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
denis23 [38]
3 years ago
10

21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.

Biology
1 answer:
amid [387]3 years ago
3 0
4) ecological niche without competition
You might be interested in
Is the growing of new plants from other plant parts.
Bogdan [553]
Vegetation reproduction  <span />
7 0
3 years ago
The one factor that a scientist changes during an experiment​
mamaluj [8]
Independent variable
6 0
3 years ago
A culture of living cells includes a solution called a
Archy [21]

Answer:

C) medium

Explanation:

medium can be solid, semi-solid or liquid

mediums are designed to grow living cells of plants, animals, humans and microbes

brainly.com/question/11473801

4 0
2 years ago
You work as a medical professional who identifies abnormalities and diseases early on in babies by testing their genes before th
garik1379 [7]

Answer: karyotype

Explanation: if you suspect trisomy, you need to count chromosomes!

4 0
3 years ago
Which statement accurately compares a radio wave and an infrared wave? *
ser-zykov [4K]
The first option is correct.

A radio wave has a longer wavelength and a lower frequency than an infrared wave.
7 0
3 years ago
Other questions:
  • If an organism’s diploid number is 12, its haploid number is
    14·1 answer
  • Which of the following is NOT TRUE about Titan?
    12·2 answers
  • Chemical reactions in cells are faster than the same reactions outside cells. True or false?
    7·1 answer
  • Which of these is best described as being on the arm of a spiral?
    8·1 answer
  • Data collection relies entirely on scientific experiments? true or false
    10·1 answer
  • What to write pleaseeeeeeeeeeeeeeee helppppp
    7·1 answer
  • during meiosis chromosome pairs randomly line up along each side of the cell equator this arrangement mixes up the chromosomal c
    7·1 answer
  • In which part of the nephron are sodium and chloride ions actively reabsorbed?
    6·1 answer
  • Carbon dating is useful for
    5·1 answer
  • Creating a checklist of activities is not a helpful strategy for determining what to study for an upcoming test. Please select t
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!