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gtnhenbr [62]
3 years ago
9

Can you guys please help me on this

Biology
1 answer:
Semenov [28]3 years ago
3 0
They need to divide so they replace old or damaged cells
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Plzzzzz help ASAP
Nimfa-mama [501]

Answer:

Water is transported from one area to another area that has little water.   Water is collected and salt allowed to settle at the bottom.

Explanation:

Desalination of water is a process of the removal of salts and minerals from the water. This process is used for the production of water suitable for human consumption or irrigation.

Natural desalination occurs trough the hydrologic cycle when seawater evaporates. On the other hand, manipulated desalinization is an energy expensive alternative to natural desalination.

6 0
3 years ago
Pls help, ASAP for my biology final. Thanks
zvonat [6]
A. All distant galaxies are moving away from us.
8 0
3 years ago
A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Gennadij [26K]
The basics would be that you'd need to find out if they could exchange genetic information. If not, they couldn't be considered part of one species. Set-up 2 artificial environments so both groups would produce pollen at the same time. Fertilise both plants with the other's pollen. Then fertilise the plants with pollen from their own group. 
Count the number of offspring each plant produces. 
If the plants which were fertilised by the opposite group produce offspring, they are of the same species. You can then take this further if they are of the same species by analysing if there is any difference between the number (and health) of offspring produced by the crossed progeny and by the pure progeny. You'd have to take into account that some of them would want to grow at different times, so a study of the progeny from their first sprout until death (whilst emulating the seasons in your ideal controlled environment). Their success could then be compared to that of the pure-bred individuals. 
Make sure to repeat this a few times, or have a number of plants to make sure your results are accurate. 
Or if you couldn't do the controlled environment thing, just keep some pollen one year and use it to fertilise the other group. 
I'd also put a hypothesis in there somewhere too. 
The independent variable would be the number of plants pollinated. The dependant variable would be the number of progeny (offspring) produced. 
5 0
3 years ago
I need help with this
Inessa [10]

G...eventually the larger fish would catch on that these smaller fish are a problem.

8 0
3 years ago
How can fossils BEST help paleontologists and biologists classify organisms?
Allushta [10]
C Fossils allow scientists to have an idea of the time scale that traits evolved.
4 0
3 years ago
Read 2 more answers
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