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Lostsunrise [7]
3 years ago
11

8. Albinism ( lack of pigment) in humans is caused by a recessive gene. If normal parents have an albino child,

Biology
1 answer:
saw5 [17]3 years ago
5 0
The probability that their next child will be normal is 1/4

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A DNA segment is changed from AAT TAG AAA to ATT AGA AA. What type of mutation would<br> this be?
natulia [17]

Answer:

It would be deletion

Explanation:

a base was taken away (deleted) from the sequence; it is also called a frameshift mutation.

insertion, another frameshift mutation,  would be a base added and substitution, a point mutation, would be one base replaced with another.

6 0
3 years ago
How do the human nervous system and endocrine system interact in
evablogger [386]

Answer: option B.

The nervous system signals the endocrine system to release

hormones in response to a stimulus.

Explanation:

The nervous system respond to stimulus through action potentials and neurotransmitters and they signals the endocrine system to secrete hormones.

The endocrine system is responsible for secreting hormones into the blood which is transported to the target cells. These hormones are responsible for metabolism , growth and response to stress. The hormones secreted provide feedback to the brain so as to affect neural processing.

6 0
3 years ago
Every year _______ species go extinct. a. 3 b. 72 c. 1000 d. 20000 please select the best answer from the choices provided
Galina-37 [17]

The experts calculate that between 0.01 and 0.1% of all species will become extinct each year. If the low estimate of the number of species out there is true - i.e. that there are around 2 million different species on our planet - then that means between 200 and 2,000 extinctions occur every year.

What is extinction?

  • Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species.
  • The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence.
  • More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out.
  • It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, mammoths, ground sloths, thylacines, trilobites and golden toads.
  • Through evolution, species arise through the process of speciation—where new varieties of organisms arise and thrive when they are able to find and exploit an ecological niche and species become extinct when they are no longer able to survive in changing conditions or against superior competition.
  • The relationship between animals and their ecological niches has been firmly established.
  • A typical species becomes extinct within 10 million years of its first appearance, although some species, called living fossils, survive with little to no morphological change for hundreds of millions of years.

To learn more about extinction: brainly.com/question/14482178

#SPJ4

7 0
2 years ago
Help me plz on my biology
lukranit [14]

Answer:

no problem is the first time since I am now in number of people who are you doing today is a day off

4 0
3 years ago
Please help me this is grade 7 work btw​
Luden [163]
Don’t fall for the links love!
8 0
3 years ago
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