Answer:
Adrian's adaptive immune system remembered the antigens from the virus. so he becomes immune to it.
Explanation:
Answer:
3. B, D
Explanation:
A primary source is an animal that eats only plants. (herbivore) A secondary source is an animal that only eats herbivores (carnivores)
B has birds; which are food for carnivores, and fruits, nuts, and blossoms; which are food for herbivores.
D has vegetables and grains; which are food for herbivores, and meat; which is food for carnivores
The other options have only food for carnivores, or only food for herbivores, so the answer is 3
There are thousands of bacterial species and they are not identical towards one another, therefore there forms are quite unique. so its just there characteristics that make up how bacteria look like.
Hope this answers your question.
Answer:
cell wall provides protection and structural support
Standard precautions
N-95 tuberculosis standard
Blood-borne pathogen standard
Resource Conservation and Recovery Act - requires labeling, storage, transportation, and disposal of biological waste according to fedral standards. .-.
