Study guides, Class notes & Summaries

life in the sea exam questions & answers 2024/2025 Echinoderms - ANSWERS(Spiny skin) sea stars, sea urchins, brittle stars, sand dollars, sea cucumbers, crinoids pentamerous radial symmetry - ANSWERSthe body can be divided into 5 equal parts, so any one of five "slices" taken out of the organism would be equal. "sea stars, sand dollars, and sea urchins" Echinoderm larvae - ANSWERShave bilateral symmetry echinoderm adult - ANSWERSpentaradial symmetry Calcareous internal skel...

Life in the Sea Exam 2 Questions & Answers 2024/2025 Bacteriophage - ANSWERSkind of virus that infects bacteria Zooxanthellae - ANSWERSo Important dinoflagellates that live in a symbiotic relationship with coral reefs o Many of these organisms have little or no growth with zooxanthellae Algae bloom/Red tide - ANSWERSDiatoms and dinoflagellates can go through periods of rapid growth known as blooms caused by high levels of nutrients in the water and can harm organisms Chemosyntheti...

Life in the Sea Exam 2 Questions & Answers 2024/2025 Why aren't cells larger? - ANSWERSThey lose efficiency. More surface area to maintain in the cell and more biological functions to maintain throughout the cell. Limited to two factors: Surface area to volume, volume of cytoplasm the nucleus can control. Ecosystems - ANSWERSphysical and biological environment Populations - ANSWERSgroups of the same species Communities - ANSWERSpopulations of different species that interact with e...

Life in the Sea Exam 4 Questions & Answers 2024/2025 Phylum Chordata - ANSWERSvertebrates Class reptilia - ANSWERSorder squamata testudines crocodylia Order squamata - ANSWERSsea snakes (indian and pacific ocean, El Nino push towards the west of continents) marine iguanas (1 species) (endemic) (Galapagos) (indigenous) (salt glands in nose: spit water at you) True sea snakes - ANSWERSvenomous tail acts like a rudder block nostrils w/ flap when goes under water most live birth ...

Life in the sea Exam 4 Questions & Answers 2024/2025 Benthic - ANSWERSlives on the bottom Pelagic - ANSWERSSwims in the water column. Tunicate larvae or lancelet - ANSWERSFish probaly evolved by vertebral column - ANSWERSseries of bones that make up the backbone Myomeres - ANSWERSseries of muscle segments along the trunk Agnatha - ANSWERSjawless fishes (hagfish and lampreys) Lampreys - ANSWERSparasites Hagfishes - ANSWERSbenthic scavengers, eat dead and dying Anadrom...

Life in the sea exam 2 questions & answers 2024/2025 average cell size - ANSWERS5-20 micrometers why are cells small - ANSWERSmore efficient limited by two factors 1. surface area to volume 2. volume of cystomplasm the nucleus can control autotrophs - ANSWERSself feeders primary producers nutrients heterotrophs - ANSWERSeat organic material secondary producers do autotrophs or heterotrophs respirate? - ANSWERSboth population - ANSWERSSame species communities - ANSWER...

Life In The Sea Exam 3 Questions & Answers 2024/2025 Ecology - ANSWERSis the interaction between organisms and their environment Population - ANSWERSall individuals of the same species living together community - ANSWERSall populations of organisms of different species living in a defined area habitat - ANSWERSthe physical place where an organism lives Ecological niche - ANSWERSall the resources (biotic & abiotic) an organism uses for survival, growth, and reproduction Limiti...

Life in the Sea Final Exam Questions & Answers 2024/2025 PHYLUM CHORDATA Order Squamata - ANSWERSsea snakes, marine iguanas. majority in the land snakes - ANSWERSscales. high venomous snake anatomy: compressed tail modified flaps venom duct venom gland - ANSWERScompressed tail: move through water modified flaps: flaps close so water doesnt go in their body venom duct: neurotoxic venom venom gland: produce the venom marine iguanas - ANSWERSgood swimmers, eat algae, endemic...

Life in the Sea Exam 2 Questions & Answers 2024/2025 Prokaryotes have nuclei but no mitochondria or chloroplasts - ANSWERSFalse Though diffusion results in a net movement of a substance from an area of high to an area of low concentration, it is based completely on random molecular motions. - ANSWERSTrue Sperm and eggs generally have a haploid number of chromosomes. - ANSWERSTrue Most marine fishes have body fluids more dilute than seawater and thus must drink seawater to replace o...

Life in the sea exam 5 questions & answers 2024/2025 Reef - ANSWERSOrganic, calcium carbonate secerting animals and plants. Polyp - ANSWERSindividual coral, secretes protective exoskeleton of calcium carbonate called a corelate. Hermatypic - ANSWERSzooxanthellae, reef builders, colonial, shallow, tropical seas Ahermatypic - ANSWERSnon- reed building, not limited to shallow or warm water, same in polar areas. Gameate - ANSWERSMoon Asexually - ANSWERSHow do corals repoduce N...