First, a complete digestive system means that the digestive tract has a beginning or the oral end and the opposite end or the aboral end. This is found in more complex animals starting from roundworms (flatworms have an incomplete digestive tract). A closed circulatory system is found in animals more recent than mollusks. The presence of the coelom makes it more evolved than the flatworms.
Specifically, a small animal with a segmented body, short stiff appendages, and soft skin with the above characteristics point out to the phylum Annelida or annelids.
Answer:
C) maleness results from the minimal presence of one Y chromosome
Explanation:
- From the given question, it can be clearly observed that in males irrespective of whichever syndrome they have a Y chromosome is always present whereas in females Y chromosome is not present.
- Hence, one cal conclude that whenever the Y chromosome is present the individual acquires male characters.
- The Y chromosome whenever present produces the hormones that leads to maleness, and the number of Y chromosomes in males can also be more than one such as in case of XYY Klinefelter syndrome.
I would say the answer would be krill
What are the test options?
According to the Dalton's atomic theory, we can see that there are two atoms that compose the water molecule.
<h3>What is the atomic model?</h3>
The atomic theory states that matter is made up of small particles called atoms. These atoms are capable of independent existence and can take part in chemical reaction.
From the Dalton's atomic theory, we can see that there are two atoms that compose the water molecule. These atoms are hydrogen atom and the oxygen atom.
Learn more about Dalton Model:brainly.com/question/12981565
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