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Ymorist [56]
3 years ago
9

The oldest rocks and minerals on earth's surface have been found in canada and australia and are from the:

Biology
1 answer:
Orlov [11]3 years ago
3 0
The time period was called the Hadean Eon, and the rocks themselves are nearly 4.4 billion years old
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Write a definition of homologous chromosomes using the terms “gene” and “allele.”
Rina8888 [55]
Homologous chromosomes contain the same genes and the same locations, or loci but may have different alleles. But jsut so this definition makes sense, lets define some of the words. 
A gene contains the traits that is passed down from two parents to its offspring. An allele is one part of a pair of genes that are located in a particular spot that controls the same trait.
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Gregor Mendel used pea plants to study Question 36 options: a. flowering. b. gamete formation. c. the inheritance of traits. d.
barxatty [35]

Answer:

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Explanation:

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________ is the involuntary expulsion of the contents of the stomach and duodenum out the mouth
wlad13 [49]

Answer:

<h2><u>Vomiting</u></h2>

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Hope this help

plz mark brainliest

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7 0
3 years ago
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