Following parental cross and their expected progeny given in table

Parental cross	Expected progeny
A- AaBbCCDd X aaBBCcDD	I-   aabbccDd
B- AabbccDD X AaBbCcdd	II-  AAbbccDD
C- aaBbCCDd  X aabbCcDd	III- aabbCcDd
D- AabbccDD X AABbCcDd	IV-AaBBCcDD

Which of the correct matching of parental cross with their expected progeny?

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#Question id: 12103

#Unit 10. Ecological Principles

Which of the following is a good description of an ecological niche? 

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#Question id: 12104

#Unit 10. Ecological Principles

Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation?

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#Question id: 12105

#Unit 10. Ecological Principles

A species of fish is found to require a certain water temperature, a particular oxygen content of the water, a particular depth, a rocky substrate on the bottom, and a variety of nutrients in the form of microscopic plants and animals to thrive. These requirements describe its 

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#Question id: 12106

#Unit 10. Ecological Principles

Which of the following best describes resource partitioning?

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#Question id: 12107

#Unit 10. Ecological Principles

As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each species seeks prey at dawn in areas without the other species. However, where their ranges overlap the two-spot avenger beetle hunts at night and the three-spot hunts in the morning. When you bring them into the laboratory, their offspring behave in the same manner. You have discovered an example of

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#Question id: 12108

#Unit 10. Ecological Principles

Resource partitioning would be most likely to occur between