Ques: Soil is formed by rocks eroding, and soils are formed by breakdown of rock. Given these facts, what does rock erosion cause them to do among the following options: - turn gaseous  - secrete h2o  - breakdown  - become hydrogen  - they bend  - dangerous  - migrate  - watershred
Ans: breakdown

Ques: Female gametophytes produce eggs inside the ovaries of flowers, and currently the state flower is the peony, which originates in China. Given these facts, female what produce eggs inside the ovaries of peonies among the following options: - gametophytes  - Plant reproduction  - honeybees  - peachleaf willow  - insects  - fertile  - orchids  - graptolites
Ans: gametophytes

Ques: An animal requires air for survival, and air is primarily oxygen and nitrogen. Given these facts, what does an animal require for survival among the following options: - layer of body fat under skin  - A compound that donates proton  - Molecular kinetic energy  - mineral particles and organics  - a complete digestive system  - converting food to energy  - keeping food fresh for long periods of time  - Something made primarily of oxygen and nitrogen
Ans: Something made primarily of oxygen and nitrogen

Ques: Amphibians have permeable skin that easily absorbs substances from the environment, and all frogs are amphibians. Given these facts, what feature allows frogs to absorb substances from the environment among the following options: - four limbs  - poison dart frog  - hydrate their cells  - permeable skin  - layers of fat  - a cuticle  - predators  - double eyelid
Ans:
permeable skin