Biology Questions

Each of these geometric shapes has a different number of sides Rank these shapes from greatest to fewest number of sides To rank items as equivalent overlap them octagon triangle Greatest number of sides pentagon hexagon square rectangle Reset Help Least number of sides

Sternal Axillary Umbilical Inguinal Brachial Antecubital Carpal 45 Azomial

Part A How many valence shell electrons does the element carbon have H H H two four Six Oeight H D

Activity Figure 1 8a 2 of 2 Drag the appropriate labels to their respective targets Patellar Coxal Femoral Pubic Digital

appropriate labels to their respective targets Figure shows Posterior Dors Sacral opliteal umbar Sural alcaneal Scapular JUL

A During alternation of generations the gametophyte generation goes through to produce gametes binary ficcion B meiosis C mitosis

Scapular Sacral Cervical Gluteal Vertebral Perineal Occipital Lumbar III Rese

Activity Figure 1 5 Drag the appropriate labels to their respective targets Stimulus Control Center Input Response Output Balance Receptor IMBALANCE Afferent Efferent pathway pathway Effector IMBALAN

A The is dominant in the cone bearing gymnosperms B

A During alternation of generations the sporophyte generation is and the gametophyte generation is B C

Art labeling Activity Figure 1 2 Organ system level Chemical level Organismal level Tissue level Organ level Cellular level Atoms Molecules Cardiovascular system Heart Blood vessels Organelle Smooth muscle cell Blood vpel organ Smooth muscle tissue O

Which type of bond results in the transfer of valence shell electrons from one atom to another lonic Polar Covalent Nonpolar Covalent All of the above Question 3 1 point Listen Carbon is electropositive electronegative

Carbon is electropositive electronegative

together by the removal of water dehydration synthesis decomposition reaction hydrolysis exchange reaction Question 5 1 point Listen gh which monomers are joined Globular proteins may unfold and lose their function due to a decrease in pH or an increase in temperature True

Globular proteins may unfold and lose their function due to a decrease in pH or an increase in temperature True False

Which of the following refers to the process through which monomers are joined together by the removal of water dehydration synthesis decomposition reaction hydrolysis exchange reaction

An atom s atomic number is 8 and its mass number is 18 How many electrons would that atom have 8 Cannot be determined from this information 10 18

Amongst the choices below only which is the highest level of structural organization organ level organ system level cellular level tissue level

parts and of body parts A is the study of the structure of body A is the study of the function

All of the following are true except one Select the statement that is FALSE regarding positive and or negative feedback Negative feedback is crucial for maintaining homeostasis In negative feedback the response decreases or reduces the original stimulus In positive feedback the response increases or enhances the original stimulus often resulting in an amplifying effect Positive feedback regulates mechanisms that are beneficial to the body whereas negative feedback regulates mechanisms that are harmful to the body

Identify the following errors as systematic or random A micropipet is improperly calibrated and the balance dispensed is always smaller than expected Choose The last digit on a pH meter fluctuates up and down as a measurement is taken Choose A thermometer is placed such that the bulb makes poor contact with the measured substance giving erratic tempera readings Choose A few drops of water are on a balance pan causing the mass output on the balance to be high each time it is used Choose Y

Drag the following unit conversions into the appropriate bin View Available Hint s Convert milliliters to liters Convert kilograms to milligrams Multiply by appropriate factor of 10 Convert meters to micrometers Convert nanoseconds to secon Divide by appropriate factor of 10

Starting at the beginning drag and drop the phases of the Scientific Method in order from left to right First step manipulation and analysis of data statement of a hypothesis reporting of the concl usions of the study observation of some phenomenon collection of empirical data Rese Last

This is one of the fossil record that can be viewed at the Beneski Museum at Amherst College Which type of fossil is this

Predation has been hypothesized as one of the most important driving forces for increasing biodiversity of animals on earth due to escalating arms and race interactic between predators and prey Huntley and Kowalewski 2007 compiled a species lew database of predation intensity as measured by the frequency of common predation traces drillings and repair scars ranging in age from Ediacaran to Holocene Based the graph would you conclude that there is a correlation between biodiversity num of genera and predation frequency Number of Marine Animal Genera 6000 5000 4000 3000 2000 1000 0 Mean Standing Diversity 6000 600 4000 2000 O 0 600 500 400 300 200 100 500 400 0 2 0 16 0 12 0 08 0 04 0 0 Ediac C OS D MP Pm R J 300 Age Ma Median Predation Trace Frequency Drillhole A Repair Scar 200 coccer Y K 100 poco co GOOOX DC LOCO 004400 RETRA og 0 8 Pg Ng 0 6 0 4 0 0 2 0 Frequency of Specimens with Predation Traces

B I 9 U S X x I a Organisms with low C value ate mostly C3 plants 8 2 S I lo If the 813C values generally range between 24 00 and 32 00 for plants using the C3 pathway and between 10 00 and 14 00 for plants using the C4 pathway what can you surmise about the diets of species with low and high ratios

The adult form of a fungi is a organism that resulted from mitosis A tetraploid B triploid C diploid D haploid

Indicate whether you think each statement is an observation or a hypothesis prediction C4 plants have higher levels of carbon 13 than both living and extinct C3 plants The ratio of carbon isotopes in extant animals reflects the kinds of animals and plants that they eat Fossil animals will show the same relationship between the ratios of carbon isotopes and diet as living animals Hominin fossils in East Africa dating from 4 2 million years ago have a relatively low ratio of carbon 13 to carbon 12 The relatively low ratio of carbon 13 to carbon 12 in 4 2 million year old hominin fossils indicates a diet rich in C3 plants The relatively low ratio of carbon 13 to carbon 12 in hominin fossils is similar to the ratio found today in the teeth of chimpanzees Chimpanzees feed on fruits and leaves Plant fossils from the same sites where the teeth of 4 2 million year old hominin fossils were discovered will contain C4 plants consistent with early hominins living in grassy woodlands where they easily could have found C plants 4 2 million year old hominin fossils were actively selecting C3 plants for their diet Choose Choose Hypothesis Prediction Observation Choose Choose Choose Choose Choose Choose Choose O

