During crossing over in meiosis, an incomplete exchange of genetic material occurs. this would most likely produce

Which process causes the easterlies to flow in the direction they do? A. movement of a convection cell B. even heating of the earth at all places C. solar wind D. Coriolis effect

Are humans ivasive species

While examining a pond sample, you find an amoeba. as you watch, the organism bulges forward from its main body, creating a sort of foot, and then the cytoplasm flows into the foot, pushing the whole cell forward.

The ___ retains its nucleus and controls the translocation of sugar.

Why doesn't semen enter the urinary bladder during ejaculation? Why doesn't semen enter the urinary bladder during ejaculation? The smooth muscle sphincter at the base of the urinary bladder closes.

What organelle packages materials that will be shipped out of the cell?

Why do complementary nucleotides across the double-stranded dna bond together using hydrogen bonds rather than covalent bonds?

How are dichotomous keys used?

Which two statements about composite materials are true? -They're made up of more than one substance. -They have the same or similar properties as the materials used to make them. -They're always made of metal. -They're readily available in nature.

What is rna, in biology