2026\2027 A+ Grade
What can scientists answer?
- correct answer --Things that can be answered by measuring things by collecting data
How to biologists test ideas about natural world?
- correct answer 1) Ask question
2) develop one or more hypothesis
3) make one or more predictions
4) test predictions
5) results
Hypothesis
- correct answer --a proposed explanation
--educated guess as to the answer to your question
Ex: Why are my daisies wilting?
hypothesis: daisies are wilting because they didn't get enough water
Prediction
- correct answer --more practical than hypothesis
--a statement of what we should measure or observe in nature if hypothesis is correct
Ex: If I water daisies sufficiently then my daisies will no longer wilt
Theory
- correct answer --a proposed explanation for a very broad class of phenomena or observations
--don't call something a theory unless there is a lot of data to support it
, Evolution by natural selection explains:
- correct answer 1) diversity and similarities of organisms
2) adaptations to the environment
Special creation
- correct answer --Pattern:
1) species independent/separate entities
2) species static/don't change over time
--Process: each species created separately and instantaneously by divine being
--view earth as very young and some species are better than others
Evolution by Darwin and Wallace
- correct answer --Pattern "descent with modification":
1) Species related by common ancestry
2) species change through time
--Process: Natural selection
James Hutton and Charles Lyell
- correct answer --Earth is slowly, subtly, and continuously changing
--earth is very old
Jean Baptiste Lamarck
- correct answer --proposed mechanism for evolution "inheritance of acquired characteristics"
(INCORRECT)
Ex: giraffe necks. thought that through use an organism could adapt a characteristic in their lifetime and
pass it on. doesn't work this way
--emphasized adaption to the environment (no one else focused on this!)
Thomas Malthus
- correct answer --potential of human population to increase faster than food and other resources