Shelter is used for protection by animals against weather, and protective, supportive environments such as shelters are needed. Given these facts, protective, supportive environments are used by animals against what among the following options: - nutrients - offspring - disease - heat - reproduction - Allergies - weather - wind
weather

Courtship is behavior that is intended to attract a mate, and for example, female birds secrete estrogen in response to the courtship of their male mates. Given these facts, what do birds secrete to attract a mate among the following options: - Energy. - Energy - fur and fat - seeds - oxygen - pollen - Estrogen - acetic acid
Estrogen

Q: Wiring requires an electrical conductor, and most metals are conductors of electricity. Given these facts, what can you use in wiring to produce current? among the following options: - two - waves - bamboo - coiled - metals - energy - tube - photons
A: metals

Question: Pathogens can cause disease, and bacterial pathogens accounted for 83 outbreaks (8,928 pathogens). Given these facts, what can cause disease among the following options: - bacteria - medicine - healthcare - Pesticides - viruses - influenza - toxins - fish
Answer: bacteria

*Question*
Air pollution harms the respiratory and circulatory systems, and air pollutants are inhaled. Given these facts, what system does inhaled pollution harm among the following options: - health - humans - the environment - circulatory - people - bones - lymphatic - cell wall
**Answer**
circulatory

(Q).
Running water is better able to dissolve oxygen and nutrients than standing water, and also, running water in rivers is the major force of erosion on the surface of the earth. Given these facts, which body of water would be able to dissolve oxygen and nutrients the best among the following options: - NaCl - Lake - Puddle - Pond - rain - CO 2 - River - sugar
(A).
River