State the components of the internal environment and explain how materials are exchanged into and out of the cell
What will be an ideal response?
Internal environment consists of the extracellular fluid (ECF), which is composed of two distinct parts: the interstitial fluid that directly surrounds the cell, and the plasma, the fluid portion of the blood. Materials are exchanged between the plasma and interstitial fluid, and between the interstitial fluid and the intracellular fluid (ICF).
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Interaction between the ________ causes a waving or bending that results in the stiffening of microvilli and the cytoskeleton to which they are anchored.
Fill in the blank(s) with the appropriate word(s).
An animal that urinates on objects to mark territory exhibits the behavior known as:
A) constitution B) spraying C) debarking D) steatitis
cretinism is hypothyroidism in adults
a. true b. false
Which of the following lists the stages or structures of prenatal development in the correct order?
A. Zygote, cleavage, morula, blastocyst, embryo, fetus B. Zygote, morula, blastocyst, cleavage, embryo, fetus C. Zygote, embryo, morula, blastocyst, cleavage, fetus D. Embryo, zygote, blastocyst, cleavage, morula, fetus E. Cleavage, zygote, morula, blastocyst, embryo, fetus