Which feature of animals evolved independently in more than one group? a. mammary glands b. jointed legs for locomotion c. amniote eggs d. gap junctions e. collagen?

Give the biological term for: structures that display characteristics of living organisms only within living cells

Most of the carbon on earth is stored in the form of

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters