Human intervention has caused a decrease in many populations. what can this change lead to over time?
background extinction
increased biodiversity
mass extinction
increased genetic diversity

Use the drop-down menu to complete the statement. an electron in the first energy level of the electron cloud has an electron in the third energy level.a. a lower energy thanb. a higher energy thanc. the same energy as

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

According to the cladogram, which organisms have roundworms as a common ancestor?