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AZT works by selectively inhibiting HIV's reverse transcriptase, the enzyme that the virus uses to make a DNA copy of its RNA. Reverse transcription is necessary for production of HIV's double-stranded DNA, which would be subsequently integrated into the genetic material of the infected cell to produce its proteins. All reverse transcriptase inhibitors are analogues of the naturally occurring deoxynucleotides needed to synthesize the viral DNA and they compete with the natural deoxynucleotides for incorporation into the growing viral DNA chain.

Answer:

B

Explanation:

Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Transport in xylem requires physical forces such as transpiration pull. Transport of food in phloem requires energy in the form of ATP.

Answer:

It will not survive

Explanation:

mainly due to the fact that it is adapted to its environment and living in the desert will not be ideal since it has such a large amount of fur and there is no food source for the animal

Answer:

Bears, Birds, Plants

Explanation:

Biotic: Living things

Answer:

Explanation:

1 3 6

Answer:

A is the answer

Explanation:

Answer:

D is the answer bc metamorphic rock is when substance are under intense heat and pressure and form a solid rock

Answer:

Lack of sleep.

Explanation:

Lack of sleep/tiredness is really bad for your reaction time.

Answer: really any doctor

Explanation: karyotype tests are done typically during pregnancies, i’m sure a medical facility could do it.

Answer:

The second statement clearly differentiates the pathogens best. Parasites feed on living host while viruses depend on the cells of other organisms to survive and reproduce as they cannot function outside a living host.

Although both rely on other living organisms to survive, parasites feed on the host organism. The correct option is B.

A parasite is an organism that lives on or in the host and obtains its food from or at the expense of the host.

Protozoa, helminths, and ectoparasites are the three main types of parasites that can cause disease in humans.

They frequently go unnoticed because they have few symptoms. However, these infections frequently result in serious illnesses such as seizures, blindness, heart failure, and even death.

A parasitic relationship takes place when one lifeform, the parasite, feeds on another organism, the host, causing harm and possibly death.

The parasite lives on or in the host's body. Tapeworms, fleas, as well as barnacles are examples of parasites.

Thus, the correct option is B.

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Answer:

Explanation:

The shape of the protein is really important for the function. Disulfide bonds also called disulfide bridges are important for stabilizing the protein. If the structure of the protein is damaged (by heat or other factors), then the protein will not be able to perform its function.

Answer:

2:2

Explanation:

2 offspring will be Rr, which is round

2 offspring will be rr, which is wrinked

Therefore, the ratio will be 2:2

Answer:

The population if snakes will decline because there will be competition between snakes and snow owls. The snow owls will eat the mice, but if there's only a small population of mice. Only a few snakes will eat, other snakes will die of starvation. There will be competition between snow owls, hawks and mountain lions, but they have other sources of food, unlike snakes.

Level C contains the least amount of energy. This is because each level gets less and less energy per meal, beacuse energy is released by each organism.

Answer:

Weathering is the breaking down of rock

Explanation:

Pls mark it as brainlest

Answer:

breaking down/ dissolving of rocks & minerals

Explanation:

water, ice, acids, salt, plants, animals and changes in the weather temperature

The Five Kingdom classification system was used until the invention of option A. the microscope.

The living organisms should be divided into five different kingdoms i.e.

These are based on the attributes like the structure of the cell, nutrition mode, reproduction mode, etc,

Based on this, we can say that The Five Kingdom classification system was used until the invention of option A. the microscope.

Correction on the title: What are the five kingdoms Please use bullets to enumerate the kingdoms

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Answer:

1st Activity = Cold Front

2nd= High Pressure with a Cold Front

During anaerobic respiration , cells make energy without Oxygen

the energy obtained during anaerobic respiration is 2 ATP

i think answer is D animal in the rain forest

All animals in the rainforest have the same adaptations. Therefore, option C is correct.

A physical or behavioral characteristic of an animal that enhances its ability to survive in its environment is known as an adaptation.

To put it another way, an adaptation is something a person does or has on them that makes it easier for them to locate food, water, mates, and shelter. The structural adaptations made by some plants to survive in hot, dry deserts are one illustration of this.

Animals can defend themselves against predators and extreme weather by adapting. Numerous birds may conceal themselves under long grass, while weeds, insects, and other creatures can alter their colour to blend in. Predators find it challenging to locate them in search of food as a result. Hence, option C is correct.

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Answer:

50 percent is the anwer.

Answer:

The correct answer would be A)This organelle is composed of protein and RNA and is used to make proteins for the cell. A ribosome is a vesicular structure present in both prokaryotic and eukaryotic cells. ... They are the site of translation in both prokaryotic and eukaryotic cells.

Explanation:

➥ Even, when an organism is asleep, various biological processes keep on occurring in its body which requires energy.

➥ During photosynthesis‚ “Solar energy is converted into chemical energy”.

➥ “Chlorophyll” is a green coloured pigment found in plants that helps in absorbing sunlight used in photosynthesis.

➥ Several factors which affect the rate of photosynthesis:

➥ “Photolysis” is the process by which water is split into oxygen, which is released into the atmosphere, and hydrogen.

Answer:

True,Every chemical reaction obeys the law of conservation of mass.

Answer:

There are 5 doses to the tetanus shot for a child. That is what is reccommended.

Explanation:

Answer:

evolution is not part of modern biological science

Answer:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Answer:

Final pressure, P2 = 362.26 kPa

Explanation:

Given the following data;

Initial volume = 32.5 Liters

Initial pressure = 45.7 kPa

Final volume = 4.1 Liters

To find the final pressure, we would use Boyle's law;

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

[tex] PV = K[/tex]

[tex] P_{1}V_{1} = P_{2}V_{2} [/tex]

Substituting into the equation, we have;

[tex] 45.7 * 32.5 = P_{2} * 4.1 [/tex]

[tex] 1485.25 = 4.1P_{2} [/tex]

[tex] P_{2} = \frac {1485.25}{4.1}[/tex]

[tex] P_{2} = 362.26 [/tex]

Final pressure, P2 = 362.26 kPa

Answer:

answer is A good luck on you're quiz

Answer:

D. The half-life of Material 1 is 5 years more than the half-life of Material 2.

Explanation:

As you can see in the graphs for material 1 to get to 50% it takes 30 years. for material 2 it takes 25 years to get to 50%. Therefor the halflife of material 1 is 5 years more than material 2

Answer: It is the difference in the electrical potential across a membrane

Explanation:

Answer:

because some crops need other animals to grow like with bees and humming bird they are considered predators but they help plants by spreding seeds.

Explanation:

Answer:

false

Explanation: