Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules. These cells are called spermatogonial stem cells. These develop into mature spermatozoa, also known as sperm cells. (1) Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa.(2)Spermatozoa are the mature male gametes in many sexually reproducing organisms. Thus, spermatogenesis is the male version of gametogenesis, of which the female equivalent is oogenesis. In mammals it occurs in the seminiferous tubules of the male testes in a step-wise fashion. Spermatogenesis is highly dependent upon optimal conditions for the process to occur correctly, and is essential for sexual reproduction.
The correct option is (D) the attraction between water molecules.
The attraction between water molecules cause surface tension.
<h3>What causes the water molecules' surface tension?</h3>
- Cohesive interactions between the liquid's molecule's cause the surface tension to develop. The molecules at the center of the liquid are surrounded by other molecules on both sides.
- The net force is zero because molecules are tugging on one another equally in all directions. In contrast to the majority of the liquid, the liquid molecules at the interface only have half as many nearby molecules.
- This results in a net inward pull toward the liquid and a stronger association of the molecule with the molecules on either side of it. The force preventing the surface from breaking is surface tension.
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I understand that the question you are looking for is "What is surface tension?
A.) the fluid located between the pleural membranes
B.) the stretchiness of the lung tissue
C.) the collapse of alveoli
D.) the attraction between water molecules"
Examples of intensive properties include:
- Boiling point
- Density
- State of matter
- Color
- Melting point
- Odor
- Luster
- Hardness
- Ductility
- Malleability
Intensive properties can be used to help identify a sample because these characteristics do not depend on the amount of sample, nor do they change according to conditions.
Extensive Properties
Extensive properties do depend on the amount of matter that is present. Examples of extensive properties include:
- Volume
- Mass
- Size
- Weight
- Length
While extensive properties are great for describing a sample, they aren't very helpful identifying it because they can change according to sample size or conditions.
Way To Tell Intensive and Extensive Properties Apart?
One easy way to tell whether a physical property is intensive or extensive is to take two identical samples of a substance and put them together.
Explanation and Examples of Physical Properties
If this doubles the property (e.g., twice the mass, twice as long), it's an extensive property. If the property is unchanged by altering the sample size, it's an intensive property.
A token economy.
It basically means that rewards and punishment shape behavior of students.
The cell has little compartments called organelles. These organelles are similar to our organs, which carry out life processes for our bodies to survive. Organelles are just tiny organs within a cell