Science 101
The work of scientists usually begins with _____.
What is "Careful observations"
Oxygen has a slight negative charge and hydrogen a slightly positive charge. This makes water what specific type of molecule?
What is polar.
The universal genetic code present in all living things.
What are protons, neutrons, and electrons
What are scanning and transmission electron microscopes.
The smallest object that biologists study.
When sugar is dissolved in water, the water is the____.
Two ways that living organisms reproduce
What are sexual and asexual reproduction.
Atoms with the same number of protons but different numbers of neutrons.
What are isotopes
What are ribosomes.
A personal, rather than scientific point of view for or against something.
What is bias.
The process by which molecules move from an area of higher concentration to lower concentration.
What is diffusion
the process by which living things maintain a stable internal environment.
A bond formed when two atoms share their electrons
Part of the cell that helps with cell movement and maintains the shape of the cell.
What is the cytoskeleton.
A well tested explanation that unifies a broad range of observations.
What is a scientific theory.
The values on the pH scale that signify a liquid is a base.
What is 7-14
A signal to which an organism responds
what is a stimulus
An atom contains 6 protons, 8 neutrons, and 7 electrons. What is the atomic number?
A group of similar cells that performs the same function.
What is tissues.
What is one goal of science?
--to use derived explanations to make useful predictions
--to investigate and understand the natural world
--to explain events in the natural world
The property of water responsible for cohesion.
List 2 of the characteristics of living things.
Substance formed by the chemical joining of two or more elements in definite amounts.
The fate of an animal cell surrounded by fresh water.
What is it will burst.