Which of these is not a factor that influences animal growth?

• inherited diseases

• gravitational force

• genetic information

• availability of food

Which behavior most directly increases reproductive success in animals?

• A male ostrich performs a dance to attract females

• A male penguin keeps an egg warm for two months

• A female butterfly flaps her wings to reject a courting male

• A bird pretends to have a broken wing to lure away predators

Which parenting behavior does not increase the probability that offspring will survive?

• producing milk to feed young

• guarding young from predators

• protecting young from cold weather

• abandoning young before eggs are hatched

Which of these best describes successful animal behaviors?

• They are only instinctive and genetic

• They are influenced by genes and experience

• They are beneficial for survival and reproduction

• They involve thinking, reasoning, and problem solving

Which of these is a courting behavior that can increase a male's probability of reproductive success?

• A male gorilla displays strength and vocalizations to females

• A group of birds flies to a new location with more food resources

• A chimpanzee learns to use a tool by watching another chimpanzee

• Male and female robins sit on their eggs to keep them warm until they hatch

Which of these behaviors is most likely to result in an organism attracting a mate?

• A dog urinates on fire hydrants and several trees

• A bird decorates its nest with colorful forest items

• An adult teaches its offspring how to eat scorpions

• A sea turtle lays large quantities of eggs deep in the sand

Heavier female black bears produce more offspring. Which statement describes a genetic factor that might negatively affect a female black bear's reproductive success?

• Binocular vision gives the bear excellent depth perception

• The bear can digest fruits easily, but has difficulty digesting fats

• Powerful legs allow the bear to chase prey at speeds up to 30 miles per hour

• Long, curved claws help the bear climb tree trunks and dig open insect mounds

Which is the process of cell division that is associated with sexual reproduction in animals?

• Mitosis

  Mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei. Cell division by mitosis is an equational division which gives rise to genetically identical cells in which the total number of chromosomes is maintained

• Prophase

  The first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears. The first prophase of meiosis includes the reduction division

• Meiosis

  Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, the sperm or egg cells. It involves two rounds of division that ultimately result in four cells, each with only one copy of each chromosome

These are examples of what kind reproduction?

Flatworms can divide into two halves, and each half grows into a separate worm.

• When echinoderms such as sea stars lose an appendage, the appendage forms a new individual.

• Some reptiles, insects, and fish are also capable of developing from unfertilized eggs.

• In cnidarians a new individual can bud from an existing individual

• Asexual Reproduction

• Sexual Reproduction

• None of these are correct

A zoologist is comparing animals that reproduce asexually with those that reproduce sexually. What is sexual reproduction? What is the major advantage of sexual reproduction?