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Cloud [144]
3 years ago
9

What structure is present in dolphin but absent or greatly reduced in other whales?

Geography
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

The term “whale” is a word used to describe several different types of marine mammals, which include whales, dolphins and porpoises.

Together these three distinct animal groups make up what is known as the cetacean species.

While the name whale can sometimes refer to all cetaceans (whales, dolphins & porpoises) it usually excludes dolphins and porpoises in order to ensure that the three animal groups are easily identifiable.

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2. What changes take place during physical weathering?
stepan [7]

The correct answer is A. Rocks are broken into smaller pieces.

Explanation:

In geography, the term weathering is used to refer to the process in which rocks and others such as soil or mineral break into smaller pieces. This can occur due to chemical agents or due to physical factors. Physical weathering includes factors such as temperature, physical contact or pressure that make rocks and other materials break in smaller pieces without changing the general properties or composition of the material. Additionally, these pieces along with other materials form the soil. According to this, the change that takes place during physical weathering is "Rocks are broken into smaller pieces".

6 0
3 years ago
Why the increased phosphate levels cause a decrease in biodiversity
loris [4]
<span>The phosphate enters the ecosystem and becomes tied up in the biogeochemical system where it is recycled. The rapid growth of aquatic vegetation and/or increase in the algal population can cause the death and decay of vegetation and aquatic life because of the decrease in dissolved oxygen levels.</span>
8 0
3 years ago
What is the name of a city that is located at 39 degrees north and 75 degrees south?
GrogVix [38]
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3 0
3 years ago
Why did it take so long for foreigners to enter the area now known as kenya?.
Len [333]

Answer:

fierce warrior tribes

Explanation:

For hundreds of years, outsiders did not enter the region now known as Kenya because of the fierce warrior tribes that inhabited the area. Arab traders took control of Kenya's coast during the 1800s. Next came Germany and Great Britain, but by the 1900s, the British were the only foreigners who remained.

5 0
2 years ago
What did they start to look at to determine earths age?
lbvjy [14]

Answer:

En 1953 determinó con exactitud la edad de la Tierra en 4.550 millones de años, con un margen de error de unos 70 millones de años.

Explanation:

3 0
3 years ago
Read 2 more answers
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