Reproduction in Organisms Questions and Answers

4 The bacteria grew on the starch plate and there was no visible clearing around the growth once the gram iodine was used Is this a positive or negative starch test

competition for utility companies Legislatures regulate competition for utility companies because competition would not be efficient for the economy Legislatures regulate competition for utility companies O in order to keep the price of utilities low so families can afford them Legislatures regulate competition for utility companies in order to maintain a standard in certain utilities Legislatures regulate

Question 2 Points 2 The following excerpt is taken from The Scarlet Letter The narrator describes Dimmesdale s attitude toward the people around him Trusting no man as his friend he could not recognize his enemy when the latter actually appeared Which of the following options best explains Dimmesdale s behavior O Mr Dimmesdale is an introvert and never discloses his secrets to anybody O Mr Dimmesdale s eyesight is poor that he could not recognize people near him O Mr Dimmesdale does not want his secret love affair to come to light O Mr Dimmesdale trusts everybody in town because he is an important person in town Complete Later Complete Rese Reset this a Quest 1 5 Re 9

Sperm chemotaxis facilitates the meeting of sperm and ovum induces the directed locomotion of sperm when getting closer to the ovum is due to the release of chemicals by the spermatozoa in the female reproductiv system is allowed by the attractants secreted by the ovum

As compared to asexual reproduction sexual reproduction leads to many haploid individuals is a slow process that is less efficient in terms of the population growth energy expenditure ratio facilitates the transmission and persistence of mutations that are beneficial for the target individuals includes hermaphroditism and regeneration

les are considered a continuous species since they have many offspring that they do not take care of while the rest of their life characteristics are similar to that of K strategists True False Question 20 1 point Listen When individuals reproduce sexually and 2 parents one male and one female are needed to produce offspring we say that these individuals are dioecious haplodiploid hermaphrodite

Diploblastic animals have an endoderm and ectoderm whereas triploblastic animals which are the most abundant animals also have a mesododerm True False Question 13 1 5 points Listen As compared to sexual reproduction asexual reproduction produces offspring that are unique facilitates the making of new organisms requires less energy and ressources can happen rapidly via meiosis Oleads to minimal or no genetic variability

Reproduction is a basic feature of life that can be expressed in different ways and allowing for the maintenance of species True False

18 81 1 20 21 Listen Which of the following promotes follicle growth in the Ohigh levels of estradiol O estradiol plus progesterone OhCG OFSH high levels of progesterone

2 During pregnancy the uterus grows up to 10 times its normal size as the baby develops Explain why this might cause the following a Most women find that they must urinate much more often than normal especially during the first trimester b Many women during the last trimester find eating large meals to be a challenge and often will be eating many small meals snacking throughout the day instead c Towards the end of pregnancy women often experience difficulty breathing unable to take deep breaths

Which statement best describes how the law of segregation is involved in inheritance OA The alleles for different genes are sorted separately during gamete formation B Gamete formation always leads to the production of one dominant allele and one recessive allele OC An individual s two alleles for a gene separate during gamete formation and only one is passed to each offspring D The formation of gametes occurs only when a parent has two of the same alleles

Hormones control the two closely linked reproductive cycles in human females the uterine or menstrual cycle and the ovarian cycle During one uterine cycle which is approximately 28 days long the lining of the uterus undergoes hormonally regulated changes if no pregnancy has occurred At the same time the hormones also cause a series of changes to take place in an ovary known as the ovarian cycle The flowchart below describes the events of the ovarian cycle Drag the names of the hormones to their appropriate locations on the flowchart starting with the release of a hormone from the hypothalamus Labels may be used once more than once or not at all GnRH gonadotropin releasing hormone LH luteinizing hormone FSH follicle stimulating hormone View Available Hint s estradiol and progesterone GHRH crytoom LH and PSH ending inhibition of the i hypothalamus and pituitary and allowing secretion of causing a decline in corpus luteum disintegrates hypothalamus secretes stimulates the pituitery to secrete luteal phase causes the pituitary to inhibir production of which stimulates follicle growth and secretion of follicular phase ovulation corpus luteum secretes which at high levels causes the pituitary to increase production of d Faticle maturation and ovulation Reset Help

