Answer the question plz biology experts..

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

What organ systems are working to you cool down after a workout?