Fact 1: Endocrine hormones travel throughout the body in the blood. Fact 2: Deficiencies in the Endocrine System are another source of impotence. Given the two facts above, answer the question "Lack of what in the blood can lead to impotence? " with the following options: - hormones - hemoglobin - oxygen - iron - Energy. - t-cells - competition - Energy
hormones

Fact 1: Biofuel is used to produce electricity by burning. Fact 2: Wood and straw are both examples of biofuels. Given the two facts above, answer the question "What is used to produce electricity by burning?" with the following options: - carbon - Oak - light - coal - fish - food - wood - oil
wood

Q: Fact 1: Heat can change the state of matter. Fact 2: An increase of heat is an increase of randomity in matter. Given the two facts above, answer the question "what does temperature change in matter?" with the following options: - Water expanding - Evaporation - it's state - hardness - kinetic energy - porosity - energy - brittleness
A: it's state

Question: Fact 1: Amphibians have permeable skin that easily absorbs substances from the environment. Fact 2: All frogs are amphibians. Given the two facts above, answer the question "What has permeable skin?" with the following options: - goats - alligators - animals - apples - frogs - sharks - humans - snakes
Answer: frogs

*Question*
Fact 1: If an object is made of a material then that object has the properties of that material. Fact 2: Standard knife blade material is heat treated stainless steel. Given the two facts above, answer the question "What does an object made of stainless steel have the properties of?" with the following options: - heat energy - swords - stainless steel - kinetic energy - ice - solid, liquid, gas - sharpness - mechanical
**Answer**
stainless steel

(Q).
Fact 1: Plants release oxygen during the day but not during the night. Fact 2: Another kind of plant is the fishhook cactus. Given the two facts above, answer the question "What does the fishhook cactus release during the day but not during the night." with the following options: - heat - Air - water - carbon monoxide - carbon dioxide - oxygen - Energy. - Energy
(A).
oxygen