Plants that have both imperfect male and imperfect female flowers on a single plant are called (blank).

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

20 the compound al(nh3)2 has atoms of nitrogen.

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