Avenomous snake that often gives a warning before biting

What was the land like over 500 million years ago? what was under the sea?

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids