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Tpy6a [65]
3 years ago
15

Which of the following is not needed in a population in order for natural selection to act?

Biology
2 answers:
fomenos3 years ago
8 0
Idk dude that's why you should study btw I had this packet is overproduction
FromTheMoon [43]3 years ago
3 0
I would say overproduction. Not sure though. Hope this helps!
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Four scientists collected data on the blood pressure of 30
AleksAgata [21]

Answer:

Scientist 3

Explanation:

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6 0
3 years ago
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If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?
vladimir1956 [14]

Answer: The solution was hypertonic

Explanation: The reason for this is the fact that the cell shriveled up. The shriveling was caused by water moving out of the cell. This movement is likely caused by a disbalance in solutes between the cell and the surrounding, with the surrounding containing a higher concentration of solutes. Diffusion tries to balance this by moving water out of the cell, thus increasing the concentration inside and reducing the concentration outside.

5 0
3 years ago
Cephalization, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in I) mammals II) cnid
zzz [600]

Option (III) .Cephalization, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in <u>Planaria.</u>

What is planaria?

  • Planaria is a genus of planarians in the family Planariidae.
  • When an individual is cut into pieces, each piece has the ability to regenerate into a fully formed individual.
  • Currently the genus Planaria is defined as freshwater triclads with oviducts that unite to form a common oviduct without embracing the bursa copulatrix and with an adenodactyl present in the male atrium.
  • The testes occur along the whole body.
  • Planaria originally have habitats in dark, murky water which results in such sensitivity .
  • They are also sensitive to other stimuli such as chemical gradients, vibration, magnetic and electric fields .
  • Their central nervous system includes the anterior (head, brain and eyes) and middle (abdominal trunk and pharynx).

To know more about planaria, refer:

brainly.com/question/1917416

#SPJ4

8 0
2 years ago
The major component of bone that contributes to its hardness is
lys-0071 [83]
Hydroxyapatite is the major component of bone that contributes to its hardness.
8 0
3 years ago
How can rock layers tell the geologic history of an area
lapo4ka [179]
Well let's take Sedimentary rock for example, The Law of Superposition which measures the average age of Sedimentary rocks using rocks around it. So you would use that rocks below it are older and that Extrusions and Intrusions are younger than the rocks which are stable.

7 0
3 years ago
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