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2 years ago

Which factor regulates the opening and closing of stomata in leaves?

2 answers:

6 0

Relative Humidity is considered as the most important factor in regulating the closing and opening of stomata. Since it indirectly controls transpiration and stomata's main function is transpiration.

Hope this helps!

Taya2010 [7]2 years ago

5 0

The best and most correct answer among the choices provided by the question is the second choice "humidity."

Opening and closure of the stomatal pore is mediated by changes in the turgor pressure of the two guard cells. The turgor pressure of guard cells is controlledby movements of large quantities of ions and sugars into and out of the guard cells.

I hope my answer has come to your help. God bless and have a nice day ahead!

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What are some science skills you could use to study fish in an aquarium

Verdich [7]

You could record how much they eat how many times they swim around in a day you could weigh your species of fish.

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2 years ago

Humans have 23 pairs of chromosome in every body cell. Even one extra chromosome causes death or serious disorders. For example,

tamaranim1 [39]

Explanation:

In the majority of cases, the extra copy of chromosome 21 comes from the mother in the egg.

In a small percentage (less than 5%) of cases, the extra copy of chromosome 21 comes from the father through the sperm.

In the remaining cases, the error occurs after fertilization, as the embryo grows.

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1 year ago

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Vilka [71]

Answer:

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Explanation:

The answer is false.

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2 years ago

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bonufazy [111]

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2 years ago

Which of these values would most likely be the heritability of body mass index (BMI) in a developing country with a large gap be

ANTONII [103]

Which of these values would most likely be the heritability of body mass index (BMI) in a developing country with a large gap between nutrition and health care available to the rich and poor?

a. 0.33

b. -0.88

c. 0.99

d. 0.0001

e. 1.3

Answer:

a. 0.33

Explanation:

Body Mass Index is defined as the measure of fat depending on the height and weight of individuals. It is being calculated as: BMI= $\frac{mass_{kg}}{height_{m^2}}$

The most likely heritability of body mass index(BMI) in a developing country with a large gap between nutrition and health care will be 0.33.

These is because in developing countries especially countries experiencing rapid economic growth as illustrated by the annual GDP growth rate are likely to have widely ranging lifestyles due to influences of the burgeoning economy, Therefore, there are greater chances for the rich to have access to the basic requirements and necessities of life whereas the poor are limited with either low or no access to adequate nutrition and health care.

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2 years ago