A caterpillar eats only plants. A robin eats the caterpillar. What is the role of
the robin in this system?

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

How does a gymnosperm prevent itself from pollinating the same tree

Which of the following is the most likely outcome of global warming