Endocytosis and exocytosis are forms of active transport. What is active transport? the movement of molecules up a concentration gradient from low to high, using energy

the movement of molecules down a concentration gradient from high to low, using no energy

the movement of molecules up a concentration gradient from low to high, using no energy

the movement of molecules down a concentration gradient from high to low, using energy

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

Which of the following is a common response to cell signaling?