Disease causing agents such as viruses, bacteria, fungi, protists, and worms
What is a pathogen
100
The smallest and most common unicellular microorgnisms that lack a nucleus.
What are prokaryotes
100
The main cause of genetic variation
What is mutation
100
The communication system that controls and coordinates functions throughout the body and responds to internal and external stimuli.
What is the nervous system
200
Viruses that infect bacteria
What is a bacteriophage
200
A compound that kills bacteria without harming cells of the human or animal hosts.
What is an antibiotic?
200
bacilli, cocci, and spirilla
What are bacteria shapes
200
This will have the strongest effect on a small population and reduces diversity.
What is genetic drift
200
The cells of the nervous systm
What is a neuron
300
When a virus enters the host cell, makes copies of itself, and causes the cell to burst open
What is a lytic infection
300
The process of fighting infection through the production of cells that inactivate foreign substances or cells.
What is immunity?
300
The two types of bacterial reproduction
What is Binary fission and conjugation
300
The characteristic that is most helpful in enabling an animal species to survive envirionmental change
What is genetic variation
300
The two states of a neuron.
What is resting and action potential
400
When a virus integrates its DNA into the host cell DNA and the viral genetic information replicates along with the host cell's DNA indefinitely
What is a lysogenic infection
400
Your body's most important nonspecific line of defense.
What is the skin?
400
Some bacteria consume organic molecules made by other organisms, whereas others make their own food from inorganic molecules
What are some ways that prokaryotes obtain energy
400
The two human systems that provide nutrients to cells
What are the digestive and circulatory system
400
Chemicals used by a neuron to transmit an impulse across a synapse.
What is a neurotransmitter
500
Causes AIDS and is a retrovirus that targets helper T cells
What is HIV
500
When a pathogen is able to get past the body's nonspecific defenses, the immune system reacts with a series of immune responces.
What are specific defenses
500
Some damage cells and tissues directly by breaking down the host's cell for food. Others release toxins that interfere with the host's normal activity.
What are two ways that bacteria cause disease
500
When organisms with favorable genetic variations tend to survive and breed successfully.