Answer:
Although habitats provide food, water and shelter that animals need, there is more to survival than just the habitat.
Because it’s more likely that chance events will significantly change the frequencies of alleles in the population
Lancelet is a chordate but not a vertebrate because it lacks a backbone
Explanation:
The subphyla of the phylum Chordata are - Vertebrata, Urochordata and cephalochordate
Those chordates with a structural backbone belong to Vertebrata.
Urochordates and cephalochordates lack a backbone and hence are termed invertebrate chordates.
Lancelet is an invertebrate chordate of the subphylum – Cephalochordata.
The lancelets consist of a notochord that extends right from the head till the tail at the dorsal surface. The notochord acts like the backbone and provides support and a semi-flexible structure to aid in the movement of the organism.
They lack a developed nervous system like vertebrates but only has a dorsal nerve tube
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Chemical energy, hope this helps. Correct me if im wrong but im sure its chemical energy
Cell division is known as how organisms grow and repair themselves.
For example the parent cell divides forming 2 daughter cells identical to the parent.