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1. Fungi in the soil form a symbiotic association with roots. These fungi create a large surface area associated with the root hairs that helps to do which of the following?
a) aid in absorbing minerals and ionsb) maintain turgor in the root epidermal cellsc) provide sugar to the rootsd) anchor the plant2. Carbon dioxide released by the root hairs helps plants take up positively-charged ions. What process produces the CO2 that root hairs release into the soil?
a) mycorrhizae b) transpiration c) respiration d) photosynthesis3. Which of the following mechanisms help plant roots acquire negatively-charged ions?
a) proton pumps and co-transportersb) passive diffusion of the anions along electrochemical gradientsc) small amounts of clay in the soild) leaching of ions from soil water
q1. when testing for starch we used water starch suspension onion juice and potato juice and glucose solution as
1. why does ice float?your response should be at least 75 words in length. you are required to use at least your
Overview the keratin family. Things like how many proteinsare in this family (names, locations), what they do, which tissues express them
Several traits are affected by the environment, but also have a genetic component. How can we partition the sources of variation? Write a formula for this.
Red wolves, which are rare, can mate with coyotes, which are not rare, and produce hybrids upon reaching sexual maturity. For the sake of argument, we will call the hybrids "wolyotes".
A Western Blot (immunoblot) can be used as both a direct and as an indirect test. Explain how, comparing it first to a direct ELISA, and then to an indirect ELISA. Where do the antibodies and antigens come from in each case? What information does ..
Breathing Rate increasesas Power raise. However, it is not expectedto increase linearly throughout the Power domain. Explain how BR increased as Power increased
In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red : 2 roan : 1 white?
A female member of an animal species has a diploid chromosome number of 28, How many chromosomes in a spermatogonia?
B. Viruses initiate a process that is similar to autophagy. Describe this process and how the virus uses cellular products of autophagy.
The diffusing capacity of a gas is the volume of gas that will diffuse through a membrane each minute for a pressure difference of 1 mmHg.
In a cross between two cultivated inbred varieties of tobacco, the variance in leaf number per plant in the F1 generation was 1.46 and in the F2 generation it was 5.97.
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