Answer:
b. Bacteria
Explanation:
Cell walls with lipopolysaccharide are present in gram Negative bacteria. Gram-negative bacteria have an outer membrane in their cell wall which is composed of lipopolysaccharides.
The lipopolysaccharides are the molecules that have both lipids and proteins. The lipopolysaccharide layer that forms the outer membrane of Gram-negative bacteria is present outside to their thin peptidoglycan layer.
Answer:
Homeostasis is an outcome of gene regulation.
Explanation:
This is because gene regulation serves to ensure that protein activity is kept within a narrow range.
If I were you I would choose muscles it seems right to me although I might be wrong. Hope this helped some! ;)
Answer:
An artificial heart is a prosthetic device that is implanted into the body to replace the original biological heart. It is distinct from a cardiac pump, which is an external device used to provide the functions of both the heart and the lungs. Thus, the cardiac pump need not be connected to both blood circuits.
Explanation:
This is because the melanocytes are located in the stratum basale. Lighter-skinned people usually have low basal levels, and exposure to UV radiation causes an increase which makes skin darker.
