Two groups of related living things are no longer considered to be the same species when

a. They can no longer interbreed.

b. They do not eat the same food.

c. They do not look the same.

d. They become physically separated from each other.

Time and velocity are both factors True or false

Unlike an animal's habitat an animal's niche can be described by all of the following except

Which words or phrases describe characteristics of quartzite

How do worms get and interpret information about their environment?

Three requirements of an efficient respiratory system

On a molecular level, all organisms a. have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes. b. have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code. c.

Which consumers are carnivores (eat meat) ?

What do you know about an organisms parents if it is heterozygous for a certain trait? a. both parents supplied the same allele b. the parents had different traits c. the parents supplied different alleles d. the parents have the same traits

Which is not a reason that scientists use bacterial dna rather than human dna in biotechnology?

Which of these acts as a second messenger? which of these acts as a second messenger? cyclic amp g protein adenylyl kinase g-protein-linked receptor protein kinase?