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Korolek [52]
4 years ago
12

Professional who study and make predictions about human populations are called

Biology
1 answer:
Setler79 [48]4 years ago
6 0

Professionals that study and make predictions about human population are called demographers.

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Which of these provides the most creative explanation for why sediments form horizontal and parallel layers? Law of Superpositio
kirza4 [7]

Answer: Principle of Original Horizontality.

According to the principle of original horizontality all rock layers are horizontal in nature and this is specific to sedimentary rocks. The younger sediments remains in the top layers and older ones remains at the bottom. These sediments accumulate in horizontal and parallel layers and becomes compact to form rocks in the end.

5 0
3 years ago
Cartilage is a type of ____________ tissue that is softer and more flexible than bone. It is made of cells called ____________ .
zloy xaker [14]

Answer:

cartilage is a flexbile tissue  made of cells called  chond

Explanation:

6 0
3 years ago
If you were a doctor, and a lab technician told you that the results of a patient’s lab test were Gram positive, what antibiotic
Murljashka [212]
Telavancin, Vancomycin or Teicoplanin. <span>Active against aerobic and anaerobic Gram-positive bacteria including MRSA; Vancomycin is used orally for the treatment of C. difficile colitis</span>
7 0
3 years ago
Barred feather pattern is a Z-linked dominant trait in chickens. What offspring would you expect from (a) the cross of a barred
Bezzdna [24]

Answer:

Let the "barred" allele be caller B and the "non-white" allele b. Since chickens use chromosomes Z  and W to determine sex, hens would have chromosomes ZW, and roosters would have chromosomes ZZ. A Z-linked gene is represented as a superscript on the Z chromosome, Z^{B} for the dominant allele and Z^{b} for the ressesive allele.

A barred hen would have a copy of B on its Z chromosome, a non-barred rooster would have both copies of b on both Z chromosomes. Using Punnet squares to represent the crosses we get the following cases:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{B} & W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of two barred heterozygote roosters to two non-barred hens. Crossing them we get:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{b} & W \\ \ Z^{B} & Z^{B}Z^{b} & Z^{B}W \\ \ Z^{b} & Z^{b}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of one barred heterozygote rooster to one barred hen to one non-barred rooster to one non barred hen.

6 0
3 years ago
The Paleo-Indian skull of Kennewick Man, dated to 8,400 years B.P. is long and narrow; the face and jaws are robust, is an anato
Lady bird [3.3K]

Answer:

Washington, near Seattle

Explanation:

Found in 1996 in Columbia park at the bottom of the Columbia River

This is land currently owned by the US Army Corps of Engineers

8 0
3 years ago
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