Think of it like this. Horses do a LOT of galloping, which is hard on the feet! Hooves are a physical ADAPTATION, so that the horses won't experience pain on their journeys. They're hard, so that the horses don't feel the ground nearly as much. Now, mountain goats travel over rough terrain, with sharp rocks and steep inclines. Again, it's really easy for them to get hurt strutting around the mountains, so they evolved hard hooves to protect their feet.
Answer:
Symbiosis is any type of interaction between two different species of living things in the same environment. A predator-prey relationship is between two animal species —one kills and eats the other. ... Commensalism is an interaction benefiting one organism, and neither benefiting nor harming the other.
Explanation:
A theory is a hypothesis that someone had but has not proven it.
A law is something that is proved.
Example: Sir Issac Newton had a theory on gravity he sat under a tree and then had a conclusion.
Answer: Option D
Explanation:
Once the pathogen enters the body, it starts dividing and after a certain period of time the patients experience some sign and symptoms of illness.
The prodromal period occurs just after the incubation period. In this phase the pathogen keeps on dividing and the host begins to experience general symptoms and signs of illness.
This is a result of the activation of immune system of the body which results in the swelling, pain, soreness.
I'm not entirely sure, but I think it is B) the pulley.
