STD 11 - 14. Breathing and exchange in gases — NEET STD 11 Science — Question

Which of the following is a once-a-week pill with very few side effects and high contraceptive value?

Select the Incorrect match:

Frog is

Mendel conducted experiments for

Which of the following statement(s) is/are true for menstrual cycle ?
(i) It occurs in female of all mammals,
(ii) In human non-pregnant normal females, ovulation is repeated at an average interval of about 28/29 days.
(iii) In human beings, ovulation cycles ceases around 50 years of age, that is termed as menopause.
(iv) Lack of menstruation is always an indicator of pregnancy.
(v) Menstruation only occurs if the released ovum is fertilised.
(vi) Menarche may also be due to stress, poor health.

The excretory organs of flatworms are

The pituitary hormones regulate the growth and development of somatic tissues and activities of peripheral endocrine glands. Select correct pair :
(i) Prolactin-Child birth and milk ejection.
(ii) ACTH-Mineralocorticoid.
(iii) LH and FSH-Androgens.
(iv) FSH-Spermatogenesis and follicular development
(v) LH-Ovulation and maintains the corpus luteum
(vi) MSH-Pigmentation of the skin
(vii) Oxytocin-Growth of the mammary glands and formation of milk in them
(viii) Vasopressin-Antidiuretic hormone (ADH)

Which one of the following is not a biofertiliser?