Ecology
Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called
Decomposers
How much blood does the human body contain?
4-6 L
Inherited from ancestor species that has limited to no function over time.
Vestigial Structures
All viruses consist of (2)
RNA or DNA, and a protein coat (capsid)
Oxygen and carbon dioxide diffuse in and out of the leaf through the structure called
stomata
The greatest number of individuals that an area can sustain over the long term is called...
carrying capacity
What is the function of neurotransmitters?
Transmit nerve impuses across the synapse
According to Darwin's theory of natural selection, the individuals that tend to survive are those that have
variations best suited for their environment
Why do some viruses seem to go away and then return late, like shingles?
The virus has entered the lysogenic cycle
In an angiosperm, pollen grains are produced in the
Anther
An increase in the Earth's average temperature from the buildup of carbon dioxide and other gases in the atmosphere is called
Global Warming
A student's ability to think about questions and answer it correctly is directly controlled by the (which part of the brain)
Cerebrum
Charles Darwin made many observations on
Galapagos Island
If a person has memory B cells against a certain pathogen, the person is (i.e. why are memory b cells important?)
much less likely to develop the disease a second time
If the xylem in a plant were damaged, what process would be most affected?
transport of water and minerals
According to Darwin's theory of natural selection, the individuals that tend to survive are those that have
variations best suited to their environment
Which structure connects the spinal cord to the brain and controls blood pressure, heart rate, breathing and swallowing?
brain stem
biological features that serve similar functions in different species but evolved independently, not from a shared ancestor
what is analogous structure
Why are antibiotics ineffective against viruses?
Antibiotics are for bacteria, not viruses
The ability for a plant to adapt to their enviornment
What are tropisms?
What is a limiting factor
The enzyme found in saliva
What is amylase
Charles Darwin’s phrase for evolution, meaning that species change over time, inheriting traits from their ancestors while undergoing modifications
What is Decent with modification
If helper T cells were destroyed, which immune response would be most affected?
B cells and T Cells
What is xylem and phloem