SUHAIB NAZIR

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What are the directions for the study of the phylum PORIFERA(sponges)?

The sponges are structurally primitive animals, very ancient as a group and only distantly related to the animals of other groups. They a...
What is oogenesis?

• Definition: The process of maturation and differentiation of PGC to oogonia, primary oocytes, secondary oocytes and to mature ova in the ...
what are the Levels of organisation?

Though all the members of animalia are multicelluler,all of them do not exhibit the same pattern of organisation of cells. for example, in ...
From spider males and their allegedly numb genitalia

Thinking about how animals mate, one might at first think about the way that mammals do it. But what do we know about how other animals re...
Development of human beings

Development is the process where someone or something grows or changes and becomes more advanced.Human development is a continuous process ...
What are genes?

• Genes are carriers of blueprints for formation of cells, tissues, organs, and organism. Genes are made up of a nucleic acid called deoxyr...
What is gametogenisis?

The process of formation of gametes is called “gametogenesis”. The gametes are derived from primordial germ cells/ primitive sex cells. ...
what Zoology actually means?

Zoology is the branch of biology that studies the animal kingdom,including the structure, embryology,evolution,classification,habits and di...
What is embryology?

• It is the science that deals with the processes and regulations in the prenatal growth and development of an organism/individual in the f...
Basis of classification

Inspite of differences in structure and form of different animals,there are fundamental features common to various individuals in relation ...

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What are the directions for the study of the phylum PORIFERA(sponges)?

The sponges are structurally primitive animals, very ancient as a group and only distantly related to the animals of other groups. They a...
What is oogenesis?

• Definition: The process of maturation and differentiation of PGC to oogonia, primary oocytes, secondary oocytes and to mature ova in the ...
what are the Levels of organisation?

Though all the members of animalia are multicelluler,all of them do not exhibit the same pattern of organisation of cells. for example, in ...