The structure labeled with "a" is called (2 points)

Anterior Ventral Horn

Explanation:

The structure labeled "A" is called Anterior Ventral Horn and is a structure that is part of the spinal cord. This structure contains the motor neuron cell bodies that innervate skeletal muscles. These neurons are referred to as alpha, adelta or low motor neurons, and are the only way the nervous system can control inter-muscular muscle movements either voluntarily or involuntarily.

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.