Answer:
matter
Explanation:
"In thermodynamics, a closed system can exchange energy (as heat or work) but not matter, with its surroundings"
Answer:
A
Explanation:
recombinant DNA ,the DNA derived from more than 2 or more DNA
Answer:
Toxicity can be measured by the effect the substance has on an organism, a tissue or a cell. We know that individuals will respond differently to the same dose of a substance because of a number of factors including their gender, age and body weight. Therefore a population-level measure of toxicity is often used
Explanation:
Answer:
C. Enhancer
Explanation:
The enhancer is a regulatory DNA sequence that might be located thousands of nucleotide away from the transcription start site of a gene.