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OLga [1]
3 years ago
14

What is the difference between a jetty and a breakwater? Why would they be used?

Biology
1 answer:
frozen [14]3 years ago
5 0
Breakwaters protect an anchorage from the effects of weather and longshore drift, while jetties protect against erosion, by keeping the waves from sweeping the sand away. Difference, they both protect against different things.
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Which statement is correct concerning the process of ecological succession? Shrubs will replace pines during succession. Primary
Mariana [72]

Answer:

Option (2).

Explanation:

Ecological succession is the change in the ecological community of the species with respect to time. Two  types of the succession are  secondary succession and primary succession.

The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.

Thus, the correct answer is option (2).

3 0
3 years ago
Although the exact number of genes in human DNA is unknown, scientists estimate the number to be around 20,000 to 25,000.
Mazyrski [523]
C, you have genes/allels that you got from your parents, but the combination of all your genes together is unique.
3 0
3 years ago
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Unlike mammals,fish
77julia77 [94]
Im going to guess either c or d
5 0
2 years ago
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5. Why do thorns and spines exist? *
Marysya12 [62]

Answer:

to stop animals from eating plants

Explanation:

the thorns and spines help protect the plant for example if we touch the plant it hurts same goes with animals

3 0
3 years ago
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Is gasoline a mixture or a compound?
olga_2 [115]

Answer:

Gasoline is a complex blend of compounds made from petroleum. There are various grades of gasoline. Thus it is a mixture. A classmate claims that brass and silver are both pure substances because they have a uniform composition throughout.

Explanation:

Aluminum is a chemical element so it is a pure substance. Thus it is a mixture. Gasoline is a complex blend of compounds made from petroleum

8 0
3 years ago
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