Biology Questions

The type of connective tissue in this slide is de Oa Dense irregular connective tissue O b Mucoid connective tissue OC Loose connective tissue O d Dense regular connective tissue Clear my choice

Questio Not yet answered Marked out of 1 00 In this picture the network of black fibers consists of O a Elastin O b Fibrillin O c Collagen O d Actin

This is a map of Permian age geography Discuss the contrast with how a modern map would look Bring in concepts of rifting and vicariance to explain these contrasts South America Cynognathus Africa India 2 Antarctica Lystrosaurus W Glossopteris Australia

Match the layer to the correct property crust mantle core lithosphere asthenosphere Choose highest rocky layer crust plus upper part of mantle solid middle rocky layer made of Fe iron partially molten layer of mantle Choose J Choose Choose

Match the type of plate boundary with the correct process divergent boundary convergent boundary transform boundary Choose plates slide past each other plates move apart and an ocean basin opens plates collide resulting in either subduction or a collisional mountain Choose

Plates migrate at a rate of many miles per year O True O False

Plates are composed of which layer O core O lithosphere O asthenosphere

Match the relative dating principle to the proper definition superposition original horizontality uniformitarianism faunal succession Choose the rock record shows a sequence of fossil organisms younger layers overlay older layers all sediment start out flat but can be folded later the same physical forces operate today as they have in the pa Choose Choose

Match the relative dating principle to the proper definition superposition original horizontality uniformitarianism faunal succession Choose Choose Choose younger layers overlay older layers the same physical forces operate today as they have in the past all sediment start out flat but can be folded later the rock record shows a sequence of fossil organisms

Eras are shorter time increments that Epochs O True O False

What information is used to recognize the boundaries between time increments on the geologic timescale O a change in the type of rocks igneous sedimentary metamorphic O a change in the fossil content O a change in color of the rocks

Explain how the radioactive decay of a parent element into a daughter product allows for absolute dating of a geologic material Make specific references to the curves in the figure in your explanation Number 100 Number of parent ame 75 25 unter der Member of ball Ives

During radioactive decay an isotope will lose mass and or energy and become a different element What changes in the nucleus makes it a different element O It loses gains one or more neutrons O It loses gains one or more protons

The bottom of the geologic time scale represents the beginning of the earth O True O False

Isotopes of an element differ by the number of protons they have O True False

The correct order of the Eras of the Phanerozoic from oldest to youngest is Cenozoic Paleozoic Mesozoic O Paleozoic Mesozoic Cenozoic O Mesozoic Cenozoic Paleozoic

Periods are shorter time increments than Eons O True O False

Leucine Zipper shown below is an example of a coiled coil A typical Leucine Zipper consists of two a helixes with leucine residues in about 7 residue intervals Shown below is one of those intervals In Biochemistry mutations often are done to study the effect of changing residues in a protein Electrostatic reactions are where a positively charged side chain interacts with a negatively charged side chain like the one shown below lysine s positive side chain interacting with glutamate s negative side chain 0 Potential cons Potential electrostatic interactions Gly f Instructions Prompt 1 Explain what principles are involved in holding the two a helices together Suggest one possible residue that could replace leucine as indicated by the red star and maintain the hydrophobic core shown below and suggest one possible residue that would destabilize the core Please explain your reasoning Glu b Glu Class ww d Hydrophobic core Potential electrostatic interactions Potential electrostatic Lys Glu Gly

Mississippi River East South Central Misefeelppl Jackson Memphis Oblo River Kentucky Nashville Tennessee Mississippi Alabama Monigomery Golf of Mexica Chattahoochee EnchantedLeaming com southeast in this area and what is its capital Ann River Ohio River Frankfort Lexington Knoxville N WE 9 S Key State Capital Water State boundary City 1 What large body of water borders the East South Central region on the south 2 What major river borders this area on the west 3 What major river borders this area on the north 4 What is the northernmost state in this area and what is its capital 5 Which state is the farthest En which part of the USA is this area located the northeast portu West 6 Which state is the farthest southwest in this area and what is its capital 7 Which state is located just south of Kentucky and what is its capital In which state is Lexington located Which two of the East South Central states border the Gulf of Mexico and

You have two true breeding plants one with blue flowers and one with red flowers You cross these plants and then cross two of the resulting F1 plants The resulting F2 generation contains the following offspring 248 red flowered offspring 255 blue flowered offspring and 497 offspring have purple flowers Which of the following patterns of inheritance best explains the results you observed The red pigment is codominant with the blue pigment Blue pigment production is a controlled temperature sensitive allele The blue and red pigment alleles exhibit incomplete dominance O The purple pigment allele is dominant over both blue and red alleles O The red pigment is dominant over the blue pigment allele

