Ques:Q: What are the earliest and simplest vertebrates? Choices: - whales - birds - bears - fish A:

Ans:fish
-----
Ques:Q: The epidermis is made of which closely packed cells? Choices: - cancer cells - nerve cells - muscle cells - epithelial cells A:

Ans:epithelial cells
-----
Ques:Q: What secures teeth in the mouth? Choices: - plug - muscles - cartilage - socket A:

Ans:socket
-----
Ques:Q: What is pluto now called? Choices: - asteroid - planet - meteor - dwarf planet A:

Ans:
dwarf planet
-----