Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
Answer:
1.(D)
2.(D)
3.(C)
4.(B)
5.(B)
6.(C)
7.(B)
8.(D)
9.(A)
10.(africa)
11.(D)
12(B)
13(?)Convergent boundaries
14(C)
15(A0
16(Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...
Bed or Closet. When you are in bed during an earthquake, stay there. ...
A Room with No Windows. Stay away from glass windows during an earthquake. ...
Door Frame. ...
Outside your Home.
So C?
17(C)
18(D)
19(B or A)
20(B)
Extra credit question
Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows
1.Earth is the only planet known where intelligent life exist.
2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.
3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.
4. Earth has Van Allen radiation belts which protects it from cosmic rays.
5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.
6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.
7. Tectonic plates of earth differentiates it from most other planets.
8. Earth has a solid crust unlike the gaseous planets.
9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.
Brainliest?
Explanation:
The left side of the human body is home to many organs like the left kidney<span>, left </span>ovary<span>and </span>adrenal<span> gland, the </span>stomach<span>, </span>spleen<span>, </span>heart<span>, and the Sigmoid </span>colon<span>. Part of the large intestine and the </span>pancreas<span> are also located on the left side of the body, according to MedGuidance.</span>
<u>Chemical bonds between glucose molecules in starch that are easily broken by human </u><u>digestive enzymes </u><u>are called</u><u> alpha bonds.</u>
How is starch broken down into glucose?
- When you consume starchy meals, an enzyme called amylase located in your saliva and small intestine breaks down the starches into sugars like glucose, maltotriose, and maltose.
- Other enzymes, such as maltase, lactase, sucrase, and isomaltase, further break down these compound sugars into simple sugars.
What is alpha and beta bond?
- The 1,4 alpha and 1,4 beta glycosidic linkages are the two different forms of glycosidic bonds.
- When the OH on the carbon-1 is below the glucose ring, 1,4 alpha glycosidic bonds are created, whereas when the OH is above the plane, 1,4 beta glycosidic bonds are created.
Learn more about alpha bonds
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Answer:
New neurons form and new dendrites grow throughout adulthood.
Explanation:
