B <span>What is the effect of crop selection for pest resistance on the distribution of leaf size in a population of plants?
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Answer:
a thing or event that evokes a specific functional reaction in an organ or tissue
a thing that rouses activity or energy in someone or something; a spur or incentive
an interesting and exciting quality.
Explanation:
Answer:
25% red flowered
25% white flowered
50% pink flowered
Explanation:
Let the red flower color be represented by RR, the white color by rr.
When RR was crossed with rr, the offspring had pink flowers;
RR x rr = Rr, Rr, Rr, Rr (Pink color)
Crossing Rr with another Rr
Rr x Rr = RR, Rr, Rr, rr
RR = red
Rr = pink
rr = white
<em>Hence, if a pink flowered plant is crossed with another pink flowered plant, 25% of their offspring will be red, 25% will be white and 50% will be pink.</em>
Answer:
Deforestation
Explanation:
people cut down trees to use for paper shelter and heat . when they over do it and clear a large part of the forest its clased deforestation.
Reproduction, Heredity, Variety in fitness of population, and variety in characters among the population are all four conditions for natural selection.
