Answers: 1
Biology, 22.06.2019 02:30, ElegantEmerald
How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
Answers: 3
Biology, 22.06.2019 13:00, blesskids600
This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient
Answers: 1
Biology, 22.06.2019 18:00, barnhill4755
The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .
Answers: 1
a cell contains a 4% concentration of salt. the cells enviornment is isotonic. which is a possible s...
Mathematics, 19.03.2020 02:35
Mathematics, 19.03.2020 02:35
Mathematics, 19.03.2020 02:35
Mathematics, 19.03.2020 02:35