Answer:
mutualistic
Explanation:
The interaction between two organisms in which both the organism gets benefitted from each other is called a mutualistic relationship. This mutualistic relationship is seen in the concept of endosymbiosis.
According to the endosymbiotic theory chloroplast and mitochondria are evolved by engulfment of different bacteria by ancestral cells. Then these bacterial remained in a mutualistic relationship with each other and the ancestral cell evolved into a eukaryotic cell.
So as mitochondria and chloroplast live with a symbiotic relationship with eukaryotic cells, therefore, it is considered as mutualistic relationship.
Answer:
It probably ended in the mass extinction of terrestrial dinosaurs
There are three major types<span> of blood vessels: the </span>arteries<span>, which carry the blood away from the heart; the </span>capillaries<span>, which enable the actual exchange of water and chemicals between the blood and the tissues; and the </span>veins<span>, which carry blood from the </span>capillaries <span>back toward the heart.</span>
The phylum that is referred by the description above is the ECHINODERMS. The echinoderms are considered as invertebrate organisms found in the ocean, this means that these organisms do not have skeletons. The most prominent feature of the echinoderms are their spikes and spines. Examples are sea stars or starfish and sea urchins.
It's mostly tropical rainforest because the equator is so humid and so it's very muggy and hot there!
