Lungs are used for breathing air by land animals, and elephants are the largest animals on land. Given these facts, what uses lungs for breathing air among the following options: - rocks - some mammals - Frogs - monotremes - humans - bacteria - elephants - oak trees
elephants

Plant requires seed dispersal for reproduction, and through reproduction, the parents transmit genes to the offspring. Given these facts, what mechanism do plants use to produce offspring among the following options: - competition - by indirect light - circulatory systems - seed dispersal - genetic material - In chromosomes - mutations - Organic compounds
seed dispersal

Q: Cutting down trees has a negative impact on an ecosystem, and black spruce is the dominant tree species. Given these facts, what has a negative impact on the ecosystem when cut down among the following options: - humans disturb it - scarce resources - Smoking - disease - black spruce - swamp vegetation - deforestation - Pesticides
A: black spruce

Question: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote, and male gametes are called sperm. Given these facts, fertilization occurs when an egg and what join together to form a diploid zygote among the following options: - rapid expansion - testosterone - gastropod shells - penis - peachleaf willow - pollen - male hormone - male gamete
Answer: male gamete

*Question*
Fertilization takes place inside the female organism, and fatty tissue in a woman's body produces female hormones. Given these facts, where does human fertilization naturally take place among the following options: - hard shelled egg - petri dish - bushes - man - Earth - eggs - woman - orchids
**Answer**
woman

*Question*
Carbon cycles quickly between organisms and the atmosphere, and deforestation also disrupts the Carbon Cycle. Given these facts, what disrupts organisms and the atmosphere among the following options: - fog - Sulfur dioxide - light rain - fossil fuels - Pesticides - water vapor - burning coal - deforestation
**Answer**
deforestation