human impact on environment, Biology

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Difference between other eukaryotic cells ? Cell Wall :  In addition to the presence of photosynthetic plastids, another significant difference between other eukaryotic cell

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NAILS - Cover terminal segment of fingers & toes. Highly vascular dermis under lying the nail is called nail bed . It gives pinkish colour to nail. The small part

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What is hemoglobin F? Why does the fetus need a different hemoglobin? Hemoglobin F is the hemoglobin found in the mammalian fetus and hemoglobin A is the normal hemoglobin. Hem

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In humans, maleness or femaleness is determined by a pair of sex chromosomes called X and Y.    (a) What is the genotype for males?    (b) What is the genot

Blastulation, BLASTUL A TIO N - Type of blastula is blastocyst or...

BLASTUL A TIO N - Type of blastula is blastocyst or trophoblastula. Outer layer of cell becomes flat and form trophoblast or trophoectoderm which receives nutritive ma

What are the digestive functions of the liver, What are the digestive funct...

What are the digestive functions of the liver? Besides making bile for release in the duodenum, the liver has other digestive functions. The venous network that absorbs nutr

Explain dna binding domains, Helix-turn-helix This  motif  have  of  tw...

Helix-turn-helix This  motif  have  of  two    -helices  divided  by  a  short  (four-amino   acid) peptide  sequence  which  forms  a   -turn that shown in above figure.  When

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What is meant by saying that in relation to a given trait conditioned by a gene with two different alleles the gametes are always "pure"? To say that gametes are pure means tha

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Q. Are body planes important for identifying anatomical structure? In order to observe and study structural arrangement of the internal organs, body may be divided and sectione

Skeletal tissue - bone, BON E - Bone is the hardest tissue in the ...

BON E - Bone is the hardest tissue in the body and supports various organs. The inorganic salts present in the matrix are calcium phosphate, calcium carbonate, calci

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