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
Greeley [361]
3 years ago
14

The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.

Biology
1 answer:
Vikentia [17]3 years ago
4 0
Melanin conveys some UV protection
You might be interested in
Glucose moves from the plasma into a skeletal muscle cell, where it is used for energy. Through which fluid compartment does glu
Tanzania [10]

Answer:

(B) Interstitial fluid

Explanation:

The interstitial fluid and blood plasma together make the extracellular fluid. The extracellular fluids are present outside the cells. The extracellular fluid that is present in the narrow spaces between cells of tissues is known as interstitial fluid. When a substance moves from blood plasma into the cells of a tissue, it crosses the interstitial fluid present between its cells. Therefore, when a skeletal muscle cell picks glucose molecules from blood plasma, it moves from plasma to the interstitial fluid to enter the cell.

6 0
3 years ago
Which is an example of ecosystem diversity?
mrs_skeptik [129]

Answer:

D.

Explanation:

D. the Sonoran Desert and a temperate rain forest

5 0
3 years ago
Read 2 more answers
Migration, hibernation, and dormancy are all methods of
bezimeni [28]
The answer is C. Adapting to changes in the environment
3 0
2 years ago
What is the pH if 20 mL of pH = 2 solution is diluted to a final volume of 600 mL?
Mashutka [201]

Explanation:

Hydrogen atoms contain 1 proton and 1 electron while being devoid of neutrons. When they lose their electron they form an ion or H+, a particle carrying a unit of positive charge.  pH measures how basic or acidic a water-based solutions are, with a formula for pH is

pH = -log[H+].

...where pH is -base 10 log of the concentration of hydrogen ions within the solution.

Initial volume= 20 mL

Final volume= 600 mL

# of dilutions= \frac{600}{20} = 30

for a pH 2= [H+]= 10^{=2}

∴ [H+]=  \frac{10^{-2}}{30} = 3.333 * 10^{-4}

and pH is an antilog of [H+]= - log \frac{10^{-2}}{30} = 3.333 * 10^{-4}

∴pH = 3.47

Learn more about pH at brainly.com/question/4981491

Learn more about pKA at brainly.com/question/11062486

#LearnWithBrainly

7 0
3 years ago
Addition of a nucleotide onto a dna strand is an endergonic reaction. what provides the energy to drive the reactio
PolarNik [594]
Addition of a nucleotide onto a DNA is an endergonic reaction. In such reactions, the energy is provided by ATP.

ATP is the immediate source of energy for any endergonic reaction occuring in the body. Reactions such as addition of nucleotides are endergonic and anabolic reaction that is, these reactions consume energy which is provided by ATP.
7 0
3 years ago
Other questions:
  • D. although protein was part of the composition of the foods in this experiment, it was not the main macromolecule component of
    7·1 answer
  • WILL GIVE A BRANILEST AND 20PTS
    13·2 answers
  • Morphine is considered a(n) ________ drug because it decreases pain.
    6·2 answers
  • Bacteria are which type of cell
    10·2 answers
  • Main type of carbohydrate in rice?
    11·1 answer
  • Which is a function of the structure that is represented in the image?
    9·1 answer
  • Consider one such cell where the magnitude of the potential difference is 40 mV, and the inner surface of the membrane is at a h
    5·1 answer
  • HELP!!!! 50PTS!!!!! WILL BE MARKED BRAINLIEST!!!!
    5·2 answers
  • Please help BRAINIEST :)))thank uuu
    6·1 answer
  • There are 22 amino acids used within the human body. How can these 22 molecules be used to make hundreds of thousands of differe
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!