The phylum Echinodermata , which contains about 6000 species, gets its name from the Greek, literally meaning "spiny skin." Many echinoderms actually do have "spiny" skin, but others do not. This phylum exists exclusively in the sea, and cannot be found on land or in fresh water. All echinoderms have one thing in common: radial symmetry. This means that the creatures have appendages (or body construction) which point outward from the center of the body like the spokes on a bicycle wheel. Furthermore, these appendages usually occur in multiples of five, although there are a few exceptions. There are several well known members of this group, like sea stars and sea urchins. The radial symmetry is obvious in these creatures.
Answer:
how are we supposed to know how many we read today?
Explanation:
because not many people count how many words they have each week.
<h2>False </h2>
Explanation:
Alimentary canal components include mouth, pharynx, esophagus, stomach, small intestine and large intestine whereas liver is a component of the accessory digestive system
- The liver is a large organ that is located in the upper right portion of abdomen, beneath the diaphragm
- The liver has two large sections, called the right and the left lobes and the gallbladder sits under the liver, along with parts of the pancreas and intestines
- The liver and these organs work together to digest, absorb, and process food
- The liver's main role is to filter the blood coming from the digestive tract, before passing it to the rest of the body
- The liver also detoxifies chemicals and metabolizes drugs
- The liver secretes bile that ends up back in the intestines and also makes proteins important for blood clotting and other functions
Answer:
Cell replication occurs in the nucleus of the cell
Explanation: