The smallest of the vertebrate classes, the are represented by only 4,000 species.
a. bony fish
b. jawless fish
c. amphibians
d. sharks

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?