Answer:
the answer is respiration
Answer:
It is a definition of demand characteristics.
Explanation:
The term demand characteristics originated in Martin Orne's work as the test group understood what was the investigation and acted consequently. Thus, the way an experiment is built may lead participants to answer unconsciously to what they believe the researcher wants. When the participants form a notion of where the experiment is heading, they probably behave accordingly. One way to avoid the effects of demand characteristics on research is to use deception and guide participant to act more naturally as they cannot guess the purpose of the experiment.
Answer:
tRNA and mRNA can leave the nucleus.
Explanation:
tRNA, when mature and correct, can leave the nucleus and enter the cytoplasm. mRNA can leave the nucleus through pores in the nuclear membrane. However, DNA cannot leave the nucleus, it has to be transcribed into RNA.
Answer:
Immune system of the body helps in fighting with the infectious agents that are foreign for the body. So the immune system protects us from infection.
When any foreign substance(antigen) comes in the body B-lymphocyte recognize it by binding the antigen through its receptor. After recognizing the antigen, B cell divides into antibody-producing plasma cell and memory cell.
Antibodies produced by plasma cells help in destroying the antigen by getting the antigen recognized by phagocytic cells or by complement activation.
B cells are antigen-presenting cell which present antigen to T cell and then T cell activates and produce chemicals that kill the antigen. Therefore the immune system has many immune cells that activate when an antigen comes in the body. This is how the immune system functions.
