How do coral reefs grow? A) Coral reefs grow from the melted rock that flows from underwater volcanoes.
B) Coral reefs are comprised solely of limestone deposits.
C) Coral reefs grow similar to a plant.
D) Coral reefs grow upward an accumulation of calcium containing exoskeletons of past generations of coral animals.

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Match each symbol with its description.