Answer AND Explanation:
In both the fungi and pteridophytes, diploid sporophyte is the dominant plant. The sporophyte develops spore-forming bodies called sporangia. These are borne in clusters called sori. When mature, the sporangia breaks releasing spores that are dispersed by wind. If the spores land on moist surfaces, they germinate to plants.
Answer:
The function of rectum is to store the feces temporary before it is excreted out from the human body.
Explanation:
The end part of large intestine is called rectum and it is connected to the anus. The distal part of rectum is called ampulla and feces is stored here temporarily. When stored feces increases its walls expand. There are receptors present in its wall that send a signal to the brain and feces is discharged out of the body.
Answer:
Living organism should obtain the 4 main types of macromolecules for maintaining proper body physiology.
Explanation:
The four major types of macromolecules that we should intake are Carbohydrate,protein,fat and nucleic. Each of them performs their specific functions.The 4 macromolecules are deeply interlinked to each other.
Deficiency of one of these four macromolecules can leads to various health hazards or health abnormalities.
For example if we do not intake carbohydrate then the lack of carbohydrate will weakens the body.The brain will not get sufficient amount of glucose to exhibit its biological function.
The protein deficiency leads to the development of marusmus a phusiological disorder occur due to protein energy malnutrition.
During his expedition upon the HMS beagle at the Galapagos Islands, he came up with the idea of survival of the fittest and evolution named Darwinism.
So, the best choice is
Do living organisms change over time and, if so, how?
