during the fall season, a lot of leaves on the trees turn lighter green/yellow and then orange / red. What causes the color to become lighter green/yellow?

1. What exists if there is not enough water for all living things on Earth? overpopulation global water influx surface water flood global water shortage . 2.

Identify the phenotype for item 4. Answer: Wrinkled Yellow

Immune cells have been genetically modified to treat cancer. Stem cells, as well as other cells in tissues and organs in the human body, have been genetically engineered.

Are spiders multicellular?

Which of the following is the best scientific question for proposing a hypothesis and designing an experiment on the effect of a drug (Drug X) on decreasing blood pressure? A. Should we lower blood pressure? B.

What causes the phase of the moon? A. The earth's shadow on the moon. B. How much of the sunlit side of the moon faces Earth C. Clouds blocking the moon's light.

If we removed the decomposers from this food web, how would it affect the balance of the ecosystem? A.) There would be an increase in dead matter and a lack of nutrients in the soil. B.

Which of the following statements is true? aWater and energy are not recycled in an ecosystem. bWeathering is the main way phosphorous is recycled. cThe total amount of energy in an ecosystem continuously increases.

How many chromosomes are present at the end of metaphase?

What percentage of the offspring have sickle cell anemia