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

Which one is wrongly matched?

In man, the composition of female destined zygote is

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called

Select correct statements :
(i) Benign tumours normally remain confined to their original location and do not spread to other parts of the body and cause little damage.
(ii) The malignant tumours are a mass of proliferating cells called neoplastic or tumour cells.
(iii) Tumours cells grow very rapidly, invading and damaging the surrounding normal tissues as it starve the normal cells by competing for vital nutrients.
(iv) Metastasis property is found in benign tumours.
(v) lonising radiations like X-rays and gamma rays and non-ionizing radiations like UV cause DNA damage leading to neoplastic transformation.
(vi) Cancer causing viruses called oncogenic viruses have genes called viral oncogenes.
(vii) Antibodies against cancer specific antigens are also used for detection of certain cancers.

The cervical vertebrae are characterised by the presence of

Pineal body originates from

Select the incorrect match

Compositae	-	Basal placentation
Brassicaceae	-	Parietal placentation
Malvaceae	-	Twisted aestivation
Poaceae	-	Vexillary aestivation

Hydra is

Choose the correct sequence for cranial menings. (Outer to inner)