Drinking through a straw shows fluid flowing from high pressure to low pressure in 2 ways. The first is how it shows high pressure as you stuck on the straw. This increases the pressure and brings the fluid to your mouth. If this pressure is kept you can successfully pick up the straw filled with water and have none come out. This demonstrates low pressure when you stop ducking and the fluid falls back down the straw into your cup.
The evolution of molecular biology has made possible to establish a new classification of all organisms according to their DNA, and it's called phylogenetic classification.This classification groups living beings according to their kinship, established according to anatomical, physiological and behavioral criteria and especially genetic, based on the similarity of genes between species.
This made it possible to discover kinship ties between species of which there is no suspicion of any morphological link between them, something which the old classification (the traditional classification) was incapable of doing (and this proves the importance of the DNA and genes in organisms classification.
Answer:
These are Cowpers's gland.(Bulbo Urethral Gland)
Explanation:
These are small pea-sized glands at the base of the penis which connect each with the urethra through a short duct. It is thorough this ducts that secretion from each gland gets to the urethra.
They secretes thick alkaline fluids for lubrication of urethral and tip of the penis, for expulsion of left over urine, dead cells, mucous from the urethra for clean sperm passage.
The serrations also neutralise the acidity of the urethral
Answer: Sample C is 62%.
Sample C would be best because it has the highest coefficient of absorption. <span>Sound absorption coefficient is defined as THE ratio of absorbed energy to incident energy and the higher the percentages, the better the absorption is. It indicates that most of the sound being absorbed and less is being reflected back. </span>
Answer:
Chloroplasts
Explanation:
they do not have chloroplasts and therefore cannot complete photosynthesis, the process plants use to make their own food.
