Answer (option c):
Placer mining involves <u>dredging sediments from the water bottom</u> to extract minerals.
it produces a fluid called lymph
the lymph node is part of the adaptive immune system.
Genetics is the field of biology that deals with the study of what is transmitted in successive generations through genes.
<h3>What is
genetics?</h3>
It is the field of biology that studies how physical characteristics and traits are passed from one generation to another.
Therefore, it analyzes the stability and variation and how the inheritance of biology is transmitted from one individual to another, its main objective is to explain the way in which traits and various qualities are passed from parents to their descendants.
Therefore, we can conclude that genetics is the field of biology that deals with the study of what is transmitted in successive generations through genes.
Learn more about genetics here: brainly.com/question/9703093
It is used for cell functions or transformed to heat energy
Answer:
in the wall of the right atrium of the heart.
Explanation:
The sinoatrial node (SA), consisting of spindle-shaped cells, initiates the electrical activity of the heart. From its location in the right atrium in proximity to the superior vena cava, the electrical activity spreads to the atria, whose cells are larger than those of the SA.