Which of the following is an example of a niche? a. A squirrel living in a tree.
b. A fish in a pond.
C. A lion hunting for zebra in a grassland.
d. Two birds flying in the air

You got 47 minutes to answer

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

How does the carbon cycle involve an exchange of carbon