5.5 biology test

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what kind of cells are partially undifferentiated cells located among the specialized cells of many organs and tissues?

adult stem

what develops from the middle layer of a vertebrate and embryo?

bones, muscles, and kidneys

which is not a characteristic of stem cells?

can develop into all cell types after they become specialized

stem cell

cell that can divide for long periods of time while remaining undifferentiated

what is arranged from smallest to largest?

cell, tissue, organ, organ system

what tissues transport sugars, water, and minerals to and from other parts?

conductive tissues

what forms the inner layer?

embryo, lungs, internal organs, pancreas, and digestive system lining

tissue

group of cells that work together to perform a specific function or related function

organ

group of tissues that work together to perform a specific function or related functions

what happens to organs that carry out similar functions?

grouped into organ systems

what closes stomata when the plants water intake can not keep up with its water loss?

guard cells

what determines how a cell in an embryo will differentiate?

it's location within the embryo

what other type of cell differentiate in the outer layer?

nerve cells

organ systems

organs that carry out similar functions

cell differentiation

process by which unspecialized cells develop into their mature forms and functions

in animals what kind of division does the egg undergo?

rapid divisions after it is fertilized

what are controlled by special cells called guard cells

stomata

what works together to perform a specific function or related functions are called organs?

tissues

what term describes the kind of stem cells that can grow into all cell types in the body?

totipotent

how many types of cell does a human have?

200


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