unit 1
what is matter?
anything that has mass and takes up space
who formed cell theory and how long has it been around?
Matthias Schleiden and Theodor Schwann, 150 years old
what is the definition of heredity?
the definition of heredity is the passing of traits from parent to offspring
who was Charles Darwin?
he was an English naturalist who created the theory of evolution.
what is an adaptation?
an adaptation is an inherited characteristics that increase an individual’s ability to survive in its environment
what is an atom
the smallest basic unit of chemical element (they make up everything)
what is a unicellular organism and what is multicellular organism?
a unicellular organism an organism in which an individual life-form consists of a single cell and a multicellular organism an organism in which an individual life-form consists of different types of cells with specialized shapes and functions
what does it mean when eukaryotic organisms have two sets of chromosomes?
there are two of each chromosome. humans have 23 pairs of chromosomes which add up to a total of 46 chromosomes
Which scientists influenced Darwin and who was he?
jean-Baptiste Lamarck and he was a French scientist who tried to explain how species changed.
what are Behavioral cycles
behavioral cycles are patterns of behavior that repeats at regular intervals
what is a closed system?
a system that allows energy, but not matter, to enter or leave
what are Eukaryotic cells and what are Prokaryotic cells
Eukaryotic cells are cells that have a nucleus and other membrane-bound organelles, and Prokaryotic cells are cells that contain no nucleus or other membrane-bound organelles, found in two groups of mostly single-celled organisms, including bacteria
What is a gene?
a gene is a section of DNA that controls the traits
what is over production?
in biology, overproduction is when organisms produce more offspring than can survive
what is homeostasis?
homeostasis is a balanced and stable environment within cells and organisms