An annual plant bears fruit or flowers every year.
a. true
b. false

Explain the significance of thesaurus geographicus

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz