Answer:
The form of circulatory shock known as hypovolemic shock is the condition when the plasma level of blood and the body fluids level is decreased rapidly causing insufficient level of oxygen in the blood . the form of shock caused by anaphylaxis any condition in which blood vessels are inadequately filled and blood cannot circulate normally shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea always fatal
Explanation:
- hypovolemic shock is one type of shock among different kinds of shock. it happens when body fluids or blood plasma level starts to decrease rapidly due to some internal or external injury such as bleeding, dehydration, burns, and severe vomiting, diarrhea.
- later causes body fluid loss which decreases the o₂ level in blood.
- this causes lack of o₂ supply in organs which is indeed a fatal condition.
A dichotomous key is defined as a biological tool for identifying unknown organisms to a particular taxonomic level. It is constructed with many levels and series of couplets.
So, by observing the given dichotomous key, it is concluded that the correct answer is Option A- Organism X and Z have at least one observable trait in common in this dichotomous key.
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.
If the expression of a trait requires only one copy of a gene (one allele), that trait is considered dominant. If the expression of a trait requires 2 copies of a gene (2 alleles), that trait is considered recessive. One exception is X-linked disorders.
Although the dolphin lives in the sea, it is not a fish - it's a mammal.
It makes the most sense if you read it aloud.
