1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
igomit [66]
3 years ago
15

One in every ____ infants are born with down syndrome.

Biology
1 answer:
goblinko [34]3 years ago
3 0
700 is the answer hope this helps
You might be interested in
What describes something in nature and predicts how it will behave without explaining why?
riadik2000 [5.3K]
Scientific law.

A scientific law describes something in nature and predicts how it will behave without explaining.

This is because before a scientific law has been made, numerous observation has been done under different situations. The scientific law is established when a natural event invariable occur given a set of circumstances. 
3 0
3 years ago
Read 2 more answers
Name the 7th Planet from the Sun ☀️
vladimir1956 [14]

Uranus is the answer

5 0
3 years ago
Read 2 more answers
Which gas is most abundant in Earth's atmosphere?
Alisiya [41]

Answer;

Nitro.

Explanation:

By far, the most abundant gas in the Earth's atmosphere is nitrogen, which accounts for about 78% of the mass of dry air. Oxygen is the next most abundant gas, present at levels of 20 to 21%. Although humid air seems like it contains a lot of water, the maximum amount of water vapor that air can hold is only about 4%.

4 0
3 years ago
Read 2 more answers
Is lichen growing on rocks a mechanical or a chemical
Maksim231197 [3]
Chemical weathering.
6 0
3 years ago
Read 2 more answers
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
Other questions:
  • Dna paternity testing has become the most widely accepted method for establishing who the father of a child is when there are do
    9·1 answer
  • What would happen if a family did not have a male heir?
    9·1 answer
  • the human tailbone is an example of a(n) __________. homologous structure analogous structure vestigial structure embryonic stru
    6·1 answer
  • Based on the desert food chain provided, which change in the ecosystem would have the greatest negative effect?
    9·2 answers
  • • Why are psychologists who study the biology of behavior
    11·1 answer
  • First word for the scientific name is
    12·2 answers
  • Which of the following is a Monotreme?<br><br> kangaroo<br> koala<br> bandicoot<br> platypus
    5·1 answer
  • Monocots typically have leaves with _________ veins and flowers with ______ parts per whorl.
    13·1 answer
  • The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of:
    9·1 answer
  • Describe how and where each type<br> weathering, erosion, or deposition occurs
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!