The structure of hair is formed by keratin. Keratin is most likely which of the following polymers? A. nucleic acid B. lipid C. starch D. protein

Which describes a function of plasmodesmata?'?

A coral reef ecosystem might include all of the following organisms: phytoplankton, clams, octopus, moray eel and barracuda.

What is the acceleration of the Atlas V if it is launched empty, using the larger booster?

Describe how you would carry out sampling with a pitfall trap. State how you would reduce the risk of harm to capture organisms.

Write a short paragraph that describes the earths layers

Which of the following statements are incorrect? A. Stem vascular bundles in monocots are in a ring. B. Dicot roots are fibrous in structure. C. Pollen in monocots has one opening. D. Dicots have floral parts mostly in multiples of fours and fives.

In the living world, there is a great deal of genetic variation. The genetic information of dogs differs from the genetic information of cats. The genetic information of plants differs from the genetic information of bacteria.

Explain the concept of same DNA in all body tissues

What happens in meiosis I that does not occur in meiosis II?

What is the meaning of calories