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

Presence of which of the following in urine indicates that person is suffering from diabetes mellitus

Random genetic drift in a population probably results from

In birth control methods, which one is an intra-uterine device?

Signals for parturition originate from

Radial symmetry occurs in

Assertion: An excessive loss of fluid from the body stimulate the hypothalamus to release antidiuretic hormone (ADH) or vasopressin from the neurohypophysis which prevents diuresis.
Reason: ADH facilitates water reabsorption from latter parts of the tubule.

Red muscle fibres are rich in

Read the following and choose the option with all incorrect statements.
(i) The number of parathyroid gland present in human is four.
(ii) Parathyroid hormone decreases the Ca²⁺ levels in the blood and so its called hypocalcemic hormone.
(iii) Thymus glands secretes the peptide hormones called thymosins.
(iv) Adrenaline and nonadrenaline hormones are commonly called catecholamines, secreted by cortex part of adrenal gland and are called emergency hormones.
(v) The adrenal cortex can be divided into three layers called zona reticularis (outer layer); zona glomerulosa (middle layer) and zona fasciculata (inner layer). It secretes many hormones commonly called as corticoids.
(vi) The corticoids involved in carbohydrate metabolism are called glucocorticoid.
(vii) In our body, cortisol is the main glucocorticoid.
(viii) Aldosterone is the main mineralocorticoid in our body.
(ix) In pancreas, the α-cells secrete a hormone called glucagon, while ẞ-cells secrete insulin.
(x) Glucagon is peptide hormone which decrease blood sugar level and so called hypoglycemic hormone.