Why is carbon the key element in forming structural componets of cells

Which of the following is true about a polar amino acid and cellulose? A. Both are polysaccharides. B. Both contain nitrogen. C. Both are hydrophobic. D. Both contain hydrogen atoms.

Dna's long chains of paired nucleotides are made up of

Which of the following statements best proves that the law of conservation of mass is obeyed during photosynthesis? A: The starting total number of oxygen atoms in carbon dioxide is equal to the ending total number of oxygen atoms in glucose.

Which of the following statements regarding Entner-Doudoroff pathway is true? a. it involves glycolysis b. NADH is generated c. ATP is generated d. it involves the pentose phosphate pathway e. NADH and ATP are generated

What does the outer ear consist of? select all that apply! >>Chochlea, Lateral canal, Auditory canal, Eustachian tube, Auricle

Which m50 gas mask accessory should be used if storing the mask for more than 30 days?

The main function of the inflammatory response is 1. to initiate the production of antibodies. 2. remove contaminating microorganisms 3. initiate repair of damaged tissues. 4. initiate T-cell-mediated immune responses.

The functions of the nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air. T/F

Which of these groups of animals are endargered a. mice b. killer whales c. dinosaurs d. sea turtles

Levels of organization of the biosphere