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Illusion [34]
3 years ago
7

Hunger researchers initially assumed that the _____________ was a brain region responsible for initiating hunger and eating beca

use when it was electrically stimulated, animals would begin to eat?
Biology
1 answer:
qaws [65]3 years ago
4 0

Answer:

Lateral Hypothalamus

Explanation:

According to the hunger researchers' initial assumption lateral hypothalamus is that part of the brain which regulates intake of food and metabolical activities like metabolical regulation of peptides like  the orexins melanin-concentrating hormone. It is that part of the brain that plays a key role in the ingestive behavior regulation.

The lateral hypothalamus system initiates physical and cognitive processes like it promotes arousal and feeding behavior, metabolism, regulates body temperature, BP, etc. and when stimulated it results in the feeding behaviour in animals as they begin to eat.

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EXPLAIN why the 4 cells at the end of cytokinesis are different from each other
zhuklara [117]
<h3><em>Answer:</em> </h3>

<u>Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. It occurs concurrently with two types of nuclear division called mitosis and meiosis, which occur in animal cells. Mitosis and each of the two meiotic divisions result in two separate nuclei contained within a single cell. Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. Cytokinesis starts during the nuclear division phase called anaphase and continues through telophase. A ring of protein filaments called the contractile ring forms around the equator of the cell just beneath the plasma membrane. The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow. Eventually, the contractile ring shrinks to the point that there are two separate cells each bound by its own plasma membrane. </u>

4 0
2 years ago
Why is meiosis important for organisms? It allows for genetic variation among organisms. It determines which genes are dominant
Studentka2010 [4]

Meiosis is important for organisms since it allows for genetic variation among organisms.

<h2>Further Explanation</h2><h3>Cell division</h3>
  • Cell division is the process in which cells undergo division to form other new cells.
  • There are two types of cell division;
<h3>Mitosis Division  </h3>
  • Mitosis is a type of division in which a parent cell undergoes division to yield two daughter cells that are similar to the parent cells.
  • The daughter cells have equal number of chromosomes as the parent and are identical to the parent.
  • This type of cell division normally occurs in somatic cells of organisms and facilitates growth and development of organisms.
<h3>Meiosis division</h3>
  • Meiosis division is a type of division that occurs in gamete cells where a parent cell divides into four daughter cells that differ from the parent cells in terms of the number of chromosomes.
  • In meiosis the daughter cells have half the number of chromosomes as the parent cells.
  • Meiosis occurs in the gamete cells and facilitates sexual reproduction in living organisms.
  • Meiosis occurs in two phases, that is, meiosis I and meiosis II
  • During the process of meiosis several processes occurs that cause genetic variation among organisms.
  • These processes include, crossing over, independent assortment of genes, among others.
<h3>Crossing over  </h3>
  • Cross over is the process that occurs during the prophase I phase of the first stage of meiosis known as meiosis I.  
  • During the process of crossing over, genetic material is exchanged between homologous chromosomes which enhances the genetic variation in organisms.

Keywords: Cell division, meiosis, crossing over, genetic variation

<h3>Learn more about:</h3>
  • Cell division: brainly.com/question/5220873
  • Meiosis: brainly.com/question/5220873
  • Crossing over: brainly.com/question/5220873
  • Genetic variation: brainly.com/question/5220873

Level: High school  

Subject: Biology

Chapter: Cell division  

Sub-topic: Meiosis  

9 0
3 years ago
Read 2 more answers
Which of these is a drawback of growing a crop that has been genetically modified to
zubka84 [21]

Answer:

A

Explanation:

because the crops will not grow with herbicide

3 0
2 years ago
How is energy released during respiration?
Kitty [74]

Answer:

During cellular respiration glucose is broken down in the presence of oxygen to produce carbon dioxide and water.

Explanation:

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Which protist is multicellular and can primarily be found in cool marine climates?
denis23 [38]
C
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Im pretty sure this is correct
3 0
3 years ago
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