Answer: What is expected to happen is that the secondary immune system acts immediately against the virus.
Explanation:
When a virus first enters our body, in order to defend itself, the body must first recognize what the antigen is in order to fight it through <u>antibodies</u>. Once it does it will keep a memory of it that it can use if this virus enters the body again. <u>This will be done through the secondary immune system</u>.
As the body already recognizes the antigen, it knows how to fight it immediately, generating a thousand times the amount of antibodies generated the first time.
Thanks to its memory cells, the virus will remain much less time in the body.
Answer: nucleotides and monosaccharides are both monomers of macromolecules (nucleic acids and carbohydrates)
Explanation:
Answer:
C
Explanation:
Most animals can't see orange, and this makes the tiger almost invisible. This is also why hunters wear orange.
Answer:
- The lac operon can be activated by the binding of allolactose to the repressor protein, releasing it from DNA and thereby allowing for transcription to occur.
- In response to low glucose levels, cAMP is upregulated; the binding of cAMP to the cAMP receptor protein triggers the activation of the operon.
Explanation:
Lactose operon or lac operon (includes lacZ, lacY and lacA genes) is found in some bacteria and the products of its genes are involved in lactose metabolism. So, this operon is active (genes are transcribed) when lactose is present and glucose is absent (or at low level). The operon is regulated by the lac repressor which acts as a lactose sensor and catabolite activator protein (CAP) which acts as a glucose sensor.
When there is lactose (in the form of allolactose) lac repressor detects it and stops being repressor. This enables transcription.
CAP detects glucose (via cAMP) and activates transcription when glucose levels are low.
Sorry If I misspell or have horrible grammar
Explanation :
Rainforests have a lot of plants and animals because ;
Climate : The rainforest(s) are in very tropical regions , meaning the recieve a lot of sunlight . The energy is stored in plant vegetation . Animals are attracted to the food and eat it .
Edit : Also I tried to put the answer I found into my own words , I noticed the 1st person copied and pasted an answer which is copying
