In any food web, which organism has the LEAST available energy? A) birds or omnivores B) plants or producers C) fungi or decomposers D) animals or carnivores

What are the spiral arms of the Milky Way made of? A. Older stars and comets B. Variable stars C. Younger stars and gaseous nebulae D. Asteroids and comets

Give four examples of species that are over utilised

What type of plant has both male and female forms? a. Daisies b. Mosses c. Conifers d. Roses

How are organic sedimentary rocks different from other sedimentary rocks? A. They are formed from lava. B. They are made up of once-living things, like shells. C. They are formed from the fragments of worn-down rocks. D.

Why are proteins so essential to life? what are some things they do?

What is an example of a limiting factor that humans use to control the carrying capacity of an environment for a particular type of organism? Explain your answer.

How does natural selection support the theory of evolution? A. Natural selection explains how the changes in life forms that evolve over millions of years take place over shorter periods of time. B.

Example of wave amplitude

Which biome is likely to be the home of zebras and lions?

What is the mode of the test scores below?