Fact 1: Mammals conserve body heat with their hair or fur.  Fact 2: Basically, heat is energy.  Given the two facts above, answer the question "What kind of animals conserve energy with their hair or fur?" with the following options:  - fur  - bears  - mammals  - sweating  - frogs  - cactus  - goats  - humans
mammals
Fact 1: When metal conducts heat , that metal expands.  Fact 2: Steel is a solution of metals.  Given the two facts above, answer the question "When does steel expand?" with the following options:  - matter vibrating  - when it loses heat  - It gets heated up  - flow of electrons  - when it transfers heat away  - recovery time from fatigue  - when it conducts heat  - when it cools down
when it conducts heat
Q: Fact 1: Conserving water can be used for survival in a dry environment.  Fact 2: Deserts are usually very, very dry.  Given the two facts above, answer the question "What can be used for survival in the desert?" with the following options:  - nutrients  - shade  - food and shelter  - salt and water.  - heat  - picnics  - Conserving water  - Chemical energy
A: Conserving water
Question: Fact 1: Protein is used to repair cells by the human body.  Fact 2: DNA makes proteins, proteins build cells, and cells make up people.  Given the two facts above, answer the question "What are needed to build cells?" with the following options:  - hormones  - food  - RNA  - isotopes  - fats  - clorophyll  - DNA  - p53
Answer: DNA
*Question*
Fact 1: Staying warm has a positive impact on an animal 's survival.  Fact 2: Animals that survive develop an immunity, but are also carriers for life.  Given the two facts above, answer the question "what has a positive impact on an animal 's ability to be a carrier for life?" with the following options:  - four limbs  - staying frosty  - staying isolated  - prolactin release  - staying warm  - staying mad  - coded genes  - organic molecules
**Answer**
staying warm
(Q).
Fact 1: Plants are multicellular eukaryotes with cell walls made of cellulose.  Fact 2: Plant cell walls are composed primarily of lignin and cellulose.  Given the two facts above, answer the question "Plants are multicellular eukaryotes with cell walls composed primarily of what?" with the following options:  - protein  - plants  - leaves  - chemicals  - Energy.  - lignin  - eukaryotes  - Energy
(A).

lignin