Answers: 2
Biology, 22.06.2019 10:00, nyasiasaunders1234
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 20:30, francisco42002
Water diffusing through a semipermeable membrane is called
Answers: 1
Biology, 23.06.2019 01:30, sarah192002
Trees with light brown bark dominate an ecosystem the ecosystem has populations of insects that thrive on the tree bark over time some insect species developed certain physical characteristics that them thrive on the tree bark these physical characteristics also the insects defend themselves from predators which insect species is probaly the species with the new physical characteristics?
Answers: 1
Ahigh birth to death ratio leads to smaller populations...