Alexander’s army was alert because they

1. had stood guard all night

2. expected a night attack

3. were poorly fed and tired

4. were well fed and rested

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

hello

question:

when would a new household be started?

a.when the oldest male died

b.when a man and a woman married

c.when the house could not hold everyone

d.when a child was born

answer: us d when a child was born

hope this have a great day and brainlest