STD 11 - 15. Body fluids and criculations — NEET STD 11 Science — Question

Urine is concentrated in which part of nephron

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.

A ruptured follicle in mammalian ovary after the release of ovum which latter gets fertilized, forms

The recently discovered hormones, melatonin and serotonin are secreted at ends of nerve fibres by the activity of

Which of the following fossil men had religious feelings of worship and used burial customs

The kidneys not only remove the waste products from the blood but also play a very important role in maintaining

What is not true for smooth muscle fibres?

Given effects due to ........

- Cancer of lung

- Bronchitis

- Gastric ulcer

- Emphysema

Operculum is present in.