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almond37 [142]
3 years ago
11

DNA is found coiled up into chromosomes within what cellular structure?

Biology
1 answer:
Anni [7]3 years ago
6 0

Answer: it should be 3) nucleus.

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Why are whales important to our society
Sliva [168]
When it comes to the environment and the oceans ecosystem whales help regulate the flow of food by helping to maintain a stable food chain and ensuring that certain animal species do not overpopulate the ocean.
3 0
3 years ago
What is meant by the following statement about the cell membrane?
AysviL [449]

Answer:

The cell membrane is semipermeable because allows only certain molecules to pass through.

Explanation:

Semipermeability is a common property of cell membranes, due to their predominantly lipid composition, which gives them a hydrophobic character.

The cytoplasmic membrane is constituted by a double layer of lipids, in addition to structural proteins and glucides, which prevent the entry of polar or charged molecules. This characteristic allows lipids and small molecules without charge to pass freely through it.

Regarding the other options:

<em>     A. Cell membranes are associated with lysosomes, structures that contain enzymes. However, this characteristic is not related to semipermeability.</em>

<em>     C. They allow the passage of small molecules - devoid of charge - through them.</em>

<em>     D. Not all non-polar molecules pass through, as some need a transporter.</em>

6 0
3 years ago
Read 2 more answers
Which type of fossil evidence helps determine the evolutionary relationship between two hominid species?
Triss [41]
The skull size of each species! 

It's the size of the skull specifically the jaw bones, that can help determine relationships of two hominid species.

Hope this helps!
8 0
3 years ago
Explain the results from trial 1 in which all of the conditions proposed by oparin and haldane were met in the miller-urey appar
kolezko [41]
<h2>Modern Abiogenesis Hypothesis</h2>

Explanation:

  • American physicists Harold Urey and Stanley Miller consolidated warm water with water fume, methane, smelling salts, and atomic hydrogen. These beat with electrical releases. These parts were intended to recreate the crude sea, prebiotic air, warmth, and lighting
  • After seven days they found that basic natural atoms, for example, amino acids had framed
  • Hence the Miller-Urey try effectively delivered atoms from inorganic parts thought to have been available on the prebiotic earth
  • Hence, the right answer is "Modern abiogenesis hypothesis is based on Oparin- Haldane theory and Miller- Urey experiment"

6 0
3 years ago
During which process is oxygen used by green plants ?
DiKsa [7]
I would say a so I would so do a
3 0
3 years ago
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