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kompoz [17]
3 years ago
6

Place the developments in evolutionary history in the proper time frame.

Biology
1 answer:
BARSIC [14]3 years ago
3 0
B) I, II, IV, III must be the answer
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How much work is done on a 100-N boulder when you lift it 2m straight up?
zzz [600]

200J

Explanation:

Given parameters:

Force on boulder = 100N

Distance moved = 2m

Unknown:

Work done = ?

Solution:

Work done on a body is the force applied to move such body in the direction of the force.

           Work done = force x distance

Input the parameters in the equation:

       Work done = 100 x 2 = 200Nm or 200J

The work done in lifting the boulder is 200J

Learn more:

Work done brainly.com/question/9100769

#learnwithBrainly

5 0
3 years ago
20 points. Help asap .!.!.!
Oksanka [162]
A. Cheap food supply
6 0
3 years ago
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Which movement of particles would be most affected by a disorder that causes damage to carrier proteins ?
Makovka662 [10]

Active transport;

The movement of particles would be most affected by a disorder that causes damage to carrier proteins is the active transport.

Explanation;

Active transport involves the movement of materials against the concentration gradient.

This type of transport requires energy in form of ATP to aid the movement of particles from a lower concentration to a higher concentration.

Active transport requires carrier proteins such as the sodium-Potassium pump, to move materials in and out of the cell.

7 0
3 years ago
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The graph shows the changing levels of hormones during menstruation and ovulation. What is the general trend for hormones after
rjkz [21]

The general trend for hormones after ovulation as an individual when it approaches menstruation is that hormone levels generally rise. This increase levels of estrogen and progesterone would cause a negative feedback to the hypothalamus and the pituitary, which would result in the decline of the FSH and LH. BTW: Not to be TMI but i started mine and there is nothing to be scared of.

7 0
3 years ago
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Which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower te
vladimir1956 [14]

Answer:

Option (E).

Explanation:

The cell membrane constitute the phospholipid bilayer, proteins and small amounts of carbohydrates. The unsaturated fatty acids contain the double and triple bond in its structure.

The introduction of double bond introduces the kink in its structure and makes the membrane less rigid. This prevents the packaging of the lipid tightly and makes the membrane more permeable. This makes the membrane more fluid even at the lower temperature.

Thus, the correct answer is option (E).

4 0
3 years ago
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