The answer is F. Interest Rate
Answer:
pericardium
Explanation:
A double-walled membrane, the pericardium, separates the right and left chambers, preventing oxygen-rich blood from mixing up with the one without oxygen. So, the heart functions go smoothly. Deoxygenated blood enters the right atrium.
<span>Skeletal muscle is a muscle tissue used when running a
marathon or blinking the eyes and formation of skeletal muscle comes from action
and myosin muscle fibers. Smooth muscle are found in the wall of internal
organs such as intestine and stomach. Contraction of the smooth muscle enable
the organs to performs their function while cardiac muscle is commonly found in
the wall of the heart. The contraction of the cardiac muscle enable the heart
to beats and pumps blood.</span>
Biotic factors are those that are living in an ecosystem, such as plants and animals, while abiotic factors are those that are not, such as rocks, temperature, water, sunlight, soil etc.
C is correct for number 2 because broadleaf trees are a biotic factor, while precipitation, or rainwater, is abiotic.
A is incorrect because both are biotic factors, since both are living
B is incorrect because both are abiotic factors, since both are nonliving
D is incorrect because both are biotic factors, since both are living
Answer:
B. It refers to the idea the prehistoric oceans combined with lightning formed the building blocks of life.
Explanation:
- One of the widely accepted theory of evolution of life is the theory of Chemical evolution.
- According to this theory, the conditions of prebiotic earth were favourable to a sort of continuing chemical evolution. that gave rise to a special class of organic molecule.
- Organic molecules must have evolved before the origin of life from primordial atmosphere which was anoxic and chemically reducing.
- Subsequent to the abiotic synthesis of organic matter, seas were converted into a hot dilute pebiotic soup.
- This theory was devised by John Haldane and Alexander Oparin.
- They proposed that on addition of energy to the gases of primitive atmosphere building blocks of life will be created.
