Why is succession slower on sand or bare rock than on previously vegetated soil exposed by a fire?

Which technological tool uses a sound echo to measure distance? A. sonar B. submarine C. ocean buoy D. robotic probe

Which addictive substance became the most important item of export from North America? Select the best answer from the choices provided. A) Tobacco B) Coffee C) Opium D) Tea

A group if organisms of different species living together in a particular place is called a?

As global temperatures increase, sea levels rise. Which of the following is a way that rising sea levels negatively impact marine biodiversity? A.) Fewer tropical storms and severe weather B.) Less oxygen levels at various depths C.

The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s.

Drag and drop each phrase to show whether it describes a pond or a lake. sunlight reaches the bottom Pond Lake small and shallow plant growth throughout no plant growth on the bottom deep and cold Sunt does not reach bottom

What is a leading cause of death for paddlers in small crafts such as canoes kayaks and rafts boat ed?

How would a change in the sequence of nucleotides in a DNA molecule affect the mRNA transcribed from the DNA molecule?

Which planet rotates most slowly about it axis

What is an advantage of using cell culture rather than bacterial culture to produce biological molecules?