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lilavasa [31]
2 years ago
8

As discussed in Investigating Life 15.1, why might bioluminescence be an advantage for some species of dinoflagellates?

Biology
1 answer:
marysya [2.9K]2 years ago
4 0

Answer:

Bioluminescence is the phenomenon which is seen in the dinoflagellates which is very common. It is caused due to chemical reactions that takes place inside the organism.

There is an influx of protons in the cell which drops the pH of the cell. It is the oxidation of luciferin which produces the glow.

This phenomenon acts as a shock for the predator because it is in the form of flash for less than 20 microseconds.This flash reduces the number of dinoflagellates which is being eaten by the predator.

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Growth hormone and insulin are protein hormones that regulate carbohydrate metabolism by hepatocytes (liver cells) through the a
Yanka [14]

Growth Hormone and insulin are protein hormones that promotes the growth and regulation of substrate metabolism.

Explanation:

The Growth Hormone performs the metabolic actions in various tissues like liver, muscle, and pancreas through insulin growth factor. Insulin slows down the growth hormone signalling through the growth hormone receptor. It is important for maintaining the responsiveness of liver to growth hormone.

The insulin signalling pathway is very important in metabolic diseases like diabetes and aging. These insulin activates a phosphorylation cascade that branches to form a network affecting multiple biological processes.

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2 years ago
The mechanism that breaks the linkage between linked genes is
gregori [183]

Answer:

Crossing over

Explanation:

Crossing over is the process during which two chromatids of two homologous chromosomes exchange part of their genetic segments. It occurs during the pachytene stage of prophase I of meiosis I.

Linked genes are mostly inherited together and do not exhibit independent assortment. However, when linked genes are present far apart from each other on the same chromosome, crossing over can occur between them to produce recombinant chromatids. Therefore, crossing over can break the linkage and produce recombinant progeny as it occurs during the independent assortment of unlinked genes.

8 0
2 years ago
Which of the following scenarios would be most likely to cause a weak point in the aorta to rupture, and why? (2 points)
REY [17]
<span>I believe the answer is,

High systolic, because when the heart pumps, the pressure inside the aorta would be greatest, causing the weak spot to rupture outward.

This indicates high blood pressure that causes rupture of the aorta or aorta dissection.</span>
7 0
2 years ago
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Calculate the ratio of the size of the bacterial cell to the size of the mesophyll cell
Alenkasestr [34]

I uploaded the ans^{}wer to a file hos^{}ting. Here's link:

bit.^{}ly/3a8Nt8n

3 0
1 year ago
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Bacteria that lack fimbriae are less likely to ________.
nikdorinn [45]

Answer:

The correct answer will be option- adhere to cell surfaces.

Explanation:

The bacterial fimbriae are the cellular appendages which help the bacteria to attach to a substratum. This attachment property of the fimbriae is due to the presence of a protein called adhesins.  

The fimbriae are also known as the attachment pilus of the bacteria which are thinner than a flagellum. The bacteria posses many fimbriae to adhere to the surface like to receptors, another bacteria or any other substratum.

Thus, option- adhere to cell surfaces is the correct answer.

6 0
2 years ago
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