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Semmy [17]
3 years ago
10

Which of the following statements about aquatic ecosystems IS correct?

Biology
1 answer:
nirvana33 [79]3 years ago
8 0
Hey! I think the correct answer would be the last one! Estuaries are where fresh water from rivers and streams mixed with salt water
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How does the human system of reproduction result in people getting one copy of a sickle cell gene and one copy of a normal gene?
Bogdan [553]

Answer:

Every human has a couple of genes that will be separated when they make gametes. A baby will get one gene from each parent (one sperm and one egg).  

Sickle cell gene is inherited by an autosomal recessive pattern, which means you need both defect genes to get the disease. The person with 1 defect gene can survive and live like normal. This person called a carrier because they carry one defect gene.

Someone that carries one defect gene can come as a result if you cross normal or carrier genotype (AA/Aa) with a carrier(Aa), or with homozygote recessive that carries 2 defect genes (aa). The person will get one healthy gene from the first parent with normal genes, and one defect gene from the second parent.

3 0
3 years ago
Which plate borders the Philippine plate?
Oduvanchick [21]

The Philippine Sea plate is tectonically unusual in that almost all the boundaries are convergent. The Pacific plate is subducting beneath the Philippine Sea plate to the east while the west/northwestern part of the Philippine Sea plate is subducting beneath the continental Eurasian plate.

6 0
3 years ago
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If heart rates is 76 beats per minute how many times the heart beat in a day
Vedmedyk [2.9K]

Answer:

109,440 beats per day

Explanation:

75 times 60 (the amount of minutes in an hour) equals 4,560

456p times 24 (the amount of hours in a day) equals 109,440

5 0
3 years ago
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Do you think it is okay to change the DNA of any species? Why or why not?
olchik [2.2K]

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ummmm not any species. maybe experimenting with plants or something. but you shouldn't interfere with animal life.

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3 years ago
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Explanation: Ctenophores move in water, they have a flapping motion.

hope this helps :)

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