Which of the following gases gets added to seawater primarily by geological processes?

A: nitrogen

B: argon

C: methane

D: oxygen

Two groups of related living things are no longer considered to be the same species when a. They can no longer interbreed. b. They do not eat the same food. c. They do not look the same. d. They become physically separated from each other.

Which tool would be most useful for observing the structure of a flower?

A group of students is determining the number of plastic bags placed in a landfill during a single day. What are the students doing? A. Stating a problem B. Making a conclusion C. Collecting data D. Analyzing data

Compare transcription initation in prokaryotes and eukaryotes.

Most elderly people who are hospitalized with cancer eventually die from the disease. thus, if an elderly person wants to recover from cancer he or she must, at all costs, refuse hospitalization. the fallacy here is called

Differences between prokaryotic and eukaryotic promoters?

Why does directionality in carbohydrates matter?

How does the nervous system maintain homeostasis

Was Durer Roman Catholic or Protestant?

The gametophytes of an unknown plant are contained within the sporophyte, and the plant produces separate male and female gametophytes. Which the following is the best conclusion about the life cycle of this plant? a.