Cladograms use lines that branch of into different directions ending at a clade, which is a group of organisms that share the same last common ancestor.
Cladograms are useful for:
1. Showing the evolutionary patterns in the organisms, and how and why did they occurred.
2. For better and easier classification of the organisms, as well as tracing their ancestors.
Answer:
<h2>Digestion in sponges is intracellular.
</h2><h2>Cnidarians carry out extracellular digestion
.</h2>
Explanation:
digestive process in cnidarians differ from sponges
1. i) sponges have intracellular digestive system.
ii). They feed on planktons by filtering water.
iii). Digestion takes place completely in choanocyte cells.
Cnidarians
1. i) Cnidarians are predators and feed on small fish, krill and many small species.
ii )All cnidarians are carnivores and have very simple body structures adapted as predators.
iii) Cnidarians carry out extracellular digestion. Enzymes break out the food into small particles. Cnidarians have an incomplete digestive system and have only one opening.
Answer:
major event of anaphase is the sister chromatids moving to opposite poles of cells due to action of the condensing spindle fibres.
Explanation:
the chromatids only start separating when the pressure is sufficient to split the centromere.
