The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.

Which of the five common ancestors, labeled V—Z, has been least successful in terms of the percent of its derived species that are extant?

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#Question id: 3590

#Unit 8. Inheritance Biology

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: 11343

#Unit 2. Cellular Organization

In the liver, which type of GLUT transports glucose out of hepatocytes when liver glycogen is broken down to replenish blood glucose?

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#Question id: 12288

#Unit 10. Ecological Principles

One way  to  understand how  early environment influences differing behaviours in  similar  species is  through the ? cross- fostering? Experimental technique. Suppose that the curly- whiskered mud rat differs from the bald mud rat in several ways, including being much more aggressive. How would you set up a cross- fostering experiment to determine if environment plays a role in the curly- whiskered mud rat's aggression?

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#Question id: 11363

#Unit 10. Ecological Principles

Competition among individuals belonging to the same species is referred to as _________ competition.

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#Question id: 27940

#Unit 9. Diversity of Life Forms

Sibling species are those species which is___