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ale4655 [162]
3 years ago
7

What are introns and Exons??

Biology
1 answer:
jeka943 years ago
3 0
Introns are parts of genes that do not directly code for proteins. (2)

Exons are parts of DNA that are converted into mature messenger RNA (mRNA). (6) The process by which DNA is used as a template to create mRNA is called transcription.
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7. What do sea spiders use for gas exchange?
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Answer:

sea spiders are marine arthropods that lack gills and rely on cutaneous respiration but still grow to large sizes. Their cuticle contains pores, which may play a role in gas exchange

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3 years ago
Which rocks does it get melted by heat and pressure?
vovangra [49]

Answer:

Metamorphic rocks

Explanation:

Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock is subjected to heat and pressure, causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock.

6 0
3 years ago
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Hydrosphere Part 1 / 34 of 46
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Answer:

D

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Because water vapour is a gas and evaporation is the process of turning a liquid into a gas so the water which is the liquid turns into water vapour the gas

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What are the six kingdoms of life?​
Anuta_ua [19.1K]

Answer:

Archaebacteria, Eubacteria, Fungi, Protista, Plants, Animals

Explanation:

8 0
3 years ago
Some animals shiver as a natural, involuntary response to their environment. Shivering generates heat. This is an example of whi
anyanavicka [17]

Answer: The answer is C!!! :D maintaining homeostasis by regulating the body's temp!

Explanation:

Shivering as a natural, involuntary response to generate heat is an example of  maintaining homeostasis by regulating body temperature.

Homeostasis refers to the maintenance of a relatively constant body environment. The normal range of operation of the body system is known as the setpoint.

When the setpoint temperature for some animals is breached, a negative feedback mechanism is used to return it to the setpoint. Shivering to generate heat is a response to a cold environment when the body's temperature is about to drop below the setpoint.

The oppositeis sweating. Sweating causes cooling and comes in response to when the setpoint temperature is exceeded.

Hopes this helps happy early Christmas!!!! :D

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3 years ago
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