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Naya [18.7K]
3 years ago
12

9. Before European settlement, it is estimated that there were more than 10,000 whooping cranes in North America. Whooping crane

s are now an endangered species, and in 1941, the population only contained 15 individuals. Since then, the whooping crane population has rebounded considerably, now numbering over 400 individuals. Based on what you know about evolutionary processes, select all of the following statements that are accurate. Most new mutations in the whooping crane population are advantageous. The whooping crane population has less genetic variation now than it did in before European settlement. The whooping crane population likely has substantial genetic variation. The whooping crane population underwent a population bottleneck in the 1940s.
Biology
1 answer:
blagie [28]3 years ago
5 0

1-octodecyl-3-methylimidazoliumhexafluorophosphate/ACIL00076 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services. http://www.alfa-chemistry.com/1-octodecyl-3-methylimidazoliumhexafluorophosphate-item-296259.htm

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Chromosomal mutations can have a variety of effects on individuals. Down syndrome is a disorder that causes problems such as mil
xxTIMURxx [149]

Answer:

The correct answer would be non-disjunction.

Down syndrome refers to the genetic disease caused by the non-disjunction of chromosome number 21.

Non-disjunction refers to the event in which the homologous chromosomes or sister chromatids fail to separate properly during a cell division.

In Down syndrome, the sister chromatids of chromosome 21 fail to separate properly which results in the formation of a gamete with 2 copies of chromosome 21.

When this gamete fertilizes with another gamete, it results in the formation of a zygote with 47 chromosomes, that is, 46 chromosomes + extra copy of chromosome 21.

5 0
3 years ago
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____ behaviors rely on prior practice or experience?
Evgesh-ka [11]

Answer:

Learned behaviors

Explanation:

Learned behavior is where one develops from experience.

3 0
3 years ago
A protein that contains all eight essential amino acids is called a ____.Question 4 options: total protein hydrated protein full
Rudik [331]
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5 0
3 years ago
Read 2 more answers
I-i need help, please️️
jeka57 [31]

Answer:

A single ruler

Explanation:

autocracies contain people with absolute power who doesn't need anyone else's approval to make laws.

an absolute monarchy contains a king or queen

so overall both contain 1 ruler :)

4 0
4 years ago
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nirvana33 [79]

Answer:

The correct answer is - C. The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable.

Explanation:

DNA is the genetic material of most of the living organisms. In this question, Joe wants to study to see the effect of folic acid on the synthesis of the DNA. Folic acid ae the essential nutrients or vitamin for the synthesis of nitrogen bases of the DNA that are purines and pyrimidines. A dependent variable and an independent variable are two important part of any experiment.

A dependent variable is a variable being tested and measured. In the experiment Jon is conducting, the amount of DNA becomes a dependent variable that is being tested and measured in the presence of folic acid.  And folic acid is the independent variable tested to check the formation of DNA in bacteria.

Thus, the correct answer is - C. The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable.

7 0
3 years ago
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