When do both hemispheres receive the same amount of the sun’s energy?
only winter solstice
only autumnal equinox
only vernal equinox
both autumnal equinox and vernal equinox

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Which of these parts of the membrane large moecules pass through it ?