These are known as Hormones. Hormones are chemical messengers that are released in one tissue normally endocrine glands for example, adrenal glands, pituitary glands, and transported in the blood stream to alter the activities of specific cells in other tissues. Hormones serves as messengers, controlling and coordinating activities or processes such as growth, metabolism and fertility in the body.
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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The answer would be "the boiling and freezing points of water."
Answer:
30% Thymine
Explanation:
If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal.
Therefore, that leaves us with 40% between Cytosine and Guanine. Since the ratio between them would be equal, it gives us 20% of Cytosine and 20% of Guanine.
<u>Therefore:</u>
30% of A + 30% of T + 20% of C + 20% of G = 100% DNA
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