Which makes viral infections difficult to defend?
a.) the immune system must attack the body’...
Biology, 24.01.2020 18:31 ulilliareinhart2
Which makes viral infections difficult to defend?
a.) the immune system must attack the body’s own cells
b.) viruses are attacked by a nonspecific immune response
c.) viruses live outside of cells
d.) macrophages work slowly
Answers: 3
Biology, 21.06.2019 17:00, erieannapickett12
How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey
Answers: 2
Biology, 22.06.2019 01:30, nadiareese
Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve
Answers: 1
Biology, 22.06.2019 03:00, 21tywmeb
20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?
Answers: 2
Biology, 22.06.2019 03:50, Jeyson5852
How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided
Answers: 1
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