A previously unidentified organism is found in a tropical rain forest. It exhibits bilateral symmetry,
heterotrophism, and has an exoskeleton. Would you classify this organism as a vertebrate?

Yes. Bilateral symmetry and heterotrophism are unique to vertebrates.

Yes. Only vertebrates are found in tropical rain forests.

No. Exoskeletons are not found in vertebrates.

No. Vertebrates have radial symmetry.

Providing immunity by injecting the body with a weakened form a pathogen is known as

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes