What are examples of molecules (related to breathing that move by simple diffusion right through the membrane) 1. goes from higher concentration outside the cell into the cell; whereas 2. moves from higher concentration inside the cell to outside to be exhaled by our lungs.

Dan made the table shown to describe two different relationships between animals. organism interactions relationship a relationship b one organism lives inside the organism it feeds off no organism is harmed which of the following statements is most likely correct?

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.

Agroup of organisms that changes over time is said to