An ecologist conducts a greenhouse experiment to study the effect of water concentration added to soil on the productivity of sunflower seedlings. what is the independent variable in this experiment?

A bee pollinating a flower or a plover cleaning the teeth of a crocodile are examples

Which structures are found only in prokaryotic cells

All organisms on earth require a source of energy to live. ATP is the fuel that powers all the activities of cells on earth. Which statement Best describes how ferns, people and flatworms obtain energy?

That you are scientist studying DNA

What does the first law of thermodynamics state?

If an individual inherits two of the same alleles, either both recessive or both dominant for a particular trait, the inherited genotype is what

What aspects of abundance do population density and population size measure, respectively?

What's an example of a multicellular producer

Are microorganisms alive and do microorganisms affect humans

Which statement best describes the process of chemiosmosis and the direct result of its occurrence? A. The choices are Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma.