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

Biology & Microbiology

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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.

Biology & Microbiology

During cell reproduction, chromatin fibers coil up into structures called

A) ribosomes. B) lysosomes. C) chromosomes. D) nucleoli.

Biology & Microbiology

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.

Biology & Microbiology

The ________ birthrate is expressed as the births per 1000 individuals per unit of time

Fill in the blank(s) with correct word

Biology & Microbiology