Unlike minerals such as iron and calcium, protein is a macronutrient in the human diet. Why is protein a macronutrient? A. The human diet should be made up of mostly protein. B. Proteins are the most calorie-dense molecules that humans eat. C. Proteins are one of the few inorganic compounds that humans eat. D. The human diet requires a relatively large amount of protein.

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

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things