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
Vadim26 [7]
4 years ago
11

Identify two requirements for gas exchange which are accomplished by the gills in a fish. How does their structure help to satis

fy these requirements?
Biology
1 answer:
mina [271]4 years ago
6 0

Answer:

Question: Two requirements for gas exchange which are accomplished by the gills in a fish include:

1. Water flowing in opposite directions across the gill lamellae for gas exchange, in other words, respiration is experienced by the fish.

2. The fish allows water through its mouth, then forces the water to drain through the gills supporting gill lamellae, and enhancing gas exchange.

Question: How does their structure help to satisfy these requirements?

1. The rows of gill filaments with numerous folds through diffusion makes sure oxygen from the water moves from a place of more concentration to the blood of the fish which has less concentration causing the removal of carbon dioxide.

2. The large surface area of the gill means it has to maximize the low percentage of dissolved oxygen in the water compared to the higher percentage of oxygen in the air makes it possible for water to pass through the mouth and empty through the gills after the mouth is closed.

You might be interested in
What is the function of Taq polymerase?
Goshia [24]

Answer:

to add nucleotides to a DNA primer

Explanation:

The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology in order to amplify small segments of DNA (100 to 1000 bases). PCR uses a thermostable DNA Taq polymerase that adds nucleotides to the DNA template at the position specified by short single-stranded DNA primers that bind to this template by complementary base pairing during the annealing phase of the PCR cycle. Subsequently, the DNA polymerase adds deoxynucleotide triphosphates (dNTPs) to the opposite DNA strand, this phase of the PCR cycle is known as the elongation phase. Finally, the resulting double-stranded DNA fragment is separated by heat during the denaturation step and this 3-step PCR cycle is repeated many times to amplify the target DNA region.

6 0
3 years ago
As the average kinetic energy of the particles in a gas increases, which of the following
Leno4ka [110]

Answer:

Amontons’s law. If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure

4 0
3 years ago
What is the substrate of exopeptidase?​
Nuetrik [128]

Answer:

Explanation:

Substrate:Smaller polypeptides

Products:Amino acids; Dipeptides

Enzyme Exopeptidase

4 0
3 years ago
Read 2 more answers
The national government wants to increase the number of national parks and recreation areas. How will this act help with the sus
mash [69]
The National government has always wanted to increase the number of National Parks and recreation areas for citizens. This act will help with the sustainability of our environment by preserving biodiversity for our future generations. This will make D the correct answer. <span />
7 0
4 years ago
Read 2 more answers
How are scientific theories and laws developed?<br><br>​
OLga [1]

Answer:

I looked it up ↘️⬇️↙️

Explanation:

scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it.

4 0
4 years ago
Other questions:
  • The body's nervous system is made up of the brain, the spinal cord, the retina, and many other nerves. The circulatory system is
    7·2 answers
  • State how matter moves through the biosphere. State how energy moves through the biosphere. Explain each statement using example
    15·2 answers
  • A cell pumps hormones out into the bloodstream; a process that requires energy. If 4 ATP were converted to ADP, how much energy
    6·1 answer
  • Why is evolution considered the unifying concept in biology?
    9·1 answer
  • Why was it important, in each experiment, for redi and pasteur to have a vial that was completely closed off to the environment?
    7·1 answer
  • Thyroid-stimulating hormone stimulates the thyroid gland to secrete sex hormones. true or false
    14·1 answer
  • The methanogens A. are part of the Archaea.B. oxidize hydrogen gas to produce methane.C. appear only in aerobic environments.D.
    8·1 answer
  • The simplest and smallest life form known is _____.<br> a virus<br> a bacterium<br> an archaean
    9·1 answer
  • HELP PLS!!!!!!!!!!!!
    9·1 answer
  • An ocean food web is shown.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!