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
mr Goodwill [35]
3 years ago
6

Complete the following sentence. During an action potential

Biology
1 answer:
Pepsi [2]3 years ago
3 0

during an action potesntiol a stimulus first causes sodium channels to open.   hope this helps!!


You might be interested in
Which word describes the amount of matter an object contains?
Brrunno [24]
MASS: because it is the measure of the amount of matter in an object
4 0
2 years ago
Lymphatic vessels recover about ________ of the fluid filtered by capillaries.
Illusion [34]

Answer:

15 percent

Explanation:

Lymphatic vessels recover about  15 percent of the fluid filtered by capillaries. In addition, these vessels contain white blood cells that fight infections.

8 0
3 years ago
I WILL GIVE BRAINLIEST!!!
Nuetrik [128]

Answer:

2 and 3

Explanation:

read it and see which will make sence

8 0
2 years ago
Pls help :( me i rly need help
3241004551 [841]
C. directional selection
True 

Sorry, I don't know the second one. 
3 0
3 years ago
Read 2 more answers
Discuss the events of meiosis, and compare and<br> contrasthow meiosis differs from mitosis.
Arisa [49]

Answer:

Meiosis It is one of the ways of cell reproduction. This process is performed in the cells in the sex cells. It is a process of cell division in which a diploid cell (2n) undergoes two successive divisions, with the ability to generate four haploid cells (n). This process is carried out in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II

Explanation:

Phases of Meiosis

Two successive cell divisions occur in meiosis, Meiosis I (Reduction) and Meiosis II (Division). Meiosis produces 4 haploid cells. Meiosis is also known as reduction division.

In Meiosis I, the level of ploidy is reduced from 2n to n while in Meiosis II the "set" of remaining chromosomes is divided into a process similar to mitosis (division). The biggest difference in the process occurs during Meiosis I.

- MEIOSIS I: Prophase I

During mating, a key event occurs in the matching of homologous chromosomes.

- Metaphase I

In Metaphase I the tetrads line the equator of the cell. The spindle fibers "stick" to the centromere of each homologous pair and subsequent events are similar to mitosis.

- Anaphase I

During Anaphase I the tetrads separate and the chromosomes are dragged to the opposite poles by the spindle fibers. The centromeres in Anaphase I remain intact.

- Telophase I

Telophase I is similar to mitosis, except that in the end each "cell" has only one group of replicated chromosomes. Depending on the species, the new nuclear membrane can be formed (or not). Some animals can divide their centrioles during this phase.

Telophase may be absent in some species. If there is, it is followed by an interface called interkinesis; Unlike the mitotic interface, there is no duplication of genetic material since each chromosome already has two chromatids. The other difference is that these sister chromatids are no longer genetically identical, due to the cross-linking phenomenon.

- MEIOSIS II: Profase II

During Prophase II, the nuclear membrane (if formed during Telophase I) dissolves, and the spindle fibers appear, as in the prophase of mitosis. Actually, Meiosis II is very similar to mitosis.

- Metaphase II

Metaphase II is similar to that of mitosis, with chromosomes in the equatorial plane and spindle fibers sticking to the opposite faces of the centromere in the kinetochore region.

- Anaphase II

During Anaphase II, the centromere divides and the then chromatids, now chromosomes, are secreted to the opposite poles of the cell.

- Telophase II

Telophase II is identical to Telophase of mitosis. Cytokinesis separates the cells.

Comparison of Mitosis and Meiosis :

- Mitosis maintains the level of ploidy while meiosis reduces it.

- Meiosis can be considered as a phase of chromosome number reduction followed by a slightly different mitosis.

- Meiosis only occurs in relatively few cells of a multicellular organism, while mitosis is more common.

4 0
3 years ago
Other questions:
  • THIS IS PLANT SCIENCE BTW !!! A source of healthy, locally grown food for the population of a given area :
    7·1 answer
  • Two equal forces F have resultant of 1.5F .Find the angle between the forces​
    11·2 answers
  • for the grass please circle any of below alphabetized words inthis box that correctly describe this organisms
    8·1 answer
  • In a chromosome pair connected by a centromere what is each individual chromosome called
    9·1 answer
  • How do fungi get food
    13·2 answers
  • The eyes convert light energy into neural responses that we experience as sight. The conversion of light energy into sight is do
    9·1 answer
  • Chemical reactions occur when molecules or atoms collide so that the bonds between atoms break and new bonds form. Breaking the
    11·1 answer
  • The mass of an atom is contained primarily in its _____. A. Electron Shell B. Nucleus C. Proton D. Size
    12·2 answers
  • - The ability of an ecosystem to maintain a steady equilibrium by responding to
    9·1 answer
  • The nitrogen cycle could not exist without?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!