Groups of cells that work together to provide a specific function are called

A. tissues.

B. organs.

C. organelles.

D. tumors.

E. organ systems.


A. tissues.

Biology & Microbiology

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At the microevolutionary level, natural selection is based on genetic differences that give an individual a selective advantage

Indicate whether the statement is true or false

Biology & Microbiology

Select the formula below that correctly represents the behavior of CO2 in the blood.

A. CO2 + H2O ? H2CO3 + CO B. CO2 + H+ ? HCO3+ ? H2O + H2CO3 C. CO2 + HCO3- ? H+ + H2O + H2CO3 D. CO2 + H2O ? H2CO3 ? HCO3- + H+ E. CO2 + H2CO3 + O2 ? H2O + CO2 + H2CO3

Biology & Microbiology

Which of the following methods uses gene cloning and genomic libraries?

A. Whole genome sequencing D. More than one of these B. Map-based sequencing E. None of these C. DNA base sequencing

Biology & Microbiology

The Root vegetables like potatoes, carrots, and beets that we eat store sugars made by photosynthesis, which can later be used for plant growth.

a. true b. false

Biology & Microbiology