What are three ways that antibodies help fight infection?

Answers

Answer 1

Answer: 1. agglutination of particulate matter, including bacteria and viruses, 2. opsonisation or coating over bacteria to facilitate recognition and phagocytosis by the phagocytes and 3. neutralization of toxins released by bacteria.

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The electron transport chain is part of which of the following processes
There is an algal bloom in a lake in a populated area. As the leading scientist for the water department, what is the most important thing to do, based on scientific evidence about such blooms?

Some nutrients and other types of particles can be taken into a cell when the cell's plasma membrane encloses the particles and pinches off, forming a free-floating vesicle inside the cell. A lysosome containing digestive enzymes then fuses with the vesicle. Which term best classifies the uptake of such particles by the cell? simple diffusion endocytosis exocytosis osmosis

Answers

b.endocytosis. simple diffusion is a passive transport that doesn't require energy just like putting a dye on the litter of water and it moves to higher gradient into lower gardient .facilitated diffusion is a type of active transport w/ a barrier in it it requires energy to some biochemical through to pass it is kinda like osmosis but in osmosis it doesnt need energy to pass through it only acts as barrier it just like diffusion in diffusion it has no membrane.it acts the same principle from higher gradient to lower.

The Answer is b:

Endocytosis

Which type of muscle is used primarily for voluntary actions?a. skeletal
b. smooth
c. cardiac
d. both
b. and
c.

Answers

The skeletal muscle is used, so A.

Many differences in gene sequences between species, and also among individuals within a species, consist of single nucleotide polymorphisms. Choose the statement that best explains why these types of differences are among the most common DNA changes observed?

Answers

Answer:

A single nucleotide polymorphism (SNP) is the most common gene variation found among people. A SNP represents a change in a single DNA block, called a nuecleotide, being able, for example, to replace a nucleotide cytosine (C), with a nucleotide thymine (T), guanine (G) or adenine (A) in the genome. They represent the 90% of all the human gene variations.

Explanation:

What was signiﬁcant about the fossils Darwin found?

Answers

finding evidence such as Giant Sloths, breeds of horses, and hippos in environments which no longer had those existing animals was proof that survival of the fittest was important in climate changing locations.

The fossils discovered by Charles Darwin were effective when studied for evolution. These significantly proved the concept of survival of the fittest.

The phrase "survival of the fittest" was coined from Charles Darwin's evolutionary theory. He described how to describe the entire mechanism of natural selection and fittest meaning in this theory. Charles Darwin proposed the idea of the "survival of the fittest," which states that organisms that are most adapted to their environment have a higher chance of surviving and reproducing.

Examining reproductive success will reveal whether this biological notion of fitness is successful. The phrase "survival of the fittest" is best understood in Darwinian terms as "survival of the form that in successive generations will leave most copies of itself." The survival of the fittest theory, which stated that organisms better suited to their environment are more effective at survival and reproduction, first gained popularity in Charles Darwin's "On the Origin of Species" during its fifth season.

Therefore, the fossils were a proof of survival of the Fittest.

Learn more about Darwinism here:

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In Texas, a man showed up at a medical facility claiming that he felt drunk when he had not ingested any alcohol. Indeed his blood alcohol measured 0.37, many times the legal limit. Although he was a home brewer, he claimed that this intoxication had been happening often without his drinking any alcohol. Which of these hypotheses and actions might be most useful in diagnosing this problem?

Answers

Answer:

This condition might have arised due to recent round of antibiotics that had killed the bacteria which live in his gut and had allowed a yeast species to grow.

Explanation:

Here, it is given:

Man when showed up at a medical facility felt drunk but he had not ingested any alcohol.
His blood alcohol has measured 0.37 which is many times a legal limit.

Also he claimed that he is home brewer and that intoxication showed is without any consumption of alcohol.

So, this condition can be hypothysed as the man may be on dosage of antibiotics. Whwn human body intakes an amount of antibiotics it kills the bacteria which is present in oue gut and allows an yeast formation to grow there.

So, this might be hypothysed from the given situation.

This condition of his can be changed by putting him on probiotics and by keeping him on a low carbohydrate diet for a week and then recheck for this alcohol consumption test.

Surely, this condition will improve.

Regulation of gene expression using siRNAs is found in: a. prokaryotes only b. eukaryotes only c. prokaryotes and eukaryotes

Answers

Regulation of gene expression using siRNAs is found in eukaryotes only.

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