7. Indicate which stage of mitosis is occurring in each of the images above and describe what is happening using the words: chromosomes, centrioles, nucleus, and spindle fibers.
A
B
D
C

Amajor source of energy for your body comes from

Write a paragraph explaining how energy flows through an ecosystem using the following terms: energy pyramid, trophic level, producer, primary consumer, decomposer, sun, secondary consumer, and tertiary consumer. .

Which of the following are causes of evolutionary change? 1)genetic drift 2) natural selection 3) gene flow 4)mutation