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julia-pushkina [17]
3 years ago
9

Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in _____.

Biology
1 answer:
hoa [83]3 years ago
3 0

Answer:

mutations to homologous genetic loci

Explanation:

Phylogenetic tree, which is a diagrammatic representation of evolutionary relationship among organisms, can be constructed from evidence from molecular systematic with regard to the similarities in the mutations to homologous genes.

Homologous genes are genes that are inherited by two species from a common ancestor having similar DNA sequence. An example of homologous gene is Orthologous gene, which is said to have be brought about by speciation.

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7. The function of the human excretory system is to
boyakko [2]

Answer:

B

Explanation:

It removes other waste from our body and keeps our blood clean

8 0
3 years ago
Would you say that there is a great deal of diversity among the species living here?
bonufazy [111]
Our planet has so many different ecosystems in which species live in. Whether it is the rainforest or a desert region, it seems that almost any place on earth can be one in which species have learned to adapt to living there. In short, yes there is great diversity on this planet. 
8 0
3 years ago
Read 2 more answers
Prostaglandins: A. stimulate smooth muscle contraction. B. have four-membered rings and are derived from arachidonic acid. C. ar
nevsk [136]

Answer:

The correct answer is option A, that is, stimulate smooth muscle contraction.

Explanation:

A group of lipids and a hormone that plays an essential role in monitoring the process of the formation of blood clots, stimulation of labor, the flow of blood and inflammation is known as prostaglandins. The hormone prostaglandin takes part in various kinds of body functions like the relaxation and contraction of the smooth muscles at the time of childbirth, monitoring blood pressure, dilation and constriction of blood vessels, and produce inflammation at the site of infection or tissue damage.  

Prostaglandins possess five-membered rings and are obtained from the fatty acid, arachidonic acid. At the time of blood vessel injury, thromboxane, that is, a form of prostaglandin enhances the process of blood clot formation so that the injury site gets heal quickly.  

4 0
3 years ago
How many neutrons does element's x have if it's atomic number is 52 and it's mass number is 153?
Over [174]
Answer: 101 neutrons

An element's atomic number is the number of protons in its nucleus. X has 52 protons. The mass number is simply the number of protons AND neutrons in the nucleus. Since 52 is given, it's correct to assume that the remainder consists of neutrons. 153-52 will give you the number of neutrons.

Hope this helps! :)
8 0
3 years ago
Can someone please answer these 1-5 and IV
Novosadov [1.4K]
Cell theory:
•All cells come from pre-existing cells
•All living orginisms are made up of 1 or more cells
•The cell is the basic unit of life
Cell theory development:
•Leeuwenhoek
•Hooke
•Schleiden
•Virchow
•Schwann
I believe these are the correct answers
4 0
3 years ago
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