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ale4655 [162]
3 years ago
5

Alleles are different versions of:

Biology
1 answer:
eimsori [14]3 years ago
7 0

Answer:

Genes

Explanation:

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After learning about several of the body systems, Jon tells the class that the digestive system and respiratory system have one
Valentin [98]

The correct answer is option D, that is, Jon is correct because the respiratory system removes waste from the body by ridding it of carbon dioxide when we exhale, and the digestive system removes waste from the body in the large intestine where the waste is sent and removed through the rectum.

The respiratory system functions to provide adequate oxygen for the proper functioning of the body and at the same time works to remove the waste products like carbon dioxide via the process of exhalation.  

On the other hand, the function of the digestive system is digestion and absorption. It digests the food components into smaller pieces, and helps in the absorption of nutrients from the food, the leftover undigested food, or waste is excreted out through the rectum. Hence, both respiratory and digestive system exhibits one common function of excretion of waste materials.  


8 0
3 years ago
Why do you think species are endangered? Name some root cause of the problem.
ivann1987 [24]
Global warming from human activity. Mainly the burning of fossil fuels. There are many solutions that are already available. Such as solar, wind, and geothermal energy. The issue is that these solutions also have problems and are expensive. Likely a combination of them and the engineering of ways to safeguard pollutants so they don’t make it into the ecosystem will be the best way that this will improve.
8 0
3 years ago
CAN SOMEONE PLZ HELP
ra1l [238]

Answer:   1 Lysosomes and peroxisomes, Microtubules, Endoplasmic reticulum, Mitochondria

2 The role of the nucleus of a eukaryotic cell is to control the cell. Because it contains most of the cell's DNA, which is encoded with genetic instructions, the nucleus controls which proteins the cell makes.

3 The rough endoplasmic reticulum has ribosomes on its surface. This is what give the RER a "rough" appearance.            The smooth endoplasmic reticulum (SER) does not contain ribosomes. The Smooth ER looks more like tubes. The SER helps in the storage of proteins and lipids.

4 Secretory vesicles contain materials that are to be excreted from the cell, such as wastes or hormones.

Transport vesicles move molecules within the cells.

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8 0
3 years ago
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What are proteins composed of, and what are their main functions in the body
IgorC [24]

Answer:

<u><em>Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body’s tissues and organs. </em></u>

<u><em>Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains.</em></u>

Explanation:

7 0
3 years ago
The actions of the internal intercostals are most important during __________.
Sliva [168]

Answer:

forced expiration

Explanation:

The speed at which air is expelled from the lungs during the middle portion of a forced expiration is very important to the actions of the internal intercostals.

6 0
3 years ago
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