Ejaculation occurs when muscle contractions propel sperm from the epididymes, and male gametes are called sperm. Given these facts, what occurs when muscles contract and propel male gametes among the following options: - fertilization - sex - ejaculation - electrically - rapid expansion - motion - competition - intercourse
ejaculation

Creating wood-free paper does not require cutting down trees, and to cut down a tree is like destroying a life. Given these facts, creating wood-free paper does not require doing what among the following options: - deforestation - destroying trees - Dehydration - kill them - killing insects - Pollution - competing for resources - to move people
destroying trees

Q: Female gametophytes produce eggs inside the ovaries of flowers, and flower buds appear in the growing tip of the plant. Given these facts, where do female gametophytes produce eggs among the following options: - peachleaf willow - The bottom of plants - Earth orbiting the Sun - The middle of plants - the environment - underground - The tips of plants - plant reproduction
A: The tips of plants

Question: Freezing causes a solid to form, and when water molecules inside the cell freeze, they occupy a larger space. Given these facts, when water molecules expand, what do they begin to form among the following options: - milk - vapor - gas - solid - calcite - matter - rocks - lipids
Answer: solid

*Question*
Cartilage is a tough tissue that contains a protein called collagen, and membranes attached to the cricoid cartilage . Given these facts, what does cricoid contain among the following options: - Bodily water - cellulum - cellulite - Energy - hydrocarbons - cellulose - cellular - layers of fat
**Answer**
cellulose

Q: Air pollution harms the respiratory and circulatory systems, and exposure to ozone can diminish lung function and increase susceptibility to respiratory infection. Given these facts, which type of pollution is most harmful to lungs among the following options: - Lead - air - Cars - oil - acid - CFCs - SO2 - mold
A: air