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soldi70 [24.7K]
3 years ago
9

In order for cells of the body to receive nutrients from the food that we eat, digestion must be followed by ___________________

__________________. * 1 point excretion cellular respiration fluid retention . Anaerobic respiration
Biology
1 answer:
Dafna1 [17]3 years ago
5 0

Answer:

Anaerobic respiration

Explanation:

  • The human digestive system is made of gastroenteritis and organs such as saliva, tongue, and glands, etc. The digestion involves the breakdown of food substances into smaller components.
  • This begins in three phases. Chewing leads to the breakdown of food, saliva contains enzymes and the stomach consists of gastric glands.
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Your brain and neurons are in constant action, sending billions of ___________and________messages each day to keep everything, f
Leviafan [203]

Answer:

Until recently, most neuroscientists thought we were born with all the neurons we were ever going to have. As children we might produce some new neurons to help build the pathways - called neural circuits - that act as information highways between different areas of the brain. But scientists believed that once a neural circuit was in place, adding any new neurons would disrupt the flow of information and disable the brain’s communication system.

In 1962, scientist Joseph Altman challenged this belief when he saw evidence of neurogenesis (the birth of neurons) in a region of the adult rat brain called the hippocampus. He later reported that newborn neurons migrated from their birthplace in the hippocampus to other parts of the brain. In 1979, another scientist, Michael Kaplan, confirmed Altman’s findings in the rat brain, and in 1983 he found neural precursor cells in the forebrain of an adult monkey.

These discoveries about neurogenesis in the adult brain were surprising to other researchers who didn’t think they could be true in humans. But in the early 1980s, a scientist trying to understand how birds learn to sing suggested that neuroscientists look again at neurogenesis in the adult brain and begin to see how it might make sense. In a series of experiments, Fernando Nottebohm and his research team showed that the numbers of neurons in the forebrains of male canaries dramatically increased during the mating season. This was the same time in which the birds had to learn new songs to attract females.

Why did these bird brains add neurons at such a critical time in learning? Nottebohm believed it was because fresh neurons helped store new song patterns within the neural circuits of the forebrain, the area of the brain that controls complex behaviors. These new neurons made learning possible. If birds made new neurons to help them remember and learn, Nottebohm thought the brains of mammals might too.

Other scientists believed these findings could not apply to mammals, but Elizabeth Gould later found evidence of newborn neurons in a distinct area of the brain in monkeys, and Fred Gage and Peter Eriksson showed that the adult human brain produced new neurons in a similar area.

For some neuroscientists, neurogenesis in the adult brain is still an unproven theory. But others think the evidence offers intriguing possibilities about the role of adult-generated neurons in learning and memory.

if wrong report me

5 0
3 years ago
A student uses a string to model four pairs of homologous chromosomes in a parent cells. Each Chromosome pair is a different col
Arlecino [84]
<h2>Answer is option "C"</h2>

Explanation:

  • All in all, this procedure includes a "parent" cell parting into at least two "little girl" cells. Right now, parent cell can give its hereditary material from age to age.  
  • Meiosis, then again, is a particular type of cell division that happens in living beings that imitate explicitly. As referenced above, it produces regenerative cells, for example, sperm cells, egg cells, and spores in plants and parasites.  
  • In people, extraordinary cells called germ cells experience meiosis and at last offer ascent to sperm or eggs. Germ cells contain a total arrangement of 46 chromosomes (23 maternal chromosomes and 23 fatherly chromosomes). Before the finish of meiosis, the subsequent regenerative cells, or gametes, each have 23 hereditarily one of a kind chromosomes.
  • Hence, the right answer is option C "four strings, each a combination of different colors"

5 0
3 years ago
True or false all inherited traits follow mendel's pattern of inheritance?
fredd [130]

Answer:

False

Explanation:

The pattern of simple domination follows all human features. The allels are codominant inheritance in many human genes. Because of the gender determination of the X and Y chromosomes, the genes found on them show a pattern of heritage.

<em><u>Hope this helps</u></em>

6 0
3 years ago
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What is systematics and why is it a less arbitrary and more natural approach to categorizing living organisms?
klio [65]
Systematics is the study of the units of biodiversity. Systematics differs from ecology in that the latter is concerned with the interactions of individuals (and therefore species) in a particular time.
5 0
3 years ago
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According to the Constitution of the United Mexican States (Mexico), which of these statements is FALSE?&lt;br /&gt;
Jlenok [28]
I believe the answer is D
6 0
3 years ago
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