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mamaluj [8]
3 years ago
13

What is the net force of 20N 55N 20N and 10N

Biology
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:105 N

Explanation: add all the values together

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(70pts) Recall the story of Three Blind Mice where the farmer’s wife cuts off the mouse tails with a carving knife. Because of t
omeli [17]

Answer:

What will happen to the population of mice that it will keep growing at a tremendous rate without a fear of being caught by a predatory. This will increase the population curve of mice but will decrease the population curve of the cat at similar speed.

What else can happen is that cats will no longer be depending on Mice for their food and they will be finding some alternate food host.

What else can happen is the trait of tailless cannot  be favored by environment as proposed by Lamarack in his theory of evolution that if organism acquires some favorable trait during his life then it is possible that he will pass this trait to offspring. Though this trait is not naturally induced therefore,  there are no chances that tailless mice can born and nature choose it as a favorable trait.

In 1880 August weismenn did experiment of similar nature, he cut off the tails of 20 successive generations of mice abut not a single tailless mouse was born. Therefore, he proved that until nature selects some traits, they are not that easily passed from one generation to another if induced by human.

Conclusion: <em>Therefore, after 50 generation mice will be just like parent mice with tails however they will have good population and less predators.</em>


Hope it help!

4 0
3 years ago
How many different blood types are there?
oee [108]
Their is AB, O, B, and A. Which is four. If your were to include whether the blood type was a Negative blood type and positive blood type they're would be . AB+, O+, B+, A+, AB-, O-, B-, A-. Which is eight.
3 0
3 years ago
Why is soil important to plants?
Elena-2011 [213]

Answer:

D-all of the above

Explanation:

The answer is D because....

  • Step one, It is not A Because although the statement is true it is not the best answer to fit the question. The soil does provide nutrients but it also does more, it provides temperature control, anchorage for the plant, and  the soil contains oxygen in it to help the plant grow.
  • Step two, lets look at B it provides them with water. Although this is true like A, it does more than provide them with water. It provides them a medium for growth.
  • Step three, So this answer is not correct because based on the option choices for option D all of the above is correct. It provides them a medium for growth to the plants likings.
  • Step four. This is correct because all of the above are true and best explain why soil is important to plants.
8 0
3 years ago
Read 2 more answers
Atoms of isotopes of the same element contain the same number of
lana [24]

Atoms are the smallest unit of matter. Atoms of isotopes of the same element contain the same number of protons.

<h3>What are isotopes?</h3>

Isotopes are atoms of the same element which have different numbers of neutrons but the number of protons and electrons remains same.

As the isotopes of the atom have the same number of protons, so, their atomic number will also be the same.

Thus, it can be concluded that atoms of isotopes of the same element contain the same number of protons.

For more details regarding isotopes, visit:

brainly.com/question/11680817

#SPJ4

4 0
2 years ago
How is the whale adapted for breathing in the ocean?
frutty [35]
Because whales live in the ocean, many people think they are fish. But do you know that whales and dolphins are not fish? They are mammals. People are mammals too. Mammals are the group of animals that breath air using lungs, give birth to live young (rather than laying eggs), and feed their young with mother’s milk. All animals, including people, need oxygen, a chemical found in the air and in water. Fish use their gills to take oxygen from the water that they live in. But people get the oxygen we need by breathing air, using our lungs. Whales and dolphins use their lungs to breathe air also.

That’s one reasons why they come to the surface of the ocean. Sometimes they lie right at the surface of the water, with just a part of their back sticking out. Look closely at a picture of a whale or dolphin; can you see a nose on the whale? You can’t, because whales don’t have noses like you and me. Instead they have a hole – called a “blow hole” – on top of their heads. Sometimes when a whale breathes air out of its blow hole, it shows up as a spray or mist – called a “spout” – that can be seen many miles away. Blow holes are surrounded by muscles that keep the hole closed when the whale or dolphin is under water and open it when the animal is at the surface and needs to breathe.

In fact, some of the animals have two blow holes next to each other and others have only one. So when you see a picture of a whale, see if you can tell the difference. Pilot whales and dolphins have one blow hole; humpbacks, minkes and right whales have two
7 0
3 years ago
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