Select correctly written scientific name of Mango which was first described by Carolus Linnaeus:

NEET-2019 [The-living-World] [class-xi ]

• Mangifera indica Car. Linn.
• Mangifera indica Linn.
• Mangifera indica
• Mangifera Indica
Correct Option: B  [ Mangifera indica Linn. ]

Remark:

Which of the following statements is incorrect ?

NEET-2019 [Biological-Classification] [class-xi ]

• Viroids lack a protein coat
• Infective constituent in viruses is the protein coat
• Viruses are obligate parasites
• Prions consist of abnormally folded proteins
Correct Option: B  [ Infective constituent in viruses is the protein coat ]

Remark:

Match the following organisms with their respective characteristics:

NEET-2019 [Animal-Kingdom] [class-xi ]

• (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
• (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
• (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
• (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
Correct Option: D  [ (A)-(III), (B)-(IV), (C)-(II), (D)-(I) ]

Remark:

Consider following features:
(A) Organ system level of organisation
(B) Bilateral symmetry
(C) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.

NEET-2019 [Animal-Kingdom] [class-xi ]

• Annelida, Arthropoda and Mollusca
• Annelida, Arthropoda and Chordata
• Arthropoda , Mollusca and Chordata
• Annelida, Mollusca and Chordata
Correct Option: B  [ Annelida, Arthropoda and Chordata ]

Remark:

Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is:

NEET-2019 [Morphology-of-Flowering-Plants] [class-xi ]

• Basal
• Free central
• Axile
• Parietal
Correct Option: D  [ Parietal ]

Remark:

Persistent nucellus in the seed is known as:

NEET-2019 [Morphology-of-Flowering-Plants] [class-xi ]

• Perisperm
• Chalaza
• Hilum
• Tegmen
Correct Option: A  [ Perisperm ]

Remark:

Which of the statements given below is not true about formation of Annual Rings in trees?

NEET-2019 [Anatomy-of-Flowering-Plants] [class-xi ]

• Annual ring is a combination of spring wood and autumn wood produced in a year.
• Differential activity of cambium causes light and dark bands of tissue - early and late wood respectively
• Annual rings are not prominent in trees of temperate region.
• Activity of cambium depends upon variation in climate.
Correct Option: C  [ Annual rings are not prominent in trees of temperate region. ]

Remark:

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in:

NEET-2019 [Structural-Organisation-in-Animals] [class-xi ]

• Bronchioles and Fallopian tubes
• Bile duct and Bronchioles
• Fallopian tubes and Pancreatic duct
• Eustachian tube and Salivary duct
Correct Option: A  [ Bronchioles and Fallopian tubes ]

Remark:

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:

NEET-2019 [Structural-Organisation-in-Animals] [class-xi ]

• Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum
• Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum
• Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum
• Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum
Correct Option: D  [ Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum ]

Remark:

The concept of "Omnis cellula-e cellula" regarding cell division was first proposed by:

NEET-2019 [cell-the-unit-of-life] [class-xi ]

• Theodore Schwann
• Schleiden
• Rudolf Virchow
• Aristotle
Correct Option: C  [ Rudolf Virchow ]

Remark: