What is one way to that changes can occur in a DNA sequence

Which of the following processes is a type of wind erosion? a. plucking b. abrasion c. inflation d. chemical weathering

Which summary below correctly describes what occurs during transcription? A DNA template is used to create an mRNA strand. An mRNA template is used to create a DNA strand. A DNA template is used to create a ribosome.

What would most likely happen if one or more parts of a cellular system failed to function properly? A. The system would no longer need that specific function. B. The system would not be able to function normally. C.

Describe the structures and functions of each of the four groups of macromolecules.

What are statements that are guaranteed to be true called?

Function of pollen tube

Example to illustrate the internal complexity of cells

What is the source of the pressure that has caused coyotes, which were once essentially diurnal, to adjust to a more nocturnal behavior?

Ants carry dead ants out of the anthill and dump them on a "trash pile." If a live ant is painted with a chemical from dead ants, other ants repeatedly carry it, kicking and struggling, to the trash pile, until the substance wears off.

What is responsible for the structures and functions of organisms