Vet study unit 7 lab: 1. Where and when did Ebola first show evidence of infecting humans?

2. What is a reservoir host? In this particular example, which animal is most likely the reservoir host?

3. How does a human get the virus?4

4. What do scientists believe drives the evolution of zoonotic diseases such as Ebola?

5. How does Ebola compare to other potential zoonotic diseases, like SARS coronavirus, bird flu, or MERSA?

6. Do you believe humans can do anything to stop the development of zoonotic diseases or contain their spread? Explain your reasoning.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.

answercells,tissues,organs,organ,system-organism;

levels of biological organization; organism,population,community,ecosystem,biome,biosphere,

hope this .good luck

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.