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Sidana [21]
2 years ago
6

Can someone please help me with this

Biology
1 answer:
alex41 [277]2 years ago
4 0

Answer:

The answers is D option why because when he jumps and goes down with a force and opens parachute so lesser force with his acceleration

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Many studies have indicated that there is some genetic influence on body weight and composition. Researchers have established a
sukhopar [10]

Answer:

A

Explanation:

The thrifty gene hypothesis postulates that due to dietary scarcity during human evolution, people are prone to obesity by storing energy as fat, an ability to take advantage of rare periods of abundance  and this is advantageous during times of food availability. individuals with greater adipose reserves would more likely survive famine. This tendency to store fat could lead to obesity.

FTO is an enzyme that is encoded in humans by FTO gene located on chromosome 16. Increase in this enzyme is associated with the regulation of energy intake but not feeding reward. Also, the set point theory indicates that bodies are meant to stay within a narrow weight range but it is susceptible to chnage overtime.

4 0
3 years ago
New ocean crust is formed at?
umka2103 [35]
It is formed at Divergent boundaries, two tectonic plates diverge from one another. New oceanic crust is being formed by hot molten rock slowly cooling and solidifying. The crust is very thin.
4 0
3 years ago
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The _____ produces secondary phloem and xylem tissue, adding to a tree's girth.
lilavasa [31]
The aswer is b. Vascular Cambium

it is a plant tissue which is located between Xylem and Phloem in the stem and root of a vascular plant and the source that produces Secondary xlem and phloem

Nb : Vascular Cambium does not transport waters , minerals, it only produce Xylem and Phloem which add the tree's girth
7 0
3 years ago
Pepsin is a digestive enzyme. It is made in an inactive form, pepsinogen, which is activated by the acidity of the stomach to se
Paladinen [302]

Answer: Positive feedback loop

Explanation:

Even before the food reaches the stomach (before ingesting it), the glands of the stomach mucosa begin to release its gastric secretion. The main characteristic of this secretion is acidity, as measured by pH (one of the physiological variables).

This acidity is a result of the presence of hydrochloric acid, which is part of the secretion composition. In addition to it, water, pepsinogen (which will give rise to the enzyme pepsin) and the intrinsic factor. The acid has a function of the protection of the entire system by eliminating microorganisms. It is also responsible for the activation of pepsin (which only occurs with acid pH), the enzyme that digests proteins containing the amino acids leucine or phenylalanine or tryptophan or tyrosine.

The concept of Positive feedback loop states that the body tries to increase the value of a variable (acidity, in the case of pepsinogen) when it is below its optimal value (called a point adjustment) and decreases this value when it is above optimal.

5 0
3 years ago
Material to diffuse is the <br> variable.
Zina [86]

Material to diffuse is independent or dependent variable...

7 0
2 years ago
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