Question Count: 573

Question:

State true or false

Dilute urine is profusely eliminated by a person affected with Diabetes Insipidus.

Life Science Animal Tissues WBBSE 1 2019

Answer:

True

Question ID: 573

Uploaded on: October 11, 2024

Question:

State true or false

The Carpel of flowering plants collect pollen grains with the help of a hairy and sticky style.

Life Science Reproduction WBBSE 1 2019

Answer:

False. Explanation The carpel of a flowering plant is made up of three parts: the stigma, the style, and the...

Question ID: 574

Uploaded on: October 11, 2024

Question:

State true or false

A pair of sex-determining sex chromosomes are present in the ovum of humans.

Life Science Reproduction WBBSE 1 2019

Answer:

False. Explanation The ovum of a human only contains one sex chromosome, which can be either an X chromosome or...

Question ID: 575

Uploaded on: October 11, 2024

Question:

State true or false

According to Darwin organisms reproduce at a geometric ratio. 

Life Science Evolution WBBSE 1 2019

Answer:

True

Question ID: 576

Uploaded on: October 11, 2024

Question:

State true or false

One-horned rhinoceros is conserved at Manas National Park of West Bengal.

Life Science Biodiversity and Its Conservation WBBSE 1 2019

Answer:

False. Explanation The one-horned rhinoceros is conserved at Kaziranga National Park in Assam, India.

Question ID: 577

Uploaded on: October 11, 2024

Question:

State true or false

Acetylcholine and adrenaline are neurotransmitters.

Life Science Animal Hormones WBBSE 1 2019

Answer:

True

Question ID: 578

Uploaded on: October 11, 2024

Question:

Match the words in column A with the most appropriate words in column B and re-write the correct pair mentioning the serial no. of both columns (any five):-  [1 × 5=5]

Column A Column B
1. Presbyopia a) BbRr
2. Cell Differentiation Phase of Growth b) Haldane
3. Genotype of Guinea-pig having black and coarse hair c) Near vision is defective
4. Hot Dilute Soup d) Change of climate and global warming
5. Destruction of forests and erosion of the ecosystem e) Formation of spindle fibre during animal cell division
6. Centrosome f) Formation of tissue, organ and system
g) bbrr

Life Science Nervous System WBBSE 5 2019

Answer:

1 - (c). 2 - (f). 3 - (e), 4 - (b), 5 - (d), 6 - (e)

Question ID: 579

Uploaded on: October 11, 2024

Question:

Chose the odd one and write it– Glossopharyngeal, Oculomotor, Trigeminal, Oxytocin

Life Science Animal Hormones WBBSE 1 2019

Answer:

The odd one out is oxytocin. The other three are cranial nerves, while oxytocin is a hormone.

Question ID: 580

Uploaded on: October 11, 2024

Question:

What is the function of the fluid present in the intermediate chamber between lens and retina of the eyeball?

Life Science Nervous System WBBSE 1 2019

Answer:

Acts as Refactory medium or maintain pressure or, maintain the shape of the eyeball.

Question ID: 581

Uploaded on: October 11, 2024

Question:

A pair of related terms is given below. On the basis of the relationship in the first pair write the suitable Word in the gap of the second pair.

Grafting: Mango: ____: China Rose

Life Science Reproduction WBBSE 1 2019

Answer:

Grafting : Mango : : Cutting: China Rose.

Question ID: 582

Uploaded on: October 11, 2024

Question:

What is the cause of expression of haemophilia disease only at homozygous conditions?

Life Science Heredity WBBSE 1 2019

Answer:

It is caused due to a recessive gene.

Question ID: 583

Uploaded on: October 11, 2024

Question:

Write the genotypic ratio obtained at 2nd filial generation in the monohybrid experiment done by Mendel?

Life Science Heredity WBBSE 1 2019

Answer:

1 : 2 : 1

Question ID: 584

Uploaded on: October 11, 2024

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