multicellular embryo

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• Embryo — An embryo (from Greek: Polytonic|ἔμβρυον , plural Polytonic|ἔμβρυα , lit. that which grows, from en in + bryein to swell, be full ) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division… …   Wikipedia

• embryo — /em bree oh /, n., pl. embryos, adj. n. 1. the young of a viviparous animal, esp. of a mammal, in the early stages of development within the womb, in humans up to the end of the second month. Cf. fetus. 2. Bot. the rudimentary plant usually… …   Universalium

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• gastrula — gastrular, adj. /gas troo leuh/, n., pl. gastrulas, gastrulae / lee /. Embryol. a metazoan embryo in an early state of germ layer formation following the blastula stage, consisting of a cuplike body of two layers of cells, the ectoderm and… …   Universalium

• cleavage — noun Date: 1816 1. a. the quality of a crystallized substance or rock of splitting along definite planes; also the occurrence of such splitting b. a fragment (as of a diamond) obtained by splitting 2. the action of cleaving …   New Collegiate Dictionary

• Philip A. Beachy — Philip A. Beachy, Ph.D., is a professor of developmental biology at Stanford University in Palo Alto, California. He received his Ph.D. in biochemistry from Stanford University, and has been an investigator of the Howard Hughes Medical Institute… …   Wikipedia

• cleavage — 1. Series of mitotic cell divisions occurring in the ovum immediately following its fertilization. SYN: segmentation (2). SEE ALSO: c. division. 2. Splitting of a complex molecule into two or more simpler molecules. SYN: scission (2). 3 …   Medical dictionary

• cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… …   Universalium

• angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium