How does the section "Many Chemical And Physical Changes Are Happening In Nature" relate to section "Matter Isn't Lost In Photosynthesis"?

⚫️ It supports the claim water is cycled all over the world.

⚫️ It presents a solution to the problem of water undergoing physical changes.

⚫️ It contradicts the statements that water undergoes physical changes.

⚫️ It provides another example of how matter is conserved within ecosystems.
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Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.