There are 3 tissue systems that make up a leaf of a vascular plant. Which statement describes how the tissue systems work together to maintain homeostasis in the plant

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

How can you tell the difference between rough er from smooth er?

What is the difference between a scientific hypotheses and a scientific theory?