Biology, 14.02.2020 00:27, leriscepowell3654
A(n) allows some substances to move freely into and out of a cell by simple diffusion while it will always exclude some substances from crossing. However, some substances that cannot cross by simple diffusion can pass through with the help of either active or passive transport proteins.
Answers: 1
Biology, 21.06.2019 23:30, lovelybear2354
Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.
Answers: 1
Biology, 22.06.2019 05:20, kay3940
The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis
Answers: 3
A(n) allows some substances to move freely into and out of a cell by simple diffusion while it will...
Geography, 06.07.2019 04:30
Health, 06.07.2019 04:30
Mathematics, 06.07.2019 04:30
Mathematics, 06.07.2019 04:30
Health, 06.07.2019 04:30