Liver tissue is a combination of many types of cells. In addition to other tissues, it contains connective tissue and epithelial tissue. Which two sentences correctly identify the roles of these tissues?

Match the types of competition to their descriptions.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.