Answer:
asexual reproduction
Explanation:
because every single organism in the species is the exact same genetically, there is no variation between them.
Human dna was completely mapped
Answer:
Plants occur in dump and shaded areas
They lack vegetative structure
The plant body is prostrate or erect
They lack vascular system
D) is the correct answer bc the question states that all water on earth is apart of the water cycle, if the water was on a different planet then we'd have a problem lol.
Answer:
1. Myelin sheath
2. Nodes of Ranvier
3. Speed up
Explanation:
A neuron is the fundamental unit of the nervous system and structured into the dendrites, the axons and the cell body.
1. The axons of the neuron are covered by a layer composed of the fatty acids and the proteins that is the constituents of the plasma membrane. This layer is known as the myelin sheath. The myelin sheath provides insulation and increases the speed of transmission.
2. Nodes of Ranvier: The myelin sheath around axons does not form continuous but have discontinuous structures due to the gaps in the sheath. These gaps are known as the Nodes of Ranvier.
3. The nodes of Ranvier increase the speed of the electrical impulse transmission through the neuron.
