Biology - Online Test

Q1. How many fatty acids occur in a lipid (fat) molecule
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. Tracheal tube divides into right and left bronchi at the level of :
Answer : Option A
Explaination / Solution:

Trachea divides at the level of 5th thoracic vertebra into a right and left primary bronchi.

Q3. Best method to increase crop yield is
Answer : Option D
Explaination / Solution:

Crop production can be increased by adopting a number of methods like using seeds of improved varieties, using modern method of agriculture, using fertilizers and pesticides. An improved seed variety is most important for better yield.

Q4. Which of the following regio n has maximum biodiversity
Answer : Option B
Explaination / Solution:
No Explaination.


Q5. Which of the following are found in extreme saline conditions?
Answer : Option A
Explaination / Solution:
No Explaination.


Q6. Speciation maintains biodiversity
Answer : Option C
Explaination / Solution:

Speciation, the formation of new and distinct species in the course of evolution. Speciation involves the splitting of a single evolutionary lineage into two or more genetically independent lineages. Speciation maintains biodiversity both at species level and community level. New species develop from older species due to variation having more adaptive in changed habitat. Add image here

Q7.

Which one of the following is not related to vermiculture?

a. Maintains soil fertility

b. Breakdown of inorganic matter

c. Gives porosity, aeration and moister holding capacity

d. Degradation of non biodegradable solid waste

Answer : Option C
Explaination / Solution:
No Explaination.


Q8. Right to Clean Water is a fundamental right, under the Indian Constitution
Answer : Option B
Explaination / Solution:
No Explaination.


Q9. Which phylum contain acoelomic and triploblastic animals?
Answer : Option C
Explaination / Solution:

Those animals in which the developing embryo has a three germinal layer, mesoderm in between the ectoderm and endoderm, are called triploblastic animals and absence of internal body cavity is called as acoelomic.

Q10. Flower is the site of
Answer : Option A
Explaination / Solution:

Sexual reproduction in flowering plants centres around the flower. Within a flower, there are usually structures that produce both male gametes and female gametes.