The correct answer is C. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.
Explanation:
A weather event refers to a specific phenomenon in weather that in most cases is not common but particular and specific, which is different to weather patterns, this includes specific hurricanes, abnormal rain patterns, etc. Considering this, the one that is an example of a weather event is "A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999" because this is a specific phenomenon rather than a pattern in weather as int the case of hurricane seasons or permanent weather conditions.
Answer:
humanity has a 95% probability of being extinct in 7,800,000 years
An organism is an animal with 5 levels of organization/
Answer:
The answer is actually B) Memory T. Memory T cells rapidly produce large numbers of effector T-cells when re-exposed to their antigens, which provides the immune system memory against past infections.
Answer:
They do not contain chromosomes. (Ans.C).
Explanation:
Cyanobacteria also known as blue-green algae, they are heterogeneous group of photosynthetic prokaryotic organisms. Like prokaryotes such as bacteria, cyanobacteria lack endoplasmic reticulum, mitochondria, membrane bound nucleus, and Golgi apparatus. Bacteria are simpler than other organisms, and single celled microbes.
Both bacteria and cyanobacteria reproduce through the asexual method either by binary fission in unicellular, multiple fission in colonial form or by spore formation, and fragmentation in filamentous species.
