As a kid you always saw sow bugs in damp and dark areas. According to Melville H. Hatch’s, Records of Terrestrial Isopoda or Sow Bugs from North America, where they researched different sow bugs and stated that the sow bugs are not limited to the sea shore, but they are still sound in wet, dark environments. (Hatch, 1939) Also, in Pill Bugs Up Close, living in damp, dark places keeps the Sow Bugs from drying out. Showing why most of them prefer dark, wet places. Sow bugs also prefer dark, damp, covered places because it keeps them hidden from most of their enemies, according to Pill Bug Biology: A Spider’s Spinach, But a Biologist’s Delight.
Scooby doo, Gromit, Snoopy, Goofy, Pluto, Clifford and Red Dog. They are all famous dogs of course! How many famous cats can you think of? You would have be a toidi to think that cats are better than dogs. I defiantly believe that dogs are way better than cats.
Cell division stops until p53 binds to DNA and repairs the damage. C. p53 is an example of an oncogene, and its expression causes uncontrolled cell division. D. activation of p53 leads to inhibition of the S-phase cyclin-CDK complex. 6. All of the following statements correctly describe M-Cdk, EXCEPT: A. M-Cdk causes the cell to enter S phase and begin DNA replication.
The plasma membrane acts as a selective barrier between the cell and its environment, and is a structure that you will study in detail throughout the year. The nucleus consists of a limiting double bilayer nuclear envelope containing nuclear pores enclosing the nucleoplasm. Small, irregular particles scattered throughout the nucleus or accumulated adjacent to the nuclear envelope are clumps of condensed chromatin known as heterochromatin. They consist of protein and DNA and stain with basic dyes. When the chromatin is dispersed and not readily stainable, it is known as euchromatin.
| | | A) | provides a location for DNA production | | | B) | helps decrease surface area | | | C) | allows selective permeability of cell membrane | | | D) | facilitates breakdown of chemical bonds | | | | | | Feedback: The pleats and folds of the endoplasmic reticulum provides a large surface area where cellular functions, such as breaking chemical bonds, can take place. |
The cause that initiated this tremendously, horrible disease was the Xenopsylla cheopis (rat flea) transmitting the bacteria Yersina petis that led to start of this catastrophe. The rat flea survived as a parasite that bit and sucked the blood of its host, including the black rat, which was the principal carrier of the plague (Dunn 8). Researches have concluded that this disease was an unusual and difficult development. One reason being, that the fleas were not attracted to human beings, but to rodents. The disease was carried on even with the death of the infested rat by the rat fleas.
What is the difference between prokaryotic cells and eukaryotic cells? What are the names for the two major groups of prokaryotes? both have a cell membrance on the outside and both have ribosomes but the eucaryotic only have membrane bound organelles. both can have the cell wal. euc.
Rodents played a large roll in spreading Bubonic plague. Plague occurs in arias with a lot of burrowing rodents. During the renaissance rats were probably big problems. Any rat living in someone’s home or running down the street could be infected. Rodents also act as long term preservers for plague.
It does this by controlling the enzymes present. The chromatin is composed of DNA. DNA contains the information for the production of proteins. | Mitochondria | Mitochondria have two membranes (not one as in other organelles). The outer membrane covers the organelle and contains it.
Farmers don’t need to use pesticides to protect GM plants because plants can produce pesticide called Bt (Bacillus thuringiensis) which can kill bugs. The toxin of Bt can also influence human’s respiratory system. Apart from this, since GM foods change human biochemistry, they cause disease or create new disease such as allergic reactions and acyesis, and reduce the cure rate of cancer. (Genetically Modified Food, 2008, p.18,19,28) Moreover, GM foods may have unknown effects on human health. Scientists “examined the effects of GM potatoes on the digestive tract in rats.