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sdas [7]
2 years ago
10

In the heart, an action potential originates in the __________.

Biology
1 answer:
jeka57 [31]2 years ago
3 0

Answer:

sinoatrial (SA) node

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What would happen if cytokinesis failed?
strojnjashka [21]

Answer:

The nucleus would never divide, and the new daughter cells would lack a

nucleus and would die.

Explanation:

Cytokinesis is an essential process of cell division, part of the cell cycle. If cytokinesis failed, cells wouldn't be able to reproduce.

3 0
2 years ago
In the reaction glucose + fructose → sucrose + water, _____ is a reactant and _____ is a product. View Available Hint(s) Hint 1.
elena-s [515]

Answer:

The correct answers are: Glucose, Sucrose.

Explanation:

  • The given question is an example of a Chemical Reaction.
  • A Chemical Reaction can be defined as the process by which two or more substances interact with each other in such a way that a rearrangement of chemical bonds and molecular position occurs in them. This alteration in bonds and molecular position results in the formation of a new substance.
  • In a chemical reaction, the substances which are responsible for interacting with each other are called the Reactants.
  • In a chemical reaction, the new substances those are formed are called the Products.
  • A Chemical Reaction can be represented as follows:

                                W  +   X   →   Y +  Z.

  • Here, W and X are reacting to form Y and Z.
  • So, W and X are the Reactants.
  • Y and Z are the Products.
  • As the Reactants react to form the Products, so the arrow → is represented from the Reactant to the Product.
  • In the given question,

                           glucose + fructose → sucrose + water

  • As arrow → always direct from Reactants to the Products, so the left side of the arrow will be the reactants and the right side of the arrow will be the products.
  • Hence, the Reactants are Glucose and Fructose.
  • The Products are Sucrose and Water.
  • So, Glucose and Fructose undergo chemical reaction to form Sucrose and Water.
5 0
3 years ago
When a neuron isn't being
pashok25 [27]

Correct option is A)

There are electrical and concentration gradients in neurons that induce the sodium ions to enter the cell. The resting potential is maintained because the channels for sodium ions are closed. The membrane remains impermeable to sodium ions in the rest state. The membrane is more permeable to potassium passage. The potassium ions leak through the membrane at a greater rate than sodium enters. There is loss of positively charged ions from the inner part of the cell membrane. The inner part of the membrane carries a relatively more negative charge than the outer part of the cell membrane.

Thus, the correct answer is option A.

5 0
2 years ago
Read 2 more answers
Where does Dobson unit used in ?????​
Vsevolod [243]

Answer: ozone concentration

Explanation: The Dobson Unit is the most common unit for measuring ozone concentration. Becuse ozone concentration is hard to measure they use The Dobson Unit.

6 0
3 years ago
Read 2 more answers
The following list contains possible combinations for pea plant seed color. Yellow (Y) is a dominant trait, and green ( y ) is a
Virty [35]
YY and Yy would result in a plant with yellow seeds. This is because Y is dominant and yellow seeds would show with a dominant homozygous and a heterozygous. It can't be yy because that would be homozygous recessive
3 0
3 years ago
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