STD 12 - 8. microbes in human welfare — NEET STD 11 Science — Question

Experimental verification of the chromosomal theory of inheritance was done by

Which is true to Taenia

Which of the following statements are incorrect ?
(A) The embryo with 8 to 16 blastomeres is called a blastocyst.
(B) The blastocyst continues to divide and transforms into morula as it moves further into the uterus.
(C) The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.
(D) In implantation morula becomes embedded in the endometrium of the uterus.

Irritability and conductivity are maximum developed in

Which of the following statement(s) is/are correct regarding compound epithelium?

Assertion: The most distinctive feature of echinoderms is the presence of water vascular system.
Reason: Water vascular system helps in locomotion, capture and transport of food and respiration.

Induced abortion is

The process of release of urine is called micturition and the neural mechanisms causing it is called the micturition reflex.
(i) Urine formed by the nephrons is ultimately carried to the urinary bladder.
(ii) This signal is initiated by the stretching of the urinary bladder as it gets filled with urine.
(iii) In response, the stretch receptors on the walls of the bladder send signals to the CNS.
(iv) The CNS passes motor messages to initiate the contraction of smooth muscles of the bladder causing the release of urine.
Choose correct option which contain correct order of phenomena of micturation :-