Zoology Study guides, Class notes & Summaries

Basics of diffusion, gradients, and how they relate - Diffusion: spontaneous movement of very small things. It requires no energy investment by the organism (other than keeping the temperature above freezing) --direction is random Gradients: top of gradient = high concentration, bottom of gradient = low concentration --diffuses high to low Basics of diffusion across a semipermeable barrier - Factors that speed up or slow down diffusion - size: smaller things diffuse faster the visco...

Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? CORRECT ANSWER it is variable, not for sure What aspect of evolution does phylogenetic systematics represent more clearly than Linnaean systematics does? CORRECT ANSWER Evolutionary history Non-amniotes CORRECT ANSWER lay eggs in water Hagfishes and lampreys: CORRECT ANSWER Myxiniformes and Petromyzontiformes (Agnathans) Sharks, rays, and ratfishes, cartilaginous fishes: CO...

Amniotic Egg CORRECT ANSWER A shelled, water-retaining egg that enables reptiles, birds, and egg-laying mammals to complete their life cycles on dry land Fenestration CORRECT ANSWER The introduction of fenestrae (small holes in glomerular capillary walls that filter out fluid) in some amniotes Amniota CORRECT ANSWER higher vertebrates (reptiles, birds and mammals) possessing an amnion during development Basilisk Lizard CORRECT ANSWER An Amniota species that has the ability to run across...

Solutions Manual For Zoology 10th Edition by Stephen Miller , John Harley 7273, 4.

ZOOLOGY- Reproductive System Questions And Answers A+ Review Asexual reproduction - Correct Answer->without sexual interaction. Absence of fertilization Sexual reproduction - Correct Answer->A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents Internal Fertilization - Correct Answer->transfer sperm from male to female by a special structure External fertilization - Correct Answer->releas...

Which statement from the list below does not apply to leptotyphloid snakes A. fossorial B. represent the ancestral fossorial condition for snakes C. small size, no more than 20cms D. do not have traces of the pelvic girdle E. live everywhere CORRECT ANSWER D. do not have traces of the pelvic girdle Which animals from the list below are Archosaurians? A. caiman B. alligator C. eagle D. tuatara E. All except D CORRECT ANSWER E. All except D From figure 1 you can conclude the f...

Zoology CORRECT ANSWER The branch of biology that deals with animals and animal life. Includes structure, behavior, physiology, development and classification of animals Hemichordates CORRECT ANSWER Acorn worms and pterobranchs. Have gill pores, dorsal hollow nerve cord, notochord, buccal diverticulum, open circulatory system and unique glomerulus. Classes enteropreusta and pterobranchia Chordates CORRECT ANSWER Have a notochord, a dorsal hollow nerve cord, post-anal tail and pharynx with ...

Phylum Porifera - name classes (taxonomy) - ANSWER-Demospongia, Calcarea, Hexactinellida, (Homoscleromorpha) Key characteristics (overall): Life cycle/reproduction - ANSWER--monoecious - asexual (by budding / gemmules) - sexual (eggs / sperm) free-swimming flagellated larvae Key characteristics (overall): Anatomy - ANSWER--asconoid (basic) : -Syconoid -lueconoid (complex) Key characteristics (overall): Basic Body plan - ANSWER-- Tissue: no true tissue (incipient) - symmetry: none - gu...