Why are lichens a good pioneer species after a volcanic eruption? a. they are able to grow on moist soil. b. they are able to grow on bare rock. c. they are able to attract animals. d. they are able to grow without water.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human

The function of the excretory system is to control homeostasis and