Answer:
a. the immune system is fighting infection
Answer:
a. the immune system is fighting infection
Explanation:
Which choice best represents what has occurred when a new population emerges that is not compatible with its former population?
predation
extinction
isolation
speciation
Answer:
Speciation
Explanation:
Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics
The heavily myelinated fibers that connect the two cerebral hemispheres are collectively called the:
Answer: corpus callosum
Explanation: The corpus callosum is a collection of nerve fibers that connect the two hemispheres.
Transfusing mismatched blood types is a problem for a patient because A. it slows down digestion. B. it changes blood composition. C. it causes infection. D. it causes clots in blood vessels.
Answer:
D. it causes clots in blood vessels.
Explanation:
If you receive blood that is not compatible with your blood, your body produces antibodies to destroy the donor's blood cells. This process causes the transfusion reaction. Blood that you receive in a transfusion must be compatible with your own blood.
What is the process by which arteries become hard and stiff as a result of too much pressure?.
Answer: atherosclerosis
Explanation:
What determines the type of feedback? A. How close to equilibrium the characteristic is B. How the body responds to a change C. How much product is present already
Answer:
The awnser is B
Explanation: no explanation
The fact that determines the type of feedback is "How the body responds to a change?" Thus, option B is correct.
What is positive feedback?A feedback has been known as the process where a system responds to an external or internal stimulus. There are two major types of feedback in a system, they are negative and positive feedback or we can say that there are two types of feedback is there one is positive feedback and another one is negative feedback.
Positive feedback is a type of response that occur when an output or response is an enhancement of the input. It's output moves further away from equilibrium. A negative feedback occur when a fraction of the output is fed back to the system to control fluctuation of other output.A feedback has been known as the process where a system responds to an external or internal stimulus.
Therefore, The fact that determines the type of feedback is "How the body responds to a change?" Thus, option B is correct.
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What is the half life of a radioactive isotope if a 500 gram sample decays to 62.5 grams in 99 years?
Answer:
24.75 years
Explanation:
62.5 is 1/4 of 500, which means that in 99 years it passed through four half-lifes. So, you divide 99 by four and you get that the half-life is 24.75 years. 25 years if it was rounded
What is a scatter pattern? What can it tell a forensic anthropologist?
Answer:
A scatter plot (aka scatter chart, scatter graph) uses dots to represent values for two different numeric variables. The position of each dot on the horizontal and vertical axis indicates values for an individual data point. Scatter plots are used to observe relationships between variables.
A scattered pattern is an area where the bones are distributed after a while. This can tell anthropologist how long the body was in the area and the conditions scene the bones arrived.
Explanation:
Answer:
A scattered pattern is an area where the bones are distributed after a while. This can tell anthropologist how long the body was in the area and the conditions scene the bones arrived.
Which phrase describes air pressure?
Answer:
psi, or pounds square inch
An upper motor neuron supplying the lateral rectus muscle of the eye would be part of the ________ tract(s)
Answer:
corticospinal tract
The neurons that travel in the corticospinal tract are referred to as upper motor neurons; they synapse on neurons in the spinal cord called lower motor ...
Who discovered tetrapod fossils in Greenland
Answer:
It was discovered by Jennifer Clack
what is radioactive dating
Radioactive dating refers to the techniques used to date the age of rocks and fossils by radioactive isotopes.
What is Radioactive dating?Radioactive dating can be defined as a strategy to date the age of fossils by means of radioactive isotopes.
These methodologies (Radioactive dating) are fundamental for the application field of geologists and paleontologists.
In conclusion, Radioactive dating refers to the techniques used to date the age of rocks and fossils by radioactive isotopes.
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Which organisms from Kingdom Animalia are invertebrates?
Select all correct answers.
worms
amphibians
jellyfish
sponges
During a Vo2max test, many people have a Respiratory Exchange Ratio greater than 1.0 as they approach their VO2max. Why
The important of RER between 0.7 and 1 shows a blend of carbohydrates and fat as a basis of energy. In case the value is more significant than 1, it means anaerobic respiration as a result of more carbon dioxide being developed than the oxygen that is being consumed.
