Behaviors Aid Reproduction - Middle School Life Science
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Which behavior best increases fertilization success in species with external fertilization?
Which behavior best increases fertilization success in species with external fertilization?
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Synchronized release of eggs and sperm. Timing ensures sperm meets eggs in water before dispersal.
Synchronized release of eggs and sperm. Timing ensures sperm meets eggs in water before dispersal.
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Identify the reproductive advantage of territorial behavior during breeding season.
Identify the reproductive advantage of territorial behavior during breeding season.
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Secures resources and space that attract mates or support offspring. Good territories show male quality and provide nesting sites.
Secures resources and space that attract mates or support offspring. Good territories show male quality and provide nesting sites.
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What is a mating call used for in many animals?
What is a mating call used for in many animals?
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To attract mates and signal species identity and readiness. Sound travels far and helps same-species recognition.
To attract mates and signal species identity and readiness. Sound travels far and helps same-species recognition.
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What is nest building as a reproductive behavior?
What is nest building as a reproductive behavior?
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Constructing a safe place for eggs or young. Provides shelter and protection for vulnerable offspring.
Constructing a safe place for eggs or young. Provides shelter and protection for vulnerable offspring.
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What is parental care?
What is parental care?
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Actions by parents that increase offspring survival. Feeding, protecting, and teaching help young reach maturity.
Actions by parents that increase offspring survival. Feeding, protecting, and teaching help young reach maturity.
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Which behavior most directly increases offspring survival after birth: parental care or molting?
Which behavior most directly increases offspring survival after birth: parental care or molting?
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Parental care. Care directly helps young survive; molting is growth-related.
Parental care. Care directly helps young survive; molting is growth-related.
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What is incubation behavior in animals that lay eggs?
What is incubation behavior in animals that lay eggs?
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Keeping eggs warm and protected until hatching. Body heat and protection ensure successful egg development.
Keeping eggs warm and protected until hatching. Body heat and protection ensure successful egg development.
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What is mate guarding?
What is mate guarding?
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Staying with a mate to reduce mating with rivals. Prevents other males from fertilizing the female's eggs.
Staying with a mate to reduce mating with rivals. Prevents other males from fertilizing the female's eggs.
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What is a pheromone in the context of reproduction?
What is a pheromone in the context of reproduction?
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A chemical signal that attracts mates or signals reproductive status. Airborne molecules trigger mating behaviors in receivers.
A chemical signal that attracts mates or signals reproductive status. Airborne molecules trigger mating behaviors in receivers.
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Which behavior reduces the chance of mating with the wrong species?
Which behavior reduces the chance of mating with the wrong species?
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Species-specific courtship signals. Prevents hybrid offspring that may be less fit.
Species-specific courtship signals. Prevents hybrid offspring that may be less fit.
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Identify the term for animals mating only during a specific time of year.
Identify the term for animals mating only during a specific time of year.
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Seasonal breeding. Ensures offspring born when resources are most abundant.
Seasonal breeding. Ensures offspring born when resources are most abundant.
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What is nest building most likely to increase in reproduction?
What is nest building most likely to increase in reproduction?
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Offspring survival by protecting eggs or young. Safe location reduces predation and environmental threats.
Offspring survival by protecting eggs or young. Safe location reduces predation and environmental threats.
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Identify the behavior where an animal migrates to a breeding ground to reproduce.
Identify the behavior where an animal migrates to a breeding ground to reproduce.
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Breeding migration. Ensures access to optimal breeding habitat and conditions.
Breeding migration. Ensures access to optimal breeding habitat and conditions.
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Which behavior directly helps offspring survive by providing food, warmth, or protection?
Which behavior directly helps offspring survive by providing food, warmth, or protection?
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Parental care. Increases offspring survival rates through active investment.
Parental care. Increases offspring survival rates through active investment.
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Which behavior most directly prevents eggs from drying out in many amphibians and fish?
Which behavior most directly prevents eggs from drying out in many amphibians and fish?
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Choosing moist, protected egg-laying sites. Maintains proper moisture for egg development and hatching.
Choosing moist, protected egg-laying sites. Maintains proper moisture for egg development and hatching.
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Identify the term for one male mating with many females in a breeding group.
Identify the term for one male mating with many females in a breeding group.
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Polygyny. Maximizes male reproductive output with multiple partners.
Polygyny. Maximizes male reproductive output with multiple partners.
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Which behavior best increases offspring survival in herd or flock species?
Which behavior best increases offspring survival in herd or flock species?
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Group living that provides protection for young. Many eyes detect predators; dilution effect protects individuals.
Group living that provides protection for young. Many eyes detect predators; dilution effect protects individuals.
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What is mate choice (sexual selection by choice)?
What is mate choice (sexual selection by choice)?
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Selecting a mate based on traits that signal fitness or quality. Females often choose males with best genes or resources.
Selecting a mate based on traits that signal fitness or quality. Females often choose males with best genes or resources.
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Identify the term for males fighting or displaying to win access to mates.
Identify the term for males fighting or displaying to win access to mates.
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Male-male competition. Winners gain exclusive mating rights with females.
Male-male competition. Winners gain exclusive mating rights with females.
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What is a courtship display in animals?
What is a courtship display in animals?
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A behavior used to attract a mate and increase mating success. Shows fitness through elaborate visual, auditory, or behavioral signals.
A behavior used to attract a mate and increase mating success. Shows fitness through elaborate visual, auditory, or behavioral signals.
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Which behavior most increases reproductive success in animals whose young need long care?
Which behavior most increases reproductive success in animals whose young need long care?
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Forming pair bonds and sharing parental care. Two parents can better feed and protect dependent young.
Forming pair bonds and sharing parental care. Two parents can better feed and protect dependent young.
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Identify the term for a pair bond where two parents cooperate to raise young.
Identify the term for a pair bond where two parents cooperate to raise young.
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Monogamy (pair bonding). Both parents investing doubles offspring care quality.
Monogamy (pair bonding). Both parents investing doubles offspring care quality.
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What is territorial behavior, and how can it support reproduction?
What is territorial behavior, and how can it support reproduction?
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Defending an area to secure mates and resources. Protects breeding sites and resources needed for raising young.
Defending an area to secure mates and resources. Protects breeding sites and resources needed for raising young.
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What is a lek, and what reproductive behavior occurs there?
What is a lek, and what reproductive behavior occurs there?
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A display area where males court and females choose. Males compete through displays while females select mates.
A display area where males court and females choose. Males compete through displays while females select mates.
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What is synchronized spawning, and why does it increase reproductive success?
What is synchronized spawning, and why does it increase reproductive success?
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Many release eggs and sperm together to boost fertilization. Timing increases chances gametes meet in water.
Many release eggs and sperm together to boost fertilization. Timing increases chances gametes meet in water.
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