The correct answer that would best complete the given statement above would be the term ADAPTIVE RADIATION. African cichlids are a group of closely related fish species. There are at least 500 known species living in three small lakes. Over time, specialized teeth and body colorations have evolved for each species in response to mutations and competition for food and mates. This change over time is an example of ADAPTIVE RADIATION. Adaptive radiation by definition, is <span>the diversification of a group of organisms into forms filling different ecological niches.</span>
Answer:
Unicellular
Explanation:
Some organisms are microscopic and consist of only 1 cell
Answer:
because people where not alive yet oontill cenoznic era
Explanation:
Answer:
cell walls and chlorophyll
Explanation:
they are the key difference between the two types of cells .plant cells have chlorophyll and cell walls while animal cells only have a cell membrane