Select all that apply. The small intestine . breaks down food to a thin, watery mixture
absorbs dissolved food with hundreds of villi
stores food
churns and mashes food into smaller pieces

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f