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igor_vitrenko [27]
4 years ago
14

Do fish have an open or closed circulatory system? What does this mean?​

Biology
1 answer:
dedylja [7]4 years ago
7 0

Answer:

They have a closed circulatory system.

Explanation:

In an open circulatory system, blood vessels transport all fluids into a cavity. When the animal moves, the blood inside the cavity moves freely around the body in all directions.

Closed circulatory systems are different to open circulatory systems because blood never leaves the blood vessels. Instead, it is transferred from one blood vessel to another continuously without entering a cavity.

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CAN SOMEONE PLEASE HELP!!!!!!!!!!
kkurt [141]

Answer:

A series if reaction break and rrarrange csrbon bonds to release energy ang carbon dioxide.

6 0
3 years ago
A marine biologist explains that the salmon adapts to its environment through descent with modification. What is "descent with m
gizmo_the_mogwai [7]

<u>Answer</u>: A heritable trait can be changed from one generation to another.

<u>Explanation</u>:

  • The concept of <em>descent with modification</em> was given by Darwin which simply states that the traits are passed on from the parents to the offsprings.
  • The traits that can be passed on are known as <em>heritable traits</em>.
  • These traits are passed on with the help of the genes.
  • So this passing on of traits explains the term <em>descent</em> in this concept. However, there are always chances that these heritable traits can be changed due to environmental factors or due to the process of recombination and thus the term <em>modification</em>.
  • So <em>descent with modification</em> means that a<em> heritable trait is passed from parents to offspring but it can be changed from one generation to another.</em>
5 0
4 years ago
PLZ HELP THIS IS URGENT ILL GIVE 5PTS AND BRAINLIST IF RIGHT!!!
adoni [48]

Answer:

Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells. The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell.

Explanation:

Hope this helped, Have a Great Day!!

5 0
3 years ago
Which phrases describe anaerobic respiration?
Free_Kalibri [48]

Answer:

is an inefficient way to obtain ATP

creates a buildup of lactic acid

does not require oxygen

Explanation:

Anaerobic respiration is the process by which food substances are broken down without presence of oxygen. An intermediate compound, ethanol in plants and lactic acid in animals is produced. The incomplete breakdown of glucose results into production of less energy(ATP) than in the case of aerobic respiration.

7 0
3 years ago
In order to aspirate sample, you would: 1. Press the pushbutton to the second stop 2. Hold the pipetter vertically and immerse t
EastWind [94]

Answer: FALSE

Explanation: THE FIRST STEP IS INCORRECT AND SHOULD BE

1. press the pushbutton to the first positive stop

THE REST OF THE STEPS ARE CORRECT

8 0
3 years ago
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