this variable is changed or manipulated in an experiment
independent variable
this is considered the building block of life and is the smallest form of life
cell
the elements that build molecules of water and carbon dioxide include
carbon, hydrogen, and oxygen
zoology translates to
the study of animals
these are parts of an experiment that remain identical through all the experimental groups
constants
this body system exchanges oxygen and carbon dioxide
respiratory system
this molecule is a simple sugar produced by plants through photosynthesis
glucose
there are 9 major _______ to categorize animals
phyla/phylums
universal system of measurement, system of 10s
metric system
two organelles that differentiate plant cells from animal cells
possible answers: chloroplast, large central vacuole, cell wall
this organelle makes ATP energy through cellular respiration
mitochondria
arthropod translates to
jointed foot
a scientist who studies birds is called a/an
ornithologist
step-by-step process used by researchers to explore observations, test ideas, and answer questions about the natural world
scientific method
roups of similar cells that work together for a specific function builds a/an
DNA is contained here in prokaryotic cells and here in eukaryotic cells
cytoplasm, nucleus
a jellyfish is a part of this phylum
the idea that the total mass before a chemical reaction or physical change always equals the total mass after it is known as
the law of conservation of mass
this organelle and this organ are similar in that they allow certain things through based on what the organism needs to absorb or excrete
this structure speeds up reactions to break down or build new molecules
enzyme
the “first animal” is also known as a
protozoa