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Organism and population
One mark questions:
1. Define benthic Zone? 2. Define the term ecological factor? 3. Name only one intracellular parasite? 4. What is biome? 5. Name the type of interaction seen between whale and barnacles growing on its back?
Two mark question:
1. Distinguish between the following : ectoparasites and endoparasites? 2. What are the main functions of water vapours present in the atmosphere? 3. Explain the response of all communities to environment over time? 4. Define Allen's rule? 5. Explain brood parasitism with help of an example?
Three mark question:
1.Describe thermal stratification in a lake? 2. Explain population growth curve? 3. List any three ways of measuring population density of a habitat? 4. Differentiate between natality and morality? 5. Describe various type of age pyramids?
In moist temperate environments like New England, most plants are C3 plants. Describe what would happen to plant growth during a long summer drought in Central Massachusetts.
What is the explanation for the fact the most cells are small and have cell membranes with many convolutions.
q1. locate a pair of articles one from a professional journal and one from the popular press classically a news
The molarity of pure water is 55 moles/Liter. One mole of a substance contains 6E23 molecules. How many water molecules would be in a one liter container of water? How many free protons would be present in that container, assuming that the pH of pu..
Arabidopsis plants have 10 chromosomes (5 pairs) in their somatic cells. How many chromosomes are present in each of the following:
Given what you now know about chloroplasts, pigments and wavelengths, consider trees whose leaves turn yellow in the fall. What is happening in the leaves at the cellular and molecular levels?
a scientific calculator draws a mA of current from a 6.0V battery pack. In 20 mins of operation how many electrons flow through the calculator?
What is the circumference of their spherical world if they see the similar star on their meridian at altitudes of 23 degrees and 47 degrees respectively, and at the exact same time.
what is the bacteriologic standard for potable water? why is bacteriologic analysis of water directed at recognition
Rough-winged swallows will adopt the offspring of other swallows when parents are experimentally given these nestlings, just as lesser kestrels do when nesting on roof tops. This kind of similarity has a label; what is it and why might these two s..
a portion of a specific dna molecules consists of the following sequence of nucleotide triplets tac gaa ctt ggg tcc.
Currently the earth's atmosphere has more than 20% oxygen. What is the origin of that oxygen, and how has the content of the atmosphere changed over time?
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