f e d C b a ancestral protist b Porifera Ctenophora Cnidaria Acoela Hemichordata Echinodermata Chordata Platyhelminthes Rotifera Ectoprocta Brachiopoda Mollusca Annelida 74 Nematoda P101 Arthropoda Which group is the Lophotrochozoa Refer to this phylogeny

In Woozles a pretend animal it has been discovered that the genes for fur color A purple a yellow tail shape B curly b straight wing size C long c short and ear shape D pointed d floppy are all on the same chromosome linked Your job is to map genes A B C and D which are all found on the same chromosome linked using the resulting phenotypes of offspring from the various crosses given below Then select all of the responses that are correct about this problem Cross AaBb x aabb yellow curly AaCc x aacc yellow long AaDd x aadd yellow pointy BbCc x bbee straight long BbDd x bbdd straight pointy CcDdx ccdd short pointy Offspring phenotypes 49 purple curly 49 yellow straight 1 purple straight 1 42 purple long 41 yellow short 9 purple short 8 40 purple pointy 38 yellow floppy 10 purple floppy 12 43 curly long 42 straight short 7 curly short 8 39 curly pointy 37 straight floppy 11 curly floppy 13 29 long pointy 32 short floppy 18 long floppy 21 B and Care the farthest apart A is between B and D The order of the genes is B A D C on the chromosome Crossing over is least likely to occur between B and A C and D are the farthest apart

ist discovers a new species of plant in a tropical rain forest Investigation of its anatomy and life cycle shows the following characteristics flagellated sperm xylem with tracheids separate gametophyte and sporophyte generations with the sporophyte dominant and no seeds This plant is probably most closely related to OA flowering plants O B ferns O C gymnosperms OD mosses

ich of the following sex and generation combinations directly produces the pollen tube of angiosperms OA female sporophyte B female gametophyte C male gametophyte OD male sporophyte

Which of the following is true postzygotic reproductive isolation A Mechanical isolation B Habitat isolation C Gametic isolation D Hybrid inviability

The role that humans play in artificial selection is to train organisms to breed more successfully create the genetic variants which nature then selects determine who lives and who dies O choose which organisms breed and which do not

Listen Which of the following sex and generation tube of angiosperms D Al female gametophyte OB male gametophyte OC male sporophyte female sporophyte on 014 Cl

Female guppies fish prefer to mate with males that have bright orange tails In a fish tank biologists added blue yellow and orange tailed males and equal numbers of females Predict what would happen to the color of the male guppies after a few generations of breeding Is this evolution What mechanism of evolution is at work here

W 10 A woman experienced severe abuse as a child along with poverty and unsafe living conditions What prediction can be made about her risk of developing a mental health and or a substance use disorder O There is evidence that her experiences increase her risk of both types of disorders O She is more likely to develop a substance use disorder but not a mental health disorder She is more likely to develop a mental health disorder but not a substance use disorder There is no evidence that trauma impacts the risk of developing either type of disorder O

The following passage from The Invalid s Story is an example of Sec 18 This recognition of my poor friend gratified me in spite of the sad circumstances because it had so much the sound of a compliment A Verbal Irony the narrator speaks as if Thompson compliments his friend he really compliments guns B Situational Irony Thompson is making compliments at an awkward time C Dialogue The narrator didn t speak but had the above thoughts

Challenge 1 In red phalaropes the females are much more brightly colored than the males see pics on next slide 1 What predictions can you make about their breeding system monogamy polygamy polyandry 2 What do you think the roles of the males and females are in terms of raising young 3 Why do males and females look the same in the winter

