Biology, 01.08.2019 01:00 tatskuntz1
What does the atomic number of an element represent? a. the number of electron shells in an atom of the element b. the number of nuclei in an atom of the element c. the number of neutrons in an atom of the element d. the number of protons in an atom of the element
Answers: 2
Biology, 22.06.2019 03:00
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
Answers: 2
Biology, 22.06.2019 05:20
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 2
Biology, 22.06.2019 05:30
2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.
Answers: 2
Biology, 22.06.2019 08:00
Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen
Answers: 2
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