Fact 1: Echinoderms lack respiratory and excretory systems. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, answer the question "_ lack respiratory and excretory systems." with the following options: - graptolites - insects - ferns - barnacles - fossil fuels - Allergies - starfish - parasites
starfish

Fact 1: If an object is in the sunlight then that object will absorb solar energy. Fact 2: An object's color determines how much solar energy it absorbs. Given the two facts above, answer the question "an objects color determines how much it is affected by what" with the following options: - electrically - perspiration - Light - forces - temperature - sunlight - photons - absorption
sunlight

Q: Fact 1: Sand dunes are formed by the wind transporting and depositing sand. Fact 2: Aeolian erosion of sand in the desert is partially responsible for the formation of sand dunes. Given the two facts above, answer the question "What are factors in the creation of formations in the desert?" with the following options: - scattered light - the pyramids - global warming - Physical weathering - salinity - tombs - Sahara - wind and erosion
A: wind and erosion

Question: Fact 1: Most fungi get organic compounds from dead organisms. Fact 2: Fungi are heterotrophs that utilize organic matter. Given the two facts above, answer the question "What uses organic compounds from dead organisms?" with the following options: - fossil fuels - swamp vegetation - peachleaf willow - Cooking - it needs them - Heterotrophs - agriculture - Most plants
Answer: Heterotrophs

*Question*
Fact 1: Gametes then unite in fertilization and form a diploid zygote. Fact 2: Zygotes are diploid and undergo cell division to become an embryo. Given the two facts above, answer the question "Gametes then unite in fertilization and eventually become what?" with the following options: - embryo - baby blanket - Flowers - offspring - plants - seeds - fertile - internal mass
**Answer**
embryo

Q: Fact 1: Air pollution harms the respiratory and circulatory systems. Fact 2: Incinerated mercury pollutes the air. Given the two facts above, answer the question "What harms the respiratory and circulatory systems?" with the following options: - Greenhouse gasses - burning coal - inoculation - incinerated mercury - fossil fuels - water vapor - Sulfur dioxide - air
A: incinerated mercury