Answer:
Base pair - smallest
Gene
Chromosome
Nucleus - largest
Dengue fever is an infectious disease of humans that is caused by a virus. There are four main viral strains, and an individual can never be infected by the same strain twice. However, a second infection can occur by any of the other strains. The severity of the second infection depends on the identity of both the strain that caused the first infection and the strain causing the second infection, as well as the order in which these were acquired.
Required:
How many different levels of severity are possible for an individual acquiring a second infection
Answer:
12
Explanation:
Suppose the four different strains are P, Q, R, S. Thus, the first infection can be from any of the four strains and it occurs in 4 ways.
Since an individual cannot be infected again with the strain from which he/she is been previously infected;
Then, at the second time;
The possible number of strain to be infected with = 4-1 = 3 ways
Thus; the number of possible different levels of severity can be viewed by forming two lettered word P, Q, R, and S without repetition which is:
= 4 × 3
= 12
What is the 1st phase of mitosis
prophase
interphase
metaphase
anaphase
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
A.
These are examples of predation because lions and cheetahs eat woodpeckers and squirrels.
B.
These are examples of competition because these organisms are fighting for resources.
C.
These are examples of predation because the organisms are trying to take each other’s food and homes.
D.
These are examples of competition because no organisms are helped or harmed.
Answer:
b
Explanation:
they are fighting for the same things so it would be competition
Evan was 54 meters away from his car adter shopping. It took 9 seconds to push a shopping card one third of the way directly to his car at a constant velocity. What was his velocity whilehe was pushing the cart ?
The velocity while Evan was pushing the cart is 50.15m/s.
How to calculate velocity?The velocity of a moving body can be calculated using one of the following equations of motion as follows:
s = ut + ½at²
Where;
s = distanceu = velocityt = timea = accelerationAccording to this question, Evan was 54 meters away from his car after shopping. It took 9 seconds to push a shopping card one third of the way directly to his car at a constant velocity. The velocity used is as follows:
54 = (u × 9) - ½ × 9.81 × 9²
54 = 9u - 397.31
54 - 397.31 = 9u
u = 50.15m/s
Therefore, 50.15m/s is the velocity while pushing the cart.
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Evan's velocity while pushing the cart towards his car would be 2 m/s.
Velocity calculationThe velocity of a moving object is the speed of the object in a specific direction. Thus, velocity is the ratio of distance covered relative to time.
Mathematically, velocity = distance/time.
Evans took a total of 9 seconds to cover 1/3 of his distance from his car.
1/3 of 54 = 18 meters.
Thus, Evan covered a distance of 18 meters in 9 seconds. His speed can be calculated as follows:
Distance = 18 meters
Time = 9 seconds
Speed = 18/9
= 2 m/s
In other words, the velocity of Evan while he was pushing the cart is 2 m/s towards his car.
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A testcross of AaBb gives 10% aaBb progeny. What percentage of the progeny will be Ab/ab or ab/ab if the same plant is self-fertilized
Answer: Ab/ab (or Aabb) = 12.5%
aabb (or ab/ab) = 0.625%
Explanation:
Due to some error on the page, the answer to this question has been attached in a file.
If a solution is 8% solute, it is [x]% solvent
If a solution is 8% solute, that means 8% of it (or 8/100ths) is made up of the stuff you added to it. We know that the whole solution is 100%. Therefore, we need to subtract 8% from 100%, which gives us 92%. We know this is correct since you can't have a less than 100% solution, since it exists wholly.
92% should be your answer.
what are some examples of short term crops?
Answer:
Any leafy veggie and or cereals are short term crops such as green beans, dry beans, cucumbers, squash
Explanation:
Answer:
Crops like Leafy green vegetables, paddy, millets, and cereals comes under short term.
Explanation:
Short-term crops are the crops that are grown and managed only for a short period of time. They are grown especially to maintain the water quality, soil fertility, soil erosion, suppression of weeds and pests.
Examples of short-term crops that are grown for 45-60 days are cowpea, buckwheat, oats, yellow mustard, oilseed radish, and sorghum.
Suppose a father and mother claim that they have been given the wrong baby at the hospital. Both parents are group A. The baby they have been given is group O. Could the baby be theirs?
5. Explain why these are termed so?
a. Saccharomyces for Yeast
b. Rhododendron for Laligurans
c. Spirogyra for Pond silk.
d. Polymorphism, Metamorphism & Metaphase
e. Apospory, apogamy, apomixis, cytomixis
f. Synandrous, Syncarpous, Syngenesious, Synapsis.
