Aplanet has an orbital period of 34.02 years. what is the average distance of the planet from the sun?

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human