Infertility is the incapacity to conceive an offspring while erectile dysfunction is the incapacity to get aroused so as to engage in sexual intercourse (mostly in men).
Erectile dysfunction could be caused by stress, cardiovascular diseases, and diabetes. Therefore treating it requires maintaining a healthy lifestyle of nutrition and exercise.
Infertility can be caused by disorders of reproductive organs such as endometriosis and occlusion in the tubes. This can be treated by assisted reproduction (IVF), corrective surgery and education.
Functionalism. It is according to the concept 'survival of the fittest'
Answer:
1)Biodiversity of an area refers to the vast number of species of plants, animals and microorganisms existing in that area.
2)Fauna refers to animals, whereas flora refers to plants
3)Yes, I agree with the statement. Forests provide plant cover to check the flow of water. If forests are removed, then floods will occur.
4)False.
Endangered animals are those species whose numbers are diminishing at an alarming rate and face an immediate danger of extinction.
5)If all trees in a forest are cut, it will lead to erosion of soil.
6)Grazing by cattle should be controlled for forest conservation.
7)True.
Soil erosion is the removal of top layer of soil that is most fertile. If not checked, soil erosion ultimately leads to desertification.
8)The flora and fauna of a country are among the most important renewable natural resources.
9)Dinosaurs are extinct because no living member of this species is present on earth.
10)Wildlife conservation and forest conservation are closely related.
11)False.
A biosphere reserve comprises of three core areas: natural zone, buffer zone and transition zone. These zones are not present in a tiger reserve.
Explanation:
Peace
Asexual reproduction requires only one parent. Since there is only one parent, there is no exchanging of genetic information, and the offspring are clones of the parent. Asexual reproduction in plants can occur in a variety of forms, including budding, vegetative propagation, and fragmentation. Let's discuss these reproduction types.
Have you ever found an old potato hidden in the back of a cabinet in your kitchen? If a potato sits around for a long time, it will have many small growths, commonly referred to as 'eyes'. Each of these sprouts can be cut from the potato and planted. They will grow into a clone of the original plant that produced the potato. This is a classic example of budding.
For an example of vegetative propagation, let's look at the strawberry plant. If you plant strawberries, you will notice that a row of plants will quickly spread into a large mass of plants. This is because they do a type of vegetative propagation by producing runners. Strawberry plants send out horizontal stems known as stolons. These stems will work their way into the ground in places and form roots, and eventually a new plant will grow.
A third type of asexual reproduction in plants is called fragmentation. This type of asexual reproduction is often used by nurseries and greenhouses to produce plants quickly. For many plants, a clone can be created by breaking off a portion of the stem and placing it in soil or water, depending on the plant. This also happens naturally when small parts of a plant fall off onto the soil and begin to grow into a new plant. An example of fragmentation occurs in liverwort plants, whose small stems or leaves are often broken off by animals or wind and then grow into clones of the parent plant when they land in the soil. I hope this helps
14.) D
15.) C
I'm sitting in school right now I cannot really answer the rest.
