endocrine (slow chemical messages, transported in the blood)
or
nervous (extremley fast electical messages transported via neurones)
Endocrine system
Immune system
endocrine and nervous system
nervous system and endocrine system
endocrine and nervous
The reproductive and endocrine systems both regulate the functions of the body. They rely on communication between cells to send and receive messages.
Cardiovascular system is the circulatory system. Cardiovascular is the heart and blood arteries, capillaries and veins.
Complex organisms cannot perform different functions because of the specialization of their organs and systems. They are designed to carry out very specific tasks and if those tasks are not met the organism cannot function optimally. For example a human has specialized organs for digesting food for respiration for excretion etc. If those organs are not working correctly the rest of the body will be unable to perform the necessary functions. Additionally complex organisms have very intricate systems of communication between cells tissues and organs. Without these communication systems the organism would be unable to properly coordinate its activities. Specialization of organs and systems Intricate systems of communication between cells tissues and organs
1. digestive and circulatory
cells, tissues, organs, organ systems, and organisms
connexons
I. cells II. organs III. organ systems IV. whole organisms
Lymphatic and circulatory system.
The reproductive and endocrine systems both regulate the functions of the body. They rely on communication between cells to send and receive messages.
1. digestive and circulatory
the meaning of cells communication is woking together
Sperm and egg cells are the two cells involved in fertilization of animals and humans.
Cardiovascular system is the circulatory system. Cardiovascular is the heart and blood arteries, capillaries and veins.
Complex organisms cannot perform different functions because of the specialization of their organs and systems. They are designed to carry out very specific tasks and if those tasks are not met the organism cannot function optimally. For example a human has specialized organs for digesting food for respiration for excretion etc. If those organs are not working correctly the rest of the body will be unable to perform the necessary functions. Additionally complex organisms have very intricate systems of communication between cells tissues and organs. Without these communication systems the organism would be unable to properly coordinate its activities. Specialization of organs and systems Intricate systems of communication between cells tissues and organs
Communication between cells.
Can affect operations of both the human brain and the human body
Organ systems are made of organs, which are made of tissues, which are made of cells.