Heterotrophs and autotrophs are linked on earth by the processes of cellular respiration and photosynthesis, respectively. why is this?

To make an mRNA transcript from a gene, the RNA polymerase needs to 'know' where to start and to stop. What are the signals and proteins involved in initiating and terminating RNA polymerase activity in E. coli?

What does it mean if the Change in Mass is a positive number?

How do animals store glucose? Where do they store it?

Gives strength to cell: would this be plasma membrane or cell wall

In a small population, a random Chang in allele frequency is called

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