The human organ that receives deoxygenated blood from the body is the:
A. Left ventricle
B. Right ventricle
C. Left atrium
D. Right atrium
Answer: Option D
Solution (By JKExamLibrary)
The right atrium receives deoxygenated blood from the systemic circulation via the superior and inferior vena cavae. It pumps blood to the right ventricle. The left atrium receives oxygenated blood from the lungs, the left ventricle pumps to the body, the right ventricle to the lungs.
Explanation:
A codon is a triplet of nucleotides in mRNA that codes for a specific amino acid or signals termination of translation. There are 64 codons; 61 code for amino acids and 3 are stop codons. Anticodons are on tRNA, exons are coding regions of DNA, introns are non-coding.
Explanation:
The radicle is the embryonic root, emerging first during germination, and develops into the primary root system. The plumule develops into the shoot, hypocotyl is below cotyledons, epicotyl above cotyledons. The radicle grows downward (positively geotropic) to anchor and absorb water.
Explanation:
Hydroponics is a method of growing plants in a water-based, nutrient-rich solution without soil. Aeroponics uses mist, geoponics is soil-based, tissue culture is in vitro on agar media. Hydroponics enables controlled nutrient delivery.
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