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user100 [1]
3 years ago
15

How many centimeters can air pressure at sea level push a column of mercury up a tube?

Biology
2 answers:
Yanka [14]3 years ago
6 0

Answer: At sea level and at a temperature of 0° Celsius (C), the height of the mercury column is approximately 30 inches, or 76 centimeters. This represents a pressure of approximately 14.7 psia. The 30-inch column is used as a reference standard. Atmospheric pressure does not vary uniformly with altitude.

galina1969 [7]3 years ago
4 0
Since the atmospheric pressure at sea level is 760 millimeters of mercury, the dish of mercury would have to large enough to have enough mercury to allow the mercury to rise 760 millimeters up the tube (or 76cm)
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Vacuoles are <span>large saclike, membrane enclosed structure - store materials like water, salts, protrins, and carbohydrates - like a storage unit</span>
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Determine the results from a cross of a mother who is heterozygous for tongue rolling with a father who is homozygous recessive
grandymaker [24]
In order to determine the results from a father who is homozygous recessive for the tongue rolling trait, T, and a mother who is heterozygous for the trait, a Punett square can be used to determine both the resulting genotype (allele combination) and phenotype (observable characteristics). The results are 50% Tt and 50% tt. Thus, the cross would result to 1:1 ratio of tongue rolling to non-tongue rolling offsprings. 
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3 years ago
C cells of the thyroid gland secrete __________. C cells of the thyroid gland secrete __________. tetraiodothyronine cortisol ca
Leni [432]

C cells of the thyroid gland secrete calcitonin.

<h3>What does C cells of thyroid gland produce?</h3>
  • The thyroid follicle, which is the gland's active component, is encircled by a single layer of epithelial cells, and the lumen is stuffed with colloidal material.
  • It includes parafollicular cells, or C cells, which release calcitonin.
  • The C-cells of the thyroid gland secrete calcitonin, a 32 amino acid hormone.
  • When the concentration of blood calcium has grown over the usual range, the thyroid gland releases the hormone calcitonin, which lowers the level.
  • The parafollicular cells, sometimes referred to as the C cells, of the thyroid gland are the principal producers of this polypeptide hormone, which has 32 amino acids.

Learn more about thyroid gland here:

brainly.com/question/27523862

#SPJ4

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: The C cells of the thyroid gland secrete

a) TSH.

b) parathormone.

c) thyroxine.

d) triiodothyronine.

e) calcitonin

6 0
2 years ago
a sample of human cells is suspended in a nutrient solution overnight. The next dasy, the scientist observes that the cells have
TEA [102]

The question is incomplete as it misses the options which are:

Cancer cells do not exhibit density dependent inhibition

Cancer cells do not require growth factors

Cancer cells do not exhibit anchorage dependence

Cancer cells ignore typical cell cycle checkpoints

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The correct answer will be option- Cancer cells do not exhibit anchorage dependence

Explanation:

A cell becomes tumour forming cell or cancerous cell when the cell undergoes some mutation in the DNA which causes uncontrolled cell division without differentiation.

As a result of the mutation, these cancerous cells show various properties which are present in the normal cells nut absent in cancerous cells like the cancerous cells lack the anchorage dependence.

Anchorage dependence is the property of the cells or the group of cells in which the cells maintain their adherence to the other layer of cells to communicate with each other.

Thus, the cancerous cells lack the anchorage dependence

6 0
3 years ago
Why do plants of the fields become yellowish?​
aliina [53]

Answer:

Poor drainage or improper watering

Explanation:

Water issues — either too much or too little — are the leading reason behind yellow leaves. In overly wet soil, roots can't breathe. They suffocate, shut down and stop delivering the water and nutrients plants need. Underwatering, or drought, has a similar effect.

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