BIOLOGY HIGH SCHOOL

Why do doctors recommend that people get a flu shot each new flu season?The flu virus becomes immune to the vaccine
The vaccine wears out over time?
The flu virus changes every year <----?
The body eliminates the vaccine

Answers

Answer 1
Answer: The doctors recommend that people get a flu shot each new flu season because the flu virus changes each year. The correct option among all the options that are given in the question is the third option. There are three kinds of virus vaccines and the virus vaccines changes each year depending on the type of flu.
Answer 2
Answer:

Answer:

The correct answer would be the third option.

Vaccination refers to the administration of weekend or attenuated microorganism or antigen in the body. It helps in developing adaptive immunity in the body.

Thus, vaccine neither wears out with time nor body eliminates the vaccine.

However, the flu virus changes every year due to the short life cycle. Consequently, the memory B cells cannot recognize changed virus due to which the body loses its immunity against the virus.

This is why doctors recommend that people should get flu shot each new flu season.

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Which was the first cell viewed by the light microscope?

Answers

Answer:

The correct answer will be- the bark of an oak tree by Antonie Van Leeuwenhoek

Explanation:

The development of light microscopy began before the 18th century where a scientist named Antonie Van Leeuwenhoek observed the first living cells of the organisms.

Although the first cell was observed by the Robert Hooke when he observed the dead cells of the bark of a tree bu the light microscope designed by the Leeuwenhoek helped him to observe the living cells from the pond life and he also observed the bark of an oak tree.

Thus, the bark of an oak tree by Antonie Van Leeuwenhoek is considered the first cell.
Oak Bark was the first cell viewed by the light microscope

Ecosystems are in danger from all of the following except __________.a. increased thermal pollution
b. decreased eutrophication
c. increased air pollution
d. oil spills

Answers

b. decreased eutrophication

The greatest threat to any life form and the biosphere of the earth is pollution. Pollution is the contamination and deleterious effects of various biogeochemical changes that is caused by mostly man-made processes. This can be exhibited through land, air or water.  

Answer:

it is B

Explanation:

I just took the test in edge

BRAINLIEST TO FIRST PERSON + 100 POINTS!! in this diagram of the cell membrane, how are the phospholipids arranged? Use the terms: hydrophilic, & hydrophobic in your explanation.

Answers

They are arranged in such a manner that hydrophobic cells remain inside and hydrophilic cells remain outside

This is because of their meanings

  • hydrophobic:-Fear of water
  • Hydrophilic :-Love for water

So to attract water they are arranged this way

A patient with osteoporosis (reduced bone mass) may have a history of health issues. One issue could be

Answers

I suppose that this information will help you.

Osteoporosis - a chronic, progressive system, metabolic diseases of the skeleton, or a clinical syndrome manifested in other diseases, which is characterized by decrease in bone density, a violation of their microarchitectonics and increased fragility, due to metabolic disorders of bone tissue with a predominance of catabolism of the processes of bone formation, decreased bone strength and increased risk of fractures.This definition refers to osteoporosis diseases of the musculoskeletal system and connective tissue (ICD-10) and completes his term "metabolic or metabolic diseases."
Osteoporosis is a condition wherein the bones become porous or brittle, which is the result from the overall reduction of the quantity of bone tissue. It occurs when the rate of bone reabsorption exceeds the rate of bone formation. The loss of bone mass makes the bones so porous and weakened that they become deformed and prone to fracture. One of the health issues that may be related to the cause of osteoporosis is the inadequate intake of dietary calcium. Individuals with osteoporosis often have insufficient intake of calcium, vitamin D, and vitamin C.

What do two different neutral isotopes of the same element have in common?

Answers

The answer to this question is that two different neutral isotopes ofthe same element will have the same atomic number. This is due to themhaving the same number of protons, and it is these protons whichdetermine the atomic number. However, these istotopes will havedifferent masses due to a difference in the amount of neutrons.

Is the sun a solid, liquid, gas, or plasma? Explain in terms of kinetic energy of the particles.

Answers

Answer:

PLASMA IS CORRECT

Explanation:

The sun, just like all other stars is made up of a state of matter that is a lot more common than solids, liquids or gasses. It is known as Plasma. Plasma can be created by heating a gas or subjecting it to a strong electromagnetic field, applied with a laser or microwave generator at temperatures above 5000 °C.
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