Answer:
false
Explanation:
it helps to breathe as well
Answer:
These structures that protect the sponges from most predators, but not turtles, are spicules.
Explanation:
Sponges <em>skeleton</em> is composed of <em>calcium carbonate and siliceous</em> micro-structures called <u>spicules</u>. Their morphology is so varied that it is used in taxonomy for identification and classification.
There are different kinds of spicules:
- <em>Monoaxonic spicule</em>: needle-shaped, straights or curves
- <em>Tetraxonic spicules:</em> they have four prolongations
- <em>Triaxonic or Hexaxonic spicules</em>
- <em>Poliaxonic spicules </em>
Two terms can be applied to any of these spicules kinds:
- <em>Megaspicules</em>: They are elongated and compose the main architecture of the sponge skeleton
- <em>Microspicules</em>: Variable in shape and size, with ancillary functions
Sponges have few predators thank to the spicule structures and their high toxicity. Many of them are capable of perforating soft tissues and producing urticant substances.
The stem supports the plant and because of the stem the plant is able to grow taller if needed
If a person does not consume the minimum daily requirement of carbohydrates then the body will use stored glycogen and the person will look unhealthy and become weak after some time.
<h3><u>
Importance of carbohydrates</u>
: </h3>
- Like other nutrients, carbohydrates are also very essential for various functions of the body.
- Carbohydrates such as glucose are required for instant energy and day-to-day activities.
- If there is no or less amount of carbohydrate in the body then our body will start converting the glycogen that is stored in the liver into glucose.
- After some time, the person will start to appear unhealthy, thin and weak if there is no minimum daily requirement of carbohydrates is met.
To know more about carbohydrates, refer:
brainly.com/question/19874109?utm_source=android&utm_medium=share&utm_campaign=question
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- Models cannot include all the details of the objects that they represent. For example, maps cannot include all the details of the features of the earth such as mountains, valleys, etc.“Modols help us illustrate the concept and formulate hypothesis. When models are used, the scientists are able to notice patterns and develop and revise representation that become a useful model, which makes their scientific knowledge stronger and helps them understand more about the nature of science. Models are a simplified representation. One of the biggest advantages of the model is, that it allows you to have a look at things which are too small such as atoms or too big such as the solar system.
