5. Which 3 structures have 2 membranes? (1pt) a. Endoplasmic reticulum, nucleus, mitochondria
b. Chloroplast, golgi apparatus, mitochondria
C. Vacuole, nucleus, ribosomes
d. Nucleus, mitochondria, chloroplast

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Ecology can best be described as the study of what

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases