Environmental science
Physics
biology
chemistry
200
what are abiotic things?
Any non living factors in the environment.
200
How are parallel and series circuit different?
Parralell circuits have two or more pathways for electric current to take and series has only one pathway for electric current to take.
200
What is point mutation?
A single nucleotide base thats changed,inserted,deleted,or substituted in a dna or rna sequence.
200
What are periods and groups?
periods are the horizontal rows 1-6 and groups are vertical rows 1-18.
400
what are the four spheres?
geosphere, hydrosphere,biosphere,atmosphere.
400
what is direct current?
direct current is electric current that flows in one direction.
400
What does the nucleus do?
Directs and controls the ability of the cell to grow,develop,and function. determines what each cell will become.
400
where are metalloids found on the periodic table?
The staircase shapes group closer to the right of the periodic table beside the non metals.
600
how much energy is lost each time in energy pyramids
ten percent of the energy is passed down each trophic level.
600
what is alternating current?
alternating current is electric current that reverses direction.
600
what does the dna model look like?
A double helix shape - two strands twist and wind around each other.
600
what is a covalent compound?
form when two more non metals share electrons +form covalent bonds.
800
how do ocean currents move warm water around?
Ocean currents act like a conveyor belt,moving warm water from the equator to the poles and cold water from the poles move toward the equator.
800
what is a junction point?
A junction point is the place where pathways separate or join in a parallel circuit.
800
what happens in mitosis?
during this stage the nucleus of the cell divides into two equal and identical parts. Each part has a copy of the dna.
800
what are metalloids state a room temperature?
solids
1000
what is cellular respiration and how is it different from photosynthesis.
cellular respiration is glucose+oxygen to sunlight,carbon dioxide and water. It releases energy and is used to get cells what they need to function. Photosynthesis is used for plants and it stores energy. It takes sunlight water and carbon dioxide to make glucose and oxygen.
1000
A toaster is plugged into a 120v outlet. What is the resistance of the toaster if the current in the toaster is 10A?
R=V/I R=120/10 R=12 ohms
1000
what stage of the cell cycle does the duplicated chromosomes move apart to opposites ends of the cell?
Anaphase
1000
what is the total number of atoms in the molecule?
NH4C2H3O2
total=12
N=1 c=2
H=7 O=2