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Answer: In Exercises 712, write an equation for the linear function satisfying the given

Precalculus: Graphical, Numerical, Algebraic | 8th Edition | ISBN: 9780321656933 | Authors: Franklin Demana, Bert K. Waits, Gregory D. Foley, Daniel Kennedy, Dave Bock ISBN: 9780321656933 190

Solution for problem 2.1.1.20 Chapter 2.1

Precalculus: Graphical, Numerical, Algebraic | 8th Edition

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Precalculus: Graphical, Numerical, Algebraic | 8th Edition | ISBN: 9780321656933 | Authors: Franklin Demana, Bert K. Waits, Gregory D. Foley, Daniel Kennedy, Dave Bock

Precalculus: Graphical, Numerical, Algebraic | 8th Edition

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Problem 2.1.1.20

In Exercises 712, write an equation for the linear function satisfying the given conditions. Graph y = 1x2.112 = 2 and 152 = 7

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● Class Anthozoa (coral, sea anemones) ○ Solitary colonial polyps ○ Feeding tentacles ­ actively catching prey ○ Most sessile polyps are filter feeders ○ Grow in nutrient poor water ■ Sunlight doesn’t penetrate deep enough to make food ○ Mutualistic relationship with dinoflagellates (Dinoflagellates make food and coral provide shelter) ­ zooxanthellae ○ Secrete exoskeleton of CaCO3 (Upward growth, dead skeleton is left behind below ■ Whitening ­ buildup of CaCO3 and the dinoflagellates die off in the coral reefs, O2 become too high and coral cannot withstand it → kicks out dinoflagellates → less efficient food capture ■ Reefs are important because they are a home for many different aquatic species (nursery­type environments), barrier for turbulent water on shores ● Class Cubozoa (Box Jellyfish) ○ Box­shaped medusae ○ Most are only few centimeters, can be fatal to humans ● Class Hydrozoa (Hydroids) ○ Both polyp and medusa stages ○ Colonial polyps ○ Only class with freshwater species ○ Hydra ■ Solitary polyp, no medusa ■ Can regenerate themselves ● Scyphozoa (Jellyfish) ○ Transparent/translucent body ○ Dominant medusa stage ○ Muscular ring around bell margin ● Bilaterian Acoelomates ○ Characterized by bilateral symmetry ■ Allows cell specialization ○ Traditionally classified by coelom type ■ Acoelomates ■ Pseudocoelomates ■ Coelomates ● Phylum Platyhelminthes (Flatworms) ○ Soft­bodied, small and cross­eyed eyespot ○ Platy (flat), 1mm­many meters long ○ Many parasitic, others free­living ○ Marine, freshwater and scavenger ○ Move with ciliated epithelial cell, have developed musculoskeletal system ● Body Type ○ Have a protruding pharynx (ingests food and excretes waste through this opening ■ Pharynx in the center of the body ○ Went from a dorsal → ventral nervous system ○ Have circular (worm becomes longer when contracted) and longitudinal (worms become shorter when contracted) muscles ○ Have bilateral ventral nerve cords ● Phylum Platyhelminthes: Digestion ○ Movement of food = movement of the worm (fluids inside worm move as the worm moves and moves food through digestive system) ○ Blind gut with ventral opening ■ Some extracellular digestion ■ Cells that line guts phagocytose food bits ○ Tapeworms ○ Well known for their regenerative abilities ○ Turbellaria ­ free living platyhelminthes ■ Planaria ○ Neodermata ­ parasitic platyhelminthes ■ endo/ectoparasites ■ Trematoda (flukes), Cercomeromorpha (tapeworms) ○ Trematoda ­ 1mm­8cm ■ Attaches to host with hooks anchors or suckers ■ Most life cycles have multiple hosts ■ Oriental liver flukes (goes through three animals to go through life cycle! Releases lots and lots of offspring as a result of this risky lifestyle) ● Individual flukes can live 15­30 yrs in the liver ● Typically asymptomatic ● Heavy infestation ­ cirrhosis and death ■ Blood flukes ● Affects 1 in 20 people worldwide ● Live in blood vessels associated with intestine/bladder ● Worms coat themselves with host’s own antigens ■ Tapeworms ● Attaches themselves to intestinal wall by hooks ● Pseudocoelomates ○ Possesses a pseudocoel (cavity between mesoderm and endoderm) ○ Phylum Nematoda (Nematodes) ■ Has complete digestive system ■ Have separate sexes (not all are like this) Chapter 34: Coelomate Invertebrates ● General Characteristics ○ Body design: ■ Repositions body fluids (better circulatory system) ■ Allows development of complex tissues and organs to develop (the circulatory system can distribute resources wherever they are needed in the body) ■ Larger body size (result of above two reasons) ○ Coeloms evolved once during animal evolution ● Phylum Mollusca ○ Second in diversity and number after arthropods ○ Wide variety of sizes and body forms ○ Mostly marine ○ Include snails, slugs, clams, octopuses and others ○ Body Plan ■ Digestive system ● Radula ­ protrusion that grasps things off substrates that stick out of mouth ● Mantle cavitiy ­ where excretion occurs gonads leave the body ● Nephridium ­ removes nitrigenous wastes from the animals (excretion and osmoregulation) ● Dorsal mantle (bivalves don’t have this) ­ epidermal structure that makes the shells (pearls are made here) ● Ventral nerve cords are bilateral and run through the foot and the body ● Visceral mass ­ contains many of the organs ● Open circulatory system ● Complete digestive system ● True coelomates (contains many of the organ systems), used as a hydrostatic skeleton ○ Believed to be reduced in some mollusks ■ Bilateral symmetry ■ Do not have heads ■ Pump hemolymph throughout the body ○ Reproduction ■ Most have internal fertilization and marine mollusks have external fertilization ■ Typically have spiral cleavage ■ Free­swimming larval stage (trochophores) ­ movement is good for the species ● Class Gastropoda (Snails and slugs) ○ Nudibranchs (Sea Slugs) ● Class Bivalvia ● Class Cephalopoda ● Archaeplastida ○ Rhodophyta (red algae), Chlorophyta (green algae), and land plants ○ Means ‘organisms with chloroplasts’ ○ Red Algae (Rhodo ‘red’ + phyta ‘plant’) ■ Large variety ■ Most multicellular, some unicellular ■ No flagella + centrioles ■ Attached to substrates, non­motile ■ Photoautotrophs (undergo photosynthesis) ● Have both chlorophyll a and b ■ Haplodiplontic life cycle ○ Green Algae (Chlorophyta) + Charophyta (sister group of land plants) ■ One single ancestor (Chlamydomonas reinhardtii ­ see slide 9 of Mar 21 lecture slides for life cycle) ■ Unicellular ■ Flagellated or non­motile ■ Photoautotrophs ■ Asexual/sexual reproduction (haplodiplontic life cycle ­ haploid and diploid are both mulitcellular) ■ Freshwater and marine habitats ■ Colonial and cell specialization occurs ­ multicellularity arose from this attribute (volvox) ○ Thought to have come about via endosymbiosis ● Rhizaria ○ Pseudopods ­ used for locomotion (streams of cytoplasm around organism) ○ Was a common group for organisms that didn’t fit in any other category ○ Radiolaria and Cercozoa have shell­like structure made out of silica ○ Phylum Foraminifera ■ CaCO3 (calcium carbonate) structures ■ Unicellular ■ Alternate between asexual and sexual reproduction (diploid → haploid generations) ■ Heterotrophic ■ Marine habitat ■ Tests (fossilized foraminifera) ­ limestone and solid calcium carbonate ● Amoebas (Phylum Rhizopoda) ○ Unicellular ○ Move with pseudopodia ○ Heterotrophs ○ Asexual reproduction ○ Freshwater, marine and soil environments ○ Plasmodial Slime Molds ■ Hemitrichia serpula (pretzel slime molds) ­ moves to different food sources ● As is becomes larger it takes up more space and consume more food ■ Unicellular but multinucleate (largest unicellular organism ■ Move as streaming plasmodium ■ Heterotrophs ■ Sexual reproduction (moving cytoplasm during feeding phase, form sporangia when food/moisture is in short supply) ■ Dark moist terrestrial environments ○ Cellular Slime Molds ■ Unicellular, multicellular during life cycle ■ Move as amoebas (unicellular) and slugs (multicellular) ■ Heterotrophs ■ Asexual/sexual reproduction ● Asexual ­ Amoeba → Slug (mobile motile group of amoebas that form when resources are scarce) → Sporocarp (fruiting body) formed by slug → spores released → form new amoebas ● Sexual ­ 2 haploid amoebas fuse → meiosis → mitosis → new amoebas ■ Dark moist terrestrial environments ● Opisthokonta ○ Class Choanoflagellates (‘collared flagella’) ■ Unicellular, colonial ■ Single flagella surrounded by funnel­shaped contractile collar (feed on bacteria with this collar) ■ Heterotrophs ■ Asexual reproduction ■ Freshwater, marine environments ■ Believed to be common ancestor of all animals Chapter 33: