Blog

Determine whether the underlined portion of the statement is true or false. Jonathon Foley told us, in The Other Inconvenient Truth, that if we took all of the land used for agriculture on earth and lumped it together it would be almost the size of South America.

The passionflower plant has developed leaf structures that look like a butterfly’s egg because these structures:

Fecundity refers to the number of offspring an organism is capable of producing. What do species with low fecundity have in common?

A population of minnows in a pond is growing under natural conditions with limited resources. As the minnow population increases in size, how will its rate of growth affect its population density?

Diseases that are found in water, soil, or plants are utilizing a(n) ________ reservoir.

______________ or density-independent selection, selects life history traits that maximize reproduction.

In the equation dN/dt = rN, r is a measure of the population’s intrinsic rate of increase. It is determined by which of the following? 

A sea otter and a sea star are examples of…

     The praying mantis looks very much like a blade of grass. What is it called when animals look like other animals or plants?

Two species of ducks live in a lake. One species feeds mainly near the shore, while the other prefers to forage in deeper waters. These species are engaged in which ecological activity?