Answer and Explanation
a. Saccharomyces for Yeast: Saccharomyces is a genus of fungi in the family Saccharomycetaceae, and it is Latin for "sugar fungus." Yeast is a common type of fungus that ferments sugars to produce alcohol and carbon dioxide, so the genus name Saccharomyces is fitting for the species that make up this group of yeasts.
b. Rhododendron for Laligurans: Rhododendron is a genus of plants in the family Ericaceae, and is native to Asia. The name "Rhododendron" comes from the Greek words "rhodon" meaning rose and "dendron" meaning tree. The name refers to the many-petalled flowers that many of the species have.
Laligurans is a species of this genus, with beautiful flowers and found mainly in Himalayan region.
c. Spirogyra for Pond silk: Spirogyra is a genus of green algae in the order Zygnematales, commonly found in freshwater habitats. The name "Spirogyra" is derived from Greek words "spira" meaning coil and "gyros" meaning ring, referring to the spiral chloroplasts present in the cells. The common name "Pond silk" refers to the long, thin, green filaments that make up the algal mat.
d. Polymorphism, Metamorphism & Metaphase:
Polymorphism refers to the occurrence of more than one form of an organism in the same population.
Metamorphism refers to the process of transformation in the form of the organism during its life cycle.
Metaphase refers to a stage in the cell cycle when chromosomes align in the center of the cell during cell division.
e. Apospory, apogamy, apomixis, cytomixis:
Apospory refers to the development of a new individual from a cell other than a sperm or egg cell.
Apogamy refers to the development of an embryo from a cell other than a sperm or egg cell.
Apomixis refers to the development of a new individual from an asexual reproductive cell or structure.
Cytomixis refers to the mixing of genetic material during cell division.
f. Synandrous, Syncarpous, Syngenesious, Synapsis:
Synandrous refers to the condition in which multiple stamens are fused together, as in certain flowers.
Syncarpous refers to the condition where multiple carpels are fused together to form a single pistil.
Syngenesious refers to the condition in which the stamens are fused to the style, as in certain flowers
Synapsis refers to the physical alignment of homologous chromosomes during meiosis, leading to the exchange of genetic material.
PLEASE HELP QUICK!!!
During the cell cycle, which of the following happens as cells mature and begin to divide?
A. The cytoplasm begins to divide.
B. The nucleus begins to divide.
C. Another cell is created.
D. The cell loses all of its genetic information.
Answer:
D:The cell loses all of its genetic information.
Explanation:
Cell cycles reduces 70 to 10,357 beats. however it is type of functionality to produce sperm by beats divide the 70 to 2 then mature or habitats might be possible to formed a new genetic and there are specifically 2 types of it BINARY is first and INFORMATION are 2nd HOPE IT HELPS!!
Which question should be asked to help determine whether a natural resources is a renewable energy resources
the blank determines which traits are adaptive during the process of natural selection
The environment determines which traits are adaptive during the process of natural selection.
What is natural selection?Natural selection is the process by which certain traits become more or less common in a population over time based on their effect on the survival and reproduction of the individuals that possess them. The individuals with traits that are better suited to their environment are more likely to survive and reproduce, passing those traits on to their offspring. Over time, this can lead to the evolution of species, as certain traits become more common in the population.
Natural selection is one of the main mechanisms of evolution and is often referred to as "survival of the fittest," although the term "fitness" in this context refers to how well an organism can survive and reproduce in its specific environment, rather than its physical strength or athleticism. Charles Darwin and Alfred Russel Wallace were the first to propose the theory of natural selection, it's based on observations of natural variation within populations, heritability of traits and the fact that more individuals are born than can survive to reproduce.
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How could increasing the number of plants help you decrease error in the experiment? Check all possible reasons.
It would increase the sampling error.
It would reduce the significance of any single measurement error.
It would make calculations easier.
Having more data would make the average height less affected by one or two plants that are randomly shorter or taller.
It would make a plant’s death less of an issue.
Increasing the number of plants help you decrease error in the experiment through the following below:
It would reduce the significance of any single measurement error.Having more data would make the average height less affected by one or two plants that are randomly shorter or taller.It would make a plant’s death less of an issue.What is an Experiment?This is referred to as a procedure which is usually carried out in the laboratory and it is used to support or refute a hypothesis.
Increasing the number of samples when performing an experiment will ensure that the results derived are more accurate which is because it reduces the significance of any single measurement error.
It also helps to ensure that unforeseen circumstances such as the death of the organism isn't a big deal as they can be replaced by other samples thereby making it the correct choice.
