Unit 1
Is this statement an observation or inference. The statement is "There is a lady walking in the grocery store".
Observation
When was the cell theory first put together?
1838
what shape is a DNA molecule?
double-helix
True or false: Fossils come in all sizes
True
Do learned behaviors come naturally or do you have to experience.
Experience
what does an open system allow to leave and enter?
Energy and matter
Do prokaryotes cells contain a nucleus or any other membrane-bound organelles?
No
Fill in the blank: A genotype is an organisms....... as demined by its alleles
Genetic makeup
When did the Darwin voyage start?
1831
how many cells does a unicellular organism have?
one
How many atoms need to join together to form a molecule?
Two or more
who worked on the structure of DNA?
James Watson and Francis Crick
What are pigments made out of?
Specific proteins
What does a beneficial mutation do for you?
Increase the fitness of individuals.
What happens if a plant has no water?
It can't perform photosynthesis