8) is b.
im not sure if this is right though
18) is d
Answer:
Zero latitude
Explanation:
The difference is high is hotter and low is colder
Answer;
-Chitin is a structural carbohydrate that forms their exoskeleton
Explanation;
-Chitin is the main component in the exoskeletons of arthropods and crustaceans and is also in the cell walls of fungi.
-It is a linear long chain polymer consisting of repeated units of N-acetyl-glucosamine.
-The main function of the chitin-containing exoskeleton is to keep the inner soft tissue safe from any sort of injury and also prevents the delicate tissues from drying (acts as a water tight barrier against dehydration).
With chromosomes crossing over frequently, it's more likely that genetic defects will occur in offsprinfg.
