What is the function of the endoplasmic reticulum?

a. to store energy for the cell

b. to produce food

c. to make ribosomes

d. to transport items in and out of the cell

e. to store water and waste

What explains why populations fluctuate around the carrying capacity?

Describe how to correctly prepare a microscope slide of an insect wing for viewing

Why do different bacteria ferment the same carbohydrate differently?

The simplicity of prokaryotic cells prevents them from a) growing and reproducing b) responding to their environment c) forming specialised tissues and organs d) moving through their environment

Which mineral is never found freely in nature but is extracted from a chemical compound? A. Coal B. Salt C. Gold D. Silicon

Explain why a mark on a blade of grass will move away from the ground as the grass blade grows

What do enzymes react with? A. the products of chemical reactions B. the active site of the plasma membrane C. proteins in the cytoplasm D. a specific substrate

Isaac watched a movie where a tsunami washed across the coastline. He related the incident to the geology of the ocean he learned at the school. Which geological phenomenon did Isaac relate to? A. plate tectonics B. upwelling C.

How do mutations affect an organism? A. they may cause the development of a disease-causing allele B. they may cause the development of a more beneficial allele C. they, in some cases, may have no noticeable affect D. all of the above

Scientists make two types of observations that can be either