Goblet cells are those secretory cells or unicellular glands, which make and expel mucus can be found in simple columnar and pseudostratified columnar epithelia.
<h3>What are goblet cells? </h3>
They are goblet-shaped cells that have a basal nucleus and a cytoplasm loaded with mucins (the main component of mucus).
<h3>Characteristics of goblet cells</h3>
- It is present in the epithelia of the respiratory and digestive systems.
- Its main function is to secrete mucus, which protects and lubricates the inner surface of simple columnar and pseudostratified columnar epithelia.
Therefore, we can conclude that goblet cells are mucus-secreting cells present in epithelial linings.
Learn more about goblet cells here: brainly.com/question/24688127
Answer:
D
Explanation:
One of the reproductive strategies of terrestrial vertebrates is <u>the ability of fertilized eggs to develop away from the body of water.</u>
<em>Water is very important for fertilization in aquatic organisms and one of the biggest challenges posed by migrating to the terrestrial environment is desiccation of the eggs. Terrestrial vertebrates are able to overcome these challenges by making fertilization of eggs internal and the ability of the fertilized eggs to develop away from the body of water.</em>
The correct option is D.
Answer:
A is called Prophase
B is called Anaphase
C is called Metaphase
D is called Telophase
Explanation:
These can get confusing but I'll explain it for you.
The first stage of <u>mitosis</u> is Prophase.
- In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell.
The second stage of <u>mitosis </u>is Metaphase.
- In this stage the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere.
The third stage of <u>mitosis</u> is Anaphase.
- In this stage the sister chromatids separate into individual chromosomes and are pulled apart.
The fourth and last stage of <u>mitosis</u> is Telophase.
- During this stage the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes. Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.
The process that follows the last stage of mitosis is called <u>Cytokinesis</u>.
- With two complete copies of the DNA now in two different regions of one cell, the cell membrane will pinch and divide the cytoplasm in half. The result is two individual cells that are identical to the original cell. Each of the two new cells have a complete copy of the DNA and contain all of the organelles that the original cell had.
Hopefully, this eases the problem for you and you understand it better.
Also, this image might help:
Let me know if you any other questions about this.
Good luck:)
Answer:
The term used for the elements and compounds before a chemical reaction take place are reactants or reagents