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My name is Ann [436]
2 years ago
5

Under normal circumstances, carbon dioxide is excreted from the body by what structure?

Biology
1 answer:
Sati [7]2 years ago
5 0

Under normal circumstances, carbon dioxide is excreted from the the body by lungs.

Human beings have a pair of lungs that are spongy in nature and located on the sides of the chest. They are surrounded by pleura which is a layer of thin tissue. The cells in the body require oxygen. The primary function of the lungs is to transport oxygen from the air we breathe to the cells of the body and excrete carbon dioxide received in exchange for oxygen from the cells. Alveoli are present within the lung parenchyma where the exchange of gases takes place with the blood capillaries. Carbon dioxide is then exhaled from the lungs.

The lungs also serve as a means for the absorption and excretion of water and other pharmacological agents and also protect the body from unfavorable substances.

To learn more about lungs, click here:

brainly.com/question/4779754

#SPJ4

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If all living things are related then where did all their differences come from?
stiks02 [169]

Answer:

<em>Hox </em>Gene

Explanation:

First, you're question is very vital, there are many ways in classifying along with identifying all living organisms that includes; morphological analysis, molecular systematics (studying the similarities and differences of the genetic data such in the sequences of DNA, RNA, and rRNA ), homology, cladistics, etc. based on phylogenetic tree, which the study of the evolutionary among various species.

But through it said that all living organisms shared one common ancestor. However, what makes them different from one to another is the homeotic genes that called <em>Hox </em>Genes; which specify the fate of a particular segment or region of the body, meaning the number and arrangements of the<em> Hox</em> genes varies considerably among different types of animals.

For instance, Sponges have at least one homologous to<em> Hox</em> genes, also insects have nine or more <em>Hox </em>genes resulting in multiple <em>Hox </em>genes occur in a cluster in which the genes are close to each other along a chromosome. Therefore, increases in the number of<em> Hox</em> genes have been instrumental in the evolution of many animals species with greater complexity in body structure.

Overall, more <em>Hox</em> genes, more complexity in body structure resulting in the differences of their morphological structure.

Hope that answered your question!

7 0
3 years ago
Anyone help me with this question plz
wolverine [178]

Hey again,

The answer you are looking for is B).

Just as proteins consist of long chains of amino acids, DNA and RNA consists of nucleic acid chains called nucleotide's. Nucleotide's are composed of three units: base, sugar (monosaccharide) and phosphate. Bases are found in both DNA and RNA. As seen below, they are adenine, cytosine, guanine, thymine, and uracil.

Hope this helps!!!!!!

Plz mark brainliest!

5 0
3 years ago
1. Describe one way you could keep track of energy use and transfer in a biological system.
ehidna [41]

Answer:

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3 0
3 years ago
The widows peak that is seen in some people is an example of what type of trait?
Ksju [112]

Answer:

A. single-gene

Explanation:

It is controlled by a single gene that has two alleles. The allele for a widow's peak is dominant over the allele for a hairline with no peak.

5 0
2 years ago
What methods help a male grow hair faster and stronger.
pogonyaev
One method is taking vitamins. Another method is eating healthier. 
5 0
3 years ago
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