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1. In compost tea made by incubation dry leaves in sterile water, many aquatic life forms can be detected after 2-3 weeks old. Where did these and other microbes com from? Were they present at the start?
2. Eastern hognose snakes (Heterodon platirhinos) are dietry specialists feeding almost exclusively on toads of the genus Anaxyrus. If you conducted a study of these species at Rock Bridge State Park would you expect the number of snakes in your study area to be large, smaller, or the same as the number of todas? What relationship would you expect in the biomass of the two species? Explain your answer.
Estimate what would happen to body cells if surrounded by each of Isotonic, Hypertonic? Explain your reasoning?
Erma and Harvey were a compatible barnyard pair, but a curious sight. Harvey's tail was only 6 cm while Erma's was 30 cm. Their F1 piglet offspring all grew tails that were 18 cm.
A microscope has a field diameter of 2,000 microns under a total low power magnification of 100 X. This microscope has a 10X power ocular. Given this information, reply the following questions that appear below.
Explain the general function of Respiratory system and discuss how the Respiratory system contributes to the physiological homeostasis of the human organism?
Crocodiles of the Nile often attack and kill large animals (such as wildebeest) by dragging them under the water and drowning them! Crocodiles can do this because they have the amazing ability to stay under the water for an hour or more.
Create a pure-breeding double-mutant apricot, blunt line and cross it with wild-type wasps. The F 1 is wild-type in appearance.
If we ignore the possibility of crossing over, how many different combinations of chromosomes are probable in gametes of a single human.
Find out the genotypes of the parents and their pups. Use Punnett Squares to demonstrate your answers. What did Mendel observe in the F2 offspring that showed him that alleles for seed shape segregate separately of those for seed colour.
Discuss how does hyperventilation disturb the HCO/H2CO3 equilibrium? Does it result in acidosis or alkalosis? What would be kidney do in this condition?
If you started a PCR protocol with 10 double stranded molecular of DNA, Determine how many double stranded molecules of product would you have after 5 cycles of PCR?
What are the expected frequencies of three phenotypes (bald, red hair, yellow hair) in the male offspring of this cross? Imagine we observe 50 percent bald, 42 percent yellow hair, and 8 percent red hair. What is a recombination fraction between the ..
Face and body creams that are marketed to women in order to "rejuvenate the skin, and get rid of the fine lines and wrinkles" consists of large quantities of collagens.
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