What are trabeculae?

What will be an ideal response?


Answer: Thin plates of bone that offer resistance along lines of stress, support and protect red bone marrow, and make bones lighter for easier movement.

Biology & Microbiology

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Chitin is a polysaccharide with __________ atoms

attached to the glucose backbone. a. magnesium b. phosphorus c. potassium d. nitrogen e. sulfur

Biology & Microbiology

Gravity-sensing mechanisms of many organisms are

based on a. spicules. b. statoliths. c. uric acid crystals. d. sclereids. e. nematocysts.

Biology & Microbiology

Carl Woese is BEST known for discovering that ________

A) eukaryote membrane-bound organelles are descended from endosymbionts B) the oldest fossils are 3.4 billion years old C) prokaryotes comprise two very different branches: Bacteria and Archaea D) energy acting on gases and water vapor will create a "primordial soup" of organic molecules E) the last universal common ancestor (LUCA) did not have DNA-dependent RNA polymerase

Biology & Microbiology

In which of the following situations would Koch's postulates be utilized?

A) determination of the cause of a new emerging disease by scientists studying disease transmission B) development of a new antibiotic in a pharmaceutical lab C) determination of the cause of cancer in a patient D) formulation of a vaccine against a new pathogen in a genetic engineering lab E) whenever the scientific method is used to investigate a microbiological problem

Biology & Microbiology