Which of the following is an example of natural selection?

Biology

2 answers:

Alexxx [7]3 years ago

8 0

Answer:

A) Hummingbirds drinking nectar from a plant.

Step-by-step explanation:

Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.

gogolik [260]3 years ago

4 0

Answer:

D. Brown colored lizards surviving and reproducing because they are better able to camouflage themselves from predators.

Explanation:

While the other options have the potential to be influenced by the environment, answer D is the only one that explicitly says that a certain trait (brown coloring) in a population (lizards) will help them to survive and reproduce more as a direct result of that trait.

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A pea plant with round seeds has the genotype rr. if you cross this plant with a wrinkled-seed plant, genotype rr, what is the p

Lapatulllka [165]

I think you wrote this wrong? Is it not round rr vs wrinkled RR?? I'll answer it with that assumption:

You are crossing a rr with an RR:
You only get Rr back so they will phenotypically be all wrinkled

If you are crossing rr with an Rr (so a heterozygote wrinkled):
50% will be Rr (wrinkled)
50% will be rr (round)
See my picture for the Punnett Squares for both answers!