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What is the purpose of male tern or male spider gift-giving during courtship?
To attract a mate by offering food or wrapped prey; gifts can increase mating success
The lesson says some traits are influenced by both genetics and environment. Give the example used.
Animal weight is determined by genes and the animal’s diet (environment).
hat two broad categories of factors affect how animals grow, as stated in the lesson?
genetic and environmental factors
Why is it often difficult to predict traits of animals, according to the lesson?
Because many factors (genetic, environmental, and interactions between them) influence growth, making traits the result of complex and sometimes unknown causes.
Give an example from the lesson of a trait determined mainly by genetics and a trait influenced by the environment.
Genetics: fur type (straight, curly, wiry). Environment: obedience (training/diet). (Also weight is influenced by both.)
What term describes behaviors that develop through experience or practice?
learned behavior
How does herding help offspring survive?
Herding keeps offspring together and safe so they are not left behind and reduces vulnerability to predators.
What term describes behaviors an animal is born with that do not require learning?
innate behaviors
Give two examples of display competition behaviors used by males to attract females from the lesson.
answers can vary
What chemical signals, released by some animals to attract mates, can be detected miles away by moths and butterflies?
pheromones
Describe how sensory input leads to behavior
Sensory receptors detect stimuli (smell of pheromones, sight of displays, sound of mating songs) and send signals that lead to immediate behavioral responses (approaching a mate, performing courtship displays) — e.g., moths detecting pheromones or dogs sniffing their environment.
Free question: you get skittles
YAY
A ____________________ is the way an organism reacts to other organisms or to its environment
behavior
Why are many insects’ behaviors mainly innate according to the lesson?
Because insects have short life spans and need automatic behaviors (finding food, mates, avoiding danger) early in life without learning.
Name one nonchemical way animals communicate to attract mates that uses sound.
mating songs
What behavior do elephants perform to help care for young that is mentioned in the lesson?
They take turns watching over each other’s babies
Explain how courtship behaviors increase the probability of successful reproduction
Courtship behaviors help animals communicate readiness and quality as mates (through displays, songs, pheromones, gifts), which increases the chance of finding a compatible mate and therefore increases probability of successful reproduction.
Name one structure many animals build to protect their eggs or young.
nests or dens
Give two examples of protective group behaviors
Musk oxen circling young with horns out; bison forming two circles (females inside, males outside).
Provide one example of an innate behavior and one example of a learned behavior
Innate: tadpoles know how to swim at hatching (or moths attracted to light, cricket chirping). Learned: birds learning to fly through practice (or nesting/location attachment like sea turtles returning to birth beach).