Limited resources cause tradeoff between investment in reproduction and survival. There is two Animal species with similar size present at same habitat but different their life history as a following. 

A Species   -   Later age at first reproduction

B Species –    Large clutch size and low survival of offspring and adult

There is above species should be

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#Question id: 19365

#Unit 13. Methods in Biology

Which vectors carry the longest foreign DNA fragments?

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#Question id: 5779

#Unit 8. Inheritance Biology

Changing the codon AGC to AGA represents a ____ mutation.

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#Question id: 4162

#Unit 3. Fundamental Processes

Which statement is false concerning aminoacyl-tRNA synthetase?

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#Question id: 11001

#Unit 7. System Physiology – Animal

In which phase of the ventricular muscle action potential is the potassium permeability the highest?

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#Question id: 2856

#Unit 2. Cellular Organization

Match the lac genes with their enzymes & functions;

lac genes	Enzyme	Functions
lacZ	b-galactosidase	which rids the cell of toxic thiogalactosides that also get transported in by lacY.
lacY	thiogalactoside transacetylase	which cleaves the sugar lactose into galactose and glucose, both of which are used by the cell as energy sources
lacA	lactose permease	a protein that inserts into the cell membrane and transports lactose into the cell