How is dna used as evidence for evolution
a. all species have the same amount of dna.
o
b. all species have the same genea.
o
c. all species have the same number of genes.
d. all species have the same genetie code.

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.