Angiosperms
A flowering plant, which forms seeds inside a protective chamber called an ovary.
Animalia
Animals are a major group of multicellular organisms, of the kingdom Animalia or metazoa.
animal starch
One form in which body is fuel is stored; stored primarily in the liver and broken down into
glucose when needed by the body.
Anisogamous
A union between two gametes that differ in size of form.
Anion
A negatively charged ion.
Anklebones
The bone in the ankle that articulates with the leg bones to form the ankle joint
Annual
A plant that completes its entire life cycle in a single year or growing season.
Antennae
Long, paired sensory appendages on the head of many arthropods.
Anterior
Referring to the head end of a bilaterally symmetrical animal.
Anther
The terminal pollen sac of a stamen, inside which pollen grains with male gametes form in
the flower of an angiosperm.
Antheridium
In plants, the male gametangium, a moist chamber in which gametes develop.
Anthocyanin
Natural water-soluble pigments of blue, purple or red which are dissolved in the cell-sap
vacuole of plant cells.
Anthropoid
A higher primate; includes monkeys, apes, and humans.
Antibiotic
A chemical that kills bacteria or inhibits their growth.
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