If you start with 100 grams of radioactive carbon in 50 grams remain after 5730 years what is the half-life of the isotope

Mitosis is a type of cell division that produces cells that are identical to the parent cell. Meiosis is a different type of cell division that produces cells that carry half the genetic material of the parent cell.

What is the percentage of tornadoes that occur in Texas?

Which statement best describes the process of muscle contraction?

How would a disease that damages the mitochondria most directly affect the functioning of cells?

How are kelp and seaweed similar?

What is the name of the process cells membrane pinching in the center to form two daughters cells

Which of the following is an example of an organism maintaining homeostasis? 1. A cat grooming itself 2. A bear nursing her cubs 3. A man sweating while he runs 4. A boy riding a bike

Which of the following is a characteristic of lipids? (Choice A) AThey are composed of nitrogenous chains. (Choice B) BThey are not soluble in water. (Choice C) CThey are either fats or oils. (Choice D) DThey are polar molecules.

A 3-month-old infant hospitalized with severe diarrhea has excoriated skin in the diaper area. the parents become concerned when they discover that the nurse has left the infant without a diaper. what is the nurse's explanation for this action?

Which of the following is an abiotic factor of an ecosystem? A. weeds B. a rabbit C. soil D. a snake