Which of the following is not a characteristic of a climax community?

a. high levels of biodiversity

b. presence of complex organisms

c. conditions suitable for all organisms

d. experiences no change

Four types of motile cells in human body?

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?