Answer:
Yersinia pests
Explanation:
it is a bacterium. its vectors is infected flea from an animal. The plague can also results from contact with contaminated fluid from dead infected animal from bubonic plague.
when the flea bites, the bacterium enters the blood stream and through the lymphatic systems it finds it way into the lymph nodes of the armpit and pubic region.
it localized in the nodes leading to swelling, enlarged nodes-buboe, with painful sensation.
chills, high fever, seizures, are some of the symptoms.
proper hygiene is the best preventive methods.
Answer:
Mitosis is true about reproduction that involves Meiosis. Somatic cells are segregated to produce the replica of same. This is the way skin and other body places are thoroughly replaced.
Explanation:
Answer: I am pretty sure that the answer is A. For me A had "The substrate was used up by the time the temperature reached 60°C".
Explanation: Both A's have similar questions, I'm really sorry if its correct
Answer: c
Explanation: the dna makes up the chromosome, which is in the nucleus of the cell
Answer and explanation;
The level of organization in human body is;
cells → tissues → organs → organ systems → the organism.
-Cells are the smallest unit of any living thing. it is the basic unit of living organisms.
-Tissues are groups of specialized cells working together to perform a specific function.
-An organ is a complex system of tissues working together to perform a life task for a human body. Examples: Heart, lungs, liver, kidneys, eyes, brain, stomach, intestines, and pancreas are a few of the organs that reside in the human body.
-An organ system is a group of organs working together to keep the human body alive. They include; Digestive system, Respiratory system, Endocrine system, Immune system, etc.
