A model organism is a species that researchers study to better understand certain biological processes. Mollusks and arthropods
are commonly used as model organisms for studying mechanisms of learning and memory, while sponges and jellyfish are not. Why is this? A.
Mollusks and arthropods can detect stimuli from their environment, while jellyfish and sponges cannot.
B.
Mollusks and arthropods exhibit cephalization, while jellyfish and sponges do not.
C.
Mollusks and arthropods exhibit segmentation, while jellyfish and sponges do not.
D.
Mollusks and arthropods can respond to changes in their environment, while jellyfish and sponges cannot.
The model organisms is a species that researchers use to understand certain biological features. These species are arthropods and Mollusks tend to respond to environment better as compared to the jellyfish and sponges.
Jelly fish and sponges lack nervous system and they do not respond to the stimuli generated by the environment.
The mudflows are very dangerous and they have a great destructive power. They appear after a heavy rainfall on places that are steep. The mudflows are very fast and sudden occurrences, so usually people are caught unprepared. A mudflow is a mixture of water and lot of ground/mud, and all sorts of debris, which also contributes to it to be more dangerous.
a chemical reaction is defined as: changes in one or more substances caused by a reaction, that <u>form new and different substances.</u>Smoke coming out of a car would not really be classified as turning into a new substance, the smoke is still smoke.
