In pea plants, purple flowers are dominant over white flowers. The phenotype ratio of purple to white flowers in a population of five plants is 4:1. How many plants have white flowers? A) 1 B) 2 C) 3 D) 4

The movement of Earth's tectonic plates is related to A. cycles of sunspots. B. movements of materials in the mantle. C. phases of the Earth's Moon. D. seasonal changes in weather systems.

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How does diffusion cause culture change?

Identify the cell types in bone and list their major functions

Which part of the cardiovascular system pumps the blood through the body and to the lungs? lungs Vessels Arteries Heart

Meiosis is responsible for

Which of the following examples illustrates a pivot joint in use? A. you wind up to pitch a baseball B. you wave good bye to your friend C. you kick a football D. you look behind you

Bacterial cells have a much higher rate of metabolism than animal cells. Under ideal conditions some bacteria double in size and divide every 20 min, whereas most animal cells under rapid growth conditions require 24 hours.

What term includes all the biotic and abiotic elements in an area?

Best way to avoid infections and keep your immune system healthy