Answer:
D) anatomical features
Explanation:
The molecular systematics uses the data on the molecular structures to establish evolutionary relationships between the organisms. Techniques of DNA, RNA, and amino acid sequencing are used to compare the macromolecules of organisms. These studies provide information about the degree of relatedness among organisms. The closely related species share a higher degree of similarities in the sequences of these macromolecules. However, this branch of science does not include information about the anatomical and structural features to establish evolutionary relationships.
Answer:
C. 4 am on Sunday
Explanation:
It takes 6 hours 12.5 mins to go from high to low tides, high tides occurs every 12 hours and 25 mins apart.
Mutualism is a way of life in which two species that could live independently come together permanently or sporadically and each one puts something on their side for the survival of both. In nature there are many types of mutualism, for example, the spider and the toad, the narrow-billed toad is an ally of a type of tarantula that usually devours small frogs, but what, in exchange for this small amphibian to eat the parasites that affect its eggs, the arachnid allows it to live in his burrow underground and in return defends him from possible predators, like owls, throwing to them urticating hairs in their eyes.
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Answer:
they are used for protection, maneuvering, and to trap food for consumption
Explanation:The spikes of the sea urchin are used for protection, to move about, and to trap food particles that are floating around in the water.