If electrical current running through a wire can damage the insulation or cause a fire, then electrical current running through a wire can damage the insulation or what? Answer choices: - an object - energy barrier - humans disturb it - cause electrical conditioning - cause a fire - critical organs - cause hair conditioning - cause new lines
cause a fire

If the protein keratin helps to insulate and protect the body, then what helps to insulate and protect the body? Answer choices: - tail fins - Animal fur - fur seals - keratin - nitrogen - snow - Epidermis - poultry
keratin

Q: If male dogs use semiochemicals in urine to mark their territory, then what uses semiochemicals in urine to mark territory? Answer choices: - koalas - bacteria - humans - dogs - bears - cats - the Sun - rabbit
A: dogs

Question: If cell division leads to organisms growth, then what causes growth in organisms? Answer choices: - cell isolation - cell division - Chemical energy - Plant reproduction - burning coal - glucose - hormones - cell separation
Answer: cell division

*Question*
If coral is turned to sand by mechanical weathering, then what action produces much of the sand from coral? Answer choices: - reef building - radioactive decay - mechanical waves - glass blowing - It used to be covered by water - The area was once underwater - Mechanical weathering - By coral exoskeletons
**Answer**
Mechanical weathering

(Question)
If some animals have no vertebrae, then what do some animals not have? Answer choices: - nucleus - fish - offspring - vertebrae - Chlorophyll - invertebrates - Energy - Energy.
(Answer)
vertebrae