Answer:
Because it prevents venous blood from mixing with arterial blood (which is rich in oxygen), in this way the circulation is more efficient.
Explanation:
In land vertebrates, the blood circulation is structured in two independent circuits: the pulmonary circulation, where oxygenation of the blood occurs and the elimination of the carbonic anhydride that it contains, returning back to the heart through its left atrium; and the systemic or major circulation, impelled from the left ventricle, transports the oxygenated blood and the nutrients that it assimilates as it passes through the digestive system, to the tissues of the animal, where it is charged again with anhydride carbonic and other waste substances, returning back to the heart, where it enters through the right atrium. These systems are independent and prevents venous blood (which is poor in oxygen) from mixing with arterial blood. These systems are independent and prevents venous blood (which is poor in oxygen) from mixing with arterial blood.
Answer:The correlated trait exercise shows that when two characters are correlated, the optimal values and selection strengths rise and fall together.
Explanation: Correlation refers to statistical (linear) relationship between two random variables. When traits are correlated, change in one is associated with change in the other.
Correlation coefficient (c.c.) measures strength of association between two variables in the same individual or experiment. It can range from -1 to +1. C.c. can be positive, negative or weak.
1. A positive c.c. means that an increase in one variable is associated with an increase in the other variable.
2. A negative c.c. means that an increase in one variable is associated with a decrease in the other.
3. A c.c. near zero indicates a weak relationship between the variables.
Correlation can be represented by scatter plot as shown in the attached image.
Answer:
Sympatric speciation.
Explanation:
Sympatric speciation occurs between Crematogaster ashmeadi and Linepithema humile ants because they live on the same geographical location. Sympatric speciation is a type of speciation in which ancestral population evolve into separate species without separation of geography. Hybrid sterility is the postzygotic isolating mechanism that decreases the fitness of the hybrid individuals and helps in controlling the population of an organisms..
The answer is 1000 kilocarolies. It is important to keep in mind that Energy is passed up the food chain from one trophic level to the next but a lot of it is lost along the way. Energy is passed up the food chain from one trophic level to the next. However, only about 10% of the total energy stored in organisms at one trophic level is actually transferred to organisms at the next trophic level. Therefore; if the producers have 1 million kilocarolies, then the energy transferred to the primary consumer will be 100,000 kilocalories (10% of a million), and the energy transferred to the secondary consumer will be 10,000 kilocalories (10% of 100,000) and the energy to the tertiary consumer will be 1000 kilocarolies (10% of 10,000).
I think the nurse should include, the hand and elbow of the affected arm will be elevated above the shoulder. Mastectomy is the medical term for the surgical removal of one or both breasts, partially or completely, normally carried out to treat breast cancer. It is also usually used for women at high risk who have prophylactic mastectomy.
