Answer:
Basic characteristics of Sponges:
Sponges belong to phylum porifera. They are simple multi-cellular aquatic animals. They have pores in their body thats why they look like sponge we use in kitchen. These pores are known as ostia. The body cavity is known as spongocoel, which open to out side through large pore known as osculum. Their body is composed of two layers, choanocyte and pinacocyte. Choanocytes are flagellated cells having spikes which help in movement of water into body and aid in capturing of food particles. The skeleton is made up of calcium carbonate or silica. A jelly like substance called as mesoglea is present between pinacocyte and choanoderm.
<span>General characteristics of Archeocyathans:
</span> The term archeocyathans is a Greek word for "ancient cup". They have a single common ancestor and became one of the planet first reef animals. S<span>pecies of archeocyathans is divided into two classes, six orders, 12 suborders, 120 families and nearly 300 genera. They are associated with carbonate sedimentation.They generally lived in shallow water with photic zone. Their fossils often co-occured with fossils of cyanobacteria. </span><span>These are marine organisms whose fossils record dated back to late Precambrian and early Cambrian period. They are most closely resemble to calcareous sponges. Their structure s are conical or tubular in shape and superficially resembles horn reefs. They have world wide distribution and found in Australia, Antartica, Spain, Cubec, New york and California,</span>
<span>The nurse should educate the client about LDL and HDL. LDL is an unhealthy cholesterol that should be below 100 mg/dl. HDL is a healthy cholesterol that should be between 40-60 mg/dl. The nurse should also inform the client of dietary options to improve their cholesterol levels, such as high fiber foods and citrus fruits.</span>
Answer:
DNA replication
Explanation:
During this process DNA is replicated after its strands are separated by Helicase an enzyme. DNA polymerase then fixes okazaki fragments in the fork and ligase sticks them together to create copies of DNA
Domains include Kingdoms and all other taxa.
Answer: d. reverted to washing the coins instead, in accordance with its natural approach to food.
Explanation:
Timulus discrimination is the tendency to lack a conditioned response to a new stimulus that is similar to the original conditioned stimulus. A higher order conditioning occurs when a neutral stimulus comes to act as a conditioned stimulus when combined with another stimulus that already evokes a conditioned response.
