Alfred Russel Wallace, a biologist, naturalist and anthropologist who studied life in the tropics of Indonesia came up with the same idea of natural selection as Charles Darwin and prompted Darwin to publish his Origin of Specie sooner rather than later. He also studied the geographic distribution of species and as as well he was a social activist who criticized capitalism and warned of damage to the environment from man's economic activities.
<span>Treatment can help but the condition can't be cured</span>
Answer:
In all autotrophic eukaryotes, photosynthesis takes place inside an organelle called a chloroplast. In plants, chloroplast-containing cells exist in the mesophyll. Chloroplasts have a double (inner and outer) membrane.
Explanation:
When infected by a virus, a host cell produce many thousands of identical copies of the original virus. so the answer is B
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Answer:
Pulmonary veins
Explanation:
In the circulatory system, the heart is responsible for for pumping oxygenated blood throughout the body and deoxygenated blood to the heart.
Normally all veins carry deoxygenated blood. However the pulmonary vein is the only vein that carries oxygenated blood.
They carry oxygenated blood from the lungs to the heart.
However the Superior and inferior vena cava are responsible for delivering deoxygenated blood to the heart.