What is the difference between vo2max and relative vo2max?Absolute VO2 max is only the amount of oxygen you breathe in liters per minute.
This dose depends on your age, weight, size, and gender. Relative VO2 maximum Relative VO2 max calculates your weight in liters per minute per kilogram of body weight.
Thus, anaerobic respiration results of more carbon dioxide being forged than the oxygen that is being destroyed.
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which classification groups have linear chromosomeswhich classification groups have linear chromosomes
Until recently, prokaryotes did not contain linear plasmids or chromosomes, but they have since been discovered in spirochaetes, Gram-positive bacteria, and Gram-negative bacteria. Bacterial linear DNA has been classified into two structural kinds. Each end of linear plasmids from the spirochaete Borrelia has a covalently closed hairpin loop, while each end of linear plasmids from the Gram-positive filamentous Streptomyces has a covalently connected protein. In eukaryotic cells, replicons with comparable structures are more common than in prokaryotes. However, linear genomic architectures are likely more widespread in bacteria than previously thought, and some replicons may be able to switch between circular and linear isomers. The molecular biology of these widely scattered pieces reveals information about the origins of linear DNA in bacteria, including evidence of prokaryote-eukaryotes genetic exchange.
When biotic potential is completely
balanced with environmental resistance,
the population.
A. increases
B. decreases
C. stabilizes
Answer:
Stabalizes
Explanation:
Because it is a balanced environment.
Answer:
When biotic potential is completely
balanced with environmental resistance,
the population.
A. Increases
B. Decreases
C. StabilizesExplanation:
Because, biotic potential is completely balanced with environmental resistance, which make the population stabilizes.
Enzyme complexes that break down protein are called _____. lipases ubiquitins amylase proteasomes nucleases
Proteasomes are a large protein complex present in all eukaryotic cells that break down protein.
What are proteasomes?It is considered one of the main pathways involved in the processes of enzymatic protein degradation.
It is the group of proteins that are associated forming large complexes, whose function is to digest cytoplasmic proteins, generating peptides.
Therefore, we can conclude that proteasomes is a large protein complex present in all eukaryotic cells that breaks down protein .
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6. How did natural selection work in the red-eye frog egg hatching?
7. What was the explanation regarding the phenotypic plasticity of the red-eye frog eggs?
We can confirm that natural selection resulted in the coloration of the red-eye frog due to its higher chance of survival with this change in pigment.
Why would this color help the frog survive?Bright pigments are a common defense mechanism in nature. Organisms that are poisonous often evolve bright coloration as a warning to predators. Over time, natural selection ensures that the organisms who've successfully incorporated this pigmentation have much higher survival rates and therefore the species entirely evolves into possessing this trait, as was the case with the red-eye frog.
Therefore, we can confirm that natural selection resulted in the bright pigmentation of the red-eye frog because of the much higher survival rate that this adaptation afforded the organism.
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Which statement describes nuclear fission?
o the joining of two nuclei
o the use of neutrons to make energy
O the splitting of a nucleus
o the production of electricity from atoms
According to the the concept of nuclear reactions ,nuclear fission is the splitting of the nucleus.
What are nuclear reactions?
There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.
In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.
In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.
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The primary function of cellular respiration is to ________. A) determine the amount of heat needed by the human body B) provide the body with adequate amounts of vitamins and minerals C) efficiently monitor the energy needs of the body D) break down food molecules and generate ATP
The primary function of cellular respiration is to break down food molecules and generate ATP.
What is cellular respiration?Cellular respiration is the process by which living organisms obtain energy in form of ATP by breaking down food molecules in their cells.
Cellular respiration occurs in all living organisms because energy is required for their daily metabolic activities.
Therefore, the primary function of cellular respiration is to break down food molecules and generate ATP.
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Discuss the ways in which carbohydrate metabolic pathways, glycolysis, and the citric acid cycle interrelate with protein and lipid metabolic pathways
The ways in which the carbohydrate metabolic pathways, glycolysis and the citric acid cycle relate as they obtain energy for the body.
