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
Zarrin [17]
1 year ago
9

How has gene duplication played a critical role in evolution? see concept 21.5 (page)

Biology
1 answer:
Angelina_Jolie [31]1 year ago
8 0

Answer:

Explanation: Without gene duplication, mutation of genes would not exist. This would prevent organisms from adapting to their environment, making survival much more difficult if not impossible.

You might be interested in
Increased cAMP as a downstream event of epinephrine and norepinephrine stimulation of the left ventricle produce PKA. Which of t
Ugo [173]

Answer:

Voltage-gated Ca2+ channels

Explanation:

Modulation of Ca+2 channel Epinephrine also causes an increase in cAMP that stimulates PKA that is protein kinase A, which in turn phosphorylates the voltage-gated Ca+2 channel that is the L channel. This phosphorylation results in a protein conformational change that enchances the channels activity.

4 0
3 years ago
1. What are the organs attacked by the smallpox virus, and what are the clinical symptoms that can develop after infection?
Lapatulllka [165]

Answer:

For 1. The virus starts in the lungs. From there, the virus invades the bloodstream and spreads to the skin, intestines, lungs, kidneys, and brain. The virus activity in the skin cells creates a rash that starts as macules (flat, red lesions).

The symptoms after actually catching the virus

Pain in the back or muscles

rashes, small bumps, blister, scab, or scar

You can have fever, malaise, or chills

headache or vomiting Is also pretty common. I hoped this helped bro

Explanation:

8 0
3 years ago
How did the kingdoms went from 2-6
Makovka662 [10]

Initially, when scientists were first using the taxonomy system to classify living organisms there were only considered to be 2 kingdoms: plants and animals. However, when the microscope was invented, scientists were able to observe differences in organisms at the cellular level! They were also able to observe microscopic living organisms like bacteria that they had not been able to observe before. Scientists realized it was necessary to add 4 new kingdoms to account for the observations they had not seen before the invention of the microscope.

3 0
3 years ago
What happens when a hypothesis is not supported
Temka [501]
<span> For a start, when you have a question that needs answering in science, you formulate a null hypothesis. That is a negative statement which you then set out to prove or disprove. This is just a convention. So if your initial question is for example, "Does sugar dissolve in water?"

Your null hypothesis will be "Sugar does not dissolve in water."
You then set up your experiment and get some data.

Now if your data doesn't support your null hypothesis then you reject it and make the statement ,"Sugar does dissolve in water." As you can see from this simple example, a non-result is still a result so the idea of formulating new tests as mentioned by another answerer isn't necessary and in some ways is the incorrect thing to do. In science, hypotheses are often not supported by data and i would argue that this is the case a lot of the time. A non-result is still a result and you will have plenty to write about whichever way it goes. </span>
5 0
3 years ago
Examine the diagram of a cell.<br> Which accurately labels the Golgi body?<br> W<br> w<br> YN
yaroslaw [1]

Answer:

it is w

Explanation:

i have done a similar question

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which mutation is harmful to the organism?
    6·2 answers
  • PLEASE HELP. PSYCHOLOGY!
    5·1 answer
  • When does en element become a different element?
    11·1 answer
  • Why are enzymes necessary?
    5·2 answers
  • What must be true about the earlobes of Alice's parents?
    15·1 answer
  • State how a gas produced by respiration is recycled in nature
    8·2 answers
  • What do you predict would happen to the cytoplasm of the onion cell as salt is added?
    10·1 answer
  • Study the diagram of a cell.
    12·1 answer
  • Phosphorous enters the biotic (living) cycle mostly by (hint: like water) *
    8·1 answer
  • Western medicine advantages of skin problems
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!