Problem:OPTIONS:
- teeth
- disease
- thoughts
- rabies
- viruses
- seeds
- vibrations
- A virus

You are presented with the quiz "What stuck to animal fur can spread?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if seeds stick to the fur of an animal then that seed will be transported by the animal" and "seed pods and seeds can be transported by floodwater or eaten by animals and spread in their manure". So, what's the best answer to the question?
****
A: seeds

Problem:OPTIONS:
- growth
- death
- fusion
- earth
- life
- rocks
- stones
- tumor

You are presented with the quiz "What is not possible without ribosomes?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "ribosomes are structures in the cytoplasm where proteins are made" and "life without protein is impossible". So, what's the best answer to the question?
****
A: life

Problem:OPTIONS:
- Energy.
- antibiotics
- Energy
- separation
- nerves
- apoptosis
- soccer leagues
- Plants growth

You are presented with the quiz "What kicks in after a certain number of divisions?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cells are programmed to divide only a set number of times" and "apoptosis is programed cell death". So, what's the best answer to the question?
****
A: apoptosis

Problem:OPTIONS:
- O2
- DNA
- comets
- air
- Aves
- ocean
- satellites
- lung

You are presented with the quiz "Carbon cycles quickly between organisms and" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "carbon cycles quickly between organisms and the atmosphere" and "atmosphere is the blanket of air around the earth". So, what's the best answer to the question?
****
A:
air