Sound can be used for communication by animals, and for mating, communication is between individuals of the same organism. Given these facts, what do animals use to find a mate among the following options: - desire - sound - saliva - humans - Light - DNA - zoos - gametes
sound

Agraduated cylinder is used to measure volume of a liquid, and liquid volume is measured using a unit called a liter. Given these facts, which unit could a graduated cylinder measure in among the following options: - salinity - Grams - Liters - Centimeters - Dilution - solutes - Amperes - two
Liters

Q: Cross-pollination increases genetic diversity, and cross Pollination Cross pollination is the gene flow between similar species of plants. Given these facts, what happens with the gene flow between similar species of plants among the following options: - Genetic diversity is increased - sperm and egg fuse - basic building blocks of life - The gene flow dies - biological diversity - Genetic diversity is decreased - It helps them survive - The plant dies
A: Genetic diversity is increased

Question: Mutation creates new genetic variation in a gene pool, and genetic variation is the basis for natural selection. Given these facts, what is the basis for natural selection among the following options: - hydrogen - root growth - weathering - animals - artificial intelligence - mutation - trees - competition
Answer: mutation

*Question*
Birds evolved from a group of bipedal dinosaurs called theropods, and like most theropods, the pelvis is propubic. Given these facts, what do birds have among the following options: - sensory neurons - They have thick fur - fur and fat - food and shelter - four limbs - important habitats - They have webbed feet - Propubic pelvis
**Answer**
Propubic pelvis

*Question*
The gravitational pull of the Moon on Earth 's oceans causes the tides, and tides are the rising and falling of ocean's water. Given these facts, the gravitational pull of the Moon on Earth 's oceans causes water to what among the following options: - vaporization - mouth of rivers - fall down a hole - rise and fall - Condensation - sink into the crust - disappear forever - It gets heated up
**Answer**
rise and fall