Which of the following is a scientific way of determining facts

What is also known as trisomy-21

What is osmosis? Describe this process including the types of molecules that move and the energy required. Include in your description details about the areas of concentration on either side of a membrane when osmosis occurs.

Explain how biogeochemical cycles and the rock cycle are important for life on Earth.

Which of the choices was an evolutionary innovation that contributed to the successful colonization of land by the first terrestrial plants? Select all that apply. 1. gametophyte generation 2. roots 3. leaves 4. cuticle 5. sporophyte generation

Which of the following would be a result of eutrophication of a lake? A) undergrowth of water plants B) hypoxia, or low levels of oxygen C) decreased decomposition D) inactivity of fertilizers

Why is carbon important to life in earth

What is the appearance of cell after it has been placed in pure water for thirty minutes

What is the term for the first recognizable movement of the fetus in the uterus? a. Abruption b. Effacement c. Gestation d. Quickening?

What type of annoying insect is named for a colorful article of clothing?

Which of the following represents the correct order in which early humans appeared? Homo erectus, Homo habilis, Homo sapiens, Australopithecine Homo habilis, Australopithecine, Homo erectus, Homo sapiens Australopithecine, Homo habilis, Homo