Darwin’s evolutionary theory - Common descent

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#Id: 9862

#XL - R Botany

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#Id: 10608

#XL - R Botany

Homosporous and Heterosporous

Homosporous develops into a bisexual gametophyte example; ferns

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#Id: 9431

#XL - T Zoology

Bateman put several males and females together in bottles for several days. 

He concluded that the number of offspring sired by a male increased in proportion to the number of females he mated.

In contrast, the number of offspring produced by a female did not increase with the number of males she mated.

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#Id: 8119

#XL - Q Biochemistry

The triterpenes are C30 terpenes and include squalene and lanosterol, two of the precursors of cholesterol

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#Id: 9495

#XL - R Botany