The ________ are muscles of the rib cage that contract and therefore increase the size of the thoracic cavity during inhalation
Fill in the blank(s) with correct word
intercostals
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Which steps compose a plant’s triple response to ethylene?
A. Seedlings bend toward the sun, seedling stem thickens, and the seedling stem bends, forming a hook. B. Seedling stem stops elongating, seedling stem thickens, and the seedling stem bends, forming a hook. C. Seedling stem stops elongating, seedling stem thickens, and the seedling undergoes apoptosis. D. Seedling bends away from the sun, seedling stem thickens, and the seedling stem bends, forming a hook.
The ________ birthrate is expressed as the births per 1000 individuals per unit of time
Fill in the blank(s) with correct word
The zygote, first cell of the next generation, is formed by the union of egg and sperm. it receives: A random number of chromosomes from each parent
Indicate whether the statement is true or false.
During cell reproduction, chromatin fibers coil up into structures called
A) ribosomes. B) lysosomes. C) chromosomes. D) nucleoli.