In the southern hemisphere, the tundra includes Antarctica. The arctic tundra in the northern hemisphere includes parts of Russia, Iceland, Canada, Norway, Greenland, and Alaska (state in the US).
They Grab Information to gain Hypothesis , Then test it to get the Scientifical Answer for the problem.
Hope this helps... If not, correct me...
Answer:
The ability to reproduce on land without needing external water. (Ans. A)
Explanation:
Internal fertilization is defined as the process where, sperm is fertilizing the egg within the female reproductive tract. Internal fertilization helping in to protects the fertilized embryo from harsh environment, predation, and they are able to reproduce on land without any need of external water, which results as higher survival rates.
This fertilization includes 3 main methods for fertilization:
1) Oviparity: In this fertilization eggs are placed outside the female body and nourishment of embryo comes from the yolk which is a part of the egg.
2) Ovoviparity: In this process eggs held within female and nourishment is comes from the yolk.
3) Viviparity: In this process development of embryo occurs within female followed by live birth and nourishment is received directly from the mother with the help of placenta.
In internal fertilization, fertilized eggs are protecting from dehydration on land this is the advantage of this method of fertilization.
Mutualism is defined as a relationship that benefits two organisms, or it is defined as a doctrine in sociology where mutual aid is beneficial to society and the individual. ... An example of mutualism is a mutual relationship such as co-ownership of property where both parties benefit.
Answer:
Populations are made up of all the members of a species living in the same place at the same time. A community includes all the populations of the area. The community and the abiotic factors make up the ecosystem. An organism lives in its habitat within a community.
Explanation:
