Which of the following is a confirmatory test used to reveal the presence of blood with high accuracy?

Kastle-Meyer test
ABAcard HemaTrace test
Hemoglobin test
Anti-sera test

The answer is Kastle-Meyer test..

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem