is very important that living things maintain a stable internal environment. This homeostasis in particular means the mentainance of a fairly internal environment of an organism
Characteristics of living organismsLiving things be it plants or animals share a number of key characteristics or functions such as:
MovementRespirationHomeostasisReproductionGrowth EvolutionCompetitionExcretionComplete question:
Which characteristic of life should be the title of this graph?
A. Cellular Basis
B. Growth
C. Homeostasis
D. Reproduction
The graph is attached is attached to the question
So therefore, the characteristic of life which fit the title of this graph is homeostasis.
Option c is the correct answer choice.
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What would the answer be? I need it asap!!!
Answer:
Galactose
Explanation:
The enzyme 2 that acts on galactose will be unavailable hence Galactose will increase
prior to the work of blank, scientists did not distinguish between members of the archaea and the bacteria.
Prior to the work of Carl Woese, scientists did not distinguish between members of the archaea and the bacteria.
What is Carle woese famous for ?Microbiologist Carl Woese made significant contributions to phylogenic taxonomy. Prokaryotic and eukaryotic were the first two domains on the tree of life, however Woese challenged this idea using ribosomal RNA (rRNA)
It was proposed that these species were as unrelated to bacteria as bacteria are to eukaryotes in a 1977 paper published by Woese and his postdoctoral fellow George Fox in the Proceedings of the National Academy of Sciences.The way Woese used to identify this "third form of life," comparing the sequences of one specific molecule essential to cellular function, called ribosomal RNA, has since become the norm for identifying and categorising all species.Learn more about Carl Woese here:
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with age, small crystals or clumps of gel may form in the vitreous humor of the eye that cast shadows on the retina. what are these tiny objects called?
With age, small crystals or clumps of gel may form in the vitreous humor of the eye that cast shadows on the retina. These tiny objects are called floaters.
Vitreous humor is a transparent gel-like liquid present between the lens and the retina of the eye. The vitreous serves various purposes like: providing nourishment to the lens, supporting eye growth and also support the retina.
Eye floaters are the tiny spots in the vision. They are black or grey in color that move along with the eye movement. The floaters are normal to appear with the old age. However if the floaters are more than usual, then consultation with the doctor is essential.
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A small part of the human y chromosome contains the gene that is responsible for determining maleness. What is the name of this gene?.
Because handiest men have the Y chromosome, the genes in this chromosome have a tendency to be worried in male intercourse dedication and improvement. Sex is decided with the aid of using the SRY gene, that's liable for the improvement of a fetus right into a male.
Y chromosome genes and located that almost all of them have been dosage-dependent—that is, they required copies of the gene to function. For many genes at the intercourse chromosomes, handiest one reproduction is needed.
In females, the reproduction on the second one X chromosome is became off and in men, the gene is lacking altogether.) But with those genes, the girl has one on every X chromosome and the male has a duplicate on each the X and Y chromosomes.
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human neural stem cell transplants to address multiple pathologies associated with traumatic brain injury.
For traumatic brain injury (TBI), neural stem cell (NSC) transplantation is a potential option
What is traumatic brain injury?TBI is a change in brain function brought on by an outside stimulus and showing signs of brain pathology. It might result from a hit to the head, a blast, a jolt, or a bump, even one that penetrates the skull. Due to its financial consequences, TBI is a public health issue on a global scale. The majority of TBIs are treatable, do not require hospitalization, but they can affect productivity. The majority of TBI care expenses are attributable to a lower percentage of TBI caused by falls or penetrating TBI (PTBI), which necessitates hospitalization.
Why human neural stem cell transplant was considered beneficial for TBIFor traumatic brain damage, neural stem cell (NSC) therapy is a potential option (TBI). Mesenchymal stem cells (MSCs) have also been researched as a potential TBI treatment because of their roles in brain regeneration and neurotrophic effects. In the current investigation, autologous MSC-derived NSC-like cell transplantation in 10 patients with severe TBI was examined for safety, viability, and biological effects. All the patients had physical and neurological examinations, standard laboratory testing, and evaluations of the results of neuroradiological studies after receiving intravenous or intrathecal injections of human NSC-like cells. The findings showed that most patients had, to varying degrees, improved neurological function during the follow-up period. Following transplantation, no patient experienced any mortality or severe adverse effects.
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the receptors for the sense of dynamic equilibrium are housed in what portion of the bony labyrinth?
The sensory crista of the bony labyrinth, present in the inner ear contains specific receptors that sense movements in the body and maintain dynamic equilibrium.
What is the structure of the ear?
There are three interconnecting sections in which the ear is divided. It is the external, middle, and inner ears. In the external and middle ears, the main functions performed are the transmission of sound. The inner ear has the cochlea, which is called the organ of hearing, it is also the region for the body’s organ of balance called the peripheral vestibular apparatus.
The cochlea has the Corti which response to different sound frequencies. The part of the ear responsible for maintaining balance, coordinating the position of the head, and eye movement is the peripheral vestibular apparatus.
