Answer: C.
Explanation: During a nuclear fusion reaction, it gets squeeze together so tightly that four hydrogen nuclei combine to form one helium atom. This is called nuclear fusion. In the process some of the mass of the hydrogen atoms is converted into energy in the form of light. The same process occurs in thermonuclear (fusion) bombs.
D- oesophagus
The stomach, small intestines,liver secret digestive juice.
Answer:
The Venn diagram shows characteristics of two types of living organisms, where A represents plants (Reino Planatae) and B fungi (Reino Fungi) (option A).
Explanation:
In the taxonomic classification of living organisms, the classification by kingdoms tends to compare the morphological and functional characteristics of the species, in addition to their genetic lineage.
<u>In the Venn diagram (image)</u>:
- A represents the Plantae kingdom because its cells have chloroplasts with chlorophyll, cell wall of cellulose and functionally autotrophic, characteristics linked to plants.
- B in the diagram represents fungi (Fungi Kingdom) due to the presence of hyphae, cell wall of chitin and being heterotrophic.
The two circles in the diagram coincide in the cellular elements that both organisms have in common, in addition to being Eukaryotes.
Learn more:
Differences between plant cells and fungi brainly.com/question/1843408
its answer is A.
please let me know how helpful it is
Hormones glucagon and insulin are produced in the alpha and beta cells respectively in the Islet of Langerhan in the pancreas. They are involved in the negative feedback system of blood glucose regulation in homeostasis.
GLUCAGON: when there is a low blood glucose concentration, the pancreas detect this and alpha cells produce and release glucagon. Glucagon causes the cells of the body to absorb less glucose from the blood. It also inhibits the process of converting glucose into glycogen (glycogenesis) and cause gluconeogenesis (process of converting amino acids/proteins and lipids/fats into glucose) and glycogenolysis (conversion of glycogen to glucose). Finally, glucagon decreases the rate of respiration so less glucose is required.
INSULIN: when blood glucose is high, insulin is released. Insulin binds with cell surface receptors of cells and activates the enzymes attached to the receptor. The enzymes cause a conformational change in the structural proteins that surround glucose transport protein containing vesicles, causing them to move out of the way so the vesicles migrate up to the cell membrane and glucose transport proteins can fuse with it. Thus, more glucose can be taken in by cells. Insulin also cause glycogenesis (converting glucose into glycogen) and inhibits gluconeogenesis and glycogenolysis.
Basically insulin decreases blood glucose concentration (eg. after eating) and glucagon increases it (eg. skipping breakfast in the morning)
