Mammals conserve body heat with their hair or fur, and basically, heat is energy. Given these facts, what kind of animals conserve energy with their hair or fur among the following options: - fur  - bears  - mammals  - sweating  - frogs  - cactus  - goats  - humans
mammals

When metal conducts heat , that metal expands, and steel is a solution of metals. Given these facts, when does steel expand among 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: Conserving water can be used for survival in a dry environment, and deserts are usually very, very dry. Given these facts, what can be used for survival in the desert among the following options: - nutrients  - shade  - food and shelter  - salt and water.  - heat  - picnics  - Conserving water  - Chemical energy
A: Conserving water

Question: Protein is used to repair cells by the human body, and dNA makes proteins, proteins build cells, and cells make up people. Given these facts, what are needed to build cells among the following options: - hormones  - food  - RNA  - isotopes  - fats  - clorophyll  - DNA  - p53
Answer: DNA

*Question*
Staying warm has a positive impact on an animal 's survival, and animals that survive develop an immunity, but are also carriers for life. Given these facts, what has a positive impact on an animal 's ability to be a carrier for life among the following options: - four limbs  - staying frosty  - staying isolated  - prolactin release  - staying warm  - staying mad  - coded genes  - organic molecules
**Answer**
staying warm

(Q).
Plants are multicellular eukaryotes with cell walls made of cellulose, and plant cell walls are composed primarily of lignin and cellulose. Given these facts, plants are multicellular eukaryotes with cell walls composed primarily of what among the following options: - protein  - plants  - leaves  - chemicals  - Energy.  - lignin  - eukaryotes  - Energy
(A).

lignin