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KatRina [158]
3 years ago
10

Which of earth's systems was most affected by fossilized dinosaurs?

Biology
2 answers:
soldier1979 [14.2K]3 years ago
7 0
I think it's lithosphere thanks for posting your questions on Brainly
grin007 [14]3 years ago
3 0

Answer:

C. Lithosphere

Explanation:

Just took the test and it was correct

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TRUE/FALSE
kotykmax [81]

Answer:

False

Explanation:

A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.

5 0
3 years ago
Is apoptosis a useful mechanism for prokaryotes?
sasho [114]

Answer:

yes it is a useful mechanism

7 0
2 years ago
Which component of a virus is lacking in a cell?
m_a_m_a [10]

Capsid is the component of a virus that is lacking in its cell

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4 0
3 years ago
The body determines whether certain genes should be expressed or not. Sometimes genes are only turned on once or twice in a life
zmey [24]

The gene which is produced once or twice in a lifetime is the milk producing hormone after childbirth. This is because it is produced only after the birth of the child. The growth of the mammary glands takes place during pregnancy. The breast continue to increase in size after giving birth to a child. After delivery only copious milk is produced which is generally done with the help of milk hormone. During pregnancy the secretion of the milk is inhibited by the estrogen and progesterone which circulates in the blood stream which in turn inhibits the release of prolactin from the pituitary gland thus making the mammary glands unresponsive. Where as insulin is a hormone which helps the body to utilise the sugar or glucose from different sources like carbohydrates that we get while we eat food and adrenaline is secreted when we are scared or when we feel that we are in danger. Therefore, milk producing hormone is the gene that are turned once or twice in a lifetime.

8 0
3 years ago
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belka [17]
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3 years ago
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