Answer:
Pyramid is a good representation of energy flow in an ecosystem because the shape of pyramid is wider at the bottom and pointed at the top. In the ecosystem, population of plants are maximum so it is placed at the bottom of the pyramid while the organisms such as tertiary consumers are placed at the top of the pyramid due to low in population. So pyramid is a good representation.
It depends on the weight of the sediments.
The neuron, or nerve cell, is the basic functional unit of the nervous system
Answer:
This organism will be placed in kingdom Animalia, phylum Arthropoda and class Araneae because it has same characteristics to spider and spider also belongs to class Araneae.
Explanation:
Organisms which belongs to class Araneae is known as Arachnids. These organisms are invertebrates and have two body parts i. e. cephalothorax and the abdomen. They have eight legs.