Explanation:
<em>In </em><em>the </em><em>2</em><em>0</em><em>0</em><em>-</em><em>p</em><em>l</em><em>u</em><em>s</em><em> </em><em>years </em><em>since </em><em>the </em><em>industrial </em><em>revolution </em><em>began,</em><em>concentration </em><em>of </em><em>carbon </em><em>dioxide </em><em>in </em><em>the </em><em>atmosphere </em><em>has </em><em>increased </em><em>due </em><em>to </em><em>human </em><em>actions.During </em><em>this </em><em>time,</em><em>the </em><em>pH </em><em>of </em><em>surface </em><em>ocean </em><em>waters </em><em>has </em><em>fallen </em><em>by </em><em>0</em><em>.</em><em>1</em><em> </em><em>pH </em><em>units.This</em><em> </em><em>might </em><em>not </em><em>sound </em><em>like </em><em>much,</em><em>but </em><em>the </em><em>pH </em><em>scale </em><em>is </em><em>logarithmic,</em><em>so </em><em>this </em><em>change </em><em>represents </em><em>approximately </em><em>a </em><em>3</em><em>0</em><em> </em><em>percent </em><em>increase </em><em>in </em><em>acidility.</em>
<em>Pick </em><em>as </em><em>brainliest </em><em>like </em><em>my </em><em>answer</em>
<em>that's </em><em>the </em><em>answer </em><em>of </em><em>my </em><em>book </em>
<em>hope </em><em>it </em><em>helps</em>
<em>#</em><em>b</em><em>r</em><em>a</em><em>i</em><em>n</em><em>l</em><em>y</em><em>e</em><em>v</em><em>e</em><em>r</em><em>y</em><em>d</em><em>a</em><em>y</em>
<em>#</em><em>c</em><em>t</em><em>t</em><em>o</em>
Ungulate refers to the large, diverse group of mammals which use the tip of their toes to support their whole body weight while moving. They are divided into two, which are odd toe and even toe ungulates.
Even toe ungulates are those mammals whose weight are supported equally by their third and fourth toes while they are moving. Examples of such animals are cattle, pig, giraffe, camel, etc.<span />
Answer:
16. Directional Selection
17. Disruptive Selection
18. Stabilizing Selection
19. Natural Selection
20. Adaptation
Explanation:
In population genetics, directional selection/positive selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes.
Disruptive Selection would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
Stabilizing Selection. Occurs when individuals at the extremes of the range of characteristic are selected against. This means that the "average" individuals are selected for.
Discovery of structure of DNA by Franklin and Watson and Crick.
Explanation:
Rosalind Franklin was researching about DNA structure at the King’s College at London based on x-ray diffraction studies; while, Crick and Watson were researching on the same at the Cambridge University based on Linus Pauling discovery of proteins.
Once when Watson happen to listen to Franklin’s lecture upon DNA structure and how it depends on relative humidity of the air and other facts relating to DNA; he along with Crick made physical DNA models which became a big failure.
Later, Franklin found that a wet form of DNA with high humidity had a helix like structure. This point became the base of later discovery of Watson and Crick’s double helix model of DNA along with the discovery of DNA molecules being made up of double chain of nucleotides.
