The wall of the alveolus is composed of which type of epithelium

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.