Most insects have small holes in the exoskeleton called spiracles, which open and close to regulate the air flow. The holes lead to the trachea. The correct answer is C, spiracles.
The ball will hit with a force of 56 newtons per second
Some bones develop within sheet like layers of connective tissue which are called intramembranous bones whereas the bones that are develop from a model of hyaline cartilage and are called endochondral bones.
<h3>Formation of
intramembranous bones and endochondral bones</h3>
Endochondral ossification involves the replacement of hyaline cartilage with bony tissue which leads to the formation of endochondral bones whereas, intramembranous ossification refers to the replacement of sheet-like connective tissue membranes with bony tissue which results in the formation of intramembranous bones.
Learn more about bones here: brainly.com/question/412179
Answer:
A. They have identical DNA in all of their cells.
Explanation:
Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. Identical twins share all of their genes and are always of the same sex. In contrast, fraternal, or dizygotic, twins result from the fertilization of two separate eggs during the same pregnancy.
Answer:
<h2><u><em>
Evolution</em></u></h2>
Explanation:
In order for species to survive over generations, they will have to adapt. Adaptation is a form of evolution.
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