<span>Actually baby Aiden will surely develop a strong secretory Iga antibodies which is passive immunity to most of the types of bacteria and viruses, ie, as a protection against infections, which inturn is a response to the baby to its immune system in the form active immunity.</span>
Answer:
Because of the universality of the genetic code, the polymerases of one organism can accurately transcribe a gene from another organism.
Answer:
B) The "lub-dub" sound originates from blood turbulence through the heart.
Explanation:
The systole and diastole in the heart produce the lub and dub sound in the heart.
The systole represents the contraction of both left and right ventricles and pumps the blood to the body and the right ventricle to the lungs. This involves the opening and closing of the valves. The closing of the atrioventricular valves produces lub sound.
At the end of the systole or ventricular contraction or when the blood has been pumped to the aorta and the pulmonary valves then the semilunar valves present in the aorta and pulmonary closes. This produces a sound dub.
Therefore,lub dub is associated with the physical contraction of the heart but not the turbulence of the blood.
Thus, the selected option is the correct answer.
Answer:
For 4.) The lighter outer part of a shadow is called the penumbra. Hope this helps ^_^
Answer:
Option (A)
Explanation:
Environmental justice usually refers to a significant portion of the struggle that is extensive carried out in order to improve, upgrade and maintain a clean, hygienic and healthy environment. This struggle is mainly for those people who have traditionally lived, worked and was closely associated with the sources of various types of pollution.
This can also be simply considered as precautionary measures that are taken in order to prevent nuclear destruction, creation, and disposal of hazardous waste materials and other factors that have the potential to affect the resources on earth such as land, wind, water, and food.
Thus, the above given dimensions of environmental problems are issues of environmental justice.
Hence, the correct answer is option (A).
