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Cali Cruickshank ∙
Organs are made up of several tissues that work together to form structures which carry out the same job.
carries oxygen rich blood from the lungs to the heart
the endocrine and the nervous systems work together to maintain homeostasis
The endocrine system affects cells with certain receptors .
The nervous system can affect only nearby cells
Red blood cells coagulate wounds; white blood cells defend against bacteria.
The immune system must attack the bodys own cells
Which of these organisms is considered the most complex?
Infection cause increased lymphocyte prodution apex :)
One gland causes calcium ions to be released; another gland causes them to be absorbed
pituitary gland controls to produce some hormones
it makes the body create memory cells for future infections
You would be more likely to be harmed by common viruses