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
PilotLPTM [1.2K]
3 years ago
5

A cardiac muscle cell is: Question 31 options: a voluntary muscle just like skeletal muscle. contracts spontaneously. is joined

to other cardiac muscle cells by structures called intercalated discs. has numerous nuclei. Two of the statements above are correct.
Biology
1 answer:
stich3 [128]3 years ago
5 0

Answer:

The correct answer is: Two of the statements above are correct.

A cardiac muscle cell contracts spontaneously and is joined to other cardiac muscle cells by structures called intercalated discs.

Explanation:

Cardiomyocytes, the only ones responsible for the contractile function of the myocardium, are terminally differentiated cells that cease to proliferate almost immediately after birth. Cardiomyocytes are mononucleated cells, with the nucleus in a central position. These are linked together by the so-called intercalary discs, which appear as dark bands in histological preparations, and which are a set of junction complexes where desmosomes and adherent junctions can be found (here called fascia adherens). The intercalary discs are therefore the boundaries between cells.

You might be interested in
Bacteria is growing in a petri dish. initially, there were 10 bacteria in the dish and they are tripling every 3 minutes. what i
FrozenT [24]

Domain of a function is the type of parameters it takes as input. The domain of a sine function is angle in either degrees or radians. The function that represents the population growth of the bacteria that is tripling every minute is given by the mathematical expression,

x_{t} = x_{0} \times 3^{t},

where, t is time in minutes, x_{0} is the initial population size, and x_{t} is the population at time, t.

The domain of this function will be time, t.

5 0
3 years ago
What is microevolution?
Morgarella [4.7K]
Microevolution - Allele frequency changes in a certain population over an amount of generations, it can also be simply described as "an evolutionary change in populations".
5 0
3 years ago
Read 2 more answers
What is true about Earth's atmosphere?
Zanzabum

Answer:

B is true .. atmosphere always changes day by day

5 0
3 years ago
Read 2 more answers
What most likely happens when lithospheric plates move apart deep below the ocean?
Alisiya [41]

Magma seeps up along plate boundaries and forms mountains.

Factor 1 creates competition and factor 2 creates genetic variation.

Explanation:

Question 1: Magma seeps up along plate boundaries and forms mountains.

When lithospheric plates move apart they create divergent plate margin where magma seeps up along the plate boundary and forms series of mountains. The mid oceanic ridge was formed this way.

  • The lithosphere lies on the weak and molten asthenosphere.
  • Different plate interactions produces a wide range of plate movement.
  • Along a divergent margin usually, two oceanic plates are forced to move apart.
  • The forces the asthenosphere to rise through seeps as magmatic bodies.
  • The rising magma them crystallizes along the margins of the plate to form mountain chains like the mid-oceanic ridge.
  • It is common to find young rocks at the plate margin and the older ones away from spreading centers.

Learn more:

lithosphere brainly.com/question/9582362

Question 2: Factor 1 creates competition and factor 2 creates genetic variation.

Scarcity of space leads to competition between organisms and availability of mates creates genetic variations.

  • In an ecosystem with limited space, there will pressure on available resources.
  • This will lead to different organism developing strategies to efficiently adapt to their environment.
  • Organisms will in turn begin to compete with one another for the limited resources.

When we have a diverse number of mating options, genetic variation occurs. This suggests that we can have different gene combination as a result of the mating organisms.

A variation in the genetic pool of a place leads to better adaptable traits to survive the environment.

learn more:

Natural selection brainly.com/question/10367884

#learnwithBrainly

8 0
2 years ago
Help please!!! asap!!
Leto [7]

Answer:

Water

Explanation:

5 0
2 years ago
Other questions:
  • A nurse is caring for a client with multiple myeloma. which laboratory value is the nurse most likely to see?
    15·1 answer
  • The hypothalamus is the area where afferent impulses from all senses and all parts of the body are sorted out and then relayed t
    9·1 answer
  • the inability of an organism to produce certain proteins can occur when an organism is lacking am enzyme needed to combine
    7·1 answer
  • You eat a bowl of beans as part of vour dinner. As vou digest the beans, the proteins that are present get broken down to their
    6·1 answer
  • Which type of soil can retain the greatest amount of water?
    9·1 answer
  • What is species distribution?
    8·2 answers
  • how does sustainable development supports the appropriate use of natural resources and long lasting development?​
    14·2 answers
  • Explain why you think that in biology we often discuss things in terms of population instead of individual organisms.
    5·1 answer
  • The third level of cell organization is the ____.
    7·2 answers
  • Based on the pyramid and what you know about iron, do you think you get enough iron in your diet?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!