Substances to be smelled and tasted must always be surrounding the receptor cell

If many different species live in an ecosystem, this the ecosystem to fill its a. populations b. niches c. producers d. communities

Which of the following typically characterizes a tropical rainforests

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.