Answer:
The Viking tubing is meant to be the cell membrane. Glucose manages to move out of the bag and into the surrounding water but starch does not. Not all substances can pass through the cell membrane; some molecules, like starch are too large. The cell membrane is called selectively permeable because of this.
Explanation:
Answer:
The spinal cord is a long cylinder of nerves that runs from the base of your brain through the vertebral canal through the backbone. It is part of the central nervous system (CNS) along with the brain. It is divided into different segments. Each segment contains a pair roots made out of nerve fibres.
Explanation:
Answer and Explanation:
<em>Cowbirds would be considered </em><em>an edge species</em><em>, meaning that these animals </em><em>need to live in an ecotone</em><em>. </em>
An ecotone is a transition area between two communities, or ecosystems. It is the zone of maximum interaction, and therefore with greater biological richness. The number of species is usually higher in adjacent areas, making it a meeting place for living organisms. The ecotone is usually associated with the "edge" term. The edge is the physical place where the two communities, or ecosystems meet.
The animals that live on the edge, are usually those that need two or more types of plant communities to live. In the case of the cowbird, they prefer to forage in open spaces such as grasslands, meadows, pastures and other places with short vegetation, where they can find food resources like seeds and invertebrates. They also need to lay their eggs in host nests that might be located in grasslands or forest edges over trees or shrubs where they might also roost.
The cowbirds are considered to be an edge species because they need two vegetable communities to live: open areas to feed in and forest edges to lay their eggs and roost.
Answer:
Cetacea it's the correct answer!
There is no prescribed length of time it takes to photographically document a crime scene. The amount of time spent depends on the size and complication in the crime scene, how much there is to document and environmental factors like weather or danger to the investigative team. It can consist of thousands of photographs and hours of work.
Crime scene photography should not just focus on the obvious. The purpose of crime scene photography is to document what is there and where it is in relationship to the scene, whether it is obviously connected to the crime or not. For example, a photographer in Florida shot the inside of every cabinet and the refrigerator at a homicide scene in a home, just as a matter of procedure. It was later discovered that the victim had a receipt for a six-pack of beer, matching the beer shown in the photograph of the refrigerator. Relatives noted that the victim did not drink beer. Further investigation led the team to the convenience store where the beer was purchased and the surveillance tape showed the victim with an unknown person purchasing the beer. It turns out that the victim had picked up a hitchhiker, purchased beer for that person and come back to the house. The photograph of the refrigerator contents had created the link enabling the investigators to find the suspect.