Overview of Animal Diversity ● General Animal Features (evolutionary Innovations) ○ Heterotrophs (herbivores, carnivores, omnivdetritivore​­ gets nutrients from dead organic material i.e. dead animals or plants, scavengers) ○ Multicellular ■ Protists are grouped into unicellular ○ Cells lack cell wal​xtracellular matr​(collection of molecules that help with surrounding cells’ structural and biochemical support) ■ Protists also have these characteristics ○ Active movement ■ Parazoa (sponges), barnacles, sea anemones are animals that don’t move (sessile) ○ Diverse in forms and habitats ■ More invertebrates than vertebrates ■ 35­40 phyla ranging from land ­ marine animals (marine, freshwater, then land for biggest → smallest phyla) ○ Sexual reproduction ■ Genetic diversity + no alternation of generations (no haplodiplontic lifecycle) ○ Characteristic embryonic development ■ Blastula (hollow ball of cells) → Gastrula (hollow ball with forming indentation that begins digestive system development in organism) ■ Cleavage ­ cell divisions during the embryonic cell stage ■ Tissue layer setup is different for different species (most animals have three cell layers) ○ Cells organized into tissues (except sponges) ■ Muscle/neuronal tissues = animals only ● 1 ­ Animals exhibit radial/bilateral symmetry ○ Symmetry ■ Radial symmetry ­ sections split around a central axis, able to be bisected into two equal halves on any 2D plane ● Jellyfish ● Most Cnidaria, Echinodermata have radial symmetry ■ Bilateral symmetry ­ can be split in half along a Sagittal plane ● All Bilateria have bilateral symmetry ○ Dorsal ­ top ○ Ventral ­ belly ○ Anterior ­ frontal ○ Posterior ­ rear­end ○ Sagittal ­ Plane where the organism can be cut in two equal halves ● Two advantages ○ Greater mobility ○ Anterior cephalizatio​­ evolution where animal has a definite brain area which controls their forward movement and other bodily functions ● 2 ­ Evolution of tissues allowed for specialized structures and functions ○ During animal’s embryonic development, cells differentiate to take on special functions ○ Differentiation allows organ formation and cell specialization ■ Usually irreversible ■ Sponges can dedifferentiate their tissues to make other tissues ● 3 ­ A body cavity makes development of organ systems possible ○ Bilateria embryos = triploblastic ■ Ectoderm ­ body coverings (skin), nervous system ■ Mesoderm ­ skeleton and muscle, heart, kidney, blood ■ Endoderm ­ digestive organs, intestines ○ Blastula ­ hollow ball of cells ○ Cnidarians (jellyfish) ­ diblastic (lack organs) ■ Don’t have a proper cavity for organ support ○ Sponges have no germ layers ● Body cavity ­ a cavity used to support internal structures of an animal (organs, systems, fluids, gases, etc) ○ Filled with liquid/gas ■ Distributes food, waste, hormones throughout the animal ○ Hydrostatic skeleton ­ filled with liquid, makes the cavity rigid because of the pressure ○ Acoelomates ­ no body cavity (other than digestive cavity) ■ Planaria ■ Do not confuse digestive system for coelom! ○ Pseudocoelomates ○ Coelomates ­ body cavity entirely within a mesoderm ■ Basically every other animal ○ Traditional systematics ­ acoelomates → pseudocoelomates → coelomates ○ Modern systematics ■ Coeloms → evolved multiple times → pseudocoelomates → secondarily lost → acoelomates ● Deuterostomes ­ sea cucumbers, starfish ● Protostomes ­ every other animal (including us!) ● Clade ­ a group of animals from a single common ancestor and its descendants ○ Can pseudocoelomic be a defining characteristic of a clade ■ It would be difficult because they were derived secondarily from animals with a coelom and grouping everything that is pseudocoelomic wouldn’t be effective/correct ● 4 ­ Bilaterians have two main development types ­ deuterostome + protostome ○ Basically when the mouth forms ○ Protostome ­ mouth forms first (Chordates) ■ Most bilateria ■ Anus forms later ■ Cleavage ­ spiral (spiralia) ■ Determinate (cell specialization is determined early on in development) ■ Coelom forms from direct splitting of mesoderm ○ Deuterostome ­ mouth forms later (every other animal) ■ Blastopore develops anus first (Frogs) ■ Cleavage ­ radial ■ Indeterminate (neighboring cells are communicating and they end up forming based