Answer is B. Porifera
Members of the phylum porifera includes animals which lack tissues. These animals are also called sponges. These are the simplest multicellular animals. Even though they are multicellular, they do not have any tissues or organs. They have cellular level of body organization. Sponges are aquatic animals and water plays a major role in the feeding, exchange of gases and as well as excretion.
Answer:
Spinal cord
Explanation:
The PNS consists of the nerves and ganglia outside the brain and spinal cord.
Moving from the shade into the sun, removing a sweater, curling up in a ball all are the examples of behavioral mechanisms for modifying heat loss via conduction and radiation.
What is heat loss?
- Heat transfer from one material to another can occur intentionally or accidentally.
- Conduction, convection, and radiation are possible mechanisms for this.
- When a component comes in direct touch with another component, whether it is insulated or not, conduction frequently happens.
- Convection happens when an air barrier surrounds a pipe, electric heater, or other component.
- When there is no touch and heat travels in waves, it is called radiation.
Here are some typical heat loss regions that designers of heating equipment should take into consideration:
- uncovered surfaces
- Insulated surfaces that are horizontal or vertical
- Water is present.
- surfaces with paraffin or oil
- Wind speed has an impact.
Hence, all are the examples of behavioral mechanisms.
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Answer:
The answer would be Diffusion because it does not require the use of energy
A) Light dependent and light independent/Dark reaction
