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liubo4ka [24]
3 years ago
14

Which of the following human activities can cause eutrophication of lakes?

Biology
1 answer:
sweet-ann [11.9K]3 years ago
3 0
I believe the answer is fossil fuels I hope this helps you out! :)
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In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f
Simora [160]

Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

4 0
3 years ago
SOMEONE PLZ HELP ASP!
marusya05 [52]

Answer:

I thinks is pollution

Explanation:

its the only one that makes sense

4 0
3 years ago
Read 2 more answers
In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place?
zysi [14]

Answer:

Fermentation

Explanation:

To find the correct answer, we will review over the definition of each answer choice.

Photosystem I is A membrane in a plant that produces high levels energy from light

Based on the definition, we can conclude that photosystem 1 is not the correct answer.

ATP Synthase are molecules that create ATP

We know that this answer choice is also not correct.

Glycolysis is the process of breaking down glucose to create energy.

Based on the definition provided we know that this answer choice is also incorrect

Fermentation is the process of lactic acid being formed when there is not enough oxygen present for cellular respiration to take place.

Therefore, fermentation is the correct term we are looking for.

3 0
3 years ago
How many essential amino acids are there
Art [367]

Answer:

Essential amino acids cannot be made by the body. As a result, they must come from food. The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Explanation:hope it helps

5 0
3 years ago
More than half of an infant's caloric intake comes from _____.
SCORPION-xisa [38]

Answer:

Breast Milk

Explanation:

More than half of an infant's caloric intake comes from Breast Milk

4 0
4 years ago
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