Chapter 9 (2nd semester) Flashcards
Bacteria
Microscopic, single-celled organisms.
Broad-Leafed
Having a net-like pattern of veins in the leaves.
Catkin
Slim, cylindrical flower cluster, with inconspicuous or no petals, usually wind-pollinated.
Chlorotic
Lack green color; without chlorophyll.
Cotyledon
Embryonic leaves that serve as food-storing organs or develop into photosynthetic structure as the seed germinates. Sometimes referred to as button.
Energy
Capacity for doing work and for overcoming inertia.
Fungi
Microscopic plants that lack chlorophyll and conductive tissues.
Head
A compact mass of flowers at the top of a stem.
Inflorescence
Groups of flowers arising from a single stem.
Invertebrate
Signifies animals without backbones (no vertebrae).
Larvae
The active immature form of an insect.
Metamorphosis
In an insect or amphibian, the process of transformation from an immature form to an adult form in two or more distinct stages.
Mollusks
An invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.
Molt
Shed old feathers, hair, or skin, or an old shell, to make way for a new growth.
Narrow-leafed
Grasses, sedges, rushes and cattails, which all have parallel veins in their leaves.
Nematodes
Large and diverse group of microscopic non-segmented worms that occur in many habitats, but are especially numerous in soil.
Panicle
Loose, branching cluster of flowers, as in oats.
Pathogen
Biologic agent (i.e., bacteria, virus, protozoa, nematode) that may produce disease or illness.
Pupa
Inactive immature form of an insect.
Raceme
A flower cluster with the separate flowers attached by short equal stalks at equal distances along a central stem.
Segmentation
Parts of an insect body.
Spike
A flower head made up of a central stem with the flowers growing directly on it.
Umbel
Type of inflorescence.
Vertebrate
Signifies animals with backbones (vertebrae).
