Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, answer the question "What is something missing in starfish?" with the following options: - the body's largest organ - centralized nervous system - characteristics - layers of fat - permineralization - biological diversity - kinetic energy - A compound that donates proton
centralized nervous system

Fact 1: Muscles can only contract. Fact 2: Muscles in the upper arm called biceps are used to flex the arm. Given the two facts above, answer the question "what can only contract?" with the following options: - nerves - Epidermis - the skin - strong - biceps - Bend - lungs - forces
biceps

Q: Fact 1: Most canyons are formed by flowing rivers through erosion over long periods of time. Fact 2: Erosion is the work of wind, water, and time. Given the two facts above, answer the question "Water and time can work together to create what?" with the following options: - a wave - canyon - matter - heat - soils - mercury - iron - desert
A: canyon

Question: Fact 1: Slime molds are fungus-like protists commonly found on rotting logs and compost. Fact 2: Protists are both unicellular and eukaryotic. Given the two facts above, answer the question "What are unicellular?" with the following options: - more abundant - alveoli - bears - mice - slime molds - In their leaves - mushrooms - Most plants
Answer: slime molds

*Question*
Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, answer the question "What lacks a centralized nervous system?" with the following options: - starfish - barnacles - blowfish - our planet - humans - Pesticides - insects - sharks
**Answer**
starfish

(Question)
Fact 1: Heating salt water causes the water to evaporate while the salt remains. Fact 2: When water evaporates, salts in the water remain and become more concentrated. Given the two facts above, answer the question "What increases in concentration when water evaporates?" with the following options: - nektar - sugar - sweat - salt - potash - Gases - maples - energy
(Answer)
salt