Therefore, the sensory crista of the bony labyrinth, present in the inner ear contains specific receptors that sense movements in the body and maintain dynamic equilibrium.
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why does the body need to use energy for this process
If aspartate was linked to amino acids lysine, tyrosine, and serine, would this tetrapeptide be which of the
following?
Amphipathic
Hydrophobic
Cannot be determined from information given
Hydrophilic
If aspartate was linked to amino acids lysine, tyrosine, and serine, this tetrapeptide would be hydrophilic; option D.
What are amino acids?Amino acids are the basic monomer units from which proteins are made.
Amino acids consists of the following general parts:
a central carbon atoman amino groupan R groupa carboxyl groupa hydrogen atomThe R groups of amino acids determines the nature and polarity of amino acids.
The R groups of the amino acids aspartate, lysine, tyrosine, and serine are all polar groups.
Therefore, the tetra peptides formed from the amino acids will be hydrophilic.
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some species of bacteria can live in hot springs. their cells contain enzymes that function best at temperatures of 70c or higher.
The enzymes will not increase the rate of reactions as much as they would at 70°C
Enzymes are biological catalyst that help in speeding up a reaction. Although most enzymes function best at normal temperatures, there are many others which work best at higher or lower temperatures. Temperature plays an important role for the proper working of an enzyme.
An enzyme that functions best at 70 degrees Celsius will increase the rate of a reaction by maximum amount is this temperature will be provided to it. It's activation energy will be maximum at this temperature.
However, if the temperature is lowered for this enzyme, then it will not be able to speed up the rate of reactions with the same intensity.
Although a part of your question is missing, you might be referring to this question:
Some bacteria live in hot springs. Their cells contain enzymes that function best at temperatures of 70°C or higher. At a temperature of 50°C, how will the enzymes in these bacterial cells most likely be affected?
A. The enzymes will be destroyed by lysosomes.
B. The enzymes will lose their bond structure and fall apart.
C. The enzymes will require less energy to function than at 70°C.
D. The enzymes will not increase the rate of reactions as much as they would at 70°C.
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we initially reasoned that conventional fluorescently-labeled antibodies could potentially be used in exm if a sufficient number of linkages could be formed between the antibodies and hydrogel so that protease-digested antibody fragments would remain linked to the hydrogel (fig. 1).
Expansion Microscopy (ExM), an ultra microscopy method that employs physical expansion of fixed specimens to enable features closer than the diffraction limit of light (250 nm) to become resolvable in the expanded specimen, was recently developed by Boyden and colleagues.
Fluorophores on fixed specimens are connected to a swellable polymer that is physically stretched to permit super-resolution microscopy with conventional microscopes. This technique, called expansion microscopy, has only recently been developed. We have created and described novel techniques for attaching fluorophores to the polymer, making it possible to use traditional fluorescently-labeled fluorescent proteins and antibodies for expansion microscopy. Our techniques will help the approach spread quickly and will simplify the process and broaden the range of appropriate labels.
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endangered species with very small populations are especially at risk of loss of genetic diversity due to: mutation genetic drift natural selection immigration
endangered species with very small populations are especially at risk of loss of genetic diversity due to immigration
In the biological terms, the immigration was means new organisms joining or entering the different population. These new organisms are would bring with them the new alleles or the new genes to be the existing population. It would be result in the genes transfer. the Genes transfer refers to the the movement of the genetic material between the organisms
For example, the salmon start life in the rivers and to migrate to the sea to feed and then grow. After then spending up to seven years in the ocean, they may migrate back to the rivers and they were born in so that they can be spawn.
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damage in systemic lupus erythematosus results from the formation of antigen/antibody complexes medicated by
the bacterial flagellum moves multiple choice by rotation that is powered by atp. by rotation that is powered by the proton motive force. in a wave-like fashion that is powered by atp. in a wave-like fashion that is powered by the proton motive force.
The bacterial flagellum moves (b) by rotation that is powered by the proton motive force.
Flagellum is the motile structure found in many prokaryotic organisms and a few eukaryotic organisms. It is along thread-like structure. It can help organisms in moving or swimming. An organism may have a single flagellum or may have multiple flagella.
Proton motive force (pmf)is the force generated due to the pumping of the protons across the plasma membrane. In mitochondria, this force aids in the production of ATP. There are two components of pmf are: membrane potential (ΔΨ) and the gradient of proton concentration (ΔpH).
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When you consume foods, digestion begins in the mouth where the chewed food encounters this enzyme.
When you consume foods, digestion begins in the mouth where the chewed food encounters this enzyme called salivary amylase.
In what enzymes does the mouth ?Saliva has unique enzymes that aid in the digestion of the carbs in your diet. Starches, which are complex carbs, are broken down by an enzyme called amylase into sugars, which your body can absorb more readily. Additionally, lingual lipase, an enzyme that breaks down fats, is present in saliva.
