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mote1985 [20]
2 years ago
12

Mutation is an important mechanism for evolutionary change. Which type of mutations contribute to evolution?

Biology
1 answer:
Aneli [31]2 years ago
7 0
<span>Both somatic and germinal mutations are contributors of evolution. Somatic mutations occur within tissues of individuals that give the said individual differing traits and characteristics. Germinal mutations occur in reproductive cells that can be passed on to offspring, altering their traits and characteristics.</span>
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Which type of joint is freely moveable?
Lady bird [3.3K]

Answer:

b. Diarthrotic

Explanation: is freely moveable, correct

6 0
2 years ago
Should you see signs of microbial growth in a sterile medium if you allow it to incubate for several days
frozen [14]

No, even after several days of incubation, you shouldn't detect any symptoms of microbial growth in a sterile medium.

<h3>What is the microbial growth in the sterile medium?</h3>

The deliberate introduction of germs into a sterile growing medium is known as immunization. When there are no living creatures present, a substance is sterile; undesirable bacteria are said to be contaminated. The use of aseptic procedures helps keep growing media from being contaminated. Reduce the amount of time that cultures and growth media are exposed to the outside world. Clean the work area both before and after each use. Avoid breathing or touching the stock cultures or sterile culture media. Before used, loops, needles, pipes, and other items should be sanitized. The tube caps should be held in your hand while inoculating and not placed on the table while using tubes.

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5 0
1 year ago
Select the correct statement about the special fetal blood vessels.
maks197457 [2]

The question is incomplete. The complete question is:

Question: Select the correct statement about the special fetal blood vessels.

A The umbilical vein becomes the ligamentum teres.

B The distal parts of the umbilical arteries form the superior vesical arteries.

C The hepatic portal vein forms from the umbilical artery.

D The fossa ovalis becomes the f oramen ovale.

Answer:

C) The umbilical vein becomes the ligamentum teres.

Explanation:

After birth, many vascular changes occur in the newborn child as the pulmonary, renal and digestive systems start functioning. As the umbilical cord is tied off and severed, the blood does not flow through the umbilical arteries. The umbilical vein in the child collapses but remains as the ligamentum teres. Ligamentum teres is a round ligament and serves to attach the umbilicus to the liver. It is present in the free border of the falciform ligament of the liver.

6 0
2 years ago
What makes mitochondrial DNA useful as a molecular clock?
Hoochie [10]

The correct answer is D

As compared to nuclear DNA, the mtDNA (mitochondrial DNA) experiences very less mutations. Due to this slow mutation rates, it does not change much over the time. It makes it a good candidate for studying the evolutionary relationship between the species.

In addition, it is mainly inherited from mother’s cytoplasm which also allows the scientists to trace back the maternal ancestral lineage.

7 0
2 years ago
Read 2 more answers
What elements are in the most common substance in the human body
Doss [256]
In order from Greatest to least is Oxygen, Carbon, Hydrogen, Nitrogen

8 0
3 years ago
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