Which characteristics make estuaries productive ecosystems?

A car moving at 12 m/s and has mass of 600kg. What is the kinetic energy of the car?

A researcher discovers a fossil of what appears to be one of the oldest-known multicellular organisms. the researcher could estimate the age of this fossil based on

If a substance decomposes, it has undergone: physical change chemical change phase change

How do pyramids of net production and pyramids of biomass differ? a. Unlike pyramids of biomass, pyramids of net production are based on measurements per unit time. b. Pyramids of net production include fewer trophic levels than pyramids of biomass.

In human beings, which factor determines the sex of an individual? A) paring with the X chromosome B) genes within the chromosomes C) presence of the Y chromosome D) number of chromosomes

Deepest place in the seafloor is called the

Monohybrid cross is made between plants that

Which statement best describes an aerobic heterotroph

What disease disables the bodys immune system?

A small fish eats plant material. Later that day, a heron dives into the water and eats the small fish. Which type of organism does the small fish represent in this scenario? parasite predator prey producer