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How organisms have changed over time
Evolutionary history
Fossil record
Anatomy
Common ancestry
Evolution
Which of the following is not a good method in examining fossils anatomical features of
living organisms?
O a. Homologous structures
O b. Vestigial structures
O c.
Index fossils
O d. Analogous structures
Answer:
d. Analogous structures is not a good method in examining fossils anatomical features of living organisms.
Explanation:
Analogous structures are physical characteristics that are similar in different organisms due to convergent evolution, rather than being inherited from a common ancestor. While analogous structures can provide valuable information about the environment and adaptations of living organisms, they are not helpful in examining the fossils of ancient organisms because they do not reflect the evolutionary relationships between different species. Homologous structures, vestigial structures, and index fossils are all useful methods in examining fossil anatomy, as they can provide insights into the evolutionary relationships and characteristics of ancient organisms.
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.
How can the presence of one species in the same ecosystem assist another?A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.
The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.
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NEED ANSWERED ASAP
A three letter base sequence on a mRNA molecule called a _____ translates for a particular amino acid.
Answer:
codon
Explanation:
At times, a cell may be infected with a virus, or there may be an organelle within the cell that is not working any longer. A cell needs to remove such waste materials to maintain its well-being. Enzymes within the cell break down these waste materials, and the broken down materials are released from the cell. Which organelles within the cell are most responsible for processing the waste and removing it from the cell?
Answer:
Lysosomes.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Generally, cells have the ability to independently replicate themselves. In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles found in all living organisms such as trees, birds, and bacteria includes; nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, ribosomes, chromosomes, endoplasmic reticulum, vesicles, lysosomes, etc.
Lysosomes are organelles within the cell that are most responsible for processing waste and removing it from the cell.
Basically, they are responsible for absorbing materials and breaking the materials taken in by the cells because they're typically rich in various acid hydrolases or hydrolytic enzymes such as phosphatases, lipases, nucleases, proteases, etc.
Nitrogen Cycle - High School STEM Case
Answer:
In general, the nitrogen cycle has five steps:
Nitrogen fixation (N2 to NH3/ NH4+ or NO3-)
Nitrification (NH3 to NO3-)
Assimilation (Incorporation of NH3 and NO3- into biological tissues)
Ammonification (organic nitrogen compounds to NH3)
Denitrification(NO3- to N2)
Explanation:
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
The nitrogen cycle is the biogeochemical process through which nitrogen is changed into a variety of chemical forms as it moves across ecosystems in the atmosphere, on land, and in the sea.
What is nitrogen cycle?In the nitrogen cycle, nitrogen circulates through both living and non-living objects, including the atmosphere, soil, water, plants, animals, and microorganisms. tiny living things that are ubiquitous and typically only have one cell.
Organic material in soils can decompose or break down as a result of bacteria. Nitrogen must alter its forms in order to progress through the cycle's many stages.
The five steps of nitrogen cycle is volatilization, mineralization, nitrification, immobilization, and denitrification. The fixation process is known as volatilization in this image because soil bacteria convert nitrogen gas (N2) into volatile ammonia (NH3).
Therefore, The nitrogen cycle is the biogeochemical process through which nitrogen is changed into a variety of chemical forms as it moves across ecosystems in the atmosphere, on land, and in the sea.
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soft, bi-lobed gland that houses and develops lymphocytes
In the feedback loop the integrating center sends information to the
In the feedback loop, the integrating center sends information to the effector.
What is the process of the feedback loop?The process of the feedback loop makes reference to a natural mechanism in which the outcome of a given biological process feeds the entry in the system and thus generates a cycle where products are also used to initiate the process.
Therefore, with this data, we can see that the process of the feedback loop requires the presence of an effector which receives the output and converts it into the input.
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what type of transport is used for glucose in blood and intenstinal cells
HELP LIMITED TIME!!!!!!!!!!!!!!
Which of the following can be affected by a change in the Earth's
climate?
Select one:
1, Weather
2, Plants and animals
3, All of these can be affected
4, Ecosystems
Answer:
All of these can be affected
Explanation:
A change in the Earth's climate can have a number of impacts on the planet and its inhabitants. Weather is a key aspect of climate, and a change in climate can lead to changes in patterns of weather, such as changes in the frequency or intensity of storms, droughts, or other extreme weather events. These changes can have significant impacts on plants and animals, as they may be adapted to specific types of weather and climate conditions. Ecosystems, which are complex systems of interacting plants, animals, and other organisms, can also be affected by changes in climate, as these changes can alter the relationships between different species and the availability of resources. Overall, climate change can have a range of impacts on the Earth and its inhabitants, and understanding these impacts is an important part of addressing this global challenge.
