Many organisms in an ecosystem compete with each other for resources What might different species of wees in a forest ecosystem compete for?
A Water
B producers
C predators
D all of these

Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly

18. which statement about cancer is true?

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