Which of the following contributions to the theory of the conservation of energy is an observation of a biological system?

I need to make a 10 question quiz on eukaryotic and prokaryotic cells

Explain the type of behavior involved when the bell rings at the end of class

What is the correct definition of a solution? A) A graduated substance B) a heterogeneous mixture C) a homogeneous mixture D) a primary mixture of elements

An organelle that you can see in a plant cell that you cant see in a animal cell

In eukaryotes, in what cellular compartment are introns removed from pre-mrna to make mature mrna?

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

Where is the name of the process by which coal is taken from earth after the layer of ground on top of it is removed? A) Underground mining B) Coal rig mining C) Strip mining D) Water-blast mining