In an ecosystem, which is the most likely reason for an increase in the producer population if there is an increase in the carnivore population?
What is the main function of leaves?
Leaves provide support for growth and a place to store food.
Leaves provide a place for photosynthesis to occur.
Leaves absorb water and minerals and transport nutrients to the stem.
Leaves create a barrier that prevents water in the plant’s tissues from evaporating.
After an initial infection, B-cells recognize the measles virus. How is this helpful in human immune response?
The B-cells use this recognition to defend the body against other pathogens, such as bacteria.
The B-cells more quickly recognize and respond to any other virus that invades the body.
The B-cells produce antibodies more quickly if the measles virus is encountered again.
The B-cells transfer this recognition to T-cells, which will then devour the viruses.
North Carolina Test of Biology. Form I RELEASED Fall 2009
Go to next page