Yong would have to know physical science because your messaging the human body which is physically speaking is touch.
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.
The fluid in my ear is responsible for balance detection
Answer:
b. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it
Explanation:
Both positive and negative feedback have the same components:
1. Stimuli - external or internal
2. Sensors - detect the stimuli
3. Control center - processes the information (CNS)
4. Effectors - activated by control center
Negative feedback loops act to oppose the stimulus.
Unlike negative feedback loops, positive feedback loops amplify the starting signal.
Answer:
11. Something killed 90 percent of the planet's species approximately 250 million years ago, near the end of the Permian epoch. In the seas, just about 5% of animal species survived.
12. water bears, also known as tardigrades, are tough organisms that can withstand high temperatures.
13. DNA is found in every cell of every living creature, practically every cell in a multicellular organism has all of the DNA it needs.
14. Titan features a low-temperature version of Earth's water cycle, with liquid on the surface that evaporates, creates clouds, and then condenses to fall as rain—but the liquid is a mix of methane, ethane, and a trace of other hydrocarbons on Titan.
15. The Earth could not even support life at first. The atmosphere was devoid of oxygen, and the Earth's surface was scorching hot. The Earth gradually transformed over millions of years, allowing plants and animals to begin to grow. The Earth was then further altered by living organisms.