Answer:
Goosebumps are an involuntary reaction: nerves from the sympathetic nervous system — the nerves that control the fight or flight response — control these skin muscles.
Explanation:
Industrial melanism<span> is the resultant effect of</span><span> </span>industrial pollution on arthropods<span>. The individuals that had a darker pigmentation were more fit to the new environment, more polluted that caused darkened buildings and trees, and were thus favoured by </span>natural selection to survive.
Insecticide resistance and antibiotic resistance is also a manifestation of the emergence of new groups of organisms that are resistant to a specific attack out of an existing population, and are therefore favoured by selection to survive over the others.
Answer: B. They are a first line of defense that can begin killing pathogens immediately.
Explanation:
B-lymphocytes are not the first line of defense. On the contrary, innate immune cells such as basophils, dendritic cells, eosinophils, Langerhans cells, mast cells are the body's first line of defence.
Minke whales (pronounced mink-ey), are one of the smallest baleen whales in North American waters and are the smallest of the “rorqual” whales. The rorqual whales or “great whale” family include blue whale, fin whale, Bryde's whale, sei whale, and humpback whale.
Humpback whales can be distinguished by their small dorsal fin and long pectoral flippers, and they show their tail flukes more often. Blue whales are the biggest. They are actually grey, but appear aqua under water.
Explanation:
