subject
Biology, 09.02.2022 21:50 kfcnkfnmnfk9513

Nitrogen is the most abundant gas in the atmosphere but it is in a form that is not usable by living things. True

False

ansver
Answers: 3

Another question on Biology

question
Biology, 22.06.2019 02:40
How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.
Answers: 1
question
Biology, 22.06.2019 03:00
The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates
Answers: 1
question
Biology, 22.06.2019 09:10
Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10
Answers: 2
question
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
You know the right answer?
Nitrogen is the most abundant gas in the atmosphere but it is in a form that is not usable by living...
Questions
question
Mathematics, 30.11.2020 21:00
question
Social Studies, 30.11.2020 21:00
question
Social Studies, 30.11.2020 21:00
question
Mathematics, 30.11.2020 21:00
question
Mathematics, 30.11.2020 21:00
question
Mathematics, 30.11.2020 21:00
question
Mathematics, 30.11.2020 21:00