Which resource is likely a limiting factor for plants living in hot and arid deserts? Select one:

Sand.

Sunlight.

Water.

Being grazed on.

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Vessels draining the myocardium of the heart, open primarily ,into which chamber?