30 Objectives for Exam #1: Describe and complete a monohybrid (âone traitâ) cross of corn kernel color, including three generations (P, F1, and F2). Define the following genetics terms: dominant, recessive, genotype, phenotype, gene/allele, homozygous, and heterozygous.
Size-wise, the Trident is a little larger than a Microsoft Xbox One or a Sony PlayStation 4. The 13.6x9.2-inch chassis is easy to fit on a shelf or in a TV cabinet, as itâs just 2.8 inches tall when lying down.
At the base of the tentacles is the mouth. Smaller animals which blunder into the tentacles are stung and paralyzed and drawn into the mouth. Most species of hydra are less than 0.6 inches (15 mm) in length, not including the tentacles, and are inconspicuous. Both column and tentacles are highly contractile and, by expelling gastrovascular fluid from the mouth, a hydra can shrink to a fraction of its previous volume.