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olasank [31]
3 years ago
14

A factor that plays an important role in determining how strenuously and when you exercise

Biology
2 answers:
salantis [7]3 years ago
6 0
The weather...........
Readme [11.4K]3 years ago
5 0

Answer:

Your weight will be a factor to consider since the heavier you are the more your muscles will have to work to perform an activity that other find easy.

Another factor to consider is the altitude. When you are closer to sea level it is easier to perform physical activity but when you are in higher altitudes, then your body struggles to breath and oxygenate your muscles and therefore you have to take your muscles to the limit.

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Selective pressures created by environmental factors can lead to success of __________ individuals in a population. A) asexual B
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Selective pressures created by environmental factors can lead to success of <span>mutual individuals.  So it is D</span>
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Which plate boundaries and movements most commonly create earthquakes? Explain how earthquakes can be created by plate tectonics
Bad White [126]
Unique or damaging plate edges cause volcanoes. As the more thick plate subducts, it will dissolve at profundity and the water is driven off, will bring down the liquefying purpose of the overlying mantle wedge, this will make a kind of magma. Volcanic Island Arcs are framed at maritime dangerous plate edges. The hot, light magma, is less thick that the encompassing rock so will ascend to the surface, and will gather underneath the plate that hasn't been subducted. It will then, under expanded weight eject under the ocean. More than thousands of a great many years, it will continue emitting, to shape islands.
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1. The basic types of tissue in the human body are
Nostrana [21]

Answer: The correct answer is-

muscle, nervous, connective, and epithelial.    

Tissue can be described as a group of specialized cells that are clustered together to perform particular function.

There are primarily four main types of tissue, which are present in the human body. These tissues are-

Muscle tissue ( assist in locomotion and provides structural support to body).

epithelial tissue ( covers surface of body surface and forms internal lining in most of the organs),

connective tissue ( such as bones, cartilage, blood) that is abundantly present in the body.

nervous tissue ( helps in the transmission of electrical signals through out body).

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3 years ago
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A) How does HIV bind to a host cell?
Taya2010 [7]

1. The correct answer is: The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane.

Binding and entering the host cell are the first steps of the HIV virus infection. So, these steps play a major role in determining the ability of HIV to degrade the human immune system. Binding of HIV to CD4+ T lymphocytes (express chemokine receptors CCR5 and CXCR4 called co-receptors) triggers the fusion of the viral and host cell membranes, initiating infection (viral core gets into the cytoplasm).

Attachment of the virion can be:

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After the viral capsid enters the cell, single-stranded RNA genome is released from the attached viral proteins and copied it into a complementary DNA (cDNA) molecule thanks to an enzyme called reverse transcriptase. Next step is the integration of the viral DNA into the host cell's genome. This process is done by another viral enzyme called integrase. The integrated DNA  is transcribed into RNA and then translated into proteins that will help the package of new viruse particles.

3. The answer is: false

Reverse transcriptase is an enzyme that catalyzes the formation of DNA from an RNA template. Since the genome of the virus (HIV) is single stranded RNA, reverse transcriptase copies it into a complementary DNA (cDNA) molecule. Thanks to this enzyme, formed cDNA can be integrated into host’s genome. Because of this proprety, antiretroviral drugs used to treat HIV infection work as reverse-transcriptase inhibitors.

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3 years ago
Why are carbon dioxide concentrations expected to increase?
kogti [31]

Answer:

The answer is a.

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