Answer: wings: Insecta class
Chewing mouthparts: some orders in the insects class;
Jointed appendages: common to all athropods
Number of legs: not all the same in some class and even orders
Segmented bodies: common to all
Exoskeleton: common to all
Explanation:
Memeberss in the phylum athropoda all have exoskeleton with itsain component being chitin. They all have segmented bodies; some head, thorax and abdomen like insects, some head, cephalothorax and abdomen like in the crustaceans. All have jointed appendages. Some class possess wings eg insecta and some possess chewing mouthparts egg grasshopers in the class insecta
Answer:
What causes new alleles to appear are mutations and gene flow but mostly mutations.
Explanation:
Answer: The question or problem is if beet root extract melts ice faster than salt. The scientists are trying to answer if the beet root extract would be ableto melt ice faster so that it could replace putting salt on the roads. Hope this helps :)
b. False
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