Biology
A type of reproduction that requires one parent is________
Asexual reproduction
The amount of matter in a substance or object is _______
Mass
True or false? Like charges attract each other.
FALSE. Like charges repel, but opposite charges attract.
_____ are the living components of the environment.
Biotic factors
Which switch allows current to flow through?
Closed switch. A loop is formed and allows current to flow through.
What is the structure of DNA?
2 linked strands that wind around each other to resemble a twisted ladder
What state of matter allows the particles to slide past each other?
Liquid
What is the difference between series and parallel circuits?
A series circuit only has one pathway for electons to flow through. A parallel circuit has two or more path for current to flow through.
Photosynthesis and cellular respiration are ______
Complementary
________ is the energy in motion that is observable and measurable.
Kinetic energy.
What are the four stages of mitosis in order?
Prophase → Metaphase → Anaphase → Telophase
Where, in the periodic table, can the most reactive elements be found?
Bottom left.
______ is a device that converts electrical energy into another form of energy.
A load
Name 4 main greenhouse gases.
Water vapour, Carbon Dioxide, Methane, Nitrogen Oxide.
What is another name for producers?
Autotrophs.
What are nucleotides and what are they made out of?
The building blocks of DNA; consisting of a sugar, a phosphate, and a nitrogenous base.
How many electrons can the 4th energy shell hold?
18 electrons
What three things do generator systems consist of?
A turbine, a shaft, and a generator.
What cycle does not include the atmosphere?
The atmosphere does not have a significant role in phosphorus cycle.
True or False? Elements with larger atoms are more reactive.
TRUE. The loss of electrons is a lot easier because the larger the atoms, the farther away the valence shell will be, and the attraction between the nucleus and valence electrons decreases.
Describe cancer and its relation to checkpoints.
Cancer is a gene mutation and uncontrolled cell growth. Cells know when to stop growing and dividing because of checkpoints, and cancer occurs when the body's cell ignores those signals.
What are the names of the 7 diatomic elements?
Hydrogen, Nitrogen, Flourine, Oxygen, Iodine, Chlorine, and Bromine.
FALSE. The unknown object can be negatively charged OR be neutral. Since any charged object attracts neutral object.
What does the great ocean conveyor belt do?
Redistributes heat in the oceans around the globe.
How do bases pair?
Nitrogen bases bond to specific bases on the other strand. Complementary bases form hydrogen bonds with each other.
A-T 2 hydrogen bonds
C-G 3 hydrogen bonds.