Answer:
pathogens
Explanation:
pathogens may occur in various way e.g spread from a person to person by directly body contact
I think the hydra lacks the specialized cells for touch and chemical detection. On the other hand earthworms have touch, light, vibration and chemical receptors along the entire body surface. Both of them are invertebrates (those animals without a backbone), they include insects, worms, jelly fish, spiders among other animals.
Answer:
Answer B.
Explanation:
Biological Fitness, also called darwinian fitness, means the ability to survive to reproductive age, find a mate, and produce offspring. basically, the more offspring an organism produces during its lifetime, the greater its biological fitness.
Answer:
true
Explanation:
soil=plants humans need these for food
minerals= help body growth
rock= home base of minerals and used for homes sometimes