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1. How do the rates of warming and cooling of land surfaces compare to the rates of warming and cooling of ocean surfaces?
2. Briefly describe an experiment via which an intron- exon arrangement can be determined.
3. Why are both FSH and LH required for follicles to synthesize estrogen? What are the roles of FSH and LH in male reproduction?
4. How could you determine the ovulation rate in a sow by looking at the ovarian structures?
5. What determine whether a type Ao spermatogonia remains a stem cell or enters the process of
6. What developing germ cells are located in the adluminal region of the seminiferous tubules? In the basal region spermatogenesis?
At what stage of meiosis do oocytes block at prior to the LH surge? After the LH surge? What causes completion of meiosis?
Be able to explain how a change in photoperiod results in loss of cyclicity in seasonal breeder animals at the end of the breeding season. (i.e., how does the responsiveness and sensitivity of the hypothalamus, pituitary and ovary change and what ..
Be able to draw the hormone profile (estrogen, progesterone, FSH, and LH) of the estrous cycle of the cow. Label the profile by the 4 phases (estrus, metestrus, diestrus and proestrus).
Understand why the same cells (granulosa and theca) of the follicle produce estradiol during the follicular phase, but progesterone during the luteal phase? Why? (hint: look at steroid synthesis pathway)
You collect the following data: plasma Na=144 mM, urine Na=200 mM, urine volume=36 mL in 30 minutes, and inulin clearance = 120 mL/min. What percentage of filtered Na is excreted?
Describe the evolutionary trends in animal reproduction and how these trends relate to the organism’s habitat and complexity.
Gas exchange and cellulare respiration, population and community, lungs and tracheal systems of insects, Oviparous and ovoviviparous
Genes A/a and B/b are linked and known to be 20 map units apart. Individuals heterozygous for both of these genes (genotypes= AB/ab) were mated with each other. If there 2000 offspring from this cross, how many of the offspring would you expect to sh..
A population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02. Estimate the number of individuals added to (or lost from) a population of 1,000 individuals in one year.
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. Explain the chemica..
Which of the following is a population.
You have a culture that contains 2.8 X 10^7 CFU/ml and you want to obtain a plate with approximately 30 colonies on it after spread plating 100 microliters. What dilution would you use?
Tryin to determine the independent and dependent variables for a biology question and the control group.
Why the shift from inpatient services, to outpatient services? What are the drivers of ambulatory health services in medical care and surgical care, i.e., the ambulatory surgery centers (ASC)?
List and depict at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
Explain what occurs during the Krebs (citric acid) cycle and electron transport by describing the following.
compare the relative size of the coelom with that ofthe mantle cavity in the freshwater clam.
What different types of enzymes are used to modify histones, and how do these enzymatic modifications lead to chromatin remodeling?
question 1 explain why only certain cell types are permissive for transcription of hiv proviral dna. what cellular
How do muscle fibers contract? Describe why ATP and metal ions are important. Describe the motor proteins, cytoskeletal elements, and other accessory proteins that are involved and what purpose each component serves.
A continuously growing population has a population size of 1,000 and an intrinsic rate of increase of r = 0.05 per year. Assuming that this rate of increase remains the same, about how long should it take for the population to reach 4,000?
question1 explain the challenges and advantages of having internal gills over external gills for gas exchange?question
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