Answer:
circulatory and respiratory
Explanation:
The body system of Birds possesses a higher arrangement of organs to perform a particular function. The organs form a system which includes the organs and associated structures.
When the biologist observed the shortage of the dissolved oxygen and increase in the level of dissolved carbon dioxide, this could be the result of the failure of the circulatory system which supplies these gases on the body and the associated respiratory system which helps in the exchange of these gases with the atmosphere.
Thus, circulatory and respiratory is the correct answer.
The chromosomes will divide along the centrosomes and move to opposite poles
Answer:
A law in science is a generalized rule to explain a body of observations in the form of a verbal or mathematical statement.
Explanation:
Scientific laws (also known as natural laws) imply a cause and effect between the observed elements and must always apply under the same conditions.
Answer:
B. has beneficial effects for both mother and fetus.
Explanation:
Prenatal massages help in pregnancy because they reduce stress and anxiety. Additionally relaxes tension parts such as the back, shoulders, neck, back and feet, all overloaded by the baby's weight. It should be borne in mind that newborns had lower cortisol levels when their mother was massaged.
Answer:
Parasitism is a relationship between two different organisms where one of the organisms actually harms the other through the relationship. The organism that is harming the other one is called a parasite. Examples of Parasitism: Fleas or ticks that live on dogs and cats are parasites.
Explanation: