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
Lostsunrise [7]
2 years ago
12

What happens to urchins if the oxygen percent concentration drops too low for an extended period of time?

Biology
1 answer:
makkiz [27]2 years ago
7 0

Answer:

Since sea urchins are picky, they are used as indicator organisms in public aquariums to determine if the system is functioning properly. This is because they are very "picky" about water quality. If the water is contaminated, the sea urchins will be the first to show signs of stress, spines laying down or falling off. Do use an aquarium filter and do clean up the day after feeding. Any metal exposed to the seawater will corrode and poison the tank. A dying sea urchin will often spawn out and rot out, causing the others in the tank to spawn and die as welll.

Explanation:

You might be interested in
What is the relationship between DNA, chromosomes, and<br> the nucleus?
aliya0001 [1]

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Other Info That Might Help:

In contrast, in eukaryotes, all of the cell's chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.

3 0
2 years ago
Need help with all the questions in the picture<br> (7th grade science)
Naya [18.7K]
Well the picture could help :)
5 0
3 years ago
When processing patient blood specimens and handling other potentially infectious material, the best choice of gloves is?
Andreyy89
Disposable powder hypoallergenic latex gloves
4 0
3 years ago
I need to know what this is pls help me
mr Goodwill [35]

Answer:

while snail

rabbit

grasses

owll

7 0
2 years ago
Read 2 more answers
What kind of information does the bar graph provide? Put into
ololo11 [35]

Answer:

abcdefghijklmnopqrstuvwxyz

Explanation:

7 0
3 years ago
Other questions:
  • In general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-posi
    9·1 answer
  • Primary succession differs from secondary succession in what way? ch 54
    7·1 answer
  • Humans developed this because it helped them stay alive by restricting the amount of information processed by the brain and scan
    15·1 answer
  • Someone plz help me
    14·1 answer
  • When analyzing dna microarray results, what does a lack of color indicate?
    9·2 answers
  • One criticism of the dsm that is noted by your authors is that it adheres to model, which means that a person is seen as either
    6·1 answer
  • Which of the following characteristics DNA?
    5·1 answer
  • The National Wildlife Refuge supports ______ wildlife refuges
    5·2 answers
  • If I am going up the concentration gradient, am I going from: *
    10·1 answer
  • The process that all living things go through in order to maintain a constant internal environment 1.Homeostasis 2.Positive feed
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!