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
qwelly [4]
3 years ago
13

Give two distinguishing features of class Amphibia​

Biology
1 answer:
iragen [17]3 years ago
8 0

Answer:

the distinguishable features of these creatures include moist, scaleless skin and cold-blooded. Amphibians absorb water and respiration occur through their skin.

You might be interested in
A scientist observes that, when the pH of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reac
vredina [299]

Answer:

A- A pH change can cause the enzyme to change its shape

Explanation:

A rise or fall in the pH of the medium from the optimum of pH 7 usually affect  the  enzymes' active sites  of  and therefore the  shape and  the  rate of enzyme activity.

Assuming  the pH is too low, the enzyme medium becomes acidic;Acidosis. The high Hydrogen ions concentration  interacts with the R-groups of the amino acids moiety of the enzymes, this interaction affects the ionization of the  R-groups, disrupting the ionic bonding holding these R-groups in shape.

This results in loss of the 3-Dimensional shape arrangements of the protein molecule  and therefore of the active sites. Since active sites of  enzymes  determines the specificity of the <u>enzymes substrate- complex </u> to give <u>enzyme-product complex,</u> the catalytic activity of the enzymes decreases, <u>the rate of  reaction decreases,and products formation stops, and the reaction also stops.</u>

The same is applicable to extremely high pH=Alkalosis.

However, the effective buffer system of the body prevents this scenarios from happening in real sense in the body. Through mopping by the  haemoglobin, excretion by the kidney, etc

7 0
3 years ago
What unit of measurement is used to measure temperature in the metric system?
Dahasolnce [82]

Answer:

The metric system measures mass in grams or kilograms, distance in meters or kilometers, and volume in liters. It measures temperature in Kelvin or Celsius degrees instead of the Fahrenheit degrees used in the imperial system. The Basic Unit for Mass The metric system measures mass in grams.

3 0
3 years ago
Which chemical is added to many municipal water supplies to prevent tooth decay
Yakvenalex [24]
Sodium fluoride is a chemical that is added in many municipal water supplies to prevent tooth decay. You can even find it in your toothpaste if you look at the ingredients. Sodium fluoride is a very safe and effective chemical used in lots of oral products because of its benefits against tooth decay. Hope this helps!
4 0
3 years ago
Read 2 more answers
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
Solnce55 [7]

Answer:

The concentration of glucose must be maintained within a fairly narrow range in most vertebrates. This statement is an example of — d. homeostasis.

8 0
3 years ago
Pulls with a force of 50N and someone else pulls 45N opposite direction. What is the net force?
hram777 [196]

Answer:

5 N

Hope it helps

I am sur abt the answer

8 0
2 years ago
Other questions:
  • A sperm cell is produced by spermatogenesis. In order for the sperm cell to achieve a diploid state, what must occur?
    6·2 answers
  • ____________ metamorphic rocks have mineral grains that line up in parallel layers. a. extrusive c. non-foliated b. foliated d.
    5·1 answer
  • How might a decrease in biodiversity affect medical discoveries and treatments?
    6·1 answer
  • Which state of matter is best as a thermal insulator? Give an example.
    13·1 answer
  • Name the three structures of seed plants, and explain<br> their functions.
    10·2 answers
  • when cattle with solid white coats (W) are mated to cattle with solid red coats (R) the offsping are roan (WR) meaning they have
    9·1 answer
  • Who proposed the idea that electrons are found in different energy levels around the nucleus
    10·2 answers
  • From may to september, the worst time of day for pollution is during what hours?
    7·2 answers
  • Can I get help please and thank you.
    14·2 answers
  • There is a scammer/hacker on brainly that is posting "answers" saying that is on an link, (xtiny.cf/H5ct), don't believe him, th
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!