Answer: Usually age unless its level of fitness but that's kind of vague
Explanation:
So I would say age in moderation because if you have like a 20 year old and a 17 year old doing exercise I don't think there will be a big heat exertion illness getting them down but if your health teachers annoying and is talking about a 18 year old exercising with an 87 year old than its definitely level of fitness
First marriage is dat they have da same mother and father and step marriage is dat they don't have da same parents
Answer:
You make a letter or be supportive about it and try to talk to them about it and tell them you care
Explanation:
Answer:
natural ammunity
Explanation:
immunity possessed by a species or race that is present in an individual at birth prior to exposure to a pathogen or antigen.
Answer:
yes
Explanation:
it is cause by climate change it is sometimes called omnicide