The founder effect and the bottleneck effect are considered the essence.
50 points help please
Answer:
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Explanation:
Answer:I'm not sure
Explanation:
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A. Identify two examples of environmental factors that may impact myeloperoxidase activity. Describe how each of the environmental factors would affect the reaction tare of an enzyme.
B. Predict the how researchers can use myeloperoxidase activity as oxidative stress biomarkers in patients with rheumatoid arthritis. Provide reasoning to justify your prediction.
Answer:
So... MPO is most abundantly expressed in neutrophil granulocytes, and produces hypohalous acids to carry out their antimicrobial activity through oxidative damage during the respiratory burst. It requires heme as a cofactor.
Regarding environmental factors ... obviously the first factor is the presence of an infection and inflammation that cause an increase in the activity and production of MPO. Second, alterations in the MPO gene cause its congenital deficiency which predispose to infections.
Rheumatoid arthritis is an autoimmune and autoinflammatory rheumatoid disease in which significant joint damage is observed. In the joint capsule, inflamed infiltrates are observed composed of neutrophils and lymphocytes. Measurement of MPO levels in the joint cavity could therefore be related to the amount of neutrophils and thus to the extent of the inflammatory damage.
When the respiratory burst occurs, MPO is most abundantly expressed in neutrophil granulocytes, which then create hypohalous acids to carry out their antimicrobial function through oxidative damage.
What is MPO?Regarding environmental causes, the first one is undoubtedly the existence of an infection and inflammation, which elevate MPO activity and production.
Second, changes to the MPO gene result in its congenital deficit, which makes people more susceptible to infections.
Therefore, the amount of neutrophils and, consequently, the severity of the inflammatory response might be connected by the measurement of MPO levels in the joint cavity.
Therefore, When the respiratory burst occurs, MPO is most abundantly expressed in neutrophil granulocytes, which then create hypohalous acids to carry out their antimicrobial function through oxidative damage.
To learn more about respiratory burst, refer to the link:
https://brainly.com/question/6574787
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Fresh water is water that does not contain any:
salt
dirt
chemicals
sediments
Answer:
salt
Explanation:
if water has salt it is no longer considered fresh, rather it is salt water
what type of plate boundary form trenches
If water is being extracted from an underground aquifer at a lower rate than precipitation is replenishing the aquifer, then the aquifer will eventually fill beyond
capacity.
True
False
Answer:
True
Explanation:
If precipitation occurs more frequently and it precipitates more than what is being extracted, it will eventually fill beyond capacity.
When NET FORCE is equal to
zero, a change in motion will
NOT occur. What amount of
force should be added to the
right side of the box if we DO
NOT want it to move?
Number Talk.
Armadillos have 32 pairs of chromosomes
18. What is the diploid number (2n) for the somatic cells of armadillos?
19. How many chromosomes are present at the beginning of mitosis in an armadillo cell?
20. How many chromosomes are present in each daughter cell at the end of mitosis?
If Armadillos have 32 pairs of chromosomes;
The diploid number (2n) for the somatic cells of armadillos is 64There will be 64 chromosomes at the beginning of mitosis in an armadillo cell. There will be 64 chromosomes in each daughter cell at the end of mitosis.MITOSIS:
Mitosis is the process by which a single cell produces two daughter cells that are genetically identical to one another. Mitosis results in daughter cells that possess the same number of chromosomes as the parent cell.This means that if Armadillos have 32 pairs of chromosomes i.e 64 chromosomes. The following applies:
The diploid number (2n) for the somatic cells of armadillos is 64There will be 64 chromosomes at the beginning of mitosis in an armadillo cell. There will be 64 chromosomes in each daughter cell at the end of mitosis.Learn more at: https://brainly.com/question/12327654?referrer=searchResults
An organism has a haploid number of 36. What is the organism's diploid
number?
Answer: 72.
Explanation: Haploid cells are those that have only a single set of chromosomes while diploid cells have two sets of chromosomes.
what does gradiant mean in biology
Answer:
The difference in the concentration of a substance between two areas is called the concentration gradient . The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse.
