Upwelling is a process in which cold water from depths arise to the surface,
it's important because :
- It bring a lot of nutrients to the surface of the ocean
- It maintain the temperature of the ocean
hope this helps
Alright bud the best answer to this question would be that the stratum basale or stratum germinativum which would be the bottom most part of the epidermis has the highest mitotic rate
<h2><u>Oogenesis:
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It initiates before birth and lasts till fertilization. Oogenesis starts when oogonia which are the juvenile eggs that structure in the ovaries before birth and have chromosomes in diploid number, experience mitosis to frame essential oocytes, likewise with the diploid number.
Oogenesis continues as essential oocytes experiences the primary cell division of meiosis to shape optional oocytes with the haploid number of chromosomes. Auxiliary oocytes just experience the second meiotic cell division to frame a haploid ovum in the event that it is treated by a sperm. The one egg cell that comes from meiosis contains the vast majority of the cytoplasm, supplements, and organelles.
This inconsistent conveyance of materials produces one huge cell, and one cell with minimal more than DNA. This other cell, known as a polar body, in the long run separates. The bigger cell experiences meiosis II, indeed creating a huge cell and a polar body. The huge cell forms into the develop gamete, called an ovum.
The inconsistent conveyance of the cytoplasm during oogenesis is essential as the zygote that outcomes from preparation get the majority of its cytoplasm from the egg. So the egg needs to have much cytoplasm as could be expected.
True because, more variation increases the species fitness, the ability to survive and reproduce. Allowing the organism to pass on their beneficial traits (advantageous traits), to their offspring.
Answer:
Nicolaus Copernicus
Explanation:
Nicolaus Copernicus challenged the notion proposed by Aristotle, which stated that there were four physical elements: water, fire, earth and air. It also stated that Earth was the centre of the universe, and that the four elements were below the moon and other planets, all moving around the Earth.
Copernicus challenged this with the heliocentric theory, which included assumptions that the Earth was the centre of gravity and its orbiting moon, that the sun is close to the centre of the universe with the planets orbiting it, and that the universe is much larger than the scale that Aristotle suggested.
