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Butoxors [25]
3 years ago
5

Write an esaay on origin of species​

Biology
1 answer:
LenKa [72]3 years ago
7 0
Do you have the options?
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c-Met is an oncogene that contributes to the development of certain cancers by triggering cell division and tumor growth. In a 2
lisabon 2012 [21]

Answer:

G1 phase cell cycle arrest and apoptosis

Explanation:

According to Yan and colleagues 2009 article, cells that were transfected with microRNA-1/206 showed cell cycle arrest at the G1 phase and showed an increase in apoptosis (programmed cell death) which is important for synthesis of mRNA and protein. These processes have a direct effect on cell proliferation by decreasing it.

3 0
2 years ago
The divisions of the nervous system that have antagonistic actions, or opposing actions are A) motor and sensory. B) sympathetic
Effectus [21]

Answer:

B) sympathetic and parasympathetic

Explanation:

e autonomic nervous system also called the vegetative nervous system is part of the peripheral nervous system which inervates  smooth muscle and glands. Thus, it directly affects the function of internal organs and  regulates  functions such as the heart rate, digestion, respiratory rate,  urination etc. This nervous system control is  unconscious.

The autonomic nervous system is divided into: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.

Parasympathetic nervous system works when organism is at rest so it is known as system responsible for "rest and digest functions". On the other hand, sympathetic nervous system works at active and stressful situations and it is known as "fight and flight" system.

7 0
3 years ago
What is a distinction that can be drawn between macroevolution and microevolution?
nikitadnepr [17]
<span>Microevolution refers to changes in the genetic pool of a species population. The changes in the genes (probably gene and allele frequencies) are observed over short time periods hence are small changes. This is in comparison to macroevolution that observes huge changes over longer time periods  in the population that warrant that the new populations is considered to be a new species</span>
8 0
3 years ago
Relate cause and effect how does crossing-over increase variation in genes?
shtirl [24]
<span>The zygote will have the complete or diploid number of chromosomes, which is 46. The two ways wherein meiosis increases genetic diversity in a species are crossing over and independent assortment of homologous chromosomes. </span>
6 0
2 years ago
What are the differece between facts theory and hypothesis in scientific ex'p​
meriva

Answer:

Theory, and Law In Science.

Explanation:

for a phenomenon made as a starting point for further investigation.

6 0
2 years ago
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