on what the organism needs) ■ Coelom forms indirectly from the archenteron ● 5 ­ Segmentation ○ Occurs early in development ○ Linear array of compartments that look alike in the embryo ○ Underlies body organization in morphologically complex animals ○ Segments ­ somites ○ Two advantages ■ Allows redundant organ systems in animals (i.e. annelids) ● This is an advantage because if you have redundant parts, loosing one part won’t affect you at all ■ More efficient and flexible movement because each segment can move semi­independently ● Metazoans ­ multicellular animals ○ Divided into 35­40 phyla ○ Originally classified by anatomy and embryonically ○ Now being classified genomically Chapter 26: Taxonomy ● Class → Order → Family → Genus → Species ● Mnemonics ○ Kevin’s Poor Cow Only Feels Good Sometimes ○ King Philip Came Over For Good Soup ● Water bears! ● All animals are monophyletic (comes from one ancestor) → all animals are a clade ● Systemic classification uses morphological/molecular characteristics that are assumed to have evolved only once ○ Animals that share a certain characteristic = related more closely to an animal not showing that feature ■ Can not be related because they may have come from different ancestors ○ Clade = animals with a shared derived characteristic = taxonomic group with all the descendants tracing back to a common ancestor ○ Phylogenetic tree = hierarchy of nested clades ○ Paraphyletic = a single ancestor is included BUT not all descendants (see dinosaur tree in textbook) ■ Grouped based on their physical characteristics ○ Polyphyletic = most recent common ancestor of all members is NOT included in the group ● Tissues + symmetry are the two main characteristics that differentiate Parazoa and Eumetazoa ○ Parazoa = no symmetry/tissues ■ Porifera (sponges) ○ Eumetazoa = have tissues/sponges ■ Diploblastic (two germ layers) ­ radial symmetry (Cnidarian) ■ Triploblastic (three germ layers) ­ bilateral symmetry (Except some Echinoderms) ● Coelom type (different coelom types) ● Development type ­ deuterostome vs. protostome ● Major reclassification of protostomes ○ New molecular phylogenies revealed a new change in protostome classification ○ Annelids/Arthropods = traditionally thought to be closely related based on similar segmentation characteristic (bilateral) ■ Molecular data shows that they belong in different clades ■ Segmentation = evolved more than once during evolution ● Protostomes now grouped into Ecdysozoa and Spiralia ○ Ecdysozoa ■ Molting animals ­ they grow out of each life cycle stage (shed outer skin) ■ Evolved once ■ Nematodes + arthropods ○ Spiralia ■ Grow by gradual addition of body mass ■ Mainly aquatic ■ Ciliated/muscle induced movement ■ 2 major phyla = Lophotrochozoa + Platyzoa ■ Platyzoa ● Acoelomic ­ No body cavity ● Tiny and flat ● Ciliated movement ● Platyhelminthe​ flatworm ■ Lophotrochozoa ● 2 major phyla = Mollusks, annelids + several smaller groups ● Muscle contractile movement ● Most have trochophore larvae + lophophore feeding apparatus ● Bryozoa ● Brachipods ○ Zoa ­ ‘animal’ Chapter 33: Noncoelomate Invertebrates ● Parazoa, phylum Porifera (sponges) ­ ‘Bearing pores’ ○ Marine and freshwater habitats ○ Range from few mm ­ 2m in diameter ○ Mostly sessile in adult life, larval sponges are free swimming ○ Chemicals used to repel predators ○ Complex multicellularity ­ various cells for different functions (ie. reproductive functions, skeletal structures, etc.) ○ Adult sponge has three layers (epidermis, choanocytes, endoskeletal cells with spicules and spongin) ■ Beating of ciliated choanocytes = constant pumping of water through osculum (body cavity) by pores (ostia) ■ Filter feeders ■ Pores have epithelial cells that keep irritants out (irritated pores can close off, individual control) ○ No nervous system but can respond to environment ○ Have the ability to dedifferentiate into a new sponge when broken ○ Mesohyl ­ gelatinous, protein­rich matrix that strengthens the sponge body through spicules and spongin fibers ■ Spicule and spongins secreted by amoeboid cells in mesohyl ○ Reproduction ■ Asexual ­ fragmentation ■ Sexual ­ egg and sperm ● Hermaphroditic ● Eggs in mesohyl ● Sperm (sometimes eggs) ­ transformed choanocytes ● Develop in the mesohyl and released