Out of the following given choices;
A. theory that fish and mammals have a common ancestry
B. theory that the first organisms on Earth were heterotrophs
C. close relationship between fish and mammalian reproductive patterns
D. close relationship between humans and annelids
The answer is A. Many embryos of the kingdom Animalia share similarities in the early stages depicting that they share a common ancestor. The gill slits is one example. They diverge in later stages to become Pharyngeal in the human embryo, while they differentiate into gills in fish.
Proteins are <u>synthesized</u> in living organisms by cellular organelles called: ribosomes.
<h3>What is ribosome?</h3>
A ribosome can be defined as a cellular organelle that is typically saddled with the responsibility of synthetizing or building up of proteins.
Also, ribosomes are made up of ribonucleic acid (RNA), which are generally found in the cells of living organisms such as animals, humans, etc.
In conclusion, proteins are <u>synthesized</u> in living organisms by cellular organelles called ribosomes.
Read more on ribosomes here: brainly.com/question/8773679
Answer:
A
Explanation:
states that each rock layer is older than the one above it. So, the relative age of the rock or fossil in the rock or fossil in the rock is older if it is farther down in the rock layers.
Answer:
The Digestive System
Explanation:
Organs such as the stomach, esophagus, and intestines work together to break down food and nutrients.
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