Animals with this type of symmetry in the middle. They have tissue but no organs or organ systems.

The integumentary system has many functions, one of which is multiple choice production of vitamin e. prevention of albinism. protection from cancer. detection of heat and touch. regulation of acid-base balance.

When plants undergo photosynthesis, they take in water and other nutrients from the soil and carbon dioxide from the air to produce sugar and oxygen. How do photosynthetic plants typically affect the other organisms in their ecosystem? A.

What plant cell part captures energy from the sun to make food? cell membranes chloroplasts cell walls vacuoles

Choose the answer that best describes gravity. Question 2 options: Gravity only works between planets. Gravity is a contact force that holds objects down on Earth. Gravity is a contact force that holds the Moon in orbit around Earth.

Which process provides immunity against antigens and pathogens in the body fluids?

Which describe colloids? Check all that apply. heterogeneous mixtures homogeneous mixtures may have a uniform appearance are made up of at least two substances will settle out over time

A period during which the embryo of a seed is alive but not growing is a. dispersal. b. fertilization. c. germination. d. dormancy.

Which rights determine who is responsible for managing the resources? ___rights determine who is responsible for managing the resources.

Body composition is affected by two factors - the number of calories eaten (energy in and the amount of activity performed and calories burned (energy out. body composition is maintained by:

Which body system rapidly communicates information using electrical signals? A. Endocrine B. integumentary C. Nervous D. Respiratory