All of the following are arthropods except

a. crustaceans.

b. echinoderms.

c. arachnids.

d. insects.

What is an EDC and what is one example of it?

Describe the processes involved in both internal & external respiration.

Which mutation occurs when one nucleotide base is replaced with another base?

What organism has the most available energy

How many chemicals in cigarettes are known or suspected to cause cancer? more than 10 more than 20 more than 50 more than 75

8. List at least 5 new discoveries about viruses.

The phospholipid molecule has two parts, the polar end and the bipolar end. True or False?

Giraffes use their extremely long necks to reach the lees high up on a case he had trees which other animals can not reach giving them a food source for which they have few competitors what can you conclude about natural selection from this

Which is a reason that many organisms that have existed on earth have left no fossils?

Are all organisms with similar physical characteristics related to one another? If not, why?