What is metabolic pathways?
Metabolic pathways is the set of chemical reactions that occur in cells that allow them to stay alive, grow and divide.
Glycolysis - oxidation of glucose to obtain ATPKrebs cycle - oxidation of acetyl-CoA in order to obtain energyOxidative phosphorylation - elimination of electrons released in the oxidation of glucose and acetyl-CoA. Much of the energy released in this process can be stored in the cell in the form of ATP.Pentose-phosphate pathway - synthesis of pentoses and obtaining reducing power for anabolic reactionsUrea cycle - elimination of NH4+ in less toxic formsβ-oxidation of fatty acids - transformation of fatty acids into acetyl-CoA, for later use by the Krebs cycle.Gluconeogenesis -synthesis of glucose from smaller molecules for further use by the brain.Whit this information, we can concclude that the ways in which the carbohydrate metabolic pathways, glycolysis and the citric acid cycle relate as they obtain energy for the body.
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what was the environment like in the arctic 1 million years ago?
Answer:
it had no ice
Explanation:
Answer:
The arctic was free of ice during summertime.
What is the correct sentence?
Genes code for proteins, and proteins code for traits.
Proteins code for genes, which code for traits.
Traits code for genes, and genes code for proteins.
Answer: The correct sequence in the expression of a trait is gene > protein > trait (Option B).
Explanation:
During gene transcription, a linear fragment of DNA referred to as a 'gene' is used as template to synthesize a complementary messenger RNA (mRNA) sequence.
Subsequently, this mRNA is then used as template to create a protein by a process called translation.
Moreover, phenotypic traits can be defined as all observable characteristics that an organism has.
The phenotypic traits are largely determined by the expression of either enzymatic or structural proteins, which interact to shape the phenotype of an organism.
In conclusion, the correct sequence in the expression of a trait is gene > protein > trait (Option B).
Answer:
Genes code for proteins, and proteins code for traits.
Explanation:
Simplified Response:
Genes direct the synthesis of RNA through transcription and translation. Through these processes, proteins are assembled. These proteins form the structures and functions that make up all living organisms. And therefore, these proteins are responsible for the traits of living organisms as well.
So, that's why the correct choice would be the first option.
Genes --> Proteins --> Traits
To determine the density of a rabbit population, one would need to know the number of rabbits and __________.
To determine the density of a rabbit population, one would need to know the number of rabbits and the size of the area in which they live.
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In your own words, explain how recombinant DNA techniques are used to produce medications.
Explanation:
Recombinant DNA technology enables us to change the physiology of a cell. Through this, we can produce many humanoid enzymes in other organisms... For example insulin.
Please help ASAP
I did answer but i got it wrong
If you can’t see the answers:
A: Denitrification
B: Uptake
C: Decomposition
D: Nitrogen fixation
Answer:
C i think
thats what mushrooms do - Decompositate
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In humans, which of these is required for carrying oxygen from the lungs to body cells?.
What does the sea otter do for the kelp forest?
O They control the urchin population by eating the urchins.
They control the sea slug population by eating plastic.
O They control the clownfish population by eating the kelp.
They control the kelp population by eating sea slugs.
Answer:
They eat large amounts of sea urchins, which keeps the creature's numbers in check and prevents the destruction of the kelp forest.
Explanation:
Answer: Sea otters have long been recognized as a classic example of a keystone species, a dominant predator that maintains the balance of kelp forest ecosystems by controlling populations of sea urchins, which are voracious kelp grazers.
2.In the model below what is most likely the reason for placing the farmland upstream from the factories?
Answer:
It is easier to send the raw materials to the factories to become finished goods.
Explanation:
I don't know if this was multiple choice, but you would put the farmland upstream from the factories so that the crops and other raw materials could easily go down to the factories to be finished. I hope this helped :)
In mammals, which structure supports the developing embryo if fertilization occurs?.
Answer:
It occurs in the ovaries, uterus,cervix and fallopian tube. give Brainiliest