In cat coating hair length is determined by a single gene with two alleles L which results in short hair and I which results in long hair A researcher performs a genetic cross between two heterozygous cats for hair length LI What is the probability of obtaining exactly 3 cats with short hair LL or LI out of a total of 5 offspring Hint Use the Binomial probability formula to find the answer n n X IXIA P X 0 2637 O 0 3955 0 3125 Tp qn 2

Summer squash plants with the dominant allele C bear white fruit whereas plants homozygous for the recessive allele c bear colored fruit Summer squash have a second locus that acts as a modifier gene if the plant is colored IF the plant is colored and is G at the second locus they will be yellow If they are colored and gg at the second locus they will be green You cross a double heterozygous plant and a double homozygous recessive plant CcGg x ccgg What will be the percentage of white yellow and green squash plants in this case 20 20 10 O 50 25 25 O 40 25 25 75 30 30

Dank EI Phenotype Spindle fibers Diffusion Conjugation Facilitated diffusion Antibiotic Fluid mosaic Osmosis Binary fission Heterozygous Genotype Nucleus Prokaryote Recessive trait Mitochondria Zygote The several parts that make up the whole membrane In genetics the description of the organisms trait ie Blue eyes brown hair The not expressed when the dominant allele is present The director and is the control center of the cell In genetics genes are unalike as in one is dominant and one is a recessive gene movement of particles from an area of high concentration to an area of low concentration until tration between the two areas is balanced is a description of a cell membrane It is like a stained glass window with is the physical of the cell is the means that the is is the

A44G A11B A21P A35C A88T A2Y A8B A46Q A1Z

Can you please make dna tree from olive babion Papio anybis mouse Gerbil meriones unguiculatus brown rat Dog chicken Striped hyena hyena hvena domestic cat delis catus western lowland gorilla human

purple P flower color is dominant to white p flowers and yellow Y seeds are dominant to green y seeds Flower color and seed color are inherited independently A cross is done between two plants of unknown genotypes and the results of the F generation are analyzed Purple yellow 0 Purple green White yellow 0 321 White green 101 You notice right away that all offspring are white You then notice that the yellow green ratio is approximately 3 1 Knowing this determine the parental genotypes

A human blood cell 1 solute is placed in salt water 5 solute a Is the environment hypotonic hypertonic or isotonic circle b Is the cell hypotonic hypertonic or isotonic circle c What is the water concentration inside the cell d What is the water concentration outside the cell e Where is the water more concentrated inside or outside f Which direction will the water move into or out of the cell g What effect will this have on the cell h Is this an example of cytolysis or crenation circle

5 Sodium is needed for healthy 5 and are nutrients such as calcium and iron

In 1861 Louis Pasteur observed that when yeast grows in a flask with sugar and protein medium completely free of air they ferment vigorously and for every gram of yeast that forms 60 to 80 grams of sugar are consumed If the experiment is carried out in a flask in the presence of air for every gram of yeast that forms only 4 to 10 grams of sugar are consumed If the yeast is transferred to a sugar containing medium without air the yeast reverts to consuming 60 to 80 grams of sugar for each gram of yeast produced When the experiment is carried out in a protein based medium yeast grows only in the presence of oxygen Pasteur concluded that yeast can extract oxygen from air and in the absence of air the yeast derives oxygen from the sugar Pasteur applied quantitative methods to his studies of fermentation and was the first to report on organisms that could live and reproduce in the absence of oxygen His basic conclusion was however incorrect Even so the different behaviors of yeast in these experiments are now known as the Pasteur effect 1 Explain the three yeast behaviors based on modern concepts of microbial metabolism 2 Which metabolic processes occur in each of the experiments 3 What was incorrect about Pasteur s conclusion

Place the following events for preparing a bacterial slide in order Allow sample to air dry Draw a circle on the slide with wax pencil Pass slide through the flame 2 3 times Thoroughly wash slide with soap and towel water and dry with a paper Choose Aseptically transfer a loopful of bacterial culture onto the slide 15243 Choose Choose Choose

2 You are interested in researching whether or not AP biology students who use a test prep book perform better on the exam than those who do not use a test prep book You take 60 random students and give 30 of them a test prep book while the other 30 will use the resources they already have After the students take the exam you analyze the data and find that of the students who used a test prep book 26 passed For the students who used only the resources they already had you found that 12 passed With this data would you suggest to future students to use a test prep book

a Examine the fossil reptile trackway the holes made by a boring clam and also the specimen with tube like structures The latter is an exceedingly common type of trace fossil Many marine and freshwater worms burrow through soft sediment ingesting the sediment as they move along and then filling the burrow with their droppings essentially sediment This process produces the tube like structures seen here Which depositional environment did each specimen form in marine or continental trackway specimen boring clam specimen worm burrows

material organic I a Examine the two samples of shale and the peat Which ones formed in anoxic environments

a identify one depositional environment on the figure in which it might form b identify from the list which rock type s are most likely to preserve fossils and explain why conglomerate sandstone mudstone limestone Glacier Arid restricted circulation Dunes Alluvial fan Lake Swamp Beach Delta S Stream Shell platform Sioperise Deep marine Tidal flat Boach barrier island CH5960 Reer

c Given their size and simple cell structure to which of the three major groups of the universal tree of life might these specimens belong Bacteria Archaea or Eukarya

