1Heterotroph
organisms that depend on other organisms for food
2Mutation
An abrupt and marked change in the DNA of an organism compared to that of its parents
3Theory
A hypothesis that has been thoroughly tested and has data to back it up
4Photosynthesis
the process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food
5Homeostasis
The maintenance of stable internal conditions.
6Inference
Logical interpretation based on prior knowledge experience or evidence
7Anabolism
The sum total of all processes in an organism that use energy and simple chemicals and structures necessary for life
8Organisms that make their own energy are called:
Heterotrophs
9Explain why it can be said that most of life on Earth gets its energy from the sun.
Autotrophs energy directly from the sun. Whereas heterotrophs do not get their energy directly from the sun they either eat autotroph‘s or other heterotrophs that eat autotrophs
10Which of the following is an example of qualitative data?
The brown bear positioned itself in the middle of the stream.
11What is a hypothesis?
a possible explanantion that can be tested
12Explain the difference between an obwervation and an inference.
An observation is made using one of the five senses. An inference is made using logical interpretation based on prior knowledge or experience.
13A tiger develops lockjaw and can no longer open its mouth. Which of the criteria for life will it not be able to perform?
Since the tiger cannot open its mouth he cannot eat therefore metabolism and energy will Be affected and if you cannot eat he cannot gain energy and if he cannot get energy he cannot live.
14Why did the law of spontaneous generation survive for so many years?
It survived because experiments which were later found to be flawed seemed to confirm it.
15Match the type of microscope most useful for viewing each of the following:
a. the details of the surface of a human hair A. compound light microscope
b. the small organisms in a drop of water B. transmission electron microscope
c. the detailed structures inside a muscle cell C. scanning electron microscope
a—C
b—A
c—B
16In laboratory studies, organisms from group A produce offspring with subtle differences as compared to the parents. Organisms from group B produce offspring that are identical to the parents, and organisms from goup C produce offspring with marked differences as compared to the parents.
Which group reproduces asexually?
Group B
17In laboratory studies, organisms from group A produce offspring with subtle differences as compared to the parents. Organisms from group B produce offspring that are identical to the parents, and organisms from goup C produce offspring with marked differences as compared to the parents.
Which group reproduces sexually?
Group A
18In laboratory studies, organisms from group A produce offspring with subtle differences as compared to the parents. Organisms from group B produce offspring that are identical to the parents, and organisms from goup C produce offspring with marked differences as compared to the parents.
Which group is experiencing mutations?
Group C