Which of these is the main organ of the nervous system?

a. lungs

b. skin

c. heart

d. brain user: which component of an ecosystem is abiotic?

a. decomposer

b. gereralist

c. sunlight

d. autotroph

Which are considered emergent properties of life? electrons in a carbon atom reflexes release of energy from glucose during metabolism three-dimensional structure of different dna sequences three-dimensional structure of different protein sequences?

Cytosine is which DNA based paired and bond to cytosine?

What are three uses that change the land? A mining, development, and conservation B agriculture, mining, and development C conservation, agriculture, and mining D development, conservation, and agriculture

What is the name for a flat, low-lying piece of land next to the ocean? A:interior plain B:coastal plain C:mountain range D:plateau

Where in the cells of the leaf do you find air spaces? what is the function of stoma?

What is the function of the pigment molecules in a light-harvesting complex in the thylakoid membranes?

How do natural actions such as weathering, erosion, and soil formation affect Earth's surface?

In which species of animal does sebum eventually become lanolin?

What are some examples and non examples of chemical bonding?

Match the staining techniques with their purpose. A Negative stain such as India ink or Congo red. B The Gram stain C The Ziehl-Neelsen Acid-fast stain D Simple stain with a basic dye E The Schaeffer-Fulton Endospore stain Stain microbes a bright