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Marizza181 [45]
3 years ago
13

Which is a controlled variable in this experiment?

Biology
1 answer:
ad-work [718]3 years ago
8 0
The answer is A. number of pots
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Which statement is true of natural populations?
bulgar [2K]

Answer:

Population is a collection of individuals of a species living in a defined area

Explanation:

Population:This is a collection of individuals of the same species occupying the same space and able to interbreed freely with one another when individuals of different sexes are brought together.

A species of animals may comprise a single cohesive population or may contain many geographical distinct populations.

Example:A population of Agama lizards in a Campus located in China.The whole human race, Homo sapiens comprising the black, Mongolian,red and white is a population.A population of <u>Cercopithe</u><u>c</u><u>us</u> <u>erythrogaster</u><u> </u>(Monkeys).

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3 years ago
Stem cells may prove useful in the treatment of Type 1 diabetes because
timama [110]
Because they can be differentiated to form insulin-producing cells
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3 years ago
19. Explain the following observation made by Gregory Mendel in his experiments, A cross between a
Elis [28]

Answer:

The correct answer is - can be explained by the law of dominance.

Explanation:

In this experiment of Gregory John Mendel where he made a cross between a purebred tall plant and a purebred dwarf plant and in the first generation all the offspring were tall.

It can be explained by that every offspring get one allele from both parents and in purebred both alleles are either dominant or recessive and both parent plant gives one allele which makes a heterozygous condition in which the dominant allele masks the recessive allele and offspring express phenotype of the dominant parent.

4 0
3 years ago
Amino acids build<br><br> A. proteins<br><br> B. monomers<br><br> C. nucleic acids
GenaCL600 [577]

Answer:

A. proteins

Explanation:

Amino acids builds up the proteins.

6 0
2 years ago
why is it a good idea for a bacterial cell to be abel to use glucose first as an energy source then switch to lactose
olchik [2.2K]

Answer:

Due to less steps and requires less energy.

Explanation:

The bacterial cell is able to use glucose first as an energy source then switch to lactose because glucose requires less steps and less amount of energy for the break down as compared to lactose. If lactose is the only sugar available to the bacterial cells, then bacterial cells will use it as energy source for the production of energy. In order to use lactose, the bacteria must express the lac operon genes, which encode the main enzymes for lactose uptake and metabolism.

8 0
2 years ago
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