Which option would Carolus Linnaeus MOST likely agree with? Which line from the article supports your answer?
Bats and birds should be grouped together in the same category of organism. "At that time, Linnaeus classified species based on their looks,
O but as time passed and technology advanced, homologous structures became more important in classifying species on the phylogenetic tree of
He"
Whales and fish are in the same category because they share several homologous structures. "For example, whales were once classified as
fish because they live in water and have flippers."
In order to correctly classity different species of organisms scientists must analyze their DNA. "It wasn't until the latter half of the 20th century
that researchers were able to analyze and compare DNA between species."
o
Most animals descended from a common set of organisms. "Evidence of this common ancestry can be seen in the structure and development of
homologous structures, even if the functions of these structures are different."
Answer:
Most animals descended from a common set of organisms. "Evidence of this common ancestry can be seen in the structure and development of
homologous structures, even if the functions of these structures are different
Is water wet? Is milk wet as well? Just curious.
NEED ANSWERED ASAP
A three letter base sequence on a mRNA molecule called a ____ translates for a particular amino acid.
Answer:
anticodon sequence of three nucleotides on a tRNA molecule that bond to a complementary sequence on an mRNA molecule.
The correct answer is codon. Codons present in mRNA molecules translate for a particular amino acid.
What is a codon?A codon is a group of three DNA or RNA nucleotides that codes for a particular amino acid or protein synthesis halt signal. Four nucleotides make up the language of DNA and RNA molecules, while 20 amino acids make up the language of protein molecules.The key to translating between these two languages is provided by codons. The entire set of codons—each one corresponding to a single amino acid—is referred to as the genetic code. During translation, an mRNA's codons are read starting at a start codon and continuing until they reach a stop codon. The order of amino acids in a protein, from the N-terminus (methionine) to the C-terminus, is determined by mRNA codons, which are read from 5' to 3'.Thus, a codon is a three-letter base sequence that translates for a particular amino acid.
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What is taxonomy?
a.
the scientific study of how living things are classified
b.
the name of Aristotle’s classification system
c.
the process used by geologists to classify rocks
d.
the process of observing an organism’s behavior
Please select the best answer from the choices provided
A
B
C
D
Answer: B.
Explanation: It was Aristotle who first introduced the two key concepts of taxonomy as we practice it today: classification of organisms by type and binomial definition. Aristotle was the first to attempt to classify all the kinds of animals in his History of Animals (Historia Animalium in Latin). He grouped the types of creatures according to their similarities: animals with blood and animals without blood, animals that live in water, and animals that live on land.
<3 Bee
What was the ancient view of the world and animals? Give an example using Aristotle’s interpretation
Answer:
800 million years ago, the first animal life began on Earth. And discussions were seen between different scientists based on the relationship between animals and humans. As per Aristotle (Father of Biology), humans were different from that of the animals. He stated that humans share all the characters which manifest themselves in different types of soul that the animal possess, with addition to a rational soul which was exclusively found only in humans. As per Aristotle there were three different types of soul, those were:-
Nutritive Appetitive RationalThe first two soul were found in every living organisms including the plants. But the last one, the rational soul was unique to Humans as per Aristotle.
According to Aristotle, the ancient world looked in a manner that the Earth was the located at the center of the Universe. And all other celestial bodies rotated around the Earth. The Earth was termed to be stationary. And it was assumed that in sub lunar region, there were four basic elements- earth, air , fire and water . And all of these elements had an unique essential property based on their movement. Where, the Earth moved towards the centre of the Universe. The water too moved towards the centre of the universe but not in a degree of which the earth moved. The air moved above the Earth and the water. And the fire moved away from the centre of universe. It was also said that the heaven was made up of a weightless substance that was called as to be 'aether'.
what is the definition for necessary components in verbal reasoning
Explanation:
In verbal reasoning, the necessary components are the elements that are required for a logical argument or conclusion to be considered valid. These components include:
Answer:
* Premises: These are statements that are presented as evidence or reasons to support a conclusion.
* Conclusion: This is the main point or claim that is being made based on the evidence provided in the premises.
* Logic: This refers to the principles and rules that are used to connect the premises and the conclusion in a valid way.
* Evidence: This is the factual information or data that supports the premises and helps to establish the truth of the conclusion.
Is iron malleable, ductile, or brittle?
Answer: Iron is both malleable and ductile .
Explanation:. (malleable) because it has the ability to be fold into any shape of material.
. and(ductile) because it is able to be deformed without losing toughness.