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il63 [147K]
2 years ago
11

What is the potential disadvantage of external digestion ​

Biology
2 answers:
harina [27]2 years ago
8 0
This dispersal reduces the likelihood that a sperm will find an egg. Many sperm and eggs die before achieving fertilization. The low success rate of external fertilization puts animals at a reproductive disadvantage compared to internal fertilization.
LenKa [72]2 years ago
3 0

Answer:

Select the correct texts in the passage.

Which two details are most important to include in a summary of the excerpt?

excerpt from Robinson Crusoe

by Daniel Defoe

When I waked it was broad day, the weather clear, and the storm abated, so that the sea did not rage and swell as before. But that which

surprised me most was, that the ship was lifted off in the night from the sand where she lay by the swelling of the tide, and was driven up

almost as far as the rock which I at first mentioned, where I had been so bruised by the wave dashing me against it. This being within

about a mile from the shore where I was, and the ship seeming to stand upright still, I wished myself on board, that at least I might save

some necessary things for my use.

When I came down from my apartment in the tree, I looked about me again, and the first thing I found was the boat, which lay, as the wind

and the sea had tossed her up, upon the land, about two miles on my right hand. I walked as far as I could upon the shore to have got to

her, but found a neck or inlet of water between me and the boat which was about half a mile broad; so I came back for the present, being

more intent upon getting at the ship, where I hoped to find something for my present subsistence.

Explanation:

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Describe three of Darwin's observations about animals in south America and on the galapagos islands.
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Tortoises are larger on the islands, where there are less predators
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Animals are different within species and mate all the way to the point where some must die
4 0
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Emily is developing a computer model of protist populations in certain areas of the ocean, and how they help maintain homeostasi
adell [148]

As the question is incomplete and there are no statements available based on which the question can be answered. But based on the knowledge it can be answered.

Answer:

Most of the corals contains photosynthetic algae which are known as zooxanthllae which lives in the tissues of the corals. Algae and corals have mutualistic relationship.

The corals provide algae space to live and algae provides coral  food such as glucose and glycerols to them which are considered as products of photosynthesis.

If the producers are hampered by the catastrophic event then the main source of the food will be hampered. There will be less or no food source for the corals which covers a large area in the marine ecosystem.

There are chances that there will be more load on the other photosynthetic organism in water as there will be more population dependent on them for food.

Hence, if there is a loss of habitat for these protist other levels of food chain will be affected due to inter connection.

4 0
3 years ago
One serving of total cereal has 100 calories. John ate 3 servings for breakfast. How man calories from total cereal did John eat
Kamila [148]

Answer:

300 calories

Explanation:

100x3=300

8 0
3 years ago
The controls of the windshield wiper and windshield washer are usually located on _______.
Darya [45]

The controls of the windshield wiper and windshield washer are usually located on Right lever. Two levers on steering column contain controls for driving. .

A sun visor is located ion the above of windshield  also called windscreen . Designed with a flap that is adjustable to help shade the eye of drivers and passengers from the glare of sunlight.

The combination switch they flip beam switch or the directional switch that is on the left hand stalk signals and cancels turn indications when moved up or down.Automotive wipers are controlled by a microprocessor. windshield washer used to keep it clear for rain . snow , dust.

To learn more about the flap here

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5 0
2 years ago
When a gas is compressed, its volume__<br><br> does not change<br> increases<br> decreases
igomit [66]

Answer:w

when a gas is compressed, its' volume decreases.

Explanation:

When a gas is compressed, its volume usually decreases which also causes an increase in temperature. The pressure in addition increases which causes and increase of gas molecules. The molecules collide more frequently which is the reason why temperature will increase.

5 0
3 years ago
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