Answer:
I believe it is D
Explanation:
If an antibody is produced for a bacteria, then it would be specific to that bacteria. If the bacteria evolves, an new antibody would have to be produced to mach that new strain of bacteria. I could be wrong, but that is my reasoning. Hope it helps :)
Answer:
I am 100% sure it is the mudstone. I believe they are the oldest rock in existence.
Explanation:
Answer:
to avoid a general collapse of the system (eventually caused by the failure of the local organs)
Explanation:
An organ system can be defined as a group of organs that work together as a unit in order to perform a particular function. In an organ system, each organ has specific functions and is composed of different tissues that in turn have specialized tasks. Organ systems include, among others, the cardiovascular system, respiratory system, digestive system, urinary system, skeletal system, endocrine system, nervous system, etc.
Answer:
c. Recycling glass is an energy-saving practice.
Explanation:
I think because more energy is saved that way and makes it more effective than the rest of the choices.
The answer is B - experimental group .
