Lab 10b

6:16 58 docs.google.com/forms 3 Refer to the figure below 15 points based on a study by Purcell, S., 2002. The study compared the morphology of wild juvenile trochus (A) and hatchery produced trochus (B). You will note that wild juveniles (A) have spiked shell whorls. In contrast, hatchery- produced juveniles (B) of the same size have smooth shell whorls even at a smaller size. Describe the adaptive advantage that the spike whorls confer to these juvenile topshells. What kind of environmental selective pressure, could have led this type of morphological adaptation in topshells. Omm10 2 0 30 40 50 0 Omm10 20 30 40 50 Figure 1. Size series of wild-caueht (A - ton three) and hatcherv-produced (B - bottom three)

If the allometric coefficient describing the scaling relationship between the mandible length of the male stag beetle and its thorax length is 2.3, which of the following is true? Note: While many examples often result in a scaling relationship that looks like this Y = aMb because many parameters scale with mass, it is important to note that parameters can scale with any measurement resulting in a power law where Y changes in proportion with mass/length/area/. to the power b. In this case, Y = aL". O As the thorax length of the stag beetle increases, the mandible length with be relatively shorter. O As the thorax length of the stag beetle increases, the mandible length will increase by the same amount. O As the thorax length of the stag beetle increases, the mandible length with be relatively longer.

For the life table on the previous slide, calculate Ixmx and xlxmx for age class 5. What values do you get? O Ixmx = 0.05 and xlxmx = 0.25 %3D %3D O Ixmx = 1.0 and xlxmx = 5.0 O Ixmx = 0.5 and xlxmx = 0.5 %3D O Ixmx = 0.05 and xlxmx = 0.5 %3D %3D O None of the above

for gel electropertisis, what would be an appropriate caption for the table

A student completed a visual titration and started filling in the Data Tables. Data Table 3: Volumes from the visual titration Initial Reading (mL) 0.15 Final Reading (mL) 25.60 Using these values, complete the increment plan in Data Table 4 in your Lab 4 Worksheet. Your Answer: Vest (ml) If their initial buret reading was 0.15 mL and their buret reading at their endpoint was 25.60 mL, what is the volume where they should switch from adding 2 mL to adding 1 mL? Answer Express your answer in mL but do not include units in your answer. Include at least 2 decimal places in your answer.

When Galileo Galilei pushed a ball down an inclined plane, it had an initial velocity (vo) of 4.0 meters per second (time = 0 seconds) and a final velocity (vf) of 10.0 meters per second (time = 2 seconds). How far did the ball travel along the inclined plane in these 2 seconds? 14 meters 20 meters 28 meters 40 meters 84 meters

Convert your data to the following units, please show how you got the answer 6.5g to kilogram (kg)

Milligrams 47.0 milligrams = Multiple Choice 0.47 decigrams 4.7 centigrams 0.047 grams 0.00047 hectograms All of the answer choices are correct.

S( mM/L-min) V( mM/L-min) 2000 155 1000 150 200 120 100 100 60 80 40 64 20 40 10 20 Find Vmax and Km using all data points and at least two linear transformations

Scientific Name: Protoreaster nodosus Common Name: chocolate chip sea star Description: A: B:

Please answer number 4 for: "Pacific Cownose Ray"

What is v/Vmax ratio when [S] = 4km? %3D

What was the average velocity (mean speed) of the above object, when considering the entire time that it was falling? 48 feet per second 72 feet per second 96 feet per second 192 feet per second 240 feet per second

When we look at HEAD lice, we see (a) Lice from light and dark birds on feathers of light and dark birds (b) Mean luminosity of body and head lice from light and dark birds Luminosity score (mean ± std error) 225 200 O Lice from light birds Lice from dark birds - VS. Body lice (N = 16) p < 0.05 Head lice (N = 10) lower luminosity on light colored birds and higher luminosity on dark colored birds higher luminosity on light colored birds and lower luminosity on colored birds no differences in the luminosity between the two species on the two different birds

What is the HVL of tissue for 1.25 MeV gamma-rays. How many half-layers of tissue are in the human forearm (assume an average thickness of 10 cm of tissue). What is the reduction in intensity as a 1.25 MeV gamma-ray passes through 10 cm of tissue? Assume the density of tissue is 1 g/cm2.

Complete the math using significant figures (line up the decimal, do the math, throw out any decimal place not in common with all numbers, round up if 5 or greater). Your calculator can't round off correctly. (100.6 mm) 0.55555 mm + 100.0 mm =

Calculate the surface area to volume ratio of a cube 5mm and a cube 9mm.

Kepler’s third law can be stated mathematically as: velocity = distance/time (years)2 = (A.U.)3 S = vot + ½ (a) t2 vm = ½ (vo + vf) F = GM1M2/d2

16.Draw a sketch of the 3 major parts of a mature sperm (spermatozoa) and then describe each part. States) Acrosome Nucleus -Mitochondria Microtubules Description Focus E

Direction:  Convert the following.  Show your computation/solution.   1.   9 inches to cm 2.   5 feet 5 inches to cm 3.  5 feet 9 inches to meter 4.  99 kg to lbs 5.  120 lbs to kg

20.4 20.4 20.0 20.0아 19.0 19.0 18.0 18.0 17.6-y = 0.248x + 14.65 17.6-y = 0.020x + 19.07 18.4 19.0 20.0 20.4 18.4 19.0 20.0 20.4 (a) Female parent tarsus length (mm) (b) Foster mother tarsus length (mm) 1. Panel (a) shows results from mother-offspring regression estimation of heritability of tarsus length in the pied flycatcher. Panel (b) shows regression of offspring tarsus length against foster mother tarsus length. In this experiment, 54 clutches were exchanged as eggs between parents. The narrow-sense heritability estimate is twice the slope of the regression equations. Briefly explain (no more than 3 sentences) how this cross-fostering experiment helps address the hypothesis that genetic factors play a larger role that early rearing (post-hatching) environment for explaining variation in tarsus length of this bird species. Offspring tarsus length (mm)

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The momentum or “impetus” of a 12 kilogram mass moving at 7 meters per second can be stopped completely by a direct collision with a 3-kilogram mass moving at a velocity of: 14 meters per second 28 meters per second 36 meters per second 63 meters per second 84 meters per second

14. Nematode Life Cycle Matching: Match each of the descriptions below with the correct nematode worm species (A-D). Note that some descriptions may not apply to any of the 4 species (in which case just write “none") and some descriptions may apply to multiple worms species (in which case write the letters of all applicable species). (A) Dirofilaria (heartworms) (B) Dracunculus (Guinea worm) (C) Ascaris (D) Hookworms 1. Life cycle includes only a single host 2. The infective stage is a free-living larva that can enter the skin directly 3. On target to become the first parasite-caused human disease to be eradicated 4. Has an arthropod intermediate host 5. Traditional treatment involves winding the female worm around a matchstick 6. Infections can be prevented by not defecating on soill improving sanitation of soil 7. Female lays eggs around the anus of the host 8. Produce microfilaria that circulate in the blood 9. Has multiple larval stages and a snail intermediate host 10. Migrate…

What is the order of magnitude of 0,0076