Do plants have cell walls and if so what are the cell walls made of

Which statement describes a characteristic common to both active and passive transport A. Both move solute molecules against a concentration gradient B. Both need hormones or activator molecule to move molecules C.

What are 3 fundamental axes of rotation

Decide whether the following properties are physical (PP) or chemical (CP) properties. 1. magnetic 2. malleable 3. temperature 4. reacts violently with sodium 5. length 6. mass 7. produces a different gas when heated 8. soluble in alcohol 9.

What kind of symbiosis is shrimp being protected by sea anemone?

What types of cells would be produced by meiosis?

Dna stands for what in biology

Coal is used to produce energy. The harmful gases produced by coal are cleaned up by a method which needs a large amount of limestone. Predict and explain the long term effect on the environment of obtaining and using limestone.

True or false two genes may not segregate independently if they are on the same chromosmoe

Blood pressure rises and falls in a pattern corresponding to the phases of the

Immune system cells enter a resting phase after undergoing mitosis. when activated-for example, by an infection-they can reenter the sequence of events in the cell cycle that leads to cell division.