What body part has a joint that works in a manner simaler to a door

Why is rna necessary to turn the dna code into protein code?

In humans body temperature is kept fairly constant by automatic responses controlled by which of the following? A. the hypothalamus B. heart rate C. the skin D. the amount of muscle

Blood type in humans is an example of trait that has multiple alleles. The alleles for type A blood and type B blood are codominant, and type O blood is recessive to both type A and type B.

Explain how to mandate a change to coal/natural gas use (home/food)

Marlee and her family were spending time at the beach. Marlee and her brother made this tower with rocks they found on the beach. "Great tower!" said their mom. "The rocks are so smooth! How did that happen?" What did Marlee tell her mother?

A scientist on a field trip discovered a new organism. She examined its cells under a microscope and observed several different structures, including a nucleus, a cell wall, and some chloroplasts.

an experiment was done to determine if the rate at which an egg cooked depended on the temperature of water in which was boiled. what is the independent variable

Describe an organism that uses both asexual and sexual reproduction

Are metamorphic rocks formed through sedimentation?

When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria.