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Question - In 2015 in Alaska, an enormous number of walrus females and their calves gathered on a single beach. In the past, the walruses would use sea ice as a place to rest and nurse their calves, but due to human activity and global warming, large amounts of the ice have melted. Explain what consequences could happen to the walruses and their ecosystem in this situation over time.
Answer - Since there is so much global warming problems it rises the temperature of earth. Female walruses nurse their calves on ice blocks but since most, or not all have been melted they cant nurse in the future because there not used to a different environment. Eventually over time their species will die out and become extinct.
Answer
The ventral body cavity is subdivided into the thoracic cavity and the abdominopelvic cavity.
Explanation
The backside of human body is known as dorsal side while the side where diaphragm and ribs are present is known as ventral side. The cavity present on the ventral side is known as ventral cavity. It contains important organelles of the body and is further divied into:
1. Thoracic Cavity
It is also known as chest cavity separate the upper part from lower through diaphragm. It is a house for esophagus, trachea, heart and its associated blood vessels.
2. Abdomopelvic Cavity
It is subdivided into abdominal cavity and pelvic cavity. However there is no partition that separate these two cavities from each other.
a. Abdominal cavity
It is house for kidneys, gallbladder, liver, small intestine and part of large intestine.
b. Pelvic cavity
it is house for colon, rectum. Reproductive organs and urinary bladder.
Destruction of biodiversity. Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —. Contamination of the food chain.Human diseases: Pathogens(viruses,bacteria,fungi,protozoa etc)are biological pollutants of water. They cause typhoid,cholera,dysentery,jaundice,hepatitis.
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<span>I found the exercise online and this is the answer:
A.
Non dividing cells exit cell cycleB.
At this point, cell commits to go through the cycle.- If the cell passed the checkpoint, it can now enter the cycle, starting on the first stage: G1
C.
DNA replicates - The cell starts replicating the DNA in the S phase to then later, separate it in two cells.
D.
Centrosome replicatesE. Mitotic spindle begins to form. in the M phase, after passing the G2 checkpoint
F.
Cell divides, forming two daughter cells.- After passing the last checkpoint, the call can finally start mitosis process.</span>
D) Plate Tectonics... Please answer my recent question. I am doing homework and I don't know it LOL.. Well I hope my answer helped!!<span></span>