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stepladder [879]
3 years ago
13

Charles was walking through shallow water when he cut his foot on a shell explain, in terms of diffusion, why the cut looked muc

h more serious in the water than if he had cut his foot on sand
Biology
1 answer:
alex41 [277]3 years ago
4 0

Answer:

I'm guessing because there is a more likely change that bacteria will infect the wound because of the bacteria in the water

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2.Which of the following represents a genetic cross between 2 individuals that are each heterozygous for both traits?
wariber [46]

Answer:

A. AaBb x AaBb

Explanation:

The term heterozygous refers to the presence of two different alleles of same gene in an organism. The one allele can be of wild type (original type) and one can be mutated or newly formed.

In the question, two traits are represented by two letters, A and B and alleles as A and a and B and b, respectively. We are asked about a cross involving two traits and two individuals in such a way that both are heterozygous.

If we look at option A, AaBb x AaBb,

we see that one trait A and the other trait B is in heterozygous form (Aa and Bb) in both individuals.

If we look at option B. AABB x AABB

we see that one trait A and the other trait B is in homozygous form form (AA and BB) in both individuals. Homozygous means when the alleles are same for each trait in an individual.

If we look at option C,Aa x Bb

There are not two traits, one trait of one individual and other trait of other individual is being crossed that is not possible.

If we look at option D. AAaa x BBbb

Again, the individuals are homozygous for two traits.


Therefore, A is best option.


Hope it helps!

7 0
3 years ago
When most liquids are frozen, the molecules get closer together. In water, however, hydrogen bonds cause individual water molecu
Andre45 [30]
When water freezes(ice) it expands slightly
think ice cube tray, and why the amount of ice you get is more than the amount of water you put in<span />
5 0
3 years ago
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Where is dna located in a cell that is not going through cell division?
castortr0y [4]

Answer:

Actually, cell division is the mechanism by which DNA is passed from one generation of cells to the next and ultimately, from parent organisms to their offspring. During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.

Explanation:

4 0
3 years ago
Does high tide happen at full moon?
ki77a [65]

Answer:

Yes, high and low tide are affected by the moon.

4 0
3 years ago
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Which statement about the cell membrane is true?
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Your answer would be the third choice, C.
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3 years ago
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