Biology, 16.04.2021 17:50, jellybooooo7446
A student receives a picture of a savanna ecosystem with an elephant, a tree, and grass shown.
How are gases exchanged among the three organisms present in the ecosystem?
The grass and the tree produce carbon dioxide for use by the elephant, and the elephant exhales oxygen for use by the grass and the tree.
O The grass and the tree produce oxygen for use by the elephant, and the elephant exhales nitrogen for use by the grass and the tree.
The grass and the tree produce nitrogen for use by the elephant, and the elephant exhales carbon dioxide for use by the grass and the tree
The grass and the tree produce oxygen for use by the elephant, and the elephant exhales carbon dioxide for use by the grass and the tree.
Answers: 1
Biology, 21.06.2019 20:00, noahmartinez3636
Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic. b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy. c. all bacterial enzymes are harmful to humans and the environment. d. microbes create pollutants and toxins that harm the environment.
Answers: 2
Biology, 22.06.2019 06:00, maylindominguez
Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
Answers: 1
Biology, 22.06.2019 10:30, jadeossowski3590
Which of these is a provisioning service people get from the ocean
Answers: 1
A student receives a picture of a savanna ecosystem with an elephant, a tree, and grass shown.
How...