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
timurjin [86]
3 years ago
7

Where are the cells located that make up the SA node

Biology
1 answer:
nikklg [1K]3 years ago
5 0

Answer:

in the wall of the right atrium of the heart.

Explanation:

The sinoatrial node (SA), consisting of spindle-shaped cells, initiates the electrical activity of the heart. From its location in the right atrium in proximity to the superior vena cava, the electrical activity spreads to the atria, whose cells are larger than those of the SA.

You might be interested in
Slow release of bacteriophage progeny from a bacterial host cell A. does not kill the host cell B. is a feature particular to fi
zhenek [66]

Answer:

C. causes cell lysis

Explanation:

The slow release of the bacteriophage progeny from a bacterial host cell causes bacterial cell lysis and further kills the host cell which is the bacteria, this results to the liberation of progeny viruses which then infect new bacterial cells.

Only a type of bacteriophage called the filamentous bacteriophage reproduces without killing the bacterial host cell.  The filamentous phages infect majorly gram negative bacteria.

7 0
3 years ago
Artificial selection has the greatest impact on society by providing which of the following?
Licemer1 [7]

Answer:

Improved food sources

Explanation:

Artificial selection is also known as selective breeding. Its a deliberate process of breeding plants and animals for better breeds.

It's also called genetic engineering.

This in a way impacts the society positively as crops with better yield are produced. Example is wheat that has more grain or in animals, cow that produces more milk.

6 0
3 years ago
Which of the following statements correctly describes any chemical reaction that has reached equilibrium?
Vesnalui [34]

Answer:

Option (d).

Explanation:

Equilibrium may be defined as the state of  the equality on both the sides of the reaction. Different types of equilibrium are physical equilibrium, chemical equilibrium and dynamic equilibrium.

Chemical equilibrium may be defined as the equilibrium in which the reactants and products concentration remains constant with time. The rate of the backward reaction is equal to the rate of forward reaction.

Thus, the correct answer is option (d).

8 0
3 years ago
Organ where carbohydrate absorption occurs
Rina8888 [55]

Answer: Small intestines

Explanation: Digestion of carbohydrates begins in the mouth mechanically and through salivary amylase. It passes down to the stomach by parastalsis, digested further and goes to the small intestines where their absorption begins. Carbohydrates are a source of glucose, that most organs use as their primary energy source. Indigestible carbohydrates and fibers travels down to the large intestines where they are digested by bacteria or eliminated as waste through the anus.

The small intestines consist of microvilli that increase surface area for maximum nutrient absorption. Carbohydrates are absorbed by the small intestines via the jejunum, taken to the blood stream then transported to the liver where glycolysis and most metabolic pathways take place, for energy production.

8 0
3 years ago
How can air pollution affect groundwater?
Troyanec [42]
All of the above is the answer.

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the step of the scientific method that involves test of hypothesis
    13·2 answers
  • A male stickleback fish will attack other male sticklebacks that invade its nesting territory, it only attacks males with the re
    15·1 answer
  • 1What is a super volcanoes eruption style ?<br> 2what is a super volcanoes magma chemistry??
    9·1 answer
  • When a child is born with trisomy, when did the mutation occur
    11·2 answers
  • What type of photoreceptor cell allows us to see gray tones in dim light, and provides our peripheral vision
    8·1 answer
  • The reactions of lactate fermentation in muscle cells happen in the
    13·1 answer
  • Which of the following would be made entirely of
    9·1 answer
  • 1. what are the 3 points of dimensions? <br>2. Define health<br>3. What is Mental dimension??​
    5·2 answers
  • !!!PLEASE HELP 80 POINTS!!!
    13·2 answers
  • Two functions of tRNA
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!