after larvae develop ■ Larvae ● Ciliated swimming → settle down on substrate → transform into sessile adults ● Eumetazoa ○ Animals with distinct tissues and true symmetry ○ Embryos with distinct layers (ectoderm, mesoderm, endoderm) ■ Radiata (Cnidaria) ■ Bilateria ­ all other animals ● Cnidaria ○ Mainly marine ○ No organs, distinct tissues ○ Neural network (no concentration of neural tissue) ■ Beginning of nervous system ○ Carnivorous ■ Tentacles ○ No other complete organ system ○ Can capture larger prey ■ Gastrodermis = stomach skin → digests prey after stinging it with tentacles → gastrovascular cavity is where digestion happens → holds water to make it rigid with hydrostatic skeleton → excretes through epidermis ○ Have a sessile polyp and motile medusa life cycle stages ○ Fertilization → Free­swimming larvae (planula) → settles + starts new colony → polyp → asexual reproduction through reproductive polyp → release small medusa → grow and become mature → sexual reproduction → release zygote ■ Gonochoric ­ separate sexes (usually applies to medusae) ○ Nematocysts ­ microscopic stinging capsules ■ Used for food acquisition/defense ■ Contains small but powerful point ■ Can contain venom (sometimes toxic, most of the time only mildly irritating to humans ■ Nematoblasts can only be used once (but each tentacle has thousands of these cells) Chapter 29: Protists ­ The Very First ● Eukaryotes ○ Have nuclei + other organelles ○ Compartmentalization/specialization ­ most important evolutionary concept ■ Bacteria → organelles → tissues → organs ■ Anytime a certain group of cells is specialized to perform a certain function, those cells begin to devote all their energy to performing that function alone ■ No need to keep general cells ■ Cell training ○ Cytoskeleton ■ Actin filaments, microtubules, etc. ■ Allows cell to dynamically change it’s shape ○ Eukaryotic fossils traced up to 1.5 MYA ○ Prokaryotic cell → cell becomes larger → cytoskeleton develops → cell membrane becomes flexible → folded inwards to protect DNA → nucleus develops + separates from main body (Golgi and ERs also may have been made this way) ● Eukaryotic Origins: Endosymbiosis ○ Endo = in ○ Two things living together + helping one another ○ Believed that mito and chloroplasts were derived from organisms engulfing other organisms (aerobic/photosynthetic bacterium) and eventually turning into organelles ○ Called primary endosymbiosis (secondary symbiosis also may have occurred) ● Endosymbiotic Theory Proofs ○ Endosymbiosis still occurs (red algae → brown algae) ○ Mito and Chloroplasts have their own DNA (circular and encode things necessary to their functions alone) ○ Over time, genes initially in the nucleus in the bacteria was taken in was lost and eventually the nuclear DNA took over ○ They encode their own genes (occurs with antibiotics inhibiting cell translation) ○ Binary fission occurs in mitochondria and chloroplasts ● Protista ­ eukaryotes that aren’t fungi, plants or animals ○ Unicellular, colonial, multicellular groups (200,000 different forms) ○ Grouped into 6 supergroups ■ Understanding this is the key to understanding the key to the evolution of plants, fungi and animals ● General Biology of Protists ○ Cell Surface ■ Cytoskeleton, plasma membrane with extracellular matrix (ECM) ■ Number of organisms form​ysts​ dormant cell with resistant outer covering ■ Proteins on plasma membrane ● Fibronectin ● Integrin ● Collagen ● Proteoglycan ● Elastin ○ Locomotion ■ 3 primary ways ○ Nutrition ■ Phototrophs = light photosynthesis ■ Heterotrophs ● Phagotrophs ● Osmotrophs ■ Mixotrophs ­ both hetero/autotrophic ○ Reproduction ■ Usually asexual, sometimes sexual (only under stress) ● Obligate phase ­ when it is necessary/essential for survival ● Sexual reproduction ­ union of two haploid cells formed by meiosis ○ Key evolutionary innovations that occurred in ancestral protists ○ Allows genetic recombonation → generates diversity for evolution → explosion of eukaryotic diversity ● Protists: Bridge for multicellularity ○ Colonial protists ■ Multicellularity = specialization ● Excavata ○ Have ‘excavate’ structure ○ Same cytoskeletal features and DNA sequences ○ Diplomonadida (Giardia intestinalis) ■ Contains two nuclei + flagella ■ Parasite (causes diarrhea) ○ Diplomonads ■ Unicellular, asexual reproduction ■ Two haploid nuclei ■ No mitochondria ○ Parabasalids (Trichomonas vaginalis ­ causes STD) ■ Undulating membrane ■ No mitochondria ■ Parasitic (live in other organisms) ● Euglenozoa (Euglenoidea) ○ Euglenids ■ Unicellular ■ Phototrophs (⅓) and Heterotrophs (⅔) ■ Asexual reproduction ■ Have a pellicle ­ flexible proteinaceous helical structure in plasma membrane (allows shape change) ○ Kinetoplastids ■ Unicellular ■ Heterotrophs ■ Flagellated ■ Asexual reproduction ■ Live in freswater, marine and soil environments ■ ParasiticTrypanosoma genus) ­ African sleeping sickness (tsetse fly), Leishmaniasis (female sand fly), Chagas disease (assassin/kissing bug) ● Antigen variability ­ change the expression of external membrane to make a typical immunization to them ■ Contains mitochondrial genome and DNA granule in single mitochondrion (kinetoplastids) ● Chromalveolates ○ Main characteristic ­ Derived from secondary endosymbiosis ○ Two branches ­ alveolates + stramenopila ○ Have alveoli (flattened vesicles that function like Golgi bodies) stacked below the plasma membrane ● Dinoflagellates ○ Unicellular ○ Two flagella ○ Phototrophs ○ Asexual reproduction, sexual only under stress (closed mitosis ○ Most have a belt­like groove around the middle used for spinning (one of the flagella is also located here) ○ Mostly marine ○ Silica within their shells, others produce toxins (red tides ­ produce vertebrate toxins that kills off fish), some are bioluminescent ● Apicomplexans ○ Plasmodium (responsible for some types of malaria) ○ All Parasitic (heterotrophs) ○ Glide (amoeboid­like) ○ Both asexual/sexual reproductive stages ○ Apical complex ­ necessary for normal cycle, invasion and makes a fatty acid covering around itself (good target for drugs used against it) ○ Mosquito host (sexual reproduction) → gametocytes ingested → sexually produced sporocytes → mosquito feeds + releases sprocytes → sporocytes enter liver (asexual reproduction) → asexually reproduced merozoites lyse infected liver cell → enter blood stream → infect red blood cells and multiply within them → lyse red blood cells → merozoites turn into gametocytes (not all of them do this) ■ Apical complex believed to be derived from chloroplasts, thought that herbicides could be used to eradicate malaria ■ Blocking apical complex is one function that scientists have used to battle them ○ Use antigen variability ○ Toxoplasmosis ■ Affects people with cats and women who are capable of being pregnant ■ Toxoplasma gondii affects the unborn baby and causes problems in the adults too ● Ciliates ○ Contain cilia for movement ○ Contractile vacuoles ­ control water movement throughout the cell ○ Gullet ­ food is consumed (heterotrophs) and phagocytosed into vesicles ○ Pellicle ­ done for flexibility ○ Have sexual/asexual reproduction ○ Contain two nuclei (micro/macronucleus) ● Conjugation ○ Micronucleus undergoes meiosis → 4 haploid cells → 3 degenerate (proof of evolutionary theory) → 1 micronucleus → mitotic division → 2 micronuclei → exchange of micronucleus occurs (conjugation) → new micro fuses with old micro → diploid micro → Macronucleus disintegrates → Micronucleus divides mitotically → produces two identical micronuclei → one stays as a micronucleus and the other gives rise to new macronucleus ○ Micronucleus = sexual, Macronucleus = asexual ○ Paramecium can divide up to 700 times before they die ○ Stramenopila ­ brown algae, diatoms and oomycetes (fine hairs on flagella) ● Diatoms ○ Raphe ­ little hairs on cilia that help them move and perform basic living functions ○ Double sided shells ○ Unicellular ○ Nonmotile, some move with raphe ○ Photo/Heterotrophs ○ Asexual and sexual reproduction (both occur in their life cycle) ○ Freshwater, marine and soil environments

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Chapter 2.1, Problem 2.1.1.20 is Solved
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Textbook: Precalculus: Graphical, Numerical, Algebraic
Edition: 8th Edition
Author: Franklin Demana, Bert K. Waits, Gregory D. Foley, Daniel Kennedy, Dave Bock
ISBN: 9780321656933

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Answer: In Exercises 712, write an equation for the linear function satisfying the given