Order the hominin species in the order it first appeared Sorry there are duplicates of Kenyanthropus platypus just rank them both in the order Ardipithecus ramidus Australopithecus anamensis Australopithecus afarensis Kenyanthropus platypus Kenyanthropus platypus Paranthropus aethiopicus Homo sp Paranthropus boisei Homo sapiens Choose Choose Choose Choose Choose Choose Choose Choose Choose 7

Select all statements that are TRUE More than one answer may be correct Theories and biological principles cannot be proven wrong by new experimental findings Theories link sets of data and make predictions that may lead to additional avenues of investigation Hypotheses are unproven conclusions that attempt to explain some phenomenon Experimental data that is consistent with a hypothesis increases the probability that the hypothesis is correct

Select all answers that are TRUE regarding Line Graphs More than one answer may be correct View Available Hint s The curve on a line graph should routinely be extended beyond the last plotted point Simple line graphs allow trends or patterns in the data to be demonstrated The variable that is manipulated in the experiment is plotted on the X axis The variable that is measured in the experiment is plotted on the Y axis O Properly drawn line graphs can convey the essential meaning of a large amount of statistical data at a glance

Drag the observations into their respective bins View Available Hint s color of a urine sample qualitative observations blood glucose level osmotic pressure of a solution weight of sample liver quantitative observations Reset stickiness of a serum sample

Which of the following is the LEAST important characteristic of a good hypothesis View Available Hint s O Hypotheses must be testable O Hypotheses must be correct predictions O Hypotheses must be based on measurable describable facts O Hypotheses must not be anthropomorphic

1 Sorting exercises require you to place objects into different categories or bins 2 A bin can remain empty but you must place all objects 3 To start over click Reset 4 Before you submit your answers you can rearrange the objects by dragging them to new bins 5 When you are satisfied with your answers click Submit Correctly classify each of the given food items as either a fruit or a v Drag the appropriate items to their respective bins View Available Hint s avocado Fruits apple banana table from a botanical perspective If you need help click View Available Hint s potato Vegetables tomato carrot Reset Help

Sparrows with average sized wings survive severe storms better than those with longer or shorter wings illustrating stabilizing selection neutral variation disruptive selection O the bottleneck effect frequency dependent selection

Natural selection changes allele frequencies because some reproduce more successfully than others Ogene pools individuals Ospecies loci alleles survive and

must happen due to organisms innate desire to survive Orequires the operation of natural selection can happen whenever any of the conditions for Hardy Weinberg equilibrium are not met Orequires that populations become better suited to their environments must happen whenever a population is not well adapted to its environment

Thrashers males and females look alike only males sing elaborate songs Males acquire new phrases and elements for their songs each year and can eventually build up a significant vocal repertoire Females prefer males with large repertoires as mates In this case how might song repertoire be a signal for good genes in the males a large repertoire means the males are better listeners 0 a large repertoire means the males have been able to survive for longer periods of time 0 a large repertoire means the males have had a lot of offspring previously a large repertoire means the males have done a lot of traveling it could be any of these

Besides differences in coloration or ornamentation in what other ways can males and females of a species be dimorphic they make different sounds Otheir body sizes are different they look for food in different parts of their habitats it could be any of these

One reason the extreme dimorphism of Birds of Paradise was able to evolve was because Othere were few natural predators in their environment Ohabitat loss forced males to compete more for females all males have equal reproductive success food was scarce which forced extreme competition among the males

Which evolutionary process most likely leads to dimorphism in which males are bigger than females and or have features such as large antlers or tusks female choice O genetic drift natural selection male to male competition

Listen In red winged blackbirds males and females look very different The males establish and defend the breeding territories Female blackbirds choose the best territories to nest in and the male that comes with it As a result some males with good territories will have multiple females nesting there What type of selection pressure do you think male red winged blackbirds are facing the most Omale to male competition O female choice natural selection it could be any of these

In the Birds of Paradise why don t the fancy males just keep getting fancier the females will stop choosing males that are too fancy males with excessive plumage my not be able to survive in their environment there are only so many genes for fancy in the males other males will attack males that get too fancy

Listen A taxon that includes a common ancestor all descendants of that ancestor and no other organisms is considered to be O polyphyletic Omonophyletic Omonogamous paraphyletic

Listen In a comparison of birds and mammals having four limbs is an example of analogy rather than homology a character useful for sorting bird species Oa shared ancestral character Oa a character useful for distinguishing birds from mammals O a shared derived character

Ochoose the tree with the fewest branch points base phylogenetic trees only on the fossil record as this provides the simplest explanation for evolution Ochoose the tree that assumes all evolutionary changes are equally probable O choose the tree in which the branch points are based on as many shared derived characters as possible choose the tree that represents the fewest evolutionary changes either in DNA nuences or morphology

Which eukaryotic kingdom is polyphyletic and therefore unacceptable based on cladistics Protista Fungi Animalia Monera Plantae

The evolutionary relationship among organisms is known as homoplasy homologous synapomorphy Otaxonomy phylogeny

Which kingdom has been replaced with two domains Fungi Protista Monera Animalia Plantae

Listen Certain fish in the Antarctic Ocean and the Arctic Ocean that are not closely to each other have each evolved natural antifreeze molecules as adaptations to in in the frigid waters This is an example of clades Osister O homology O convergent evolution evolutionary reversals