Which of these would best fill in the chart for “B”? A) 0 chromosomes
B) 23 chromosomes
C) 46 chromosomes
D) 69 chromosomes

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?