PLEASE HELP
dentify the processes that occur during the electron transport chain.
(Select all that apply.)
A. Carbon dioxide is released.
B. Protons are moved across a membrane against their concentration gradient.
C. Oxygen is produced as a waste product.
D. Electrons are removed from the carrier molecules NADH and FADH2.

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 activity of the modern sample is 1.10 bq . how long does that measurement take?

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.