Answer:
Stimulation of thoracic or lumbar spinal regions; impulse reaches chain ganglion; acetylcholine release
Explanation:
Answer:
A.
Explanation:
when given that a species is <em>invasive</em> you can read through the answers and determine which description sounds invasive
Answer: The genotype of the pea plant is Tt. T is the dorminant allele and t is recessive.
Tall is the phenotype.
Explanation:
Genotype is a genes of an individual which show the phenotype or the traits.
From the above question, the pea plant have genes of T tall and t for dwarf,because T is dorminant , it is expressed over recessive.
The genotype of the pea plant is Tt.
Phenotype is the observable or visible characteristics the organism posses which is as a result of the genotype been expressed.
The phenotype is Tall.
Answer:
the answer is c) Test subjects may get bored and want to quit early.
Explanation:
Answer:
1) Macrophages ingest antigen 2) Helper T cells are activated 3) B cells differentiate into plasma cells and memory cells.
Explanation:
Innate immunity and adaptive immunity provide protection against foreign invaders. Innate immunity is non specific and adaptive immunity is specific immune response; includes the production of antibody after a sequence of events.
- When an antigen enters the body the phagocytic cells such as macrophages and dendritic cells ingest the antigen by a process called as phagocytosis. These cells act as antigen presenting cells and present it to T cells.
- T cells are of two types T helper cells and T cytotoxic cell. T cytotoxic cells killed the affected cell such as affected by virus while T helper cells signal for the production antibodies.
- Antibodies are produced from the plasma cells while memory cells act as record keeping. The plasma cells are stimulated by interleukins.