Explanation:
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How does your model show what happened to the circled rock material as a result of plate motion?
Answer:
Once exposed, they are weathered, both physically (by mechanical breaking of the rock) and chemically (by weathering of the minerals), and the weathering products — mostly small rock and mineral fragments — are eroded, transported, and then deposited as sediments. Therefore, the model should show signs of deterioration and subduction.
Explanation:
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a point mutations is a change in a single nucleotide in DNA true or false
Answer:
it's true!!!!!!!!!!!! ❤️
how the exposure to penicillin affects the survival of some bacteria in the population
Answer:
When exposed to penicillin, the frequency of resistant bacteria will increase as those that are resistant survive and reproduce. — The resistant bacteria will survive and they will produce offspring that are resistant
Explanation:
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A student wants to know if a Kangaroo rat (Diapodomys compactus) and a Kangaroo (Macropus osphranter) have the same genus. Based on the provided names, what can the student conclude about how the two organisms?
A.Both species’ first portion in their scientific name is different, so they are from different genus groups.
B.Both species have a two-part scientific name, so they are from the same genus groups.
C.Both species have kangaroo in their common name, so they are from the same genus groups.
D.Both species’ second portion in their scientific name is different, so they are from different genus groups.
Answer:
A. Both species first portion in their scientific name is different, so they are from different genus groups
list and explain two examples of how environment and genotype can interact.
Answer:
Sex determination in sea turtles depends on both genes and the temperature at which sea turtle eggs mature. Human height is affected both by genes and such factors as nutrition and health care.
Explanation:
hope this helps!
Carbon dioxide and phosphorus pentachloride are examples of ___________ bonds.
Answer:
ı want mark and point car its example
Explanation:
Answer:
covalent bonds
Explanation:
hope this helps
Sedimentary rocks are formed due to the
cooling of magma
weathering of rocks
changes in pressure
changes in temperature
Answer:
weathering of rocks
Explanation:
Answer:
Changes in pressure
Explanation:
Sedentary rocks are rocks that are often found in hillsides or creeks that have washed away surrounding sediment.
Which statement below applies to the evolutionary thoughts of Lamarck ONLY?
Organisms evolve over time
There are variations in populations which causes those that are best adapted to
live and reproduce successfully.
The most fit organisms survive to pass along beneficial these traits to their
offspring, resulting in more individuals each generation having the desired trait
Organisms acquire traits they need and then pass down these acquired
characteristics that they had obtained in their lifetime to their offspring.
Answer:
The most fit organisms survive to pass along beneficial these traits to their
offspring, resulting in more individuals each generation having the desired trait
Explanation:
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Answer:
c
Explanation: It is younger because it retains most of its potassium. This means that the potassium has not had time to break down yet. In the second rock there is little to none of it's original potassium. Meaning it has existed long enough for most of the potassium to break down.
10. Which statement correctly describes the roles of mRNA and tRNA in protein synthesis?
A. tRNA delivers DNA code to the ribosome and mRNA delivers amino acids to the ribosome
B. mRNA delivers DNA code to the ribosome and tRNA delivers amino acids to the ribosome
C. tRNA delivers DNA code to the nucleus and mRNA delivers proteins to the ribosome
D. mRNA delivers DNA code to the nucleus and tRNA delivers proteins to the ribosome
Answer:
The right answer is D.
Explanation:
The messenger ribonucleic acid, messenger RNA, or mRNA is a transient copy of a portion of the DNA corresponding to one or more genes. mRNA is used as an intermediate by cells for protein synthesis. Jacques Monod, François Jacob, and their collaborators issued and showed the concept of messenger RNA in 1960.
10 points
What is an abiotic or biotic factor that controls the number of individuals in a population called?
A. a food,
B. a niche.
C. a pollutant.
D. a limiting factor,
How do nuclear power plants affect the aquatic ecosystem?
