Answer:
The carbon cycle
Explanation:
is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere and atmosphere of the Earth. The cycle is usually thought of as four major reservoirs of carbon interconnected by pathways of exchange.
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Answer:
A. looking for ways to improve the quality of water
Answer and Explanation: The farmer has a pure-breeding line of tomato means the farmer has a tomato with genotype FFrrtt while the other line of tomato has genotype ffRRTT.
The cross between these lines gives a F1 generation of heterozygous full, red and axial or FfRrTt.
With an individual of F1 crosses with another individual of F1, the Punnet Square will be:
FfRrTt x FfRrTt
1) Dividing each characteristics, for simplicity:
F f
F FF Ff
f Ff ff
R r
R RR Rr
r Rr rr
T t
T TT Tt
t Tt tt
Analysing Punnett squares, we notice the line wanted (ffrrTT) will be produced, when an individual of F1 generation cross with another individual with the same generation.
The answer is B. Hairs have different lengths due to variations in the activity of their respective hair follicles. Hair has growth and resting phases. The hairs on the head have longer growth phases compared to those of the eyebrows. Therefore, they grow longer before they start falling out in the resting phase. Those of the eyebrows get to the resting phase quicker hence are shorter