Answer: Extinction has occurred.
Explanation:
In psychology, the extinction refers to the process of weakening of a conditioned response by the respondent. This actually results in decrease or disappearance of a particular behavior response.
In the given situation, the dog is showing the trait of salivation in the behavior but after the occurrence of number of trials the dog is not receiving any food this is a tiring situation for dog which made it to stop salivation. Thus here, the extinction of behavior that is salivation has occurred.
Venous blood from the ankle travels and goes through tibial vein, popliteal vein, femoral vein, external iliac vein, common iliac vein, inferior vena cava to the heart (right side). From the heart to the right side of the brain, blood goes through the aorta and the brachiocephalic artery. The brachiocephalic artery the then divides into the right common carotid artery and the right subclavian artery and both supply the right side of the brain.
The correct answer is: To propose the theory of evolution by natural selection
Answer:
B. Members of Plantae and some members of Protista are autotrophs.
Explanation:
All the plants and some protists like euglena are autotrophs i. e. make their own food with the help of chloroplast in the process of photosynthesis. All members of kingdom Plantae cannot move from one place to another like animals. Protists are the organisms which is made of one cell and they have the characteristics of fungi, plants and animals.
What causes hemolytic disease of the newborn (HDN)? HDN most frequently occurs when an Rh negative mother has a baby with an Rh positive father. When the baby's Rh factor is positive, like the father's, problems can develop if the baby's red blood cells cross to the Rh negative mother.
