In a healthy, functioning ecosystem, chemicals and nutrients are constantly recycled and reused True or false

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.