Which of the following compounds cannot freely diffuse through the plasma membrane

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.