Question 11 MarkNon-striated muscles bring about contraction and relaxation of heart.AnswerFalse. Cardiac muscles bring about contraction and relaxation of heart.View full question & answer→
Question 21 MarkBroiler chickens are raised for eggs.AnswerFalse. Broiler chickens are raised for meat.View full question & answer→
Question 31 MarkStratified squamous epithelium is present in inner surface of mouth, oesophagus, blood vessels and alveoli.AnswerFalse. Stratified squamous epithelium is present in the outer layer of skin.View full question & answer→
Question 41 MarkPhloem consists of thick-walled dead cells.AnswerFalse. Phloem consists of living cells containing cytoplasm.View full question & answer→
Question 51 MarkRhode Island Red, New Hampshire, Plymouth Rock, Black Rock are varieties of chicken reared for both eggs as well as meat.Answer1View full question & answer→
Question 61 MarkThe silk thread is formed from the secretion of the sweat glands of silkworm.AnswerFalse. The silk thread is formed from the secretion of the salivary glands of silkworm.View full question & answer→
Question 71 MarkRare and endangered plants can be grown by tissue culture and can be protected from extinction.Answer1View full question & answer→
Question 81 MarkIn a bioreactor, cells can be grown in a more nutritive medium and protected from pathogens.Answer1View full question & answer→
Question 91 MarkDue to use of seeds of GM crops, there is decrease in nutritive value and increase in loss of crops.AnswerFalse. Due to use of seeds of GM crops there is improvement in nutritive value and decrease in loss of crops.View full question & answer→
Question 101 MarkLateral meristem increase girth(diameter) of the root and stem.Answer1View full question & answer→
Question 111 MarkChloroplast is present in permanent tissue.AnswerFalse. Chlorenchyma is present in permanent tissue.View full question & answer→
Question 121 MarkStriated muscles are also called involuntary muscles.AnswerFalse. Striated muscles are also called voluntary muscles.View full question & answer→
Question 131 MarkChlorenchyma helps the plant to float in water.AnswerFalse. Aerenchyma helps the plant to float in water.View full question & answer→
Question 141 MarkGlandular epithelium is present in kidneys.AnswerFalse. Cuboidal epithelium is present in kidneys.View full question & answer→
Question 151 MarkSimple squamous epithelium is present in the respiratory tract.AnswerFalse. Ciliated columnar epithelium is present in respiratory tract.View full question & answer→