Collateral blood flow is an enlargement vessel that opens to cause a detour around a blockage. When an artery in the brain is block (TIA) open collateral vessels can allow blood to bypass the blockage to restore blood flow to the affected area. <span />
The answer ur looking for is 600
The true statement for the energy in ecosystems is "Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis". The correct option is A.
<h3>What is ecosystem?</h3>
An ecosystem is a geographical area in which plants, animals, and other organisms, as well as weather and landscape, coexist to form a life bubble.
Ecosystems contain both biotic and abiotic components. Plants, animals, and other organisms are examples of biotic factors.
Energy must be transmitted throughout an ecosystem. The sun is the ultimate source of energy in an ecosystem.
Plants and marine ecosystems make up the majority of the terrestrial ecosystem.
Thus, the correct option is A.
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Answer:
These products help treat and prevent diseases. From the Ebola vaccine to mapping human DNA to agricultural impacts, medial biotechnology is making huge advancements and helping millions of people. Some of the most recent uses of biological tech is work in genetic testing, drug treatments, and artificial tissue growth
Explanation:
The answer is C
Because it would be that the plants would be resistant over time but that is not a choice