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Makovka662 [10]
1 year ago
13

In which two Earth regions is oxygen the second most abundant element by volume?

Biology
1 answer:
Umnica [9.8K]1 year ago
5 0

Answer:

By volume, oxygen is the second most abundant element in the hydrosphere and troposphere. The troposphere is the lowest part of Earth's atmosphere which is nothing but air, and the hydrosphere is made up of the Earth's water which is full of oxygen at any given moment.

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Why are the cells of the alveoli so flattened?
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Gas exchange occurs in the alveoli of the lungs and each is made from a single layer of flat cells, Many alveoli in the lungs, so a large surface area for exchangement of C02 and O2. They are surrounded by a network of capillaries and oxygen diffuses out of them via the alveolar epithelium to the hemoglobin.

Hope this helps

3 0
1 year ago
Tessa was recording observations of some items around her classroom. She recorded a physical description of each item, the volum
Marta_Voda [28]
C) balance

Explanation: ruler shows length and the other 2 are used for liquids
5 0
2 years ago
The average adult (like Hank) is _________% water, ________% protein, _______% fat, _______% minerals, and _______% carbohydrate
Oliga [24]

Answer: 64% water, 14% protein, 16% fat, 4% minerals 1% carbohydrates

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It’s what he says in the video

3 0
1 year ago
Determine the median value for foot width for males and for females. Describe in complete sentences the method you used to deter
Ipatiy [6.2K]

Answer:

This question is incomplete because of the absence of the data referred to in the question

Explanation:

This question is incomplete but the data referred to in the question is attached below

In order to determine the median value of any set of data, the data is first of all rearranged chronologically (ascending) and then the middle value is picked if the number of data is odd but if the number of data is even, the two middle values are added together and then divided by two to get the median.

From the data provided, the values (which are 10 in number) can be arranged as shown below (with the median values in bold)

Females: 5, 7, 7, 7.5, 7.5, 7.8, 7.8, 8, 8, 17

Males: 4.5, 7.5, 9, 9, 9.2, 9.3, 10, 10, 10.5, 13

Since the number of data is even, the two middle numbers (in bold) shall be added together and then divided to get the median as shown below

The median value for the females foot width is = 7.5 + 7.8/2 = 7.65 cm

The median value for the male foot width is = 9.2 + 9.3/2 = 9.25 cm

4 0
1 year ago
Identify a reason why meiosis leads to significant genetic variation while mitosis does not.
liraira [26]
Because meiosis only has half of the genes.

In mitosis, the cell produced will have an exact number of chromosome like the parent cells. But in meiosis, only half of the chromosome will be given. That will make many variations since the chromosome is split in random. The process to split the gene doesn't include a process to making it move in the same manner so the gene position can be changed in the different case.
4 0
1 year ago
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