Which describes the flow of energy in a food chain?

A.

grass → mouse → snake → sun

B.

mouse → snake → sun → grass

C.

snake → sun → grass → mouse

D.

sun → grass → mouse → snake

What is the difference between the greatest distance and the least distance ridden on one fifth of a mile to one mile

Vegetarians do not eat animal products but rather derive their protein from plant sources. Which type of protein do vegetarian food sources lack?

One sign of infectious canine kennel cough is

In ovaries, the final productstep of meiosis are

What are two main sources of genetic material found in viruses?

Why does the meiosis produce cells with only half the amount of DNA? How does this aid in the formation of a healthy zygote?

Which way does the sun's gravity act on any body in orbit? A. pulls it forward in its orbit B. pulls it backward in its orbit C. pulls it toward the sun

Which two processes result in variations in sexually reproducing species? (1) mutation and genetic recombination (2) mitosis and natural selection (3) extinction and gene replacement (4) selective breeding and cloning

How was the amount of food caught by a heron related to change in biotic and abiotic factors?

Which ecosystem demonstrates the lesser biodiversity? Why?