The Chinese. All other cultures most like did not support astronomy.
Answer:
Gills
Explanation:
In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels. A fish breathes by taking water into its mouth and forcing it out through the gill passages.
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How Do Fish Breathe
Answer:
A = Activator
B = Effector
Explanation:
An activator is a protein which typically binds to a short (50–1500 bp) region of DNA which might be located either upstream (mainly) or downstream of a gene so as to cause increased transcription. This particular region of DNA is known as enhancer and activator is also known as transcription factor. Activator is a trans-acting factor which binds to the cis-acting factor which is enhancer so as to enhance transcriptional expression.
But another protein named as effector may restrict activator from binding to the enhancer leading to a decrease in transcriptional expression by binding to the activator allosterically. Allosteric binding of effector to the activator causes conformational change in activator so it can no longer bind the enhancer.
Answer:
ADA is an enzyme that is used to breakdown the food chain.
Explanation:
ADA is also called adenosine deaminase. It is an enzyme. It is a purine metabolism. ADA is used to needed for the breakdown of the adenosine from the food chain. ADA is found in both small and large form. The enzyme presented in it has polypeptide chain. It is folded in eight strands.
The ADA contain zinc. It is found in deepest site and combined with five form such as 15, 17, 214, 295 and the substrate.
The ADA is is inversible dominates the adenosine. It is considered the key enzyme of the purine metabolism. ADA in human beings work for development and maintenance.
