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marin [14]
3 years ago
5

Nitrogen and phosphorus pollution in the Chesapeake Bay causes phytoplankton numbers to increase, which ultimately leads to the

process called __________. Nitrogen and phosphorus pollution in the Chesapeake Bay causes phytoplankton numbers to increase, which ultimately leads to the process called __________. carbon fixation eutrophication nitrogen fixation photosynthesis
Biology
1 answer:
notka56 [123]3 years ago
4 0

Answer:

Nitrogen and phosphorus pollution which causes the increase in population of phytoplanktons lead to the process called euthrophication.

Explanation:

Eutrophication occurs when there is excessive level of phosphorus and nitrogen in the water that leads to the increase in population of phytoplanktons  or algal blooms. Algal blooms has a negative effect to the quality of water for it creates an environment suited for the growth of bacteria and thereby decreasing the supply of oxygen in water. This leads to death of fishes and aquatic life.

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¿Cómo se llama el proceso de señalización en el que las señales se secretan hacia el torrente sanguíneo y se distribuyen por tod
Ira Lisetskai [31]

Answer:

c.Endocrina

Explanation:

El sistema endocrino consta de órganos que producen sustancias químicas especiales llamadas hormonas.

Las hormonas son mensajeros químicos secretados directamente en el torrente sanguíneo que regulan diversas actividades en el cuerpo.

Por lo tanto, el sistema endocrino secreta sustancias químicas en el torrente sanguíneo.

7 0
3 years ago
The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a h
olya-2409 [2.1K]

Answer:

Explanation:

1)Pfr/Pr

2) Pr

3)far-red

Explanation:

The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a high *Pfr/Pr* ratio. Meanwhile, the leaves of the same tree at the bottom of the canopy are highly shaded during the day and will likely have a higher proportion of the * ( PHYTOCHROME )Pr *;form of phytochrome present due to exposure to a higher proportion of *FAR RED * light.

Plants make use of the phytochrome system to it's adjust growth based on the seasons. Through phytochrome plants is able to respond to the timing and duration of dark and light periods. At dawn, all the phytochrome molecules present in the leaved are converted to the active Pfr form until sunset this is because the sun is unfiltered, and unfiltered sunlight has high percentage of red light, but lower far-red light, with the help of phytochrome system , the plants is able to compare the length of dark periods over several days.

7 0
3 years ago
According to the cladogram below, which of the following organisms had a
horrorfan [7]

Cladograms are graphic representations of the relationship between different taxa according to derivated characters. Option A is correct. Group D has a segmented body and jaws, but no limbs.

<h3>What is a cladogram?</h3>

A Cladogram is a graph drown as a tree, which is based on cladistic analysis. It represents the common ancestral relationships and the emergence of different characters among the involved groups.

  • The tree-type graph is a ramified diagram that represents the relationship between the involved taxa.

  • The cladistic analysis follows the maximum parsimony criterium. Explains the character state from the point of view of the fewest changes through history.

Explains evolution with the minimal amount of evolutive changes.

It recognizes the monophyletic groups as natural groups. These groups are the clades, and their classification -sequencing- represents their phylogeny.

  • The sequencing term refers to lists of groups according to their relation. One group is the brother-group of the following one.

So the cladogram represents the relationship between groups according to a derived character.

The derivated character is any trait that a group passes to its descendants.

Through evolution, the characters change, and new changes are added. When referring to a derivate character, we mean that all the subsequent species in the cladogram carry the trait.

In the provided cladogram, segmentes bodies, jaws, limbs and other traits are derivated characters.

<u>Group D</u> has a segmented body and jaws, but does not express limbs.

This last trait emerged later in history and is expressed by groups E, F and G.

Option A is correct. Group D.

You can elarn more about cladograms at

brainly.com/question/27405768

brainly.com/question/11912782

brainly.com/question/12275760

#SPJ1  

5 0
3 years ago
How does the height of the tropopause change from day to night?
Luden [163]
While the surface temperatures can vary quite a bit, changes in temperature at the tropopause levels change much slower and are tied more to the time of year.<span>
Hope this helped :)

</span>
8 0
3 years ago
List at least 2 advantages and 2 disadvantages of selective breeding.
Vinvika [58]

Answer:

The advantages of selective breeding can include improved quality and higher ... breeding are positive for humans but an awareness of the disadvantages can help

Explanation:

6 0
3 years ago
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