Lophotrochozoa - Study guides, Revision notes & Summaries

WSU Biology 106 Exam 3 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES |ALREADY GRADED A+ Arthropods - ANSWER- Phyla with greatest amount of diversity with 85% of animal spp 700 million years ago - ANSWER- When the first animals originated Porifera (sponges) - ANSWER- Phyla with no tissues, muscles, nerves, or specialized organs Choanocytes - ANSWER- Flow of water and food acquisition in sponges Amoebocytes - ANSWER- Found in sponges, these cells are mobile and perform numerou...

Which of the following is not an observation or inference on which natural selection is based? a. There is heritable variation among individuals. b. Poorly adapted individuals never produce offspring. c. Species produce more offspring than the environment can support. d. Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less well suited. e. Only a fraction of an individual's offspring may survive. - b. ...

Which of the following is not an observation or inference on which natural selection is based? a. There is heritable variation among individuals. b. Poorly adapted individuals never produce offspring. c. Species produce more offspring than the environment can support. d. Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less well suited. e. Only a fraction of an individual's offspring may survive. - b. ...

smallest unit that has all of the characteristics of life - ANSWER-cell nutrient molecules are used to build cellular structures or for energy. this best represents which characteristic of life? - ANSWER-living things acquire materials and energy from the environment organs are composed of tissues, which are composed of cells. this is an example of which characteristic of life? - ANSWER-living things have levels of hierarchical organization which statement concerning reproduction is fal...

Apoplastic route ▪ Through cell walls and extracellular spaces Symplastic route ▪ Through the cytosol Transmembrane route ▪ Across cell walls - ANSWER name and describe the three routes of transport within a plant Membrane potential is established through pumping H+ by proton pumps (Animals - movement of Na+ by Na+ K+ pumps) - ANSWER Explain how membrane potential is established in plant plasma membranes -active transport and passive transport -osmosis - ANSWER Describe the...

BIO 182 Exam 4 Questions Correctly Answered What are some commone characteristics of animals? - answermulticellular heterotrophs lack of cell walls nervous tissue sexual reproduction Hox genes What life cycle does all animal show? - answergametic What are the likely ancestors of animals? - answerchaonoflagellates protists What are 3 major features to classify animals? - answer1. presence or absense of different tissue types 2. type of body symmetry 3. specific features of embryonic d...

BIO 182 Exam 4 NAU Questions Correctly Answered Be familiar with the common characteristics of animals. - answer- Multicellular heterotrophs - cells lack cell walls -most have nerves, muscles, and capacity to move at some point in the life cycle - able to reproduce sexually - specialized sensory structures and nervous system - cells exist in extensive extracellular matrix - unique cell junctions What type of life cycle do all animals show? - answergametic What is the most likely ancest...

Be familiar with the common characteristics of animals. - Multicellular heterotrophs - cells lack cell walls -most have nerves, muscles, and capacity to move at some point in the life cycle - able to reproduce sexually - specialized sensory structures and nervous system - cells exist in extensive extracellular matrix - unique cell junctions What type of life cycle do all animals show? gametic What is the most likely ancestor of animals? choanoflagellates What are the 3 major features th...

Be familiar with the common characteristics of animals. - Multicellular heterotrophs - cells lack cell walls -most have nerves, muscles, and capacity to move at some point in the life cycle - able to reproduce sexually - specialized sensory structures and nervous system - cells exist in extensive extracellular matrix - unique cell junctions What type of life cycle do all animals show? gametic What is the most likely ancestor of animals? choanoflagellates What are the 3 major features th...

Invertebrates️️Animals without a backbone. About 95% of known animal species. Calcarea and Silicea️️phylum that includes sponges; no symmetry, tissues, body cavity, organs, nervous system; basal animals; mostly marine; contain spicules; most are hermaphrodites; free-swimming during larval stage and sessile (non motile) as adults; suspension/filter feeders Suspention feeders️️small and large organisms that use filtering and trapping techniques to collect minute food particles su...