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Biology U4A

Across
Refers to grown or mature organisms.
A group of organisms attached to one another after undergoing asexual reproduction from a common parent.
An act of fertilization involving the transfer of cell contents to another cell. Conjugation usually occurs in simpler organisms.
An organ in simpler plants that produces sperm cells.
Forms the ends of the spindle fibers in the cell during mitosis. It is normally found in animal cells.
Something which lives in or pertains to water. An aquatic organism lives in water.
Refers to the appearance of buds or roots from tissue which is not bud or root tissue. Adventitious roots appear from stem or leaf tissue, and adventitious buds appear in root tissue.
The part of the stamen of a flower that bears the pollen.
A short, solid, enlarged underground stem used for food storage and for asexual reproduction.
Discreet units of chromatin which appear during cell division. Each species has a fixed number of chromosomes.
The stage of mitosis when the chromosomes move to opposite ends of the cell.
Down
The collective term for the sepals.
A kind of asexual reproduction involving the growth of a new individual from part of an older organism.
A plant structure with enlarged leaf bases and stored food surrounding a central bit of fleshy stem tissue.
Material in the cell nucleus carrying hereditary information. It is made up of DNA and various kinds of protein.
The condition of having gametes similar in shape, but different in size.
A row of specialized cells around the sporangium of most ferns. It plays a role in opening the sporangium and releasing spores.
An organ in lower vascular plants, gymnosperms, mosses, and liverworts which produces an egg cell.
Part of a chromosome which attaches to the spindle apparatus during mitosis or meiosis.
The condition of having anisogametes.