Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Bio 51 Lab Exam
| Question | Answer |
|---|---|
| Typically, the ___ of an experiment is plotted on the y-axis> | dependent variable |
| If a plant is well-hydrated, the guard cells will be ___ and the stomata will be ___. | turgid; open |
| As you increase magnification of an object with a compound microscope the object will appear darker. How could you brighten up the object? | open the iris diaphragm |
| If you use a 10x ocular and a 40x objective lens on a compound microscope, the magnification is ___ | 400x |
| If an independent variable exhibits continuous variation, a(n) ___ chart or graph is typically used. | scatterplot |
| When examining the letter "e" under a dissecting microscope, the letter "e" image will appear ___ | upside down and backward |
| Two dogs fighting over food is an example of interspecific competition | false |
| At high power, which adjustment knob on the microscope is always used to focus the image? | fine adjustment |
| ___ states that two species competing for the same limiting resources cannot coexist in the same niche indefinitely. | competitive exclusion principle |
| Male jumping spiders have brightly colored scales on their bodies to attract females. Therefore, this coloration is under selection. | intrasexual |
| The graphs used to model competition from Lab 2 were ___ graphs because the independent variable exhibits ___ variation. | scatter; continuous |
| Which of the following is the actual habitat a species occupies? | realized niche |
| Male pipefishes supply their offspring with nutrients and oxygen via a placenta-like connection; thus, they provide the majority of parental care in this taxon. | relative to females, males carefully choose their mates |
| ___ tend to have a lower potential reproductive rate. | females |
| When graphing population growth, what shape does the exponential growth curve make? | "J" shape |
| In a population with a male biased operational sex ratio, which of the following is true? | females compete for mating opportunities |
| If the frequency of the dominant allele in the population is 0.2, what is the frequency of the recessive allele in this population? | 0.8 |
| Male jacanas are a tropical wetland bird where the males provide all parental care, building a nest and carrying their offspring under their wings to protect them from predators. Which of the following would you expect to be true? | females may be larger and fight over access to males |
| Which of the following is true about sexual selection? | more than one choice |
| Which of the following is a potential "cost" of developing a sexually selected trait. | more than two choices |
| If a population is very small, what assumption of the Hardy Weinberg theory is most likely to be violated? | no genetic drift |
| If p = 0.2 and q = 0.8 in a population where all the Hardy -Weinberg assumptions are met, what would be the expected number of homozygous recessive individual be in the next generation if there are a total of 100 individuals? | 64 |
| Batesian mimicry most affects the step of prediction. | recognition |
| Cows eat grass. Which type of competitive is most likely to occur when both cows and grass are abundant? | scramble |
| If the degrees of freedom are greater than the P value, is there a significant difference between observed and expected data? | cannot be determined |
| A population of field mice normally has to different fur color, which are coded by a single gene. These fur colors are equally distributed in the population. However, following a green fire in the field, the population now has a majority of tan mice. | bottle neck effect |
| A shark uses its memory of a previous encounter with the poisonous lionfish to prevent it from trying to catch any more lionfish. What is this an example of? | learned avoidance |
| A population of fish in Lake Michigan has two different color morphs, which are coded for by a single gene. The silver color fish generally have an easier time camouflaging in their lake habitat. Would you expect the population to be in Hardy Weinberg? | no; no selection |
| All of the following can increase the diversity in a gene pool except ________ | founder effect |
| Every year, manta rays migrate thousands of kilometers. You are studying their migration patterns. Which of the following choices below would be an appropriate independent variable? | age of each manta ray |
| In cases of “sex role reversal,” there is expected to be an equal contribution of parental care from both males and females. | false |
| You are studying Gentoo penguins in the Falkland Islands. One of your observations is that the stripes above their eyes have become wider and longer in males that are able to attract more mates. What mechanism of evolution would this be? | natural selection |
| Male unicorns have developed adaptations to acquire more mates. Which of the following would likely be an example of such an adaptation? | more vibrant rainbow tails and longer-range mating calls |
| You are studying communication in spinner dolphins and their behavior with humans. Which of the following choices would be an appropriate dependent variable? | B, C, & D |
| A non-toxic species of butterfly has purple, gold, and red scales to mimic a toxic species that has gold, red, and purple scales in a different pattern. What type of adaptation is the non-toxic species using? | Batesian mimicry |
| In a population of 100 eagles in Hardy-Weinberg equilibrium, the allele pointed beak is dominant, the allele for the rounded beak is recessive. 9 eagles were found to have a rounded beak, what is the allele frequency of the pointed beak? | 0.70 |
| Which of the following is an example of a control group? | none of the above |
| Many species of sharks have cleaner fish that swim next to them, eating dead skin cells and parasites off their skin, which allows sharks to live longer and healthier lives. What kind of interspecific interaction would this be? | mutualism |
| Red-colored scales are a dominant trait, and blue-colored scales are a recessive trait. 36% of the fish display red-colored scales. What percent of the population is expected to be homozygous dominant? | 4% |
| Harmless hoverflies avoid predator by exhibiting yellow and black stripes, similar to stinging bees. What adaptation are hoverflies using in this example? | Batesian mimicry |
| In a given population, there are 50 males actively seeking mates and 30 females nursing offspring. What would be the operational sex ratio for this population, and what bias is it? | cannot be determined |
| An organism’s __________ is always larger than its __________. | none of the above |
| ____________ competition influences population size. | more than one of the above |
| ___ is changed by the researcher and observations are made to see if the change of the independent variable has an impact on the dependent variable(s). | independent variable |
| ___ change as a result of the independent variable | dependent variables |
| An experiment remain constant regardless of experimental treatment. | control variables |
| Continuous variation uses: | scatter scatterplot |
| Discrete variation uses: | column chart |
| A population grows absence of another species | intraspecific competition |
| Population changes in the presence of another species | interspecific competition |
| Species can theoretically sustain a viable population in a range of habitats that possess suitable environmental conditions and resources | fundamental niche |
| The habitat options in which a species can live, and this smaller habitat | realized niche |
| Maximum number of individuals a set of resources can support in a given environment | carrying capacity (K) |
| A special case of natural selection that acts on an organism's ability to obtain (often by any means necessary!) or successfully copulate with a mate | sexual selection |
| Where the sexually selected trait is designed to attract the opposite sex | inter-sexual |
| Where the sexually selected trait is designed to repel rivals of the same sex | intra-sexually |
| The primary mechanism of evolution where organisms better adapted to their environment tend to survive and produce more offspring | natural selection |
| Changes in the genetic constitution of populations | evolution |
| Predation involves three stages: | search, pursuit, and handling |
| A behavior in which predators quickly learn to recognize poisonous or distasteful species by remembering adverse reactions from attempted predation events | learned avoidance |
| Anti-predator defenses are found among the insects that range from species that are nearly invisible against the background | crypsis |
| Toxic or dangerous prey often warn potential predators using bright colors paired with black | aposematic |
| When there is a tight association of mutual selection pressures acting on two or more species | co-evolution |
| A pair of appendages near the insect's mouth | mandibles |
| Enlarged front legs to grab and subdue prey | raptorial legs |
| Able to thrive in a wide variety of environmental conditions | generalists |
| Learn to avoid non-toxic prey that look the same as the toxic prey | Batesian mimicry |
| Displaying similar color patterns | Mullerian mimicry |
| Where predators do not directly interact with one another | scramble competition |
| Where predators interact directly | interference competition |
Created by:
dania105