Question

1. List down atleast five physical laws that governed life.
2. Draw a flow chart on the body’s organization. (Your effort will be appreciated.Thanks)

Answer 1

Dollo's law of irreversibility, proposed in 1893 by French-born Belgian paleontologist Louis Dollo states that "an organism never returns exactly to a former state, even if it finds itself placed in conditions of existence identical to those in which it has previously lived. it always keeps some trace of the intermediate stages through which it has passed.

Gause's law or the competitive exclusion principle, named for Georgy Gause, states that two species competing for the same resource cannot coexist at constant population values. The competition leads either to the extinction of the weaker competitor or to an evolutionary or behavioral shift toward a different ecological niche

Van Valen's law states that the probability of extinction for species and higher taxa (such as families and orders) is constant for each group over time; groups grow neither more resistant nor more vulnerable to extinction, however old their lineage is. It is named for the evolutionary biologist Leigh Van Valen

Williston's law was discovered by Samuel Wendell Williston, states that parts in an organism tend to become reduced in number and greatly specialized in function. He had studied the dentition of vertebrates, and also noted that where ancient animals had mouths with differing kinds of teeth, modern carnivores had incisors and canines specialized for tearing and cutting flesh, while modern herbivores had large molars specialized for grinding tough plant materials.

von Baer's laws was discovered by Karl Ernst von Baer, state that embryos start from a common form and develop into increasingly specialised forms, so that the diversification of embryonic form mirrors the taxonomic and phylogenetic tree. Therefore, all animals in a phylum share a similar early embryo; animals in smaller taxa (classes, orders, families, genera, species) share later and later embryonic stages.

This is the chart of body organisations