Brown eyes are a dominant eye color allele and blue eyes are recessive A brown eyed woman whose father had blue eyes and whose mother had brown eyes marries a brown eyed man whose parents are also brown eyed They have a son who is blue eyed Draw a pedigree info above showing all four grandparents the two parents and the son Indicate each individuals possible genotypes

1 Select on the response boxes and drag them to the correct position in the list 2 Select Check Answer 3 Select Next to proceed Arrange the steps in the order in which you proceed through the lesson Review all content before completing the Evaluation section Read all procedures in the experiment to ensure you are prepared for your hands on tasks Check that you have gathered all materials required to perform your experiment Review all data tables to ensure you have completed the quired areas of the experimentation section tructions and questions

M IIO III 1 2 O 2 3 4 5 O 6 Is this trait dominant or recessive Explain your answer 6 7 8 H b What gave you the essential information to decide that II 3 and II 4 were heterozygous

Set up a Punnett square using the following information Dominate allele for normal coat color in wolves N Recessive allele for black coat color in wolves n Dominant allele for brown eyes B Recessive allele for blue eyes b Cross a heterozygous dominant parent with a homozygous recessive parent X 150

III 1 2 3 4 5 e a Which members of the family above are affected by Huntington Disease 7 c How many children did individuals 1 1 and 1 2 have d How many girls did II 1 and II 2 have b There are no carriers for Huntington s Disease you either have it or you don t With this in mind is Huntington s disease caused by a dominant or recessive trait 8 How are individuals III 2 and II 4 related Huntington s Disease

A family tree of sorts is called a pedigree The symbols used for a pedigree are female unaffected female affected male unaffected male affected Problem 1 I II III 1 2 3 3 Siblings are placed in birth order from left to right and are labeled with Arabic numerals Each generation is labeled with a Roman numeral Therefore the male exhibiting the trait in the pedigree below in the bottom center youtu bi identified as III 4 4 TO 5 6 7 8 Huntington s Disease of the family above are affected by Huntington s Disease

Set up a Punnett square using the following information Dominate allele for tall plants D Recessive allele for dwarf plants d Dominate allele for purple flowers W Recessive allele for white flowers w Cross a homozygous dominant parent with a homozygous recessive pare X

Select Next to proceed Match each term with the correct definition The part of the lesson that reviews of content needed for the lesson The part of the lesson that provides a hands on application of content knowledge The part of the lesson that assesses how well you have achieved the learning objectives set for the lesson

Listen Number of families of marine animals 900 600 300 Cambrian explosion 600 PALEOZOIC ERA Ordovician Devonian extinction extinction MESOZOIC ERA Triassic extinction Permian extinction 400 200 Geologic time 106 years before present CENOZOIC ERA illicer Cretaceous extinction 0 The figure represents the fossil record of marine organisms that depicts long term changes in animal diversity Choose which answers below accurately describe the figure above The overall number of marine families has increased to the present This figure illustrates polymorphism within a species of marine organisms The most disastrous extinction occurred approximately 200 million years ago mya The Cambrian explosion is when most families of marine organisms arose The sharp drops on the figure indicate punctuated equilibrium which explains change in speciation and extinction over millions of years The sharp drops on the figure indicate episodic mass extinctions which explains

In some reptiles incubation temperature of the nest determines the sex ratio Select which answers best fit what the figure below is indicating Percent males 100 80 60 40 20 O Low Incubation temperature High KEY Many lizards alligators Many turtles Leopard geckos snapping turtles crocodiles Temperature dependent sex determination is a genetic factor found in some reptiles Embryos of snapping turtles become male at lower temperatures There is a equal chance of both male and female leopard geckos developing at intermediate incubation temperatures Alligators eggs incubated at higher temperatures all become males Particularly in reptiles there is a large degree of variability in sex determination

Jan 15 Jan 21 Must post first How would the use of bacteriocidal bacteriostatic or bacteriolytic antimicrob agents differ in their resulting cell counts total and viable How would the ef differ regarding the growth curve of the cells Use examples to support your

How do prokaryotic cells exhibit cellular differentiation Describe one manner of differentiation and the purpose of such differentiation You must start a thread before you can read and reply to other threads

This question is based on the last ATOD How do Whiptail lizards adapt to survive in the harsh desert environment By changing the color of their scales based on their mood By adjusting their body orientation to control heat absorption from the sun By developing wings to fly to cooler areas By hibernating during extreme temperature fluctuations

Using an example describe how each of the five levels of organization relates to the next level of organization

Describe two specialized cells in the respiratory system that enable the lungs to function