Answer:
Option (a).
Explanation:
Phylogentic tree may be defined as the the diagrammatic representation of the evolutionary relationship of the organism. The phylogenetic trees are made on the hypothesis and do not explain any fact.
The branching in the phylogenetic tree determines the evolution of the species from the common ancestor. The common ancestor is located at the base of the phylogenetic tress. Since, Ardipithecus ramidus is located at the base it shows that Ardipithecus ramidus is a common ancestor.
Thus, the correct answer is option (a).
Kool if you know what I mean
Answer:
Annelida.
Explanation:
The non chordate organisms are classified into 10 different phylum. These organisms are classified into different phylum by looking at the similarities and differences shown by the organism.
The organisms that are involved in the phylum annelids shows the distinguish characteristics of the organisms of other phylum. The organism shows closed circulatory system, body is segmented and no mantle cavity is present. They are true coelomic animal, shows protostomic development in which mouth develops first and anus later. They have appendages that are not jointed with each other.
Thus, the correct answer is option (d).
Answer:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels globally as well as locally that puts the everything on risk.
Explanation:
Many nations are coming together with a common goal to fight with the climate change and its various impacts on the global level, is a very good initiative for the better future and human well fare.
Humans are continuosly exploiting the natural resurces and influencing the climate by increasing green gases which increases the temperature of the earth by buring fossil fuels, deforsting, industrilizing and many more direct and indirectly. This is not occur in local level alone but it is golbal problem which result in climate change, melting of glacier increasing sea level and manny more.
