input with options: Fact 1: Cartilage is a tough tissue that contains a protein called collagen. Fact 2: Collagen contributes to meat toughness. Given the two facts above, what can a certain protein affect in meat?
OPTIONS:
- health
- piousness
- stamina
- retina
- toughness
- liveliness
- saltiness
- Energy
output: toughness

Q: Fact 1: Chromosomes are coiled structures made of DNA and proteins. Fact 2: Chromosomes are made up of DNA and histone proteins. Given the two facts above, what are part of chromosomes?

OPTIONS:
- Chemical energy
- color of leaves
- sensory neurons
- the body's largest organ
- Most plants
- histone proteins
- keeps the organism warm
- more abundant

A: histone proteins

input: OPTIONS:
- Summer
- body
- state
- skin
- H 2 O
- HIV
- life
- humans Now, answer this question: Fact 1: Thyroid hormones increase the rate of metabolism in cells throughout the body. Fact 2: Thyroxine, a thyroid hormone, is an aryl iodide. Given the two facts above, thyroxine increases the rate of metabolism in cells throughout the what?
A:
output: body

Fact 1: Thick fur can be used for keeping warm. Fact 2: Most mammals have hair, or fur, covering their body. Given the two facts above, most mammals have a body what for keeping warm?

OPTIONS:
- four limbs
- exoskeleton
- warm
- scales
- sweating
- covering
- bareness
- opening

Answer: covering

Problem: OPTIONS:
- pollen
- cytoplasm
- litter
- chromosomes
- Plants growth
- Most plants
- mitochondria
- nucleus
Q: Fact 1: DNA is found in chromosomes. Fact 2: DNA condenses to form chromosomes. Given the two facts above, what does compressed genetic material form?
Answer: chromosomes

Fact 1: Endocrine hormones travel throughout the body in the blood. Fact 2: Hormones are the chemical messengers of the body's endocrine system. Given the two facts above, what travels throughout the body in the blood?

OPTIONS:
- chemical messengers
- carbon monoxide
- Veins and arteries.
- bacterial messengers
- density
- kinetic energy
- electromagnetic energy
- matter vibrating

Answer:
chemical messengers