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37 Cards in this Set
- Front
- Back
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pollination |
The transfer of a pollen grain to the egg-producing part of the plant. |
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pollen |
Powdery grains in a flower that contain its male sex cells. |
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embryo |
A developing organism that results from fertilization. |
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seed coat |
The outer covering of a seed. |
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germination |
The development of a seed into a new plant. |
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monocot |
An angiosperm with one cotyledon in each seed. |
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dicot |
An angiosperm with two cotyledons in each seed. |
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conifer |
Any of a group gymnosperms that produces seeds in cones, and has needle-like leaves. |
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metamorphosis |
A series of distinct growth stages that are different from each other. |
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complete metamorphosis |
A series of FOUR distinct growth stages. |
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larva |
An immature stage in complete metamorphosis, where the organism does not look like the adult. |
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pupa |
A non-feeding stage in complete metamorphosis in which a hard case-like cocoon surrounds the organism. |
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incomplete metamorphosis |
A series of THREE growth stages that happen slowly. |
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nymph |
A stage of incomplete metamorphosis, where the organism looks like the adult form, but is smaller. |
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external fertilization |
The process in which sperm and egg cells come together OUTSIDE the female's body. |
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internal fertilization |
The joining of sperm and egg cells INSIDE a female's body. |
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asymmetrical |
CanNOT be divided into mirror images. |
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radial symmetry |
A body plan in which all body parts of an organism are arranged around a central point. |
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monotreme |
A mammal that lays eggs. |
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marsupial |
A mammal in which the female has a pouch where offspring develop after birth. |
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placental mammal |
A mammal whose young develop within the mother. |
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ecosystem |
All the living and nonliving things in an environment, including their interactions with each other. |
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population |
All the members of one species in an area. |
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community |
All the living things in an ecosystem. |
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food chain |
The path that energy and nutrients follow in an ecosystem |
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food web |
The overlapping food chains in an ecosystem. |
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predator |
An animal that hunts other animals for food. |
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prey |
A living thing that is hunted for food. |
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energy pyramid |
A diagram that shows the amount of energy available at each level of an ecosystem. |
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limiting factor |
anything that controls the growth or survival of a population. |
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carrying capacity |
the maximum population size that an ecosystem can support. |
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habitat |
the place where a plant or animal lives and grows. |
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niche |
the role of an organism in an ecosystem. |
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symbiosis |
a relationship between two kinds of organisms over time. |
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mutualism |
a relationship between 2 kinds of organisms that benefits both. |
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commensalism |
a relationship between 2 kinds of organisms that benefits one, but does not harm the other one. |
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parasitism |
a relationship between 2 kinds of organisms that benefits one and harms the other. |
