The ________ is the basic unit of structure of all living things.
What is cell
100
Blood cells are produced in ________.
What is bone marrow.
100
The energy the smooth muscle produces in ___________ tissue is used to move blood through the circulatory system.
What is cardiac muscle.
100
The liver is an organ of the __________ and __________ systems.
What is excretory and digestive.
200
The ________ are the projections of the inside wall of the small intestine.
What is villi
200
The jelly-like substance between the cell membrane and the nucleus is the ___________?
What is cytoplasm
200
Food travels down the ________, to the stomach and then to the ____________, where _________ diffuse into the blood.
What is esophagus, small intestine, nutrients.
200
The tissue that makes up bones, tendons, and ligaments is __________.
What is connective tissue.
200
A plant stands up straight because of water pressure against the __________.
What is cell walls.
300
Cells that detect conditions in the body's environment are __________?
What is receptors.
300
At _________, bones are connected to each other by _______, while ________ connect bones to muscles.
What is joints, ligaments, tendons
300
Air travels down the trachea to the __________, where ___________ diffuses into the blood through the walls of the ___________.
What is lungs, oxygen, alveoli.
300
Bile, produced by the liver, breaks down ___________.
What is fats.
300
Microscopes were invented in the 1600's by ______________.
What is Robert Hooke.
400
The _________ controls the cell activities, and the ___________ regulates what enters and leaves the cell.
What is nucleus and cell membrane
400
The structure in the kidney that filters urea and water from the blood is a __________?
What is nephron
400
___________ and __________ are carried by the blood to muscle cells. The energy they produce in _________ tissue is used to move bones.
What is nutrients, oxygen, and voluntary muscle.
400
The urea and water that make up urine are removed from the blood in the ___________.
What is kidneys.
400
Mathias Schleiden concluded that every plant is made up of cells. True or False?
What is True.
500
Air sacs in the lungs through which oxygen and carbon dioxide diffuse into and out of the blood are the ______________?
What is alveoli
500
Particles move from areas where there are a lot of them to areas where there are fewer of them by __________. Water and materials dissolved in water pass through a membrane by __________.
What is diffusion and osmosis.
500
The energy the voluntary muscle produce in ________ tissue is used to move food through the digestive system.
What is smooth muscle.
500
A neuron transmits signals from its _________.
What is axon.
500
The liquid part of the blood is called __________.