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julsineya [31]
3 years ago
12

Which of the following occurs when the heart forcefully contracts?

Biology
2 answers:
meriva3 years ago
8 0
<h3><u>Answer;</u></h3>

A. Increased blood pressure

<h3><u>Explanation;</u></h3>
  • <em><u>When the heart forcefully contracts, the blood is pushed into the blood vessels through the aorta from the left ventricle which in turn increases the blood pressure in the blood vessels. </u></em>
  • The increase in pressure in the blood vessels is called the systolic blood pressure which is as a result of contraction of the heart.
  • The blood pressure in the blood vessels decreases when the heart relaxes and the pressure is now referred to as diastolic pressure.
marusya05 [52]3 years ago
4 0
I think the answer would be A. Increased blood pressure.

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What percentage of caterpillars original energy is available to the hawk?
zheka24 [161]

Answer:

The percentage of caterpillars original energy available to the hawk is  = 0.6%.

Explanation:

the answer above is given by; 24 kcal/4000 kcal x 100

Caterpillars are the larval stage of members of the order Lepidoptera. As with most common names, the application of the word is arbitrary, since the larvae of sawflies are commonly called caterpillars as well. Both lepidopteran and symphytan larvae have eruciform body shapes.

Hawks are a group of medium-sized diurnal birds of prey of the family Accipitridae. Hawks are widely distributed and vary greatly in size. The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfamily are mainly woodland birds with long tails and high visual acuity.

7 0
3 years ago
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Studies peg the number of proteins in the human body to be around 10,000 to several billions. This diversity is a result of the
Harrizon [31]

Answer:

The correct answer is - option B.

Explanation:

The diversity of numbers of proteins in the human body is due to the differences in the structure of proteins. This change or difference in the structure of proteins is mainly affected by the sequence of amino acids.

The order of sequence of amino acid segment or residue in the peptide chain of the protein affects the structure of the particular protein which also leads to change in the secondary and tertiary structure of the protein.

Thus, the correct answer is - option B.

8 0
3 years ago
Hey everyone I will be choosing brainliest for the best answer and pls no scamming.
vladimir1956 [14]

Answer:

There are four steps in solving a stoichiometry problem:

Write the balanced chemical equation.

Convert the units of the given substance (A) to moles.

Use the mole ratio to calculate the moles of wanted substance (B).

Convert moles of the wanted substance to the desired units.

Explanation:

(https://socratic.org/questions/how-to-solve-the-problems-of-stiohiomerty-what-is-the-formula-of-stiohiomerty) This site will give you all the info you need on how to solve it! Gives examples too!

4 0
3 years ago
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why does someone experiencing anaphylaxis need to receive medicine through injection instead of swallowing a pill
Karolina [17]
It goes into the bloodstream much faster than a pill would. Anaphylaxis can be deadly and the faster medicine is carried throughout the body, the less likely damage will ensue.
6 0
3 years ago
3. Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these are catalase positive, yet t
Hoochie [10]

Answer: Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these bacteria are catalase positive,

Explanation: that’s it

5 0
3 years ago
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