Fixed action pattern - A predictable series of actions triggered by a cue, sometimes called the key stimulus.

TLS Online TPP Program

#Id: 8097

#XL - T Zoology

Dipalmitoylphosphatidylcholine (DPPC) is the major lipid of lung surfactant, the protein–lipid mixture that is essential for normal pulmonary function.

TLS Online TPP Program

#Id: 9493

#XL - R Botany

TLS Online TPP Program

#Id: 9760

#XL - R Botany

Many plants release a specific bouquet of volatile organic compounds when attacked by insect herbivores. These volatiles can consist of compounds from all major pathways for secondary metabolites including terpenoids (mono- and sesquiterpenes), alkaloids (indole), and phenylpropanes (methyl salicylate), as well as green-leaf volatiles. 

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#Id: 10761

#XL - R Botany

Types of flowers

Hypogynous flower- The ovary in such flowers is said to be superior,  e.g., mustard, china rose and brinjal.

Perigynous flower- The ovary here is said to be half inferior. e.g., plum, rose, peach. (Rosaceae)

Epigynous flowers, the ovary is said to be inferior. e.g., guava and cucumber, and the ray florets of sunflower.

TLS Online TPP Program

#Id: 5493

#XL - T Zoology

If survival of juveniles and adult is poor - Selection favors a single act of reproduction