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
Mumz [18]
3 years ago
11

At first glance, it might seem counterintuitive with respect to energy use that many sharks must swim continuously or they will

die. why is it important to their metabolic needs that sharks keep swimming? check all that apply.
Biology
2 answers:
7nadin3 [17]3 years ago
6 0

Answer:

At first glance, it might seem counterintuitive with respect to energy use that many sharks must swim continuously or they will die. why is it important to their metabolic needs that sharks keep swimming? check all that apply.

The answer to the question above is explained below:

Explanation:

Gill involve external extensions from the body surface, it is the respiratory organ in many aquatic animals. They have feathery parts which cause water to move across the animal's body.

Gills are characterized by large amounts of surface area that function in gas exchange.

Sharks are  type of fish that have no bones, only cartilage.

Why Sharks needs to keep swimming:

  1. Sharks lack the swim bladder that most fish use to adjust their buoyancy. Swimming creates lift that prevents sharks from sinking.
  2. Sharks, like other marine animals, get their oxygen from the water. Nurse sharks, however, do have mechanisms to move water through their gills, and thus do not need to swim constantly to “breathe,
  3. Sharks use a ramjet ventilation system that requires them to swim to force water to the gills. Species that cannot pump water through their gills, they have to constantly swim to be able to breathe.
  4. Some sharks must swim constantly in order to keep oxygen-rich water flowing over their gills. This allows them to rest on the sea floor and still breathe.  
  5. However, Some sharks, such as the tiger shark, can switch between buccal pumping and ram ventilation depending on quickly they're swimming.

Carbon dioxide concentration in the water outside their gills increases due to the increased cellular respiration in their muscles.

Sharks have prominent spiracles, or respiratory openings behind the eyes that allow the fish to pull in water while buried under sand. Carbon dioxide waste also passes from the shark's blood and out of its body through the gill tissue.

As water passes over the gill's membranes, tiny blood vessels extract oxygen from the water.

zaharov [31]3 years ago
5 0

Answer: seen below

Explanation:

This is because they have gills which function through the concurrent exchange of oxygen between the water and the blood of the sharks. This water passes over the gills in the opposite directional flow of the sharks blood in the gills. So the carbon dioxide concentration in the water outside their gills increases due to increase cellular respiration in their muscles.

Therefore, it is important that sharks must swim constantly in order to keep oxygen-rich water flowing over their gills.

You might be interested in
5. The mangrove is a plant that lives in ocean water. What would happen if root cells from a mangrove
Tresset [83]

Answer:

it will wither since it has been placed on a fresh water.

Explanation:

since mangrove plant grows on a salty water environment the available water from the mangrove plant will move to a highly concentrated region to a lowly concentrated region

6 0
3 years ago
What part of the body uses active transport to take up nutrients after concentration has reached equilibrium
jekas [21]

The villi of the small intestine use active transport to take up nutrients after concentration has reached equilibrium.

<h3>What is Active transport?</h3>

Active transport may be defined as the process that occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against a concentration gradient.

During the process of digestion, the villi in the small intestine enthrall the soluble nutrients gradually. Over time, the concentration of nutrients in the villi acquires an equilibrium with the concentration in the gut. Until here, the nutrient uptake is carried by the process of passive diffusion.

But after attaining the equilibrium, the nutrient uptake is carried by the process of active transport.

The complete question is as follows:

What part of the body uses active transport to take up nutrients after concentration has reached equilibrium?

  • Lungs
  • Stomach
  • Small intestine
  • Liver

Therefore, the correct option for this question is C, i.e. small intestine.

To learn more about Active transport, refer to the link:

brainly.com/question/18434867

#SPJ1

7 0
2 years ago
Which of the following best describes a person's genotype?
Svetlanka [38]
Answer: A. The alleles that a person has.
6 0
3 years ago
What is a strategic mineral?
Veseljchak [2.6K]
Your answer would be B. Hope this helped :)<span />
5 0
3 years ago
Read 2 more answers
Difference betewwn pro end eucariotes
marshall27 [118]

Answer:

hey!

your answer is

Prokaryotes are organisms made up of cells that lack a cell nucleus or any membrane-encased organelles. Eukaryotes are organisms made up of cells that possess a membrane-bound nucleus that holds genetic material as well as membrane-bound organelles.

Explanation:

I hope this helps

8 0
3 years ago
Other questions:
  • A third species of kangaroo rat is introduced into the habitats of the two species from Question 5. If this third species is bio
    6·1 answer
  • Are the alps and the appalachians the same
    10·1 answer
  • Explain why species with a diverse gene pool are usually less threatened by environmental change than are species whose members
    9·1 answer
  • Metabolic pathways in which cells harvest energy from food molecule in the absence of oxygen is called____
    8·2 answers
  • The Sun and all of the objects that orbit it are known as
    14·2 answers
  • 1. What is the usual cause of a harmful increase in the nutrients in a freshwater lake?
    10·1 answer
  • Osmosis, or the movement of water into and out of a cell, is directly related to the concentration gradient on both sides of the
    7·2 answers
  • What is a pluton?????
    7·2 answers
  • What energy source contributes most to climate change
    13·2 answers
  • Tylee is shy but wants to try out for a skit in the community talent show. She thinks that performing will be a way to pull
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!