3 years ago

What are the four pieces of evidence that can be used as evidence for evoultion?

1 answer:

6 0

They are fossil records, the geographic distribution of living species, homologous structures of living organisms, and 
embryology

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Explanation:

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A metamorphie rock can be classified according to its

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Sea-floor spreading ovcurs at divergent boundaries which statement best identifies the geologic process taking place at the poin

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Sea-floor spreading ovcurs at divergent boundaries which statement best identifies the geologic process taking place at the point where sea floor spreading occurs

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3 years ago

The relationship that exists when an organism lives in or on another organism and feeds off that organism is called __________.

drek231 [11]

Answer: It is called Parasitism.

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Parasitism is symbiotic relationship where an organisms lives in or on it's host thereby feeding and causing harm on it host. Examples of such relationship is parasites like roundworm, ticks, fleas that feed on humans and cause harm.

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3 years ago

n the CRISPR system of bacteria, the spacer is a(n): A. bacterial gene B. bacterial enzyme C. piece of phage DNA D. inactive vir

Volgvan

Answer:

Option D

Explanation:

Bits of DNA that are interspersed among these repeated sequences are called spacers. Regarding to bacteria, the spacers are taken from viruses that previously attacked the organism. They serve as a bank of memories, which enables bacteria to recognize the viruses and fight against future attacks.

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3 years ago