Scientific method
Biology
Organization of living matter
Theories of life
Auxiliary sciences of biology
100
A variable that changes because another variable is changing is called a _____________ variable.
Dependent
100
What is biology?
The study of life; living things
100
What is the biosphere?
Earth.
100
What is the most accepted theory of the origin of life?
Big Bang
100
What science studies flowers, plants and grass?
Botany
200
What is a hypothesis?
An statement of a scientific explanation that can be tested through experimentation or observation.
200
Name three things that biologists study? (Hint: Not things but processes)
Structure, Function, Growth, Origin, Evolution, Distribution of living organisms
200
What is the second smallest unit of life?
Tissue
200
The first cells to exist lived from CO2 and Sun, they obtained their energy through the process of _____________?
Photosynthesis.
200
This two sciences study animals and humans, how are they called?
Physiology and Zoology.
300
What is a controlled group?
Baseline group that does not have changes in the independent variable
300
Who was the scientist that looked at a cell from a cork in a home-made microscope?
Robert Hooke
300
If in an ecosystem there is a group of 20 foxes living with 5 wolfs, how is this group called?
A community
300
What are the building rocks that early bacteria created? (Hint: they are the smallest unit of proteins and DNA)
Amino acids and Nucleotides.
300
What science studies structures such as proteins, lipids, carbohydrates and DNA?
Biochemistry or Molecular Biology
400
Give two options to reduce research bias.
Have a large sample in the experiment
Repeating experimental trials multiple times
Including all data points
Using placebos when appropiated
400
What is the principle that states the ability of an organism to control its body functions in order to uphold a stable internal environment even when its external environment changes.
Homeostasis
400
In this organization, there is missing one element. Rearrange it and complete it.
Cells-Organ-Tissue-Organism-Community-Ecosystem-Population
Cells-Tissue-Organ-Organ system-Population-Community-Ecosystem
400
What is the theory that states that all life was created because of a meteorite that came from outer space?
Panspermia theory
400
What auxiliary science of biology studies the heritage? and who found out the structure carrying our heritage?
Genetics and was found by Watson and Crick.
500
Identify the independent and dependent variable of experiment 1 and 2:
Independent: Radioactivity in the cells
Dependent: Protein coats radiollabeled and Phage DNA radiolabelled.
500
What is the principle that states that an organism's traits are encoded in the DNA? And who proposed this principle?
The gene theory proposed by Gregor Mendel
500
What is the smallest unit of a lipid? (Hint: the building rock)
Fatty Acids
500
What was the composition of the atmosphere in early Earth?
CO2, H2O, N2, PO3, NH3
500
How is called the auxiliary science that studies the smallest unit of life? And who published the first drawings of living single celled organisms?
Cellular biology and was published by Anton Von Leeuwenhoek