1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
2 years ago
9

Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, kudzu was planted along southern roadways to

control soil erosion. Adding a foot of vine a day in the spring and summer,
kudzu quickly grew out of control. Why can introducing a new species to an existing ecosystem often be a disaster?
А
The new species can harm native organisms and damage the ecosystem
B. The new species can create excess nutrients in the soil that can damage native species
C
The new species can eventually become extinct
D. The new species can rapidly evolve into a dangerous subspecies that cannot be destroyed.
Biology
1 answer:
Reptile [31]2 years ago
3 0

Answer:

9

Explanation:

You might be interested in
What is the definition of a lake?
Cerrena [4.2K]
<span>a large body of water surrounded by land.</span>
5 0
3 years ago
The cells of plants and animals are similar, except for a few different structures. Which structures are only found in plant cel
Leviafan [203]

Answer:

large central vacuole

cell wall

Explanation:

Let me clear some things up for you. There are two types of cells - Prokaryotes and Eukaryotes. The principle difference between these types of cells are the structure of their genome. In case of prokaryotes, the genomic matter do not have a defined structure, it just kind of floats around in the protoplasm. But in the eukaryotes, the genome is more structured, have all kinds of proteins associated with them, and is surrounded by a two layered sack called the nuclear membrane. Both plant and animal cells have these feature of structured nucleus, therefore, they are both eukaryotes.

Now for the difference between plant and animal cells. the features you mentioned are unique about plant cells, but do not rule them out from being eukaryotes, as the 'true' structure of the nucleus is still there. Cell walls are necessary for the plant cells because plants do not posses an endoskeleton like most of the animals do. The cell wall makes the whole plant rigid so they don't fall apart or appear like a blob. Chloroplast is where photosynthesis happens, so it should most definitely be in a plant cell. Animals don't do photosynthesis so they don't have chloroplasts. Vacuoles are also present in animal cells, but they are much smaller, greater in number, and are known as lysosomes. Functionally they are virtually the same.

7 0
1 year ago
Read 2 more answers
Why does the amount of daylight we see each day change throughout the year?
AlladinOne [14]
Yes it dose because you will notice during the winter it's more dark and
cloudy and changes through the seasons
7 0
3 years ago
How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged
almond37 [142]

Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

3 0
3 years ago
RNA has a different nitrogenous base. This" different" base pairs with Adenine meaning RNA base pairs are represented ( A-U &amp
iren2701 [21]

Answer:

Uracil

Explanation:

DNA only uses Thymine so that leaves Uracil for RNA because all of the other bases are used for both.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The location of the neritic zone is determined by ______
    9·2 answers
  • Decribe the importtant role that carbon plays in liveing things
    9·1 answer
  • The two strands of a dna molecule are held together by hydrogen bonds between the
    6·1 answer
  • Plz help it due today
    15·1 answer
  • How dose natural selection lead to evolution
    5·1 answer
  • PLEASE HELP<br><br> Explain the difference between Positive and<br> Negative Tropism
    5·1 answer
  • What are some ways to keep your bones healthy?(name atleast 3)
    7·1 answer
  • A system that relates the layers of rock to time?
    7·1 answer
  • 3419059779 pppppppppppppppppppppppppppppppppppp1234​
    9·1 answer
  • Which of the following correctly compares Kinetic and Potential Energy?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!