Answer:
The correct answer is b. must be present in a population before natural selection can act upon the population
Explanation:
Genetic variation can be caused by mutation, recombination between chromosomes during meiosis and by fusion of two genetically different gametes during sexual reproduction.
This genetic variation is necessary for the evolution of any population. Natural selection acts on every individual and it decreases the frequency of those alleles that are not suited for the environment and increase the frequency of those alleles which helps the individual to survive in the changing environment.
Therefore genetic variation must be present in the population before natural selection act on the.
Well all you have to do is read the part you are supposed to put in your own words in, then write it down on paper, then you could paraphrase it here so you wont get plagirized for it:http://paraphrasing-tool.com/
All you have to do is then put the info you just wrote, and then type it in the first box, then click ( im not a robot) so then GO! an then in the box below the GO! button just write that down own your paper.
For part two you just write down three things on what YOU LEARNED from <span>Abraham Lincoln and the civil war from reading the book
For part 3 it is based on your opinion.
I hope this helps this took me a long time to type!
Have a good evening</span>
Answer:
to compare values across a few categories
Explanation:
Answer:
be involved in the rapid uptake of compounds from the cell's environment
Explanation:
Cells in an organisms are defined as the basic building unit of life. It is the most important unit in a living organisms. Cells gives the structure to the bodies and carries the most important functions of the organism.
The size of the cells are important in performing many functions, which includes cellular communications, materials exchange from the surrounding environment, etc. The rapid cellular uptake of the compounds are proportional to the surface area of the cells or its size.
Thus, in the context, two cells having the greater surface area or size are more likely to uptake the compounds from cell's environment.
Answer:
D) dandelion
Explanation:
Plants make their food using a process called photosynthesis, which means “putting together through light.” During photosynthesis, a plant traps energy from sunlight with its leaves. It also takes up water from its roots and carbon dioxide gas from the air.
