Which element is most important for adding strength to hair, feathers, and outer skin?

oxygen

hydrogen

sulfur

phosphorus

All of the following statements are part of cell theory except: A. All organisms are made up of one or more cells. B. All cells carry on life activities. C. All cells are parts of tissues. D. All new cells come from pre-existing cells.

How do the sperm cells get from the stigma to the ovules

Is color blindness autosomal or sex linked what does this mean and which chromosome X or Y etc

What three modifications of the small intestine that increase the surface area for absorption

Which of the following will be the most similar? A. Two cells in the same tissue B. Two tissues in the same organ C. Two organs in the same system D. Two systems in the same organism

Does the lymphatic system produces eggs and protects the fetus

What is deplorization represented by

Information flow (with the exception of reverse transcription) moves from DNA to RNA via the process of transcription. True or False

The temperature of the ocean is different at the surface than it is near the deep ocean floor. Why do you think that is the case?

Philosophy is a branch of science. True False