Answer:
Option C, Intrapleural pressure is less than intrapulmonary pressure
Explanation:
During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.
This difference in pressure (i.e higher pressure with in the lungs than the atmosphere) causes lungs to remain attached to the chest wall and hence looks inflated.
Hence, option C is correct
Answer:
Euglena are classified into the Kingdom Protista, and the Phylum Euglenophyta.
Explanation:
Answer:
BB - Dark brown color - (1/4)
Bb - light tan (due to incomplete dominance) - (2/4 or 1/2)
bb - white color - (1/4)
Explanation:
Let the allele for dark brown pigment be represented by "B"
And the let allele for white (no pigment) be represented by "b"
Due to incomplete dominance, the phenotype of heterozygous species would be "light tan"
Genotype of heterozygous female - Bb
Genotype of heterozygous male - Bb
Bb * Bb
BB, Bb, Bb, bb
BB - Dark brown color - (1/4)
Bb - light tan (due to incomplete dominance) - (2/4 or 1/2)
bb - white color - (1/4)
Answer:
Correct
Explanation:
It’s always more likely that the dominant gene will show than the recessive gene.
Answer:
Allows farmers to grow plants using very little soil
Explanation:
Fertilizer helps us to return the nutrients to the soil for new or current plants to grow. These nutrients were spent by the plants that were there or the soil was not that rich with nutrients, to begin with. It will not replace soil and growing plants without soil is called hydroponics. Fertilizer is very useful in agriculture currently and most likely will continue to be a good way to grow plants for a while.
