What is the unique function of central vacuoles in a plant cell?(1 point)
Responses
they store enzymes
they store enzymes
they store pigments
they store pigments
they store ribosomes
they store ribosomes
they store water
they store water
Neurotransmitter release is an example of ________.(1 point)
Responses
autocrine signaling
autocrine signaling
cellular miscommunication
cellular miscommunication
paracrine signaling
paracrine signaling
cyclical behavior
paracrine signaling
How are new viruses made?(1 point)
Responses
sexual reproduction
sexual reproduction
asexual reproduction
asexual reproduction
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by a host cell
viral DNA or RNA copied by a host cell
How are new viruses made?(1 point)
Responses
sexual reproduction
sexual reproduction
asexual reproduction
asexual reproduction
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by a host cell
viral DNA or RNA copied by a host cell
Compare and contrast a provirus and viral DNA.(1 point)
Responses
A provirus is viral DNA incorporated into the host cell’s DNA.
A provirus is viral DNA incorporated into the host cell’s DNA.
A provirus is newly replicated viral DNA after injection.
A provirus is newly replicated viral DNA after injection.
A provirus is bacterial DNA incorporated into the viral DNA.
A provirus is bacterial DNA incorporated into the viral DNA.
A provirus is the host cell’s DNA that has been destroyed.
A provirus is viral DNA incorporated into the host cell’s DNA, while viral DNA refers to the DNA of a virus.
Why is the common cold virus difficult to cure in humans?(1 point)
Responses
It attacks white blood cells that fight off foreign bodies.
It attacks white blood cells that fight off foreign bodies.
It possesses a viral genome that mutates very quickly.
It possesses a viral genome that mutates very quickly.
It is caused by a special type of virus called a retrovirus.
It is caused by a special type of virus called a retrovirus.
It is a spherical-shaped virus with many protein receptors.
It possesses a viral genome that mutates very quickly.
The nervous system is responsible for(1 point)
Responses
exchanging gases between the body and the environment.
exchanging gases between the body and the environment.
breaking down food and extracting nutrients.
breaking down food and extracting nutrients.
defending against disease like the flu or common cold.
defending against disease like the flu or common cold.
receiving and processing stimuli from the body.
receiving and processing stimuli from the body.
Which is the function of the esophagus?(1 point)
Responses
release digestive enzymes
release digestive enzymes
connect the mouth with the stomach
connect the mouth with the stomach
receive and chew food
receive and chew food
absorb nutrients from food
connect the mouth with the stomach
Summarize the functions of the nervous system.(1 point)
Responses
The nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.
The nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.
The nervous system controls the circulatory system by sending signals to the lungs, telling them to expand and inhale oxygen.
The nervous system controls the circulatory system by sending signals to the lungs, telling them to expand and inhale oxygen.
The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs.
The nervous system controls the respiratory system by sending signals to the muscles, telling them to flex and move limbs.
The nervous system controls the muscular system by sending signals to the blood, telling it to move throughout the body.
The nervous system controls various body functions by sending signals to different organs and systems.
Alternation of generations in plants permits(1 point)
Responses
only meiosis.
only meiosis.
only mitosis.
only mitosis.
both mitosis and meiosis.
both mitosis and meiosis.
neither mitosis nor meiosis.
both mitosis and meiosis.
Unlike ferns, angiosperms use ________ to contain their embryos.(1 point)
Responses
seeds
seeds
sporangium
sporangium
pollen
pollen
spores
spores
seeds
Use the scenario to answer the question.
You observe the growth of a group of plants that have been tipped over.
How will auxin influence cell growth in the roots of these plants?
(1 point)
Responses
Auxin will build up on the upper side of the root and stimulate cell growth.
Auxin will build up on the upper side of the root and stimulate cell growth.
Auxin will build up on the lower side of the root and inhibit cell growth.
Auxin will build up on the lower side of the root and inhibit cell growth.
Auxin will build up on the lower side of the root and stimulate cell growth.
Auxin will build up on the lower side of the root and stimulate cell growth.
Auxin will build up on the upper side of the root and inhibit cell growth.