Supposed a biologist design an experiment to study the effect of water pollution on the reproduction rate f salmon. what is the dependent variables in this experiment

How does current affect biodiversity in rivers and streams? a. It prevents bacteria and algae from living in rivers and streams. b. It causes a decrease in biodiversity by preventing organisms from remaining in rivers and streams. c.

Which words identify types of galaxies

Which characteristic makes a cell membrane selectively permeable answer?

Why does a geostationary satellite must orbit the Earth in 1 sidereal day rather than 1 solar day?

What is a molecular clock

What is true about gradualism with respect to punctuated equilibrium

Which statement is true? A. Prokaryotic cells do not have a membrane. B. Eukaryotic cells have multiple membranes. C. Eukaryotic cells have one membrane. D. Prokaryotic cells have multiple membranes.

The nucleus is an essential component of all body parts except for?

A gene pool consists of all the genes within a

A scientist want to observe The structure that joins a cell to neighboring cells. How should the scientists observe