Biology
2. what is true of paramecia?
a. they are algae.
b. they a...
Answers: 1
Biology, 21.06.2019 18:50
Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide
Answers: 3
Biology, 21.06.2019 19:40
In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20
Answers: 1
Biology, 22.06.2019 10:00
Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
Answers: 2
Biology, 22.06.2019 11:30
Which is the best example of plant tissue? the answer is d (just took the test)
Answers: 1
Chemistry, 07.12.2021 20:00
Mathematics, 07.12.2021 20:00
Chemistry, 07.12.2021 20:00
Social Studies, 07.12.2021 20:00
Mathematics, 07.12.2021 20:00
History, 07.12.2021 20:00
Mathematics, 07.12.2021 20:10