Answer: Sphincter muscles
Explanation:
The circular rings of smooth muscles, that can contract to regulate the movement of the smooth muscles that can contract to regulate the movement of food through the gastrointestinal tract are known as sphincter muscles.
These two layers are outer layer and inner layer. The outer layer is longitudinal and the inner layer is circular. They contract rhythmically to squeeze food.
Answer:
A
Explanation:
I know this because I just took the test and got it right.
The statements describe how traits are inherited are:
- Traits are inherited when genes are passed from parents to offspring.
- An offspring can receive different alleles or the same alleles from each parent.
<h3>What are traits?</h3>
Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists.
Recessive traits are expressed only if both the connected alleles are recessive.
Polygenetic traits are basically the traits that are controlled by two or more genes.
Thus, option "3 and 5" is correct.
To learn more about traits click here:
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Answer:
B) base
Step-by-step explanation:
Acids have a higher concentration of hydrogen ions. Bases have a higher concentration of hydroxide ions.
