Advertisements
Advertisements
प्रश्न
The eggs of frogs do not have shells for protection, yet they are safe in water, how?
Advertisements
उत्तर
Frog’s eggs are without any external covering or shell but a layer of jelly hold the eggs together, thus providing them protection.
This jelly or gelatinous covering also protects them from drying up and prevents them from being eaten up by other animals or predators.
APPEARS IN
संबंधित प्रश्न
Differentiate between the following pair:
Efferent duct and sperm duct
One egg is released from each of the two ovaries every month.
The following diagram represents the vertical sectional view of the human female reproductive system.
How does the uterus prepare for the reception of zygote?
What is fertilization? Name the site of fertilization in the human females.
Give Reasons
The urethra is also called urinogenital duct.
Give Technical Term:
Rupture of the follicle and release of the ovum from the ovary.
Give any four significances of fertilization in humans.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
Which enzyme digests a localized hole in the zona pellucida to allow sperm entry?
What is the term used to describe the fusion product of male and female pronuclei?
