2. Developmental Biology has made substantial contributions to the field of Evol

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2. Developmental Biology has made substantial contributions to the field of Evolutionary Biology, providing tools that allow us to mechanistically study Darwin's concept of "Descent with Modification". This combination of Developmental and Evolutionary Biology has become its own discipline, Evo-Devo. The phenomena of heterotropy, heterochrony, heterometry, and allometry can combine in a variety of ways to bring about generational variation in a species that can, in conjunction with natural selection, result in evolutionary changes. We discussed "Darwin's Finches" as an example of this. A) Define each of these terms: Heterotropy Heterochrony Heterometry Allometry B) Provide a description of how an animal such as a hippopotamus might have given rise, over many generations, to animals like whales and dolphins

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2)

Ans A)

Heterotrophy = A heterotroph is an organism which cannot produce its own food. They rely on the other organism for the intake of food. Organic carbon is the obtained by the heterotrops by the consumption of plants that is primary consumers/ producers.

Heterochrony = It is the developmental change with respect of time that change in the size and shape.

Heterometry = It is the photometric study of chemical reaction with a quantitiative view. It has a linear relationship between quantity of material and the light absorbtion in basic condition.

Allometry = It is a study of relationship of body size to shape in anatomy, physiology and behaviour with a particular statistical analysis.

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