The lac operon is an inducible operon that consists of regulatory regions such as a pro moter region along with three structural genes lacz lacy and lacA The three structural genes code for proteins breaking lactose into glucose and galactose Which of the following statements correctly describes transcription of the lac operon in prokaryotes Select all that apply A B C D When glucose is present and lactose is absent a repressor binds to the operator and re presses transcription of the lac operon When glucose is absent and lactose is absent allolactose binds to the repressor to allow transcription to occur When glucose is absent and lactose is present allolactose acts as an inducer and binds to the lac repressor to inactivate it When glucose is present and lactose is present the repressor binds to the operator to

Question 2 of 10 Which describes how proteins are used in mating by Japanese beetles A Males use a protein to detect pheromones sent by females OB Lipids are stored in proteins and used for reproduction OC Male and female beetles combine proteins to form offspring O D Proteins allow beetles to produce more ribosomes SUBMIT

Mold structures of Zygomycetes D A B C B select answer select answer select answer A

A Fertilization is so the gametes shown to the right may not all be fertilized controlled by the mitotic spindle B X random XX X X pre determined

E G C Draw the pitches you read as quarter notes on the staff below You may use the image below as a guide 02 EFGA B C D E F PENCIL THIN BLACK

Place the steps of binary fission in the correct order to test your understanding of bacterial cell divis Drag the text blocks below into their correct order Septum is completed A transverse septum grows inward as the two chromosomes are pulled towards opposite ends of the elongating cell Daughter cells are separated or may remain attached Cell enlarges and the chromosome is replicated

Asexual reproduction is based on a type of cell division known as Omitosis O melosis

Match the following pl gametangia an organ of lower plants some protists and some fungi that produces gametes the reproductive cell in sexual reproduction for example the egg or sperm 3 gamete producing organ in animals 4 cone bearing plant often called evergreen 5 the condition of having isogametes gametes of the same size and shape gamete gametangium isogamy gymnosperm gonad

When the reproductive organs of two different species don t fit together this is an example of what type of isolation A gametic isolation B temporal isolation C behavioral isolation D mechanical isolation

Which of following is a benefit of sexual reproduction A difficulty finding mate B identical offspring C long gestation periods D genetic variation

Which of the following are similar between spermatogenesis and oogenesis in vertebrate animals Both oogenesis and spermatogenesis 1 begin at the onset of sexual maturity II result in the production of four functional haploid cells from one diploid cell III lead to the production of gametes from germ cells IV are complete at the time of birth Both III and IV OBoth I and II O Both II and III Only III

The primary difference between estrous and menstrual cycles is that O copulation normally occurs across the estrous cycle whereas in menstrual cycles copulation only occurs during the period surrounding ovulation O the endometrium shed by the uterus during the estrous cycle is reabsorbed with no extensive fluid flow out of the body whereas the shed endometrium of menstrual excreted from the body O behavioral changes during estrous cycles are much less apparent than those of menstrual cycles O season and climate have less pronounced effects on estrous cycles than they do on menstrual cycles

The following are the genetic traits of dominance inheritance of the appearance of pea plants seeds Dominant Traits Recessive Traits T tall t short W wrinkled W smooth Y yellow y white Which of the following is the genotype for short wrinkled yellow seed ttWwyy TTWWYY TTWWYY

reproducing asexually allow bacteria to multiply rapidly A It requires two individuals B It requires a lot of energy to mate and reproduce C It brings genetic variation for the species D It doesn t take much time as the cell is just clo

is a type of reproduction exhibited by bacteria O mitosis sexual asexual reproduction O meiosis sexual reproduction O mitosis asexual reproduction O binary fission sexual reproduction Obinary fission asexual reproduction

The difference between asexual and sexual reproduction is O Asexual Reproduction involves sperm and ova O Asexual Reproduction does not involve Gametes which are ova sperm O Asexual Reproduction involves gametes O prior to asexual reproduction DNA is not replicated in the original cell O Asexual Reproduction only occurs in bacteria cells

