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2 years ago

15 Activation energy is the energy that a system must have before a chemical reaction can occur.?

Biology

1 answer:

Bezzdna [24]2 years ago

8 0

Answer:

true

Explanation:

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true or false? to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thor

faltersainse [42]

The thorax is a very vital and important organ in the human body.

It is a structure that serves as a protective covering for organs in the body such as the lungs, the heart, some vital blood vessels e.t.c

It is false that to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.

When a person breathes in, the chest cavity expands (the volume increases) and the pressure in the thorax decreases.

When a person breathes out, the chest cavity decreases in size, and the pressure in the thorax increases.

Therefore, we can see that the process of breathing in humans, follows the principle of Boyle's Law.

Boyle's law states that as the volume increases there is a decrease in pressure and as the volume decrease there is an increase in pressure.

Therefore, It is false that to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.

To learn more, visit the link below:

brainly.com/question/24359876

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2 years ago

Study this image of space. A cloud of gas and dust. What object is shown in this image? a nebula a red giant a supernova a neutr

zubka84 [21]

Answer: The image to be studied is missing from the question,so I attached it to my answer,please click on the attachment provided to view the image being studied.

The correct answer to the question is option A.

NEBULA

The object shown in the image is known as a nebula.

Explanation: A nebula is found in interstellar space,it has a form of a giant cloud of dust. When some stars goes into dying process,they explode throwing out gas and dust which forms a nebula.(a supernova remnants nebulae).

Some nebulae(singular form of nebula) are also found where new stars are being formed.

Nebula are the basic building blocks of the universe,they are made up 90% hydrogen,10% helium and other heavier elements in trace amounts from which stars and other solar systems are made.

Nebula exist in 5 distinct types namely;

Emission nebulae, Reflection nebulae,Dark nebulae, Planetary Nebulae and supernova remnants Nebulae.

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2 years ago

Examine the following mutation ACGGGCAAACGATTG -> ACGGGCUAACGATTG. The mutation is

allochka39001 [22]

Answer:

what da

Explanation:

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When cellular respiration occurs within a cell, carbon dioxide is formed as a waste product. The carbon dioxide is transported o

Makovka662 [10]

The blood's acidity would increase and become toxic

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2 years ago

All the chromosomes in a diploid cell are paired. True or False

MissTica

True A diploid is a cell that contains two haploid sets of chromosomes

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2 years ago