The phylogenetic tree of organisms within the animal kingdom include characteristics below:
- Ancestral protists
- Tissues
- body symmetry
- Germ layers
- Body cavity
- Porifera
- Platyhelminthes
- Nematoda
- Annelida
- Mollusca
- Arthropoa
- Echinodermata
- Chordata
<h3>What is phylogenetic tree?</h3>
A phylogenetic tree simply refers to a branching diagram or a tree showing the evolutionary relationships among various biological species of both plants and animals based on their similarities and differences; either genetically or physically
Generally, animals; be it vertebrates or invertebrates has the few characteristics below:
- All animals are multicellular organisms
- Animals are also heterotrophic, meaning; they depend on other organisms for food or they obtain their energy by consuming energy-releasing food substances.
- Animals typically reproduce sexually.
- All animals are also made up of cells that do not have cell walls.
In conclusion, the phylogenetic tree of organisms within the animal kingdom include all characteristics mentioned above
Learn more about animal diversity:
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Answer:
The correct answer is - Histones are positively charged.
Explanation:
Histone is an octamer that is made up of four proteins and each protein has 2 copies. These proteins are H2A, H2B, H3, and H4. Histone proteins are mainly made up of positively charged amino acids like arginine and lysine which gives histone proteins an overall positive charge.
This positive charge of histone plays important role in the binding of DNA around it because phosphate group present in the DNA makes DNA negatively charged molecules that are attracted by positively charged histone protein by electrostatic interaction.
This interaction results in the wrapping of DNA around the histone proteins and then compaction of DNA into chromatin. Therefore the right answer is- histones are positively charged.
<span>The question is 'organisms interact with each other and their environment in different ways. What is an organism's niche. A particular organism ecological niche is defined as that organisms roles in its particular environment. It covers all the ways in which the organism affect its physical environment and the other organisms that are cohabiting the environment with it, that is, the function of the organism in its environment and its interrelationships with all the biotic and abiotic factors present in its environment.</span>
D. Phosphorus. Hope this helped and that it was right :p