A) Microbial agents used in nuclear power plants are deposited into the aquatic ecosystem.
B) Nuclear power plants are being built on land that used to be the habitat of aquatic life.
C) Heated water from nuclear power plants are deposited into the aquatic ecosystem.
D) Nuclear power plants pollute the air near the aquatic ecosystem.
Answer:
C - heated water from nuclear power plants are deposited into the aquatic ecosystem.
A student drew the following diagram to model the structure of a prairie
community. Which level represents short and tall grasses?
A. Level 2
B. Level 1
C. Level 4
D. Level 3
Answer: B. Level 1
Explanation:
The prairie community is dominated by the grass and vegetation cover. Thus the lower most trophic level in the prairie ecosystem are the short and tall grasses. They produce major source of biomass for the herbivores of the food chain. They consume the grasses can be designated as primary consumers of the food chain. Also the producers which are grasses which make up the large amount of biomass will provide a source of food for the consumers. They will receive 100 percent energy from the sun and they will utilize 90 percent of it to make their food by the process of photosynthesis. Only ten percent of energy is transferred to the next trophic level.
Answer:
B level 1
Explanation:
What is the difference between biology and chemistry?
Answer:
BIOLOGY IS STUDY ABOUT PLANT AND ANIMALS BUT CHEMSITRY IS ABOUT CHEMICAL EQUATIOB
Which description best contrasts meiosis and mitosis?
Meiosis occurs during sexual reproduction, whereas mitosis occurs during cell reproduction.
Meiosis involves the duplication of cells, whereas mitosis involves the growth of cells.
Meiosis happens in most animals, whereas mitosis only happens in humans.
Meiosis repairs old cells, whereas mitosis encourages new cells to grow.
Answer:
Meiosis occurs during sexual reproduction, whereas mitosis occurs during cell reproduction.
Explanation:
meiosis occurs in sex cells (gametes) while mitosis occurs in body cells (somatic cells)
4.This photograph was taken in 2004, 24 years after Mount Saint Helens erupted. Compare and contrast this photo with the previous three. What changes do you see in the biotic and abiotic factors? Does anything surprise you about this series of photographs?
Answer:
In this picture the ground is now completely covered in vegetation and trees are growing back all along the road and sides of the picture. Then there’s little flowers and grass and bushed all over the place. In the other pictures the ground was bare, with the second and third pictures having bushes and other little vegetation starting to grow. Changes in the Biotic Factors: There are now larger trees, there is grass, flowers, small bushes, and other small vegetation growing. Changes in Abiotic Factors: The ground is no longer dust and ash, The dead trunks and branches are covered in vegetation for the most part and are decomposing.
Explanation:
Brainliest please?!
Find 10 plants and animals along with their scientific names
Answer:
Apple : Malus domestica
Garlic: Allium sativum
Ginger: Zingiber officinale
15. The human embryo and all other vertebrate embryos have gill slits. This best supports the idea that
a. Life descended from water
b. Embryos can breathe under water
c. Vertebrates are evolutionarily related
d. Humans become fish before they become human
Answer:
b. is the answer
Explanation:
What are gametes? How are gametes different from regular body (somatic) cells?
Answer:
Gamtetes are sex cells, for humans, this manifests as the sperm cell and the egg cell.
Explanation:
Gametes are haploid cells unlike most of our body cells that are diploid cells.
What two factors cause the Gulf Stream to move away from the equator?
Answer:
The Gulf Stream is caused by a large system of circular currents and powerful winds, called an oceanic gyre.
As the warm water comes in, colder, denser water sinks and begins moving south—eventually flowing along the bottom of the ocean all the way to Antarctica.
Explanation:
why is earth's crust necessary for any life to take hold on our planet
Answer:
I think is this
Explanation:
The crust is a thin but important zone where dry, hot rock from the deep Earth reacts with the water and oxygen of the surface, making new kinds of minerals and rocks. It's also where plate-tectonic activity mixes and scrambles these new rocks and injects them with chemically active fluids.