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Zina [86]
3 years ago
12

Explain why fish die when they do not get enough oxygen​

Biology
1 answer:
Shtirlitz [24]3 years ago
6 0

Answer:

Fishes have a very particular respiratory system, which manages to extract the dissolved air from the water. They do it thanks to the gills, membranes located on the sides of their body. When the animal opens and closes its mouth, the liquid enters its interior through them and that is when the blood vessels absorb the necessary oxygen. If the water has toxic components or dirt, there will not be the necessary amount of oxygen.

Explanation:

Fishes obtain the oxygen they need from the water through the gills: membranous structures supported in turn by cartilaginous or bone structures. The gill surfaces are very wide, and respiratory gases are exchanged between blood and water as it flows over them. The fish takes water through its mouth and, through a complex process, releases the water through the lids, previously passing through the lamellae, where oxygen is captured. If the water has toxic components or dirt, there won’t be the necessary amount of oxygen, there would be impurities that limit oxygen. Pollution causes the loss of oxygen. Efficient oxygen absorption from water (as gills do) is essential for active organisms in the aquatic environment. Fishes promote gas exchange by ventilating the gill surfaces, either by actively pumping water through the gills, or by continuously swimming with their mouths open. In the end, the fish die because they cannot find what they need to live.

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Explanation:

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8 0
3 years ago
In a cross between two mice that are heterozygous for agouti, black, color, and piebaldism, what is the probability that offspri
taurus [48]

Answer:

9/256

Explanation:

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As  each gene is considered separately and the multiplication rule is used. Therefore the probability of getting a solid color would be 1/4 and black fur would be 3/4. Similarly the probability of getting the colored fur is 3/4 and getting a piebald( white patches) is 1/4

Then the combined probability is (1/4*3/4*1/4*3/4)= 9/256

5 0
3 years ago
Below is a picture of a tomato plant. It is a multicellular organism with many parts that work together to keep the plant alive.
galben [10]

Answer:

1. Roots: anchor the plant in soil and absorb water and minerals

2: Stem: Holds the plant upright and bear leaves, branches and fruits.

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Explanation:

1. Roots: The cells of roots are specialized to penetrate the soil deep to anchor the plant and absorb water and minerals for nutrition of plants.

2: Stem: The cells of stem impart mechanical strength to keep the plant upright and bear leaves, branches and fruits.

3. Leaves: Cells of leaves have chlorophyll pigment to carry out photosynthesis to make food for other plant parts.

4. Flower: Some of the cells of flowers produce male and female gametes that fuse leading to seed formation. Seed germination maintains the continuity of the species.

6 0
3 years ago
Read 2 more answers
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saveliy_v [14]

Answer:

I would say the answer is C.

Explanation:

I chose A (which population most likely experienced a genetic mutation)

and got it wrong on Edg.2021

4 0
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B) over production. Frogs lay thousands of eggs because some die, therefor, the frog needs to produce more.
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3 years ago
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