Scientific Method
The work of scientists begins with...
Careful observations.
ALL LIFE ON EARTH!
Biosphere.
4.586 - How many sig. figs.?
4
Devices that produce magnified images of structures that are too small to see with the unaided eye.
Microscopes.
The smallest units that can be considered fully alive.
A controlled experiment allows the scientist to isolate and test...
a single variable.
The community and its nonliving surroundings is...
Ecosystem
0.00538 - How many sig. figs.?
3
Name three types of microscopes - go.
Electron Microscope
Light Microscope
Compound Microscope
What does DNA stand for?
Deoxyribonucleic acid.
The goal of science is to...
investigate and understand/explain events in the natural world, and use those explanations to make useful predictions.
A community is...
Populations that live among one another.
1.0027 - How many sig. figs.?
5
Method used to prevent microbial contamination of the environment being worked in, the equipment and the specimen itself.
Aseptic Technique
An organism's ability to maintain a relatively stable internal environment.
Homeostasis.
A logical interpretation based on prior knowledge or experience.
Inference
A population is...
A group of organisms of one type that dwell in the same area.
7.5 x 10^2 in standard notation is...?
750
Separating cells into different parts.
Cell fractionation.
Explain and give an example of parasitism.
1 organism benefits, 1 organism harmed, i.e. tapeworm-human relationship.
An observed pattern in nature.
Scientific Law
Tissue + Organ = ???
Organ System!
0.0557 in scientific notation is...?
5.57 x 10^-2
What is the first step to take before entering the laboratory and using the facilities to complete a laboratory exercise?
Groups of atoms, the smallest unit of most chemical compounds. i.e. CO2