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Gwar [14]
2 years ago
5

What do the bubbles in ice cores represent?

Biology
1 answer:
Sveta_85 [38]2 years ago
3 0
C.

They are air bubbles and depending on when the ice froze, that is air that can be used at a sample to measure the carbon dioxide levels in the atmosphere at the time of freezing.
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Which of the following best describes the purpose of examining mammary secretions in mares before parturition?
Arisa [49]

The statement that best describes he purpose of examining mammary secretions in mares before parturition is testing for elevated levels of calcium.

<h3>What is the processes of parturition in mares?</h3>

In parturition, a fetus is fully developed, a process called Ferguson reflex occurs to stimulate contractions. The canal is lubricated by a fluid called allanotic fluid and facilitates the discharge of the amnion and the fetus. A virginal distension releases oxytocin and more contractions.

For a mare to be ready for parturition, elevated levels of calcium is tested from the mammary gland to confirm that the mare is healthy and ready for parturition.

Learn more on parturition here: brainly.com/question/14982881

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3 0
1 year ago
Which two atoms form a covalent bond?
LenKa [72]

Answer:

D.

Explanation:

5 0
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The amino acids bond together to form which type of complex molecule?
Kipish [7]

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Protein

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8 0
4 years ago
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Propane is burned to provide the heat in many cooking grills. The chemical
tangare [24]

Answer: it's 3CO2+4H2O+Energy

Propane is a linear alkane of formula C3H8. It is mainly used as fuel (this is the main component of liquefied petroleum gas) in cooking and chemical industry reactions.

The reaction of its complete combustion by the presence of oxygen is:

C3H8 (gas) + 5O2  ==> 3 CO2 + 4H2O + energy (2220⋅kJ)

As we can see, propane can release carbon dioxide and water as every combustion reaction, and a lot of energy in the form of heat.

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Specialized cells are grouped into structures known as
gregori [183]
Your answer should be tissues.
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