Answer:
Fossils show the progression of animals through million of year.
Explanation:
Fossils are the primary evidence of the theory of evolution. You can carbon date them to see how old they are. You collect dna from them and compare them to modern animals. That is how we know the crocodiles haven't evolved much for millions of year.
<span>Location of the estuary, the amount & quality of fresh water flowing in and oceanic storms that have the tendency to push in more salt water are all huge causes of the amount of salt in the water of an estuary to change. </span>
D<span>. </span>Primary succession<span> / </span>secondary succession<span> e. Genetic drift / </span>primary succession<span>. </span>d<span>. ... A predictable series of </span>environmental<span> changes </span>occur<span> in an </span>ecosystem<span> after a ... An </span>area<span> of </span>bare rock<span> outcrop is colonized by small lichens and mosses for ... Weed seeds will </span>not<span> disperse over a large enough </span>area<span> to colonize a prairie. a.</span>
Answer:
silica
Explanation:
Diatoms are microscopic organisms. they have shell that is made from organic compounds and silica.Diatoms contain silica in their cell walls. This material is used industrially in the production of toothpastes, silver polishes, and swimming pool filters. Silica is used to remove stains and debris.
Answer:
Yet you can turn up the magnification for an even closer look: Cells contain molecules that are made up of even smaller components called atoms. Figure 1: Levels of the body from smallest to largest: Atoms, molecules, cells, tissues, organs, and organ systems.