The digestion of carbohydrates begins in the mouth. The salivary enzyme amylase begins the breakdown of food starches into maltose, a diasaccharide.
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. identify the most accurate way to classify the type of caries seen on the maxillary anterior teeth. a. root caries b. recurrent caries c. rampant caries d. facial / lingual caries
The most common type of caries seen on the maxillary anterior teeth are (c) rampant caries.
Caries is a disease of the teeth where they suffer tooth decay or formation of cavities. In simple terms, it is the destruction of teeth. The causes for dental caries can be: improper brushing, eating too much sugary food, growth of bacteria in mouth, etc.
Maxillary anterior teeth are the ones formed at the maxillary jawbone. The types of teeth present are: top incisors, molars, premolars, and canines. They suffer from rampant caries where lesions appear on the teeth. The healthy teeth also are affected in this.
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snyder m, kish t. sertraline-induced rhabdomyolysis: a case report and literature review. am j ther 2016;23:e561-5
snyder m, kish t. sertraline-induced rhabdomyolysis: a case report and literature review. am j ther 2016;23:e561-5
A case of sertraline-induced rhabdomyolysis in a female patient with a history of depression is the focus of this investigation.
A Hispanic lady in her 25s with a history of depression provided to the emergency room (ED) with the primary grievance of muscle discomfort and edema as well as black urine. Creatine phosphokinase for the affected person became 15,103 U/L. The patient had IV ordinary saline remedy, but their symptoms remained. On day 2, their creatine phosphokinase degree peaked at sixteen,778 U/L.
The affected person's prescription records changed into only noteworthy for sertraline, and he or she claimed to have finished a difficult but everyday exercising the day earlier than displaying up at the emergency department. notably, sertraline changed into upped from a hundred mg day by day to 150 mg every day six weeks previous to her ED visit.
Sertraline and latest exercise had been each suspected as contributing factors to the affected person's rhabdomyolysis.
5 case reviews have described the rhabdomyolysis that an SSRI (selective serotonin reuptake inhibitor) reasons. similar to the majority of memories, our patient had rhabdomyolysis after taking an SSRI and exercising. Our patient, in evaluation to the majority of earlier debts, was now not taking any additional drugs recognized to be related to rhabdomyolysis and had engaged in everyday workout before supplying with the condition.
Sertraline may additionally play a role in muscle contraction and relaxation, ensuing in a shorter time to contracture and an extended period of contraction, consistent with a concept, even supposing the mechanism of SSRI-prompted rhabdomyolysis is unknown.
Sertraline and different SSRI use, especially whilst combined with full of life interest, may additionally growth the risk of developing rhabdomyolysis.
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. how would you design an experiment to test if a taller beak confers a fitness benefit during a drought?
Astrocytes offer structural support for neurons as well as essential impulses and nutrients. Interneurons are neurons that are trained to transport impulses from receptor cells into the brain or spinal cord. A mixed nerve has a variety of neuroglial cells. The neural space is the space between neurons.
Astrocytes were previously thought to only provide trophic support for neurons in the central nervous system, but recent research has revealed their importance in a variety of functions including neurotransmission, metabolite and electrolyte homeostasis, cell signalling, inflammation, and synapse modulation. A Furthermore, astrocytes have the ability to phagocytoze synapses, modify neurotrophin production, and remove debris.
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test for the taller beak confers of fitness benefit during the drought First was set the rainfall to average or the high levels. Then main set the rainfall to a very low level. Compare to how the adults with shorter versus and taller beaks can survive or how many offspring they have
The Droughts are caused by the low precipitation over an extended period of time. the Atmospheric conditions such as the climate change, the ocean temperatures, the changes in the jet stream, and the changes in the local landscape are the all factors that was contribute to the drought.
The Drought can be limit the growing season and the create conditions that was encourage to insect and disease infestation in the certain crops. Low crop yields that can result in the rising food prices and the shortages, the potentially leading to the malnutrition. Drought can also be affect the health of the livestock and raised for food.
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PLEASE HELP!!
What do all living organisms contain?
Answer: cells
Explanation:
Answer:
All living organisms contain cells
identify the mass above which a man whose height is 185 cm would be classified as obese
Answer:
Around 90.7
Explanation:
if a person eats one hard-boiled egg and digests the egg fully, cellular respiration will convert most of this energy into
If a person eats one hard-boiled egg and digests the egg fully, cellular respiration will convert most of this energy into heat.
The process of cellular respiration is just like the process of burning. When a person eats a hard-boiled egg and energy from is consumed in cellular respiration, then in the end most of it will be converted into heat.
Although as a result of ATP is produced but energy is also lost as heat during cellular respiration. Most of the energy from glucose that is used in cellular respiration is dissipated as heat.
The process of cellular respiration is opposite to that of photosynthesis. In the process of photosynthesis, glucose is made. In the process of cellular respiration, glucose is utilized.
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