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
maksim [4K]
2 years ago
8

In the situation of science positive means

Biology
1 answer:
salantis [7]2 years ago
7 0
Something with higher electric potential than the ground or a defined null or neutral point. Electrons flow from the positive point in a circuit. See also negative, null, and potential.
You might be interested in
Limiting nutrients often...
gogolik [260]

Answer:

hiii

Explanation:

3 0
3 years ago
Read 2 more answers
The interaction between which protein and ion initiates muscle coupling?
labwork [276]

Answer:

Troponin and calcium ions.

Explanation:

Troponin is a component of thin filament along with tropomyosin and actin. It is a protein complex to which calcium binds and start the production of muscular force.

Calcium also playing a very important role in muscle contractions, it binds with troponin and helping to move tropomyosin.

When calcium ion attached to troponin, then conformational changes occurs in troponin shape and moves which allow tropomyosin going away from its inhibitory position from the myosin-binding sites on actin. After this, the energized myosin head starts binding to the actin molecules and starts the cross bridge cycle, which helping in shortening the muscle's fiber.

3 0
3 years ago
A red blood cell with an osmolarity of 300 mOsM (non-penetrating solutes) swells but does not lyse when placed in a 300 mOsM sol
Mashcka [7]

Answer:

See below for answer

Explanation:

<u>A. 200 mOsM NaCl</u>

This solution is hypotonic to the red blood cell (RBC) with penetrating solute. The RBCs will swell up and burst because the water will move into the cells.

<u>B. 400 mOsM urea</u>

This solution is hypertonic to the RBCs with non-penetrating solutes. Water will leave the cells via osmosis and the cells will shrink and appear shriveled.

<u>C. 100 mOsM urea plus 200 mOsM NaCl</u>

This time both penetrating and non-penetrating solute is present. The solution is isotonic to the RBCs and although there will be movement of water between the cells and the solution, there will be no overall change in the concentration of water for each and no change in appearance of the cells.

<u>D. 300 mOsM urea</u>

The RBCs will not lyse nor shrivel as again the solution is isotonic to the RBCs.

8 0
3 years ago
Identify the process that describes fluid moving from areas of higher concentration to areas of lower concentration.
valentina_108 [34]

Answer: Diffusion

Explanation

Diffusion refers to the process that describes the movement of fluid from areas of high concentration to low concentration. Osmosis is the opposite of diffusion and refers to the movememnt of low concentrations to high.

7 0
2 years ago
Read 2 more answers
Make inferences and predictions about the science methode<br>​
Yakvenalex [24]
Science method. like the gemdas is math there’s a process for science which depends on chem or bio.
6 0
2 years ago
Other questions:
  • Briefly describe what occurs when a red blood cell is placed in water (a hypotonic solution).
    8·1 answer
  • Common side effects of antidepressants are:
    14·2 answers
  • What do cells need to live and move
    14·1 answer
  • List the following terms in order from smallest to largest.
    13·1 answer
  • Match the sphere with its correct statement.
    5·2 answers
  • WILL GIVE BRAINLIEST ANSWER, PLEASE HELP
    7·1 answer
  • Homologous recombination occurs in a heterozygote in which alleles D and d differ by a single base pair. The D allele has a G (a
    11·1 answer
  • What are two ways you can
    15·1 answer
  • All the children and grandchildren are coming to Mrs. Chalmers’ house for a big Thanksgiving dinner, and she wants everything to
    5·1 answer
  • 4. Compare and contrast the biotic and abiotic factors found in the South African plain and marine ecosystems.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!