Consider two ecosystems that scientists have labelled as ecosystem a and ecosystem b. the scientists have found that both ecosystems are home to a roughly equal number of species. however, ecosystem a

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane

What controls activities within a eukaryotic cell?