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20 terms

Ch. 1 Biology Test

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homeostasis
maintaining internal equilibrium
5 Characteristics of Living Things
all contain DNA, grow & develop, obtain & use material and energy, reproduce, and maintain homestasis
Hypothesis
an educated guess
Steps to focus a microscope
1.) Carry with 2 hands: one under the base, the other at the arm 2.) prepare slide 3.) place slide on stage of microscope 4.) put in nosepiece on lowest objective 5.) focus slowly
Arm
supports the tube & connects to the base
Base
Used for support
Body tube
connects eyepiece to objective lenses
Eyepiece
lense at the top that you look through
Control
Stays the same
Job of lenses in a Microscope
magnify an image
Scientific Method
a logical and orderly way to solve a problem
Metabolism
sum total of all the chemical reactions in the body
Observation
a hypothesis that is supported by an experimentation
meter
unit of length
Liter
unit of liquid volume
Gram
unit of mass
Steps of Scientific Method
Prediciton, Observation, Hypothesis, Experiment, Conclusion
Lens X Eyepiece
how to calculate the total magnification of a microscope
Sexual
A mode of reproduction involving the fusion of female gamete (ovum) and male gamete (spermatozoon), which forms a zygote that potentially develops into genetically distinct offspring.
Asexual
A form of reproduction that does not involve meiosis, ploidy reduction or fertilization, and the offspring is a clone of the parent organism.