Q: You are presented with the quiz "Immunodeficiency occurs when the immune system is what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "immunodeficiency occurs when the immune system is not working properly" and "work items are broken down by year of effort". So, what's the best answer to the question?

OPTIONS:
- dangerous
- homogenous
- healthy
- broken down
- reduce
- perfect
- It decreases
- functioning

A: broken down
input: OPTIONS:
- genetic diversity
- density
- animals with backbones
- volume
- haploid plants
- gravity
- hydrogen and oxygen
- white eye color Now, answer this question: You are presented with the quiz "crossing two living things with what will cause their offspring to have it?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "crossing two living things with recessive traits causes their offspring to have that recessive trait" and "white eye color is a recessive trait". So, what's the best answer to the question?
A:
output: white eye color
You are presented with the quiz "what cannot surive without oxygen" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cells cannot survive without oxygen" and "cells are the basic building blocks of life". So, what's the best answer to the question?

OPTIONS:
- basic building blocks of life
- Microscopic organisms
- an area swollen with pus
- incapable of regurgitation
- hydrogen
- vacuum
- outer space
- the respiratory system

Answer: basic building blocks of life
Problem: OPTIONS:
- bark
- sand
- damage
- bees
- leaves
- growth
- nektar
- vines
Q: You are presented with the quiz "Most modern gymnosperms are trees covered in what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most modern gymnosperms are trees with woody trunks" and "woody plants such as trees and shrubs have stiff stems or trunks covered in bark". So, what's the best answer to the question?
Answer: bark
Problem:OPTIONS:
- sharks
- pan
- frogs
- Man
- Birds
- alpacas
- salmon
- a fish

You are presented with the quiz "What has a relatively complex circulatory system with a three-chambered heart?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "amphibians have a relatively complex circulatory system with a three-chambered heart" and "all frogs are amphibians". So, what's the best answer to the question?
****
A: frogs
Problem:OPTIONS:
- Pollution
- bacteria
- cows
- horses
- illness
- pathogens
- influenza
- chickenpox

You are presented with the quiz "What can cause Mad Cow?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "pathogens can cause disease" and "mad Cow disease is a concern". So, what's the best answer to the question?
****
A:
pathogens