Answer:
Us humans discovered technology to change the way of life at its best, now the technology at every second is changing our's lives. Over the years, technology has successfully attempted to enter our body and change the way of thinking, and the target is human blood and emotions.
Explanation:
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Answer:
<u>Renewable Resources</u>
water
wind
geothermal energy
solar energy
<u>Nonrenewable resources</u>
minerals
fossil fuels
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Answer:
3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase
Explanation:
Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.
This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.
Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.
Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.
The answer is: They exists only in the Northern Hemisphere.
It is possible to find a glacier in other spots in the world.
