Sponges are organisms that are members of phylum prolifera, they are simple multicellular animals without a mouth, muscles, heart or brain.Sponges's tissues contains collar cells and amoebaocytes in its tissues. They feed by drawing water in through their pores and filter out food particles. Sponge larvae are more animal-like than adult sponges because they are free-swimming organisms.
Observation, interpretation, and explanation are important to the study of science because if the following steps are not carefully taken the outcome could change. Critical thinking generally refers to higher order thinking that questions assumptions. Critical thinking is "thinking about thinking". It is a way of deciding if a claim is true, false, or sometimes true and sometimes false, or partly true and partly false. With out these things science wouldn't be able to advance itself
In physics, a contact force is a force that acts at the point of contact between two objects, in contrast to body forces. Contact forces are described by Newton's laws of motion, as with all other forces in dynamics. Contact force is the force in which an object comes in contact with another object.
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