Active transport performs which function in a cell?
a. packages proteins for export from the cell b. distributes enzymes throughout the cytoplasm c. moves substances against a concentration gradient d. equalizes the concentration of water inside and outside the cell

Some plants rely on the wind to reproduce an example is it’s important for plants to use the forces of nature to reproduce because 1. 1a white tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut? 2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?

What noticeable trend from this graph might be used to make a conclusion?

Crossing over is a method of (blank)?