Geography
Geography, 11.11.2019 02:31, hcoulter15

darwin hypothesized that there are definite steps to natural selection. consider the model for natural selection. describe a scenario that represents this model of natural selection according to darwin.

a) in a population of rabbits, some are brown all year long. when it snows these rabbits cannot hide from predators and they become extinct.

b) in a population of sunflowers, mutations cause some flower heads to produce more seeds. more seeds means that there are more sunflower plants over time.

c) in a populations of birds, mutations result in different beak sizes so the birds do not compete for food in the area. the bird population is made up of birds with many different types of beaks.

d) in a population of bacteria, variations exist due to mutation. the bacteria are subjected to antibiotics. some bacteria die; others survive and reproduce. eventually, the bacteria a resistant to the antibiotics.


darwin hypothesized that there are definite steps to natural selection. consider

answer
Answers: 1

Other questions on the subject: Geography

image
Geography, 23.06.2019 06:00, girly37
Mosses, lichens and shrubs can be found where in russia? a. grasslands b. mountain regions c. coastal plains d. siberian tundra
Answers: 1
image
Geography, 23.06.2019 11:10, dee1334
Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?
Answers: 1
image
Geography, 23.06.2019 17:30, tdun7003
The position on the earth in which a place can be found
Answers: 2
image
Geography, 23.06.2019 21:20, HolaConcheeDaBrycee
Hey! can anyone me out with my homework? it will be very much appreciated! and !
Answers: 1
Do you know the correct answer?
darwin hypothesized that there are definite steps to natural selection. consider the model for natur...

Questions in other subjects:

Konu
Mathematics, 08.02.2021 23:50
Konu
Social Studies, 08.02.2021 23:50