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Topic 4: Vocabulary

QuestionAnswer
Asexual reproduction A reproductive process that involves only one parent and produces offspring that are genetically identical to the parent.
Sexual reproduction Two parents combine their genetic material to produce a new organism which differs from both parents.
Fertilization An egg cell and a sperm cell joining to form a new cell.
Trait A specific characteristic that an organism can pass to its offspring through its genes.
Gene A sequence of DNA that determines a trait and it passed from parent to offspring.
Inheritance The process by which an offspring receives genes from its parents.
Pollination The process of transferring pollen from male reproductive structures to female reproductive structures in plants.
Cones The reproductive structures of gymnosperms.
Ovule The plant structure holding the egg cell.
Fruit The ripened ovary and other structures of an angiosperm enclosing one or more seeds.
Germination The sprouting of an embryo out of a seed.
Behavior The way an organism reacts to changes in its internal conditions or external environment.
Instinct A response to a stimulus that is inborn and that an animal performs correctly the first time.
Pheromone A chemical released by one animal that affects the behavior of another animal of the same species.
Mating system The behavior patterns related to how animals mate.
Migration The regular, seasonal journey of an animal from one place to another and back again.
Hormone Chemicals that affect growth and development.
Tropism A plant’s growth response toward or away from a stimulus.
Dormancy A period when an organism’s growth or activity stops.
Metamorphosis Major body changes as an organism grows and develops.
Created by: mrsbaert
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