The most common method of asexual reproduction in protists is Obudding O fragmentation binary fission O multiple fission O meiosis

BIUA 9 The chart on the right shows differences in amino acids a particular gene codes for as compared to humans a Which organism is most closely related to us according to this chart b Which organism is least related Explain GO DE Amino acids reveal evolution Cytochrome e Evolution Number of aming seld differences A Organism from humans Chimpanzee Rhesus monkey Rabbit Cow Pigeon Bullfrog Fruit fly Wheat germ Yeast 1 10 12 20 24 37 42

2 When male emperor penguins stand in the Antarctic winter each with an egg cradled between because his feet and his belly the males parental behavior is altruistic Reynolds is A correct the males run some risk of dying during the long incubation period and so incur a fitness cost by being parental B correct the behavior although risky provides the help that is necessary to preserve the species over time C incorrect each male is incubating his own egg not someone else s D incorrect even though the behavior is costly males have no option except to behave in this manner because of their high parental hormone levels

How are infectious diseases spread O through coughing sneezing or physical contact O all answers are correct O sex O through contaminated water and food ncoki

African Buffalo Population 1960 1975 80000 Population Size 60000 40000 20000 0 1962 1964 1966 1968 Year 1970 PROCEDURE 3 Analyze the graph above What patterns do you notice in the graph 1972 1974 INITIAL MODELS 4 What ideas do you have to explain why the population of buffalo increased so rapidly

Two species of marine corals live close together The first releases its gametes into the ocean early in the evening Some fuse for form zygote but Ocean currents quickly disperse them until they are so diluted no more mating happens A few hours later the second species of coral releases its gametes and the same thing happens Even though they live together no hybrids form The BEST explanation for this is a Prezygotic isolation b Temporal isolation c Hybrid inviability d Post zygotic isolation e mechanical isolation

4 the new plants possess the combi 21 The diagram below represents some stages in the process of development Ishatem ruworg 1 Stage 2 represents a cell that 0 0 0 0 O 3 1 contains half the genetic material of an adult cell 2 shows clear evidence of tissue differentiation 5 3 has the complete genetic information to form an adult 2015 4 is genetically identical to one of the parents that produced it 6 1 8

2 bud shown in the diagram below was produced by asexual reproduction Bud Which process is responsible for the formation of the bud 1 fertilization 2 recombination 3 mitosis Thyciosis

prevent donkeys and horses from mating prevent fertilization of gametes from members of closely related species only occur in asexual organisms are necessary in order for speciation to occur Question 13

2 Briefly describe what types of reproductive barriers exist that isolate gene pools of species and prevent successful interbreeding a 2 points List and briefly describe two prezygotic barriers

ammonite are compared with modern species such as the nautilus to determine ancestral relationships 1 point Ammonite b These images show the embryos of vertebrates at early stages of development Identify similarities among these different species and explain how the similarities provide support for the theory of evolution 2 points Chicken embryo at 4 days Mouse embryo at 11 days Nautilus Human Gly Asp Val Glu Lys Lys lle Pig Gly Asp Val Glu Lys Lys lle Chicken Gly Asp lle Glu Lys Lys lle Fruit fly Gly Asp Val Glu Lys Lys Leu Model of human embryo at 35 days c Similar amino acid sequences for the enzyme cytochrome c are found in many different species The chart shows the amino acid sequences for a segment of cytochrome c found in humans pigs chickens and fruit flies What does this information suggest about the ancestry of these organisms What does it indicate about the relationships between humans and the other species listed Use mathematical comparisons in your explanation 2 points Phe lle Met Lys Cys Ser Gln Cys Phe Val Gln Lys Cys Ala Gln Cys Phe Val Gln Lys Cys Ser Gln Cys Val Gln Arg Ala Gin Cys