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pentagon [3]
3 years ago
5

What is day and night

Biology
2 answers:
Y_Kistochka [10]3 years ago
5 0
Day is simply when a part of the world is getting direct sunlight and night is when the sun is not facing that part of the world and relies on the reflection of the sun on to the moon to get sunlight.
mihalych1998 [28]3 years ago
4 0
Day and night day and night d n n mm n me day and night at at at night day an night
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Steroid hormones and thyroid hormones ________ pass across the plasma membrane; they cause the target cells to ________ that pro
tekilochka [14]

Answer:

can ,synthesize specific proteins

Explanation:

Hormones are chemical signals secreted by animals and plant that are capable of regulating body activities and maintain homeostasis.

They are transported in the circulatory system of the body

The action of hormones can be seen after the hormone has bound to its specific receptor found inside the cell.

For instance, steroid hormone and the thyroid hormones can pass through the plasma membrane to their receptors inside the cells.

When they bind with their receptors, the target cells will synthesize specific proteins that produce the characteristic effect of the hormone.

6 0
3 years ago
in a dna molecule, the complementary strands are joined at the nucleotides by hydrogen bonds between the
avanturin [10]

Answer:

covalent bonds within each strand

Explanation:

3 0
3 years ago
If it takes 98.8 kcals to break one C--H found in an organic molecule, how many kcals does it take
steposvetlana [31]

395.2kcal

Explanation:

Given parameters:

Energy required to break one C-H bond = 98.8kcals

Unknown:

Energy required to break methane = ?

Solution:

The bond dissociation energy is the heat energy absorbed in breaking a covalent bond in the gas phase to its constituents elements.

  Solving

    CH₄ has 4 C-H bonds

To break 1 C-H bond, 98.8kcals of energy was used,

To break 4 of the bonds; 4 x 98.8kcals will be used = 395.2kcal

Learn more:

Hydrogen brainly.com/question/7213980

#learnwithBrainly

8 0
3 years ago
In patients with emphysema, what is the main stimulus of respiratory regulation?
Vlad1618 [11]
Hey there,
The answer is <span>high CO2 levels in the CSF.

Hope this helps :))

~Top
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4 0
3 years ago
Which statement compares how the euglena and volvox obtain food?
Gennadij [26K]

Both the Euglena and Volvox use an oral groove to obtain food, Brigid Ha. B. Both the euglena and volvox use chloroplasts to obtain food through photosynthesis.

this is what i looked up an got

4 0
3 years ago
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