Describe a scenario in which an organism can go from the top level to the bottom level.

17. Which mutations can affect offspring?

Explain how many cells are produced from one fertilised egg, after two cell divisions by mitosis

Which of the following statements about DNA are true? (A) The bases are located inside the helix formed from two polynucleotide strands. (B) The grooves all have the same dimensions. (C) The two strands run in the same direction.

Because of the way our species evolved, many tendencies are either present at birth in all humans or develop rapidly during maturation. an example of one of these tendencies would be:

Explain the effect of the mutation that occurs among northern european on lct gene expression

Why is the equator warmer than the north and south pole

Recognize and use signal words, Assignment Signal words let you know what's coming next in a sentence. Signal words show relationships between ideas. Use the drop-down menus to identify the signal words in each sentences.

Which processes are caused by convection currents in the mantle? Check all that apply. 1. earthquakes 2. ridge push 3. tsunamis 4. slab pull 5. volcanic eruptions 6. subduction

Imagine that you are studying the food preferences of a lizard species across its range. you have hypothesized that because these populations are fairly separate from one another, the lizards have evolved different food preferences.

An animal cell (left) and a plant cell (right) are shown. Which organelle labeled x in the diagram is found in both plant and animal cells