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kodGreya [7K]
3 years ago
7

Help pls, just need this part on the top

Biology
2 answers:
True [87]3 years ago
8 0

Answer:

Concentration Gradient

Explanation:

This means that it will move from a region where it's in lower conc to a region of higher conc

tatiyna3 years ago
3 0
Concentration gradient
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Freckles are a dominant trait in humans. Both of these girls have lots of freckles. Their mother has freckles but their father d
ycow [4]
So, lets say that the letter representing freckles is F for dominant or f for recessive
Clearly, the mother is F, while the father is f. which most likely gives the girls the genotype of Ff with one dominant freckle allele each which means they display the trait.
4 0
3 years ago
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I need some help with this question
AleksAgata [21]

Answer:

the food chain is more stable and lasting

Explanation:

where there is an ecosystem with lots of plants and animals you get a stable food chain. where there are fewer plants and animals most animals have to compete with other animals for food.

8 0
3 years ago
Complete the table of the following element.
Lorico [155]
It has11 protons and neutrons atomic number=11 mass=22

8 0
3 years ago
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True or false?
Vinil7 [7]

Answer:

Explanation:

1. Over time more and more molecules of DCPIP would be decreased by electrons taken from plastoquinone (Pq). This statement is true in the sense that DCPIP is an artificial electronic acceptor which is decreased by taking electrons from plastoquinone.

2.) Water splitting by Photosystem II would occur at higher levels than if the drug were administered without DCPIP. This statement is true.

3.)Events in Photosystem I would occur just as they would in the absence of drug and DCPIP. This statement is false because the drug obstructs the electron transport from plastoquinone to cytochrome B. So the events are abnormal because no protein transfer is involved in this mechanism.

5 0
3 years ago
A purple-flowered pea plant is crossed with a white-flowered pea plant. All the F1 plants produced purple flowers. When the F1 p
Korolek [52]

Answer:

Parentals: PP (purple) and pp (white)

F1: Pp (purple)

Explanation:

When the two parental plants of differing phenotypes (purple or white flowers) cross, the F1 is 100% purple. This result suggests that the parentals were true breeding (homozygous), with purple flowers being the dominant allele.

When the F1 self pollinates, the F2 shows proportions very similar to 3/4 purple and 1/4 white (401/532 ≅ 3/4 and 131/532 ≅ 1/4). The 3:1 phenotypic ratio is typical of the offspring resulting from a cross between two heterozygous individuals.

The results make sense if the genotypes of the different generations are:

Parentals: PP (purple) X pp (white)

F1:                          Pp (purple)

F2:  1/4 PP, 2/4 Pp, 1/4 pp

7 0
3 years ago
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