Answer:
W - Facilitates movement of air by expansion and contraction, X - Traps dust and helps to filter inhaled air, Y - Prevents the wind pipe from collapsing, Z - Help in exchange of gases.
Explanation:
Diaphragm is the muscle that separates the thoracic cavity from the abdomen. The diaphragm is the main muscle of respiration. Contraction of the diaphragm muscle expands the lungs during inspiration when breathing air in. The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs. Hairs and mucus lining the nasal cavity help to trap dust, mold, pollen and other environmental contaminants before they can reach the inner portions of the body. The trachea, or windpipe, is a 5-inch long tube made of C-shaped hyaline cartilage rings lined with pseudostratified ciliated columnar epithelium. The trachea connects the larynx to the bronchi and allows air to pass through the neck and into the thorax. The rings of cartilage making up the trachea allow it to remain open to air at all times. Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues.
Answer:
There will be more yellow-colored frogs in the population than red-colored frogs
Explanation:
<u>Available data</u>:
- Strawberry poison dart frogs have different skin colors
- The frogs can be categorized broadly using the colors green, blue, yellow, and red.
- Frogs eaten by snakes
<u>Number of snake attacks Frog color</u>
145 Approx Green
180 Approx Blue
125 Approx Yellow
145 Approx Red
The phenotype of individuals and the environment where they live, interact and determines the genes´ destiny in space and time. The result of this interaction and the gene destiny is Natural Selection. Natural selection selects beneficial alleles and increases their frequency in the population.
The attack by snakes is acting as a selective pressure on the frogs´ population. It is an ecological pressure that is modeling the frogs´ phenotype.
Animals that suffer more attacks are the blue ones, followed by green and red frogs. Those that suffer the fewest number of attacks are the yellow individuals.
So natural selection will be acting on this population favoring the alleles that code for yellow color. Genes that express yellow color increase more the frogs´ fitness than genes that code for the other colors. So natural selection increases the frequency of genes coding for yellow color and will decrease the frequency of the other alleles. Probably the less favored will be genes that express blue.
The concentration of the diluted solution if one has 500 mL of a 3 M KOH solution and 1000mL of distilled water is added is 1.5M.
<h3>How to calculate concentration?</h3>
The concentration of a solution can be calculated using the following formula:
C1V1 = C2V2
Where;
- C1 = initial concentration
- C2 = final concentration
- V1 = initial volume
- V2 = final volume
3 × 500 = 1000 × C2
1500 = 1000C2
C2 = 1500/1000
C2 = 1.5M
Therefore, the concentration of the diluted solution if one has 500 mL of a 3 M KOH solution and 1000mL of distilled water is added is 1.5M.
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A wait of more than two hours before testing has the least impact on the cell counts type of blood test.
<h3>What is often tested for during a blood test?</h3>
Blood tests are often carried out.. Find out how well-functioning organs like your kidneys, liver, heart, or thyroid are, as directed by healthcare professionals. aid in the diagnosis of illnesses like HIV/AIDS, diabetes, coronary heart disease, and cancer.
<h3>Blood tests: Do they reveal infection?</h3>
- Your doctor can identify whether you have a specific sickness that can circulate through your system through your bloodstream using a blood culture test.
- This infection is referred to the doctors as systemic. The examination looks for bacteria or yeast that may be the source of the infection in a sample of your blood.
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Answer:
The following lists the correct requirements for a black hole to form: The star must be 10 to 28 times larger than Earth's sun, and a supernova explosion must have occurred.
Explanation:
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