Gggggggggggggghh by Ed for G
Answer:
The answer is letter C.
Explanation:
The spliceosome can not excise RNA sequences bounded by an upstream 5' splice site and a downstream 3' splice site.B
Because it is not possible to produce an mRNA with the composition Exon 1 Intron AExon 3, it would require the use of two 3' splice sites.
Answer and explanation;
-Invasive species cause harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. It can breed and spread quickly, taking over an area.
-The direct threats of invasive species include preying on native species, out-competing native species for food or other resources, causing or carrying disease, and preventing native species from reproducing or killing a native species' young.
-In this case; Feral pigs will eat almost anything, including native birds. They compete with native wildlife for food sources such as acorns. Feral pigs spread diseases, such as brucellosis, to people and livestock. E. coli from their feces was implicated in the E. coli contamination of baby spinach in 2006.
-Water hyacinth is a beautiful aquatic plant. In the wild, it forms dense mats, reducing sunlight for submerged plants and aquatic organisms, crowding out native aquatic plants, and clogging waterways and intake pipes.
Here are some of the themes in biology that come up again and again:
-cellular basis of life
-information and heredity
-matter and energy
-development and reproduction
-homeostasis
-evolution
-structure and function
-unity and diversity of life
-interdependence in nature
-science as a way of knowing
