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3 years ago

How does hemoglobin act as a buffer?

1 answer:

4 0

It has the ability to bind itself to small amounts of acid in the blood, which helps with removing that acid before the blood’s pH changes

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How many amino acids are affected by frameshift mutation?

puteri [66]

A reading frame consists of groups of 3 bases that each code for one amino acid<span>. A frameshift mutation shifts the grouping of these bases and changes the code for amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift mutations.

Hope this helps.</span>

4 0

4 years ago

PLEASE HELP, ILL GIVE YOU A BRAINLY OR WHATEVER ITS CALLED!!! Why would two parents with dominant traits be able to pass down re

marusya05 [52]

Answer:

because the traits are not dominants it in the name negus

Explanation:

7 0

3 years ago

What is affected by the electrical signal sent by the fourth structure of the reflex arc?(This will be the fifth structure in th

Stells [14]

Answer:

The effector organ is affected by the fourth structure of the reflex arc.

Explanation:

When talking about the reflex arc, we refer to the sequence of events that occur for the body to react to an external stimulus.

In general terms, the peripheric nervous system receives information from a stimulus coming from the external environment. This information is sent to the central nervous system, where it is processed. From the CNS, another signal is sent as a response to the stimulus. This mechanism is known as the reflex arc.

Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.

There are three types of neurons involved in the mechanism:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Action:

Ascending branch

The stimulus reaches the body and is received by the specialized sensory <u>receptors</u>. Information is received by these receptors and converted from stimuli energy (temperature, pressure, light, etc.) to action potential energy. <u>Afferent neurons</u>, placed in the dermis and epidermis, receive information from receptors, react and send the information to the central nervous system as nerve impulses.

Descending branch

Once the information reaches the central nervous system, it is processed by the<u> interneurons</u> that analyze it before sending a response. Interneurons manage many sensorial signals, evaluate and compare them, and send a motor response.

<u>Efferent neurons</u> receive information from the interneurons and are stimulated to carry these new signals from the central nervous system to the cells of the <u>effector organs</u>. The effector organ can be a muscle or a gland.

Finally, the target tissue responds to the stimulus as a contraction, if it is a muscle, or as hormones release if it is a gland.

8 0

3 years ago

Which features are unique to insects as compared to birds?

N76 [4]

Answer:

B, exoskeleton and antennae

Explanation:

I took vet prep, we learned about this. The bilateral symmetry is when you take two half's of an organism and each side looks the same. Both are like that with a bird and an insect is the answer is B.

5 0

3 years ago

This is for Fossil Fuels.

Sedaia [141]

Answer:

<h2>Question no 4 answer</h2>

Fossil fuels will still provide 60% of energy in 2040, compared to 85% today, but the pattern of use will change, away from coal and towards gas, and increasingly concentrated in industry. Fossil fuel prices would be lower in a 2˚C scenario, with less need to mobilise high-cost reserves to meet demands.

<h2>Question no 3 answer</h2>

Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions

<h2>Question no 2 answer</h2>

The premise of this Viewpoint article is that the sustainability of the electricity supply is very often addressed in narrow frames of reference, which sets up incremental decision-making. To more fairly compare the economic, social, and environmental aspects of renewables, such as photovoltaics, to fossil fuels, a broader view is required which needs to take into account the impacts of the fossil fuel supply chain.

<h2>Question no 1 answer</h2>

These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.

<h2>plz mark me as brainliest</h2>

7 0

3 years ago