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madam [21]
2 years ago
13

Explain why algae swim up from the bottom of a pond during an afternoon

Biology
1 answer:
Effectus [21]2 years ago
6 0

Explanation:

What happens during daytime is, oxygen that gets trapped between filaments of algae, moves them to the surface  and during night as O2 is not produced, they slowly sink to lower depths, and you don't see them

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What do you think has been the
Zepler [3.9K]

Answer:

kjkhjhjhhhj

Explanation:

6 0
2 years ago
If anyone is willing to help me, I will greatly appreciate it. I can’t afford to fail… I need to graduate so I can achieve my go
Valentin [98]

Answer:

1) you're going to have to flip the coins (or fake numbers) for the experimental trials.

2) for the theoretical, there is 1/2 chance for heads or tails with each toss, so you'd expect that out of 10 tosses, 5 heads, 5 tails. out of 100 tosses- 50 heads, 50 tails.

When tossing 2 coins- 1/2×1/2 = 1/4 (25%) chance that 2 heads, 2 tails, or 1 heads & 1 tails. Deviation value comes from after you done your flipping and recorded your data. So if on 100 flips you actually got 50 and 50 (rarely us that exact ;), the deviation from the expected of 50/50 would be 0.00. If however you flipped 100 heads or 100 tails (impossible), then the deviation value would be 1.00.

|(100-50)| ÷ 50 = 50÷50 = 1.00

So usually you may have data like: 47/53 or something a little off than 50/50, making deviation |(47-50)| ÷ 50 = 3÷50 = 0.06.

Now the number of flips is important for the outcome! So if a coin toss if 10 times had 4 heads, 6 tails, the deviation value would be:

|(4-5)| ÷ 5 = 1÷5 = 0.20

So increasing the # flips DECREASES the deviation value!!

Whether it's from 10 to 100, or from 100 to 200. Look at my example of how the 10-flip deviation of 0.20 decreased to 0.06 with 100-flip

5 0
2 years ago
Read 2 more answers
Which of the following is not part of the circulatory system? Group of answer choices Heart lungs Blood Vessels Blood
algol13

Answer:

according to meitis the lungs

Explanation:

since lungs fallunder breathing system

5 0
3 years ago
Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
Rus_ich [418]

Answer:

What are so called breast-cancer genes, are mutations in two genes: BRCA1 (BReast CAncer gene one) and BRCA2 (BReast CAncer gene two), and are also associated with ovaric cancer. According to the question, these genes are present in the popolation despite surgeries and deaths, and asks why. Surgeries does not eliminate the genes, they eliminate the tumors, and people can still reproduce after that. And also, most people already had offspring before they know they have cancer, so they are inheriting the mutations on the genes anyway.

Explanation:

4 0
3 years ago
Through the digestion system, water is mainly absorbed in the A. gallbladder. B. stomach. C. large intestine. D. small intestine
bogdanovich [222]
I would say D. small intestine

If you want an explanation, here it is

After leaving the stomach, water is absorbed mostly in the early segments of the
small intestine, the duodenum, and the jejunum. A small portion of all water absorption occurs in the stomach and the colon: the small intestine absorbs 6.5L/day, whereas the colon absorbs 1.3L/day.
5 0
3 years ago
Read 2 more answers
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