Answer: D) Placenta
The placenta helps bring nutrients towards the fetus.
The testosterone level directly affects the ability of having a satisfying sex. It affects the men reproductive systems.
Answer:
The correct answer would be -
a. observation
b. observation
c. invalid
d. observation
e. reasoning
Explanation:
Any observation or statement form or generated by the understanding and nothing any event. The first statement is formed by observing the sun and the rest of the solar system and comparing its mass. The second and fourth statement is also observations made on fact or noticing the.
The fifth statement is reasoning as it deriving something from logic and fact. The third statement is invalid as the universe made before the sun.
The question is incomplete as it does not have the options which are:
- greater the unsaturation, the lower the fluidity.
- greater the unsaturation, the higher the melting temperature.
- lower the unsaturation, the greater the fluidity.
- greater the unsaturation, the greater the fluidity.
- Canadians have developed plants with higher amounts of unsaturated fatty acids.
Answer:
Greater the unsaturation, the lower the fluidity.
Explanation:
The differences in the lipid content of the membrane of the plant cells in Canada and Africa can be accounted for the difference in the temperature of Canada and Africa.
The temperature in Africa is higher compared to Canada as a result of which the cell membrane increase saturated lipids which could keep the membrane normal whereas the Canada plants increase the unsaturated lipids which increase the fluidity of the membrane.
Thus, the selected option is correct.