Plants that have many seasons of reproduction are called
a) annuals
b) yearlys
c) meristems
d) perennials

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

What will happen if two of the base pairs of the stand of the dna are switched

What does the number 18.9984 represent in the image?