Production of urine
Explanation:
The three major steps in urine formation in the urinary system are – glomerular filtration,reabsorption and secretion – all of which results in removal of waste and excessive water from the body.
Kidneys are the main organs of the urinary system which takes part in the formation of urine. The kidneys are supplied by the renal arteries and capillaries. Each kidney consist numerous functional units called nephrons. Each nephron has a renal corpuscular and a tubular structure.
The renal corpuscle holds the Bowman’s capsule which contains the tuft of blood capillaries called the glomerulus. Glomerular filtration of blood plasma flowing in its capillary systems filters filterable components of blood like water and smaller solute particles leaving behind non-filterable blood cells, large proteins, etc. The filtered components gets collected in the glomerulus and forms the glomerular filtrate.
This filtrate then travels through the tubular structure – convoluted tubule and Loop of Henle, where reabsorption of water and nutrient ions takes place.
The remaining waste ions, and hydrogen ions are then collected in the collecting tubule. This is secretion of urine which then passes to the urinary bladder through the ureters.
Parent's genotypes are Bb and Bb andn the offsprings genotypes after crossing them will be BB, Bb and bb while phenotypes of 3 white rabbits and 1 brown.
The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.
A person's genotype is made up of all the alleles they have for a certain gene. The sum of a person's attributes or observable characteristics is their phenotype. Unlike phenotype, which is only impacted by genotype, genotype is directly inherited from a person's parents.
Assume B is white, b is recessive brown ; Bb x Bb
B b
B BB Bb
b Bb bb
Genotypes: BB, Bb, bb
Phenotypes: 3 white, 1 brown
Learn more about punnett square, here:
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Answer:
Weathering and erosion. Weathering is the process where rock is dissolved, worn away or broken down into smaller and smaller pieces.
Explanation:
There are mechanical, chemical and organic weathering processes. Organic weathering happens when plants break up rocks with their growing roots or plant acids help dissolve rock.
Answer:
The correct answer will be option-B
Explanation:
Adaptation is a process by which the species changes itself to become best fitted to their environment. The adaptation is the result of the genetic changes that are passed on from the parents to the offspring and become established in a population. The natural adaptation is the driving force of the evolution of organisms on earth.
Since adaptation ensures the survival of the species to their respective environment which increases their reproductive rate, therefore, Option-B is the correct answer.
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Answer:
Nuclear physics is related to chemistry in some way but it is rightly placed under the branch of physics.
Nuclear physics is the field of physics in which atomic nuclei are studied. As in chemistry reactions are studied, nuclear physics also studies the reactions of the atomic nuclei. Hence, in this way, these two fields might co-relate but there are more differences than similarities in the field of chemistry and nuclear physics.
b iis to prevent wind erosion
c is to increase weathering
d is to prevent deposition
The answer is; B
Sometimes winds carry the sand of the beaches causing erosion. The fences act as breakers of this wind erosion. As wind tries to carry the sand, they encounter the fence and 'break'. Therefore, the sand is deposited along the fence forming a sand dune. These dunes also form protection from storm surges.