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schepotkina [342]
3 years ago
10

Which is not a characteristic of amniotic sac

Biology
1 answer:
Vikentia [17]3 years ago
8 0
<span>is there suppose to be an A) B) C) D)?</span>
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The condition that occurs when a zygote is missing in each cell is referred to as
scoray [572]
A monosomy occurs when a zygote has a single chromosome missing in each cell. This happens when<span> a portion of the chromosome has one copy while there are two copies in the rest of the other chromosomes.An example of an disorder is the Turner Syndrome which has only 1 X chromosome in female genome.</span>
5 0
3 years ago
A field biologist observed and recorded the ground squirrel population in a forest ecosystem over a 40 year period. During which
nordsb [41]
The answer will be B
6 0
3 years ago
Above 380C and below OoC the rate of photosynthesis decreases. Propose a hypothesis to explain why this occurs.
Effectus [21]

<u>Answer:</u>

<em>Enzyme activity decrease at these temperatures. </em>

<u>Explanation:</u>

Photosynthesis is facilitated by the action of various enzymes and involves light and dark reactions.  In <em>light reactions chlorophyll absorbs sunlight and creates ATP AND NADPH</em>. In dark reactions carbon is fixed using the <em>ATP and NADPH. </em>

The efficiency of all these activities depends on the activity of enzymes which depends on the temperature. The optimum temperature range where the enzyme activity is optimal is about <em>10°c - 20°c</em>. At low temperatures and high temperatures enzyme activity is less efficient.

<em>At a temperature above 38°c and below  0°c enzyme activity decreases. </em>

7 0
3 years ago
. What is the first step of thermonuclear fusion within the Sun to form helium-4?
torisob [31]

Answer:

a nucleus of Deuterium (2H)

Explanation:

formed from two protons with the emission of an antielectron and a neutrino. In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus.

5 0
2 years ago
Read 2 more answers
In terms of environmental economics, the only factions that disagree with each other are environmentalists and economists. True
MatroZZZ [7]

The correct answer is FALSE.

It is false that the only factions which disagree with each other is economists and environmentalists.

Economists are referred to as practitioners which are found in the social science and their work is to discipline economics.

A person can develop, study and apply some concepts and theories from economic.

Environmentalists are termed as supporters who supports the movement of the environment.

There is a ethical movement of the movement or political which works to protect and improve quality of environment which is natural.

Environmentalist believes in environmentalism philosophy.

3 0
3 years ago
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