Answer:
2. blood vessels under the skin expand
Explanation:
i just took that quiz and i got it right :)
It makes a longitudinal wave because it stretches and compresses while it slithers forward
Answer:
Hello There!!
Explanation:
It is a specialised cellular part for example nucleus and mitochondria.
hope this helps,have a great day!!
~Pinky~
Answer:
antigen-MHC protein complexes
Explanation:
Helper T-cells recognise antigens that are complexed with MHC proteins and interact with target cells. Antibodies can be produced against a single antigen in a variety of ways. Toxic shock syndrome is a relatively mild condition that resembles other minor allergy responses. Antigen-presenting cells break down superantigens.
(Hope this helps can i pls have brainlist (crown)☺️)
It gets its nourishment from its mother. The human embryo is connected to its mother by a placenta through which materials are passed.
