What skin gland contains a duct that empties onto the skins surface

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative