Which of the following extremophiles might researchers most likely use as a model for the earliest organisms on Earth? Which of the following extremophiles might researchers most likely use as a model for the earliest organisms on Earth? a. an anaerobic archaean species b. a bacterium that thrives in a highly acidic environment c. a bacterium found on another planet or moon d. an archaean capable of surviving in the polar ice caps

Explain why the plants cortex would serve as the best food source for animals

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.