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son4ous [18]
3 years ago
14

According to Darwin, existing life forms resulted from the modification of pre-existing life forms through the interaction of tw

o factors. What are those two interacting factors?
Biology
1 answer:
LuckyWell [14K]3 years ago
3 0

Answer:

Variation traits and natural selection.

Explanation:

Darwin stated that all species of organisms arise and develop through natural selection and inheritance of variations

In natural selection, survival was for the fittest. In order for an organism to survive . It had to develop new traits to adapt to its environment .

The variation increases its ability to compete, survive and reproduce. Through reproduction the desires trait is passed down making the organism to be considered fit.  

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Phage lambda lytic versus lysogenic phases are controlled by two proteins, Cro which leads to lysis and CII which leads to lysog
Juli2301 [7.4K]

Answer:

The maintainance of the lytic and the lysogenic cycle is done by the Cro and the lambda repressor proteins when the number of bacteria is higher than the number of viruses that is the mode of infectivity or MOI the virus under goes the lytic cycle. This is done by the cleaving of the proteins.

So high nutrient concentration in the gut promotes the growth of the E coli that forms a protease that cleaves the Cro protein and causes the activation of the lysis in the bacteria. So in the high nutrient concentration the bacteria is itself responsible for its lysis.

7 0
2 years ago
An icy, rocky object that has<br> a tail and orbits the Sun
Rus_ich [418]
Must be a comet I believe 
8 0
3 years ago
Read 2 more answers
Why did mendel record the results of so many plant crosses?
Gre4nikov [31]
<span>The reason why Mendel recorded the results of so many plant crosses is that he wanted to demonstrate how certain genetic traits are expressed in different generations. This way he could demonstrate what traits are dominant or recessive in plants.</span>
7 0
3 years ago
Which is an example of a scientist using a physical model to describe the solar system?
Elza [17]

Answer:

D. The scientist uses tennis balls to show the position of the planets and Sun.

Explanation:

In a layman's terms, the solar system is a system consisting of the sun and the planets that orbits around it. These planets are as follows; Mercury, Mars, Earth, Saturn, Venus, Jupiter, Neptune, Uranus etc.

According to this question, using a physical model to represent or describe the solar system means the use of physical objects that can easily be seen or identified. Based on this explanation, the use of tennis balls to show the position of the planets and Sun suits the physical model description of our solar system.

8 0
3 years ago
Which way of organizing DNA best ensure that the information contained on each strand can be accessed
eduard

The information stored in the order of bases is organized into genes: each gene contains information for making a functional product. The genetic information is first copied to another nucleic acid polymer, RNA (ribonucleic acid), preserving the order of the nucleotide bases. Genes that contain instructions for making proteins are converted to messenger RNA (mRNA). Some specialized genes contain instructions for making functional RNA molecules that don’t make proteins. These RNA molecules function by affecting cellular processes directly; for example some of these RNA molecules regulate the expression of mRNA. Other genes produce RNA molecules that are required for protein synthesis, transfer RNA (tRNA), and ribosomal RNA (rRNA).

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3 years ago
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