Answer: Water is drawn in through small openings on a sponge's body called OSTIA.
The supportive skeleton of a sponge contains SPICULES which provide protection from predators.
Explanation:
Sponges refer to any of the aquatic animals of the phyllum porifera which is normally characterized with porous structures and has horn-like calcareous internal framework.
Sponges usually have multiple pores called "OSTIA" on their bodies that allow water to enter them.
Most sponges are sessile and because of this, they can't run away from predators. They usually have sharp "SPICULES" which are part of their skeleton that provide them some certain degree of defense. Apart from this, they also produce toxins which poisons predators that attempt to consume them
Explanation:
The energy emitted by long wavelength waves are smaller to those emitted by short wave lengths.
The energy of a wave is a function of its wavelength and frequency.
- The wavelength of a wave is the distance between its crest.
- Frequency is the amount of waves that passes through a point in a period of time.
- Energy of a wave is directly proportional to frequency and inversely proportional to wavelength.
- The higher the frequency of a wave, the more the energy.
- Waves with a high wavelength carries very little energy.
- Long wavelength radiations have a long wavelength as the name implies. They carry very little energy and have low frequency. Examples are infra-red.
- Short wavelength radiations have short wavelength. They carry very high amount of energy and have very high frequency. Examples are x-rays and gamma rays.
learn more:
Electromagnetic radiation brainly.com/question/6818046
#learnwithBrainly
Our volitional centre, the motor cortex, is where we impose specific facial expressions in order to convey the desired message or because the situation requires it.
<h3>What is the purpose of the motor cortex?</h3>
- The motor cortex's main job is to provide signals that control how the body moves.
- It is anterior to the central sulcus and a portion of the frontal lobe.
- The primary motor cortex, premotor cortex, and supplementary motor area make up this region.
<h3>What kinds of motions does the motor cortex regulate?</h3>
- The motor cortex generates signals that are particular to movements and sends them to the muscles via spinal cord circuits and motor neurons to regulate motor behaviour.
- For the execution of movements to be precise, coordinated muscle activation patterns are required.
learn more about motor cortex here
brainly.com/question/13802881
#SPJ4
You can't bend a ruler and it does not measure what is inside of something
