During a controlled experiment a scientist isolates and test

How does pH impact life processes?

If speciation occurred solely because of changes in chromosome counts between the original parents (who were 2n) and the offspring (who were 4n), would this be an example of speciation by natural selection?

The head is ___ to the body's trunk. anterior inferior posterior superior

If you removed mutualistic ants from acacia trees, there would be Group of answer choices more atmospheric nitrogen available to acacia. less atmospheric nitrogen available to acacia. fewer herbivorous insects on the acacia.

The major ingredient in magma is A. pahoehoe B. silica C. dissolved gasses D. obsidian

Which of the following is a prediction based on the cell theory that all organisms are made of cells, and all cells come from preexisting cells?1. If you boil nutrient broth and place it in an air-tight flask, cells will appear in the broth2.

During photosynthesis, the energy from sunlight is used to split water molecules. What happens to the hydrogen ions that are split from the water molecules?

Which part of a scientific argument must be supported by valid data

What is used as evidence for continental drift

Ocean floor rocks are. Continental rocks