Answer: Such constant change has characterized Earth since its beginning some 4.5 billion years ago. From the outset, heat and gravity shaped the evolution of the planet. These forces were gradually joined by the global effects of the emergence of life.
Explanation:
Answer:
components in blood that affect viscosity is formed elements, plasma proteins, WBCs, RBCs and platelets. ... When there is an increase in viscosity, it decreases the blood flow rate, 3. Describe the graph of flow versus viscosity.
The spinal cavity ,is enclosed within the vertebral foramen of the vertebrae
1. Testosterone
2. Penis
3. Testes
4. Semen
5. Scrotum
6. Vas Defrens
7. Seminal Vesicle
Answer:
The correct option is a. lacks organelles beyond ribosomes.
Explanation:
All cells of higher organisms are bounded by a cell membrane (also called plasma membrane or plasmalema) and contain cytoplasm that surrounds one or more nuclei. Within the cytoplasm there are structures known as organelles, which are specialized in carrying out the metabolic processes of the cell, these cells are called eukaryotes. The prokaryotes are smaller, lack a differentiated nucleus and organelles. The prokaryotic cells are not internally divided by membranous walls, but consist of a single space.
Both prokaryotic and eukaryotic cells contain ribosomes. Ribosomes are organelles not delimited by membranes, these organelles are important since a cell makes all its proteins in its ribosomes.
