Person's hand holding a small purple flower in the middle of a field

Open book with a drawing of a plant on it

Holly fern plant growing out of the ground in the woods

Person holding a small yellow buttercup flower in their hand

Drawing of a fish on a piece of paper

Close up of a plant in the grass with a wooden log on the right side

Cross section of a human stomach with a small amount of small cells

X-ray of a dog&#39;s spine against a black background

Old book with a drawing of a man in a suit and tie on the cover