Maximum Thrift is a method / philosophy that considers the shortest tree (in number of transformation steps) the best hypothesis about the phylogenetic relationship of a given set of terminals. Transformation step is the cost attributed to the change of character state in a given branch of the tree, be it the change from one nucleotide base to another, amino acids, or the color of an animal's iris. The fewer transformations, the shorter the tree, and therefore the more parsimonious. In this method, what programs do is to investigate as many alternative topologies as possible (or all if their array has less than 25 terminals; see more details below) given their character array. Each will be measured, and the shorter (optimal) trees will be retained as the most parsimonious result.
A, b, and c are all correct.
take for example finches off of the galapagos islands. they vary from island to island, yet are still the same bird. on one island they have bigger, more durable and stronger beaks, because that island has many nuts to crack open and eat. on another island, they have thin ling beaks, ideal for pecking at insects in the grass on tree bark. evolution is literally survival of the ifttest, where those equipped best will live and those without means to fight for life will die off, leaving those most capable of reproduction and passing down genes.
Answer: yes it is I think
Explanation:
The shortening and broadening of pelvis in hominins was the indicative of habitual bipedal locomotion.
Hominins are the tribe that belong from the sub-family Homininae. They are considered as the first modern humans. They are believed to be our recent ancestors. Homo sapiens species is evolved from this tribe. The various anatomical evolutions in them were: erect posture , larger brains, bipedal motion, broadened pelvis, usage of tools and also they were known for communication.
Pelvis is the area between the lower abdomen and the hip bone. It comprises of bladder and rectum. Some of the reproductive organs of the males and females are also located in their respective bodies.
To know more about Hominins, here
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