Biology, 27.08.2019 01:10 unicornpoop54

1. the first forms of life on earth were
a. plants
b. microorganisms
c. birds
d. dinosaurs
2. a suggested and testable explanation for an event is called a
a. hypothesis
b. variable
c. theory
d. control
3. which of the following sciences is not considered a natural science?
a. biology
b. astronomy
c. physics
d. computer science

Answers: 2

Show answers

Other questions on the subject: Biology

Biology, 22.06.2019 02:00, ligittiger12806

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Answers: 2

continue

Biology, 22.06.2019 02:30, icee13

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

Answers: 1

continue

Biology, 22.06.2019 09:00, Webber07

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia

Answers: 1

continue

Biology, 22.06.2019 13:30, dondre54

How many copies of genes do gametes have?

Answers: 1

continue

You know the right answer?

1. the first forms of life on earth were
a. plants
b. microorganisms
c. birds...