Answer:
Some animals weather rocks by scraping them as they feed. Other animals change Earth's surface by burrowing into it and moving material. Too many animals in one place can destroy most of the plants, leading to faster erosion.
If too many animals graze the same land area, the animals’ hooves pull plants out by their roots. A land is overgrazed if too many animals are living there. Grazing animals can cause erosion if they are allowed to overgraze and remove too much or all of the vegetation in a pasture.
Explanation:
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Yes, the pinch of the top of plant in growing time by cutting through apical meristem is helpful for creating the cells and it is also helpful for growth of plant and for the increase in the yield of garden.
Explanation:
Apical meristem is below the surface of the branches and also the roots. Some cells are divided through this process but some other cells are differentiated and divided into structural or vascular cells. There are mainly two types of apical meristems based on its location present in plant. The root apical meristem and shoot apical meristem.
The process of natural selection is a part of the evolution process. Let's take a herd of animals that live together so as to defend themselves and survive. If animals from the herd don't live by herd rules or similar, they will get eaten by predators or die. In time, the rebellious animals will die out leaving only those that live as a herd, and this trait will be transferred to their off-springs who will in turn behave as the herd too.
Answer:
They have uncoiled to form long, thin strands.
Explanation:
Chromosomes are present in cell nucleus and consist of chromatin. Genes are present in linear order on chromosomes. The chromosomes become visible under the microscope as distinct structures during cell division. When cells are not dividing, the chromosomes decondense to loose their individuality and make the mass of chromatin.
Chromatin is complex of DNA and packing proteins. As the cells enter the prophase stage of cell division, condensation of chromatin occurs and individual chromosomes become visible under microscope. Before that (during interphase), chromosomes are not visible as they are present in decondensed form.