Answer:
It was discovered 1766
Explanation:
Discoverers: Henry Cavendish, Antoine Lavoisier
Atomic mass:1.0084u
Atomic number:1
All of the following are threats to biodiversity except
species preservation. Biodiversity refers to the different variety of life that
inhabit an ecosystem. Species preservation is the act or process of preserving organisms
that live in an ecosystem. In a way it is preventing the further destruction or
decay of a particular species that are dwindling in numbers. Human activities
(e.g. hunting, habitat destruction) are the biggest threat to biodiversity, but
the irony of it all is that humans are also responsible for the protection and
preservation of these species.
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It's Gregor Mendel is noted for his contributions to genetics and it's also the Genotype is the expression of a trait
besides i have a 100 in biology
Answer:
Answered below
Explanation:
Birds and mammals have a double circulatory system and a four-chambered heart which separates the oxygenated blood and the deoxygenated blood from each other in the heart. This system of circulation is necessary to serve the high energy needs of the mammals and birds.
In this system, deoxygenated blood from the body passes through the superior and inferior Vena Cava into the right atrium. From the right atrium it flows into the right ventricle. From the right ventricle, it is then pumped into the pulmonary artery to be carried to the lungs. In the lungs, the deoxygenated blood is oxygenated and returned to the heart through the pulmonary veins.
Oxygenated blood enters the left atrium from the lungs through the pulmonary veins. It then moves into the left ventricle. In the left ventricle, it is then pumped into the aorta. The aorta is a large vessel that runs the length of the vertebral column, branching off to be circulate blood in the body system.
