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Roman55 [17]
3 years ago
11

Without the work of x-ray crystallographer _______, DNA might not have been discovered for some time longer than it was. Group o

f answer choices
1. James Watson
2. Francis Crick
3. Rosalind Franklin
4. Thomas Malthus
Biology
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

1, 2 and 3

Explanation:

Rosalind Franklin pioneer the discovery of the DNA double helix through x-ray image diffraction which gave Watson and Crick important clues to the final structure of DNA.

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When a boxer is hit in the head by a moving fist, what type pf concussion injury does this,?
mr Goodwill [35]

There is a transient electro-physiologic dysfunction of the reticular activating system in the upper midbrain caused by rotation of the cerebral hemispheres on the fixed brainstem. -The CSF cushions the brain from light trauma in times of more severe impact, the forces on the brain may be linear, angular, or rotational, in rotational movement, the head turns around its center of gravity: this is the primary mechanism causing concussion. 

6 0
3 years ago
What type of mutation cannot happen in a child after birth ?
Elenna [48]

Well I think is physics right? Like bones

6 0
3 years ago
Water can move freely through the membrane from a higher to a lower concentration in a transportation process called _____.
nignag [31]

Answer: The correct answer for the fill in the blank is osmosis.

Osmosis is defined as the movement of solvent (like water) from a region where the concentration of solute is lower to a region where the concentration of solute is higher though a semipermeable membrane.

In other words, it is the water movement from an area where its ( water ) concentration is higher to an area where its concentration is lower.

This process does not require any energy as water is moving along the concentration gradient.  

8 0
3 years ago
Read 2 more answers
What is embedded in the phospholipid bilayer that helps in the movement of larger molecules ?
gladu [14]

Answer:

\boxed {\boxed {\sf A. \ Channel/Transport \  proteins}}

Explanation:

The phospholipid bilayer is also known as the cell membrane. It covers cells and regulates the transport of substances. Certain ones can pass and others cannot, depending on certain factors like size and polarity.

Smaller substances tend to diffuse or move across the membrane quite easily. However, larger molecules have a much harder time. Many depend on special proteins embedded in the membrane. These are called transport proteins and they form a channel so large molecules can still move in or out of the cell.

So, salt, water, and fats do not contribute to the movement of larger molecules, but <u>channel or transport proteins do and choice A is correct. </u>

3 0
3 years ago
What is the difference between metameres and septa
JulijaS [17]

Answer: External segments are called metameres and internally, septa, or dividing walls, are located between the segments.

Explanation: I think it is

5 0
2 years ago
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