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FromTheMoon [43]
3 years ago
12

21) How long can penguins hold their breath while hunting?

Biology
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

20 minutes

Explanation:

Emperor penguins can hold their breath for an amazing 20 minutes! They dive under the ice in the cold oceans around Antarctica when they hunt for food.

Alinara [238K]3 years ago
3 0

Answer:

the emperor penguin can hold their breath for 20 minutes

Explanation:

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A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. How many bacteria are grown during t
pochemuha
Here is a list showing how the bacteria grows:

Begin      -   15
1st hour   -   30
2nd hour  -   60
3rd hour   -  120
4th hour   -   240
5th hour   -   480
6th hour   -   960
7th hour   -   1,920
8th hour   -   3,840
9th hour   -   7,680
10th hour -   15,360
11th hour -   30,720
12th hour -   61,440

As you can see, the number of bacteria present is doubled at the end of each hour, as the question states. However, the question is not asking for the total number of bacteria at the end of the 12th hour; it is asking for the bacteria GROWN during the 12th hour.

Because there were 30,720 bacteria at the end of the 11th hour, and 61,440 at the end of the 12th, the number of bacteria that grew during that last hour must be 61,440 - 30,720 = 30,720 bacteria.

(P.S. the answer would be 61,440 if it was asking for the TOTAL number of bacteria at the end of the 12th hour)
7 0
3 years ago
Which type of muscle is found in the lining of the arteries? smooth skeletal cardiac
givi [52]

Answer: Vascular smooth muscle

Explanation:

They are lined with smooth muscle tissue.

4 0
4 years ago
In this food web, what is represented by the chains of arrows from the grass to the fox?
kvv77 [185]

the transformation of energy from one living thing to another

3 0
4 years ago
Read 2 more answers
How did the articles of confederation compare to the constitution in regard to sovereignty?
natita [175]

States enjoyed greater autonomy under the Articles, whereas the Constitution granted some powers to the states.

<h3>What is articles of confederation?</h3>
  • The 13 founding states of the United States of America came to an agreement known as the Articles of Confederation and Perpetual Union, which functioned as the country's first system of governance.
  • On November 15, 1777, the Second Continental Congress approved it following lengthy discussion and forwarded it to the states for ratification.
  • In the Articles of Confederation, which served as the nation's first constitution, the confederacy of the former 13 colonies was referred to as "The United States of America."
  • The 13 articles that made up the Articles of Confederation granted authority to a federal government headed by Congress.
  • Following the United States' declaration of independence from Great Britain, the national government's functions were codified in the Articles of Confederation.
  • The Continental Congress approved the Articles of Confederation on November 15, 1777.
  • This text functioned as the first constitution of the United States.
  • It lasted from March 1, 1781, until the current Constitution took effect in 1789.

Learn more about the articles of confederation here:

brainly.com/question/793228

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5 0
2 years ago
The human body does not constantly lose water through _______.
S_A_V [24]

The human body does not constantly lose water through hydration and circulation. When someone is hydrated, he is drinking an enough amount of water to sustain the needs of his body. Circulation then helps this in distributing the water in different parts of the body.

8 0
4 years ago
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