Answer:
Means to increase drag and prevent sinking is the correct answer.
Explanation:
Plankton avoid sinking by increasing their surface area and decreasing their density. Spines slow down sinking by adding surface area without increasing density. Defense against predation would be to sing below. Not the opposite.
Because their foots is shaped like a spade
<span>The winds characterized by blowing in the middle latitudes of the Northern Hemisphere from the northeast are known as the Westerlies. </span><span>The westerlies are the </span>prevailing winds<span> from the west that move toward the east in the </span>middle latitudes<span> between 30-60 deg. </span>latitude<span>. The Westerlies come from high-pressure zones in the horse latitude, and they move towards the poles steering cyclones in this manner. </span>
I think it is true.i hope's this helps
The weakness of hydrogen bonds between the bases of DNA allows for the easy separation of the two DNA strands during replication of DNA.
In replication, an initiator protein unwinds a short length of the DNA double helix. Next, an enzyme known as helicase attaches itself to the unwound helix and begins to break the hydrogen bonds between the base pairs of the two DNA strands thereby pulling them apart to form a Y shape called a replication fork.
The relative weakness of hydrogen bonds between the base pairs make it fairly simple for helicase enzyme to beak them apart and thus the process is done very rapidly.
