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
Masteriza [31]
3 years ago
11

What do it means when the sea level is rising

Biology
1 answer:
Greeley [361]3 years ago
6 0

Answer: The ice caps are melting

Explanation: Because of global warming caused by the burning of fossil fuels and other factors the ice caps are melting and so the sea level is rising

You might be interested in
You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate su
solmaris [256]

Complete question:

You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2?

a. The mold can grow on rich medium plus intermediate substrate C, but not on rich medium plus intermediate substrate B.

b. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus the initial substrate.

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

d. The mold can grow on rich medium plus intermediate substrate D, but not on rich medium plus intermediate substrate C.

e. The mold can grow on minimal medium plus intermediate substrate A, but not on minimal medium plus intermediate substrate C.

Answer:

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

Explanation:

Let us first diagram the pathway for a better understanding.

The normal organism produces four enzymes that convert substrates in the medium that allow it to survive, grow, and reproduce.  

initial substrate ------------> A ----------------> B ----------------> C ----------------> AA

                           <em>Enzyme 1       Enzyme 2        Enzyme 3         Enzyme 4</em>

Any mutation on the Neurospora´s enzymes will not let the organism grow on the minimal medium because it will not be able to convert the minimal substrate into the following one, because the mutated enzyme will not accomplish its original function.

  • So if the mutation occurs in enzyme 1, the organism will <em>not be able to convert the initial substrate into intermediate substrate A</em>. And the rest of the reaction will not be possible either because of the lack of substance A.

initial substrate -----X----> A -------X-----> B ------X--------> C ------X-------> AA

          <u> </u><u><em>mutated Enzyme 1 </em></u><em>      Enzyme 2       Enzyme 3        Enzyme 4</em>

<em />

  • If the mutation occurs in enzyme 2, the organism will <em>not be able to convert the intermediate substrate A into intermediate substrate B</em>. And the rest of the reaction will not be possible either because of the lack of substance B.

initial substrate ------------> A -------X--------> B -------X------> C --------X-----> AA

                           <em>Enzyme 1   </em><em>mutated Enz. 2</em><em>     Enzyme 3         Enzyme 4</em>

<em />

  • If the mutation occurs in enzyme 3, the organism <em>will not be able to convert the intermediate substrate B into intermediate substrate C</em>. And the last reaction will not be possible either because of the lack of substance C.

initial substrate ------------> A ----------------> B -------X--------> C -------X------> AA

                           <em>Enzyme 1       Enzyme 2     </em><u><em>mutated Enz. 3</em></u><em>     Enzyme 4</em>

<em />

  • And if the mutation occurs in enzyme 4, the organism <em>will not be able to convert the intermediate substrate C into the essential amino acid</em>.

initial substrate ------------> A ----------------> B ----------------> C -------X-------> AA

                           <em>Enzyme 1       Enzyme 2        Enzyme 3      </em><u><em>Mutated Enz. 4</em></u>

<u><em /></u>

But, if we artificially add to the medium the substrate that should be produced by the original enzyme (and that is not converted because of the mutation), then the organism will grow and survive because the other enzymes will be able to produce the essential amino acid.

So, if enzyme 2 is the only enzyme mutated, the organism will not be able to live in a medium with substrate A because the mutated enzyme will not convert the substrate A into B. There will <em>not be B substrate in the medium, and the other enzymes will not produce the essential amino acid</em>. So if the mutation occurs in enzyme 2, substrate A is useless to the organism because it will not survive.

But if we add the intermediate substrate B to the medium, the organism will survive. In a medium with substrate B, all the other reactions will be possible, and the organism will get the essential amino acid. The artificial addition of B substrate will replace the function of the original enzyme 2 -which is the one that converts A into B-.

3 0
3 years ago
Help will give brainliest
Yuliya22 [10]
The way glass traps heat in a greenhouse
8 0
2 years ago
Parts of plant modify into different structure why​
Lapatulllka [165]

Answer:

to adapt to the environment and maintain homeostasis

6 0
2 years ago
1. How could a water molecule be transferred and transformed through the water cycle over millions of years? Record your evidenc
KengaRu [80]

Answer:

the condensation of water vapor as it touches a colder surface.

Explanation:

7 0
2 years ago
Why is articular cartilage necessary for long bones?.
MariettaO [177]

Answer:

Articular articular cartilage is very important part of the long bone structure. It is present between the bones at the joints and help in reducing the friction between the joints. the epiphytes is data present at the end of the long bones are usually have a covering of the articular cartilage and it has a very thin layer of cartilage that helps in reducing the friction .

It also act as a shock absorber between the two bones and helps in the transmission of force from one phone to another and divide the force across the skeletal system. It also transmit the force on the bones with low fictional coefficient. The articular cartilage are very susceptible and prone to the injury and it lacks blood vessels and nerves. Articular cartilage is made up of hyaline cartilage and is made up of densely packed extracellular matrix which certain type of specialised cells known as chondrocytes. It is also made up of water , collagen , proteoglycans and glycoproteins .

7 0
2 years ago
Other questions:
  • Match a division of the nervous system with the description
    7·1 answer
  • Nerve damage leading to neurological impairment is a function of chronic exposure to inhalant drugs. how might inhalants affect
    12·1 answer
  • Which of the following is not true of conservation tiling? A. a method of cultivation in which residues from previous crops are
    15·1 answer
  • In My Bondage and My Freedom by Frederick Douglass, what does Douglass yearn for above all else?
    13·2 answers
  • What causes the atrioventricular valves to close during a heartbeat? a Pressure in the atria is higher than in the ventricles. b
    7·1 answer
  • What are there scientific name.<br><br>Please Answer​
    15·1 answer
  • Question 6(Multiple Choice Worth
    8·1 answer
  • Examine the image for a step in meiosis shown here. What is the significance of the arrangement of homologous chromosomes shown
    6·1 answer
  • In T-ball, batters hit a ball that is placed on a T-shaped stand. Batter A hits the ball by swinging the bat from a resting posi
    15·1 answer
  • While sitting on a picnic blanket at the park, Sami didn't notice ants swarming around her feet and repeatedly biting her. She b
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!