Crop rotation involves?

A: Killing Pests

B:Planting different crops each year

C:Making more work for farmers

D:Planting cheaper seeds

Name the 2 ions form when water dissociates

Menjelaskan klasifikasi reproduksi peranan protista

Ten percent of energy is transferred from one level to the next level on the energy pyramid. What happens to the other 90% of energy? A. It is stored as fat. B. It is given off as heat. C. It is stored as a protein. D. It is used in reproduction.

Living creatures which can be seen only by using a microscope are called what?

Name at least two of the microorganisms known to cause disease.

Which statement describes the formation of our sun? A disk formed of long trails of stars coiled into a spiral. It formed an elliptical flattened disk. Heat and gases contracted within a nebula. Gravity pushed stars away from a center core.

Which molecule is synthesized by plants and is a major source of energy for plants and animals?

What structure provides a protective environment in which the fetus's temperature is well regulated and protects the fetus from friction caused by the mother's movements?

Does tracheids have protoplasts or not

If spiders cann't chew how do they eat