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Alexxandr [17]
1 year ago
13

Which of the following maintains the patency (openness) of the trachea? a. surface tension of water b. surfactant production c.

C-shaped cartilage rings d. pseudostratified ciliated epithelium
Biology
1 answer:
Bad White [126]1 year ago
4 0

Answer:

<em>The correct option is C) C-shaped cartilage rings </em>

Explanation:

The trachea is commonly known as the wind-pipe. The trachea can be described as about a 4 inch long passage from which the air travels into the bronchi and lungs. The pathway of the trachea is kept open by C- shaped cartilages which are lined all over in the trachea. The C-shaped cartilages protects as well as maintain the shape of the wind-pipe. The rigidity of the trachea arises from the C-shaped cartilages.

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A molecule that binds up excess hydrogen ions in a solution is called a(n) ________.
svet-max [94.6K]

a base

isotopes have nothing do with binding hydrogen ion

acids donate hydrogen

donaters just donates‍♀️

6 0
1 year ago
Ben Affleck has a cleft chin, but his ex-wife Jennifer Garner does not. Neither one of their two daughters (Violet and Seraphina
kherson [118]

Answer:

Ben - Y Xc

Jen - XCXC

Violet - XCXc

Seraphina - XCXc

Samuel- Y Xc

Explanation:

Given -

Ben has a cleft chin

Let the allele for cleft chin be "c"

and the allele for normal chin be "C"

When Ben with cleft chin mates with wife Jennifer Garner having normal chin, then the two girl child do not have cleft chin but the boy has cleft chin.

This means that the allele C could be X -linked and the mother is not the carrier but the father is

The genotype of father Ben would be Y Xc

Genotype of mother would be XCXC

Genotype of two daughters XCXc  , XCXc which means they are carrier for the next generation

Genotype of Boy - Y Xc

3 0
2 years ago
Compare a bacterial cell and a human body cell. Include in your response
shepuryov [24]

Answer:

Differences: Size

Similarities:  Organelles

Explanation:

The most important difference is size. The volume of a typical human cell is 4,000 times more than the volume of a typical bacterial cell. Today's bacterial cells are direct descendants of the prokaryotic cells found in rocks that were formed one billion years after Earth.

Organelles are the biggest difference between bacteria and cells that make up the human body. An organelle is a tiny cellular structure that performs specific functions within a cell. Organelles are embedded within the cytoplasm of eukaryotic and prokaryotic cells. In the more complex eukaryotic cells, organelles are often enclosed by their own membrane

5 0
1 year ago
Skin color in a certain species of fish is inherited by a single gene with four different alleles. How many different types of g
k0ka [10]

Answer:

4

Explanation:

According to Mendel's law of purity of gametes, each gamete contains single allele for a gene. The alleles of a gene segregate during gamete formation and each gamete has one allele for a gene irrespective of the total number of alleles for a gene.  

If the gene for skin color in a fish species has four alleles, an individuals fish would have only two alleles which in turn would segregate during gamete formation.

Since there are four different alleles of the gene (let's assume a,b,c, and d), total possible gametes produced by this organism will be = 4. A gamete can have one of the total 4 alleles making total 4 types of the gametes each with a or b or c or d allele.  

5 0
1 year ago
According to the law of conservation of matter, matter is never created or destroyed. It only changes form as is evident in the
Arlecino [84]

Lost phosphorus is actually recycled through the processes of mineralization, reabsorption, dissolving, and precipitation.

6 0
2 years ago
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