Question

As discussed in class, there are three types of microbial colonization into desert pavements: epilith, endolith,...

As discussed in class, there are three types of microbial colonization into desert pavements: epilith, endolith, and hypolith. Speculate what physical, chemical, biological,and climatic factors determine which colonization is predominant?

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Epilith grows on the surface of the rocks.

An endolith is an organism (archaeon, bacterium, fungus, lichen, alga or amoeba) that lives inside the rock, coral, animal shells, or in the pores between mineral grains of a rock.

a hypolith is a photosynthetic organism, and an extremophile, that lives underneath rocks in climatically extreme deserts such as Cornwallis Island and Devon Island in the Canadian high Arctic.

Thus in deserts, in the rocks i.e in the extremely dry conditions and at very high temperatures epilith founds its way on the surface of the rocks, endolith can grow within the pres of the rocks and hypolith grows under the rocks.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Given the three primary types of unemployment we discussed in Lecture #17, it makes sense...
1. Given the three primary types of unemployment we discussed in Lecture #17, it makes sense to think of the natural rate of unemployment as the sum of _____ and _____ unemployment. A. cyclical; natural rate of B. cyclical; frictional C. frictional; structural D seasonal; structural 2. Which of the following statements most accurately reflects the Bureau of Labor Statistics’ (BLS) calculation of its standard, U-3, the unemployment rate? A. The labor force includes all adults who are physically and...
Consider the following three types of government failure discussed in chapter 11: a. rent seeking behavior...
Consider the following three types of government failure discussed in chapter 11: a. rent seeking behavior b. informational problems c. regulatory capture Decide for the next two questions, which type of government failure does the example best fit: 36. The Interstate We Protect You Commission (IWPYC) was created with the original purpose of protecting consumers from the monopoly power of the auto companies. Now the IWPYC members are all auto company executives, and the IWPYCA now protects existing automobile manufacturers...
Consider executing the following code on the pipelined datapath that we discussed in class. a). During...
Consider executing the following code on the pipelined datapath that we discussed in class. a). During the 5th cycle, which registers are being read and which register(s) will be written (using the register file)? b). Explain what the forwarding unit is doing during the 5th cycle of execution. Which registers are being compared? List all pairs of registers that are compared during the 5th cycle for the forwarding unit. (First, you need to determine which instruction's values are in the...
For an ideal solution, we discussed in class that the chemical potential is given by: μ=μ_0+RT...
For an ideal solution, we discussed in class that the chemical potential is given by: μ=μ_0+RT "ln" (c/c_0 ) where the units of µ written in this form are Joules/mole. The concentration c_0 is a reference concentration, which we will take to be 1 Molar for this problem. Suppose solution 1 with solute concentration of 1 mM (i.e., 1 x 10-3 Molar) is in contact with solution 2 with solute concentration of 0.1 mM (i.e., 1 x 10-4 Molar). If...
Round Tree Manor is a hotel that provides two types of rooms with three rental classes:...
Round Tree Manor is a hotel that provides two types of rooms with three rental classes: Super Saver, Deluxe, and Business. The profit per night for each type of room and rental class is as follows: Rental Class Super Saver Deluxe Business Room Type I (Mountain View) $35 $40 - Type II (Street View) $25 $35 $45 Round Tree's management makes a forecast of the demand by rental class for each night in the future. A linear programming model developed...
1.      Why are tropical rain forests so interesting to scientists and so potentially variable to human society?...
1.      Why are tropical rain forests so interesting to scientists and so potentially variable to human society? 2.      Explain how varying combinations of temperature and precipitation along with global air circulation and ocean currents, lead to the formation of various types of forests, grasslands, and deserts. 3. Why do cities tend to have more haze and smog, higher temperatures, and lower wind speeds than the surrounding countryside? 4.      Explain why there are three major types of each of the major biomes (deserts, grasslands,...
CRIMINAL JUSTICE Are there any types of everyday behaviors that you can think of that might...
CRIMINAL JUSTICE Are there any types of everyday behaviors that you can think of that might be useful or functional in the lower classes, but would not serve that same purpose for those of higher socio-economic standing? What about interactions with peers, teachers, and other authorities? Were Cloward and Ohlin correct about the presence of an illegal opportunity structure and its greater availability to the lower classes? Given today’s criminological treatment of white-collar crime, is there different access to white-collar...
1.What are the three main factors that determine the capital cost of a piece of equipment...
1.What are the three main factors that determine the capital cost of a piece of equipment such as a heat exchanger at a given time? 2.What is the Chemical Engineering Plant Cost Index (CEPCI) used for, and what does it measure? 3.What is the difference between the total module cost and the grassroots cost of a chemical process? 4.When would you use a cost exponent of 0.6? 5.What is meant by the economy of scale? 6.What is a Lang factor?...
Remington Textiles has a mill that produces three types of fabrics on a make-to-order basis. The...
Remington Textiles has a mill that produces three types of fabrics on a make-to-order basis. The mill operates on a 24/7 basis. The key decision facing the plant manager is about the type of loom needed to process each fabric during the coming 12 weeks to meet demands for the three fabrics and not exceed the capacity of the looms in the mill. Two types of looms are used: Jaquard and Northrop. Jaquard looms can be used to make all...
Remington Textiles has a mill that produces three types of fabrics on a make-to-order basis. The...
Remington Textiles has a mill that produces three types of fabrics on a make-to-order basis. The mill operates on a 24/7 basis. The key decision facing the plant manager is about the type of loom needed to process each fabric during the coming 12 weeks to meet demands for the three fabrics and not exceed the capacity of the looms in the mill. Two types of looms are used: Jaquard and Northrop. Jaquard looms can be used to make all...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT