All the interconnected paths of energy flowing from species to species in an ecosystem is called a

a. trophic level.

b. food chain.

c. detrital food web.

d. food web.

11. How many elements are in the second period, or row, of the periodic table a. 1 b. 2 C. 8 d. 18

A tennis ball travels the length of the court 24m in 0.5 s find its average speed

A hot-air balloon is 150 feet above the ground when a motorcycle passes directly beneath it (traveling in a straight line on a horizontal road). The motorcycle is traveling at 40 mph.

Is it possible for speed to be constant while acceleration is not zero? Physics

A uniform electric field exists in the region between two oppositely charged plane parallel plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 3.

What is the tense In sailed

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a