A group of mollusks That became more abundant and important parts of reefs

Scientists originally thought cell membranes evolved before RNA. However, recent evidence suggests RNA developed before the membranes that envelop it. Explain why this is logical in light of the composition and function of both RNA and membranes.

What is essential for the survival of a species but not an organism?

what will likely cause an inscription on a marble gravestone to become more difficult to read over time

Which of the following characteristics of a watershed would act to reduce erosion? large floodplain areas soil with a high porosity a large number of lakes channels with a low gradient

In which zone is the ocean temperature most affected by the weather? A) the deep zone B) the surface zone C) the abyssal zone D) the transition zone

In sexual reproduction do parent cells need to be diploid?

Nutrients that our bodies need in small amounts are called question 9 options: micronutrients macronutrients essential fatty acids saturated fat

Genes pass from parents to offspring on what

Temperate grasslands are found in many regions across the globe, Name at least 2 regions

To test the responsiveness of the kidneys, scientists have designed an experiment tracking urine output of people during a normal day, while regulating the in-take of water by mouth. What would be an appropriate hypothesis for this experiment?