They come from underfoot, like weeds.
Try this crossword as a review of some vocabulary you should definitely know going into the Exam.
Let me know if this works for you – I have never used this particular crossword maker before. I will also post a pdf copy of this puzzle on blackboard if you prefer to do it on paper.
Just a quick post today to point to a set of older entries discussing the Lac Operon.
The first does’t have much, but it does link to an animation that is useful in presenting how the operon and its regulators react to changing conditions.
The second is longer and ends with a graph of cellular metabolism that does a good job of showing what happens when one substrate runs out resulting in a switch to the new substrate (glucose –> lactose).
The last is probably the best as it summarizes the information on the other two and includes some cartoons that I feel clearly show the conditions the cell is living in and effect this has on the cell’s sugar use.
This may also be a good time to point out that the banner above includes a link to a hyperlinked table of contents. Although not all my posts have been categorized, it does have quite a few and they are organized by category. I encourage my students to take advantage of this resource if there are subjects they would benefit from reading a bit about. I’ll of my best to keep working on this page to include at least the more substance-rich posts.
Perhaps to the location of extra credit possibilities?
Things that show up on Jeopardy Review often show up on Exams. But if you just want a point for the quiz tomorrow (General Bio), then you might want to consider the history behind this painting.
The recent spread of Ebola this year has been a great opportunity to examine both the biology of the virus and epidemiology of infection. In my classes, this topic has come up regularly with each news event. As of this time, it’s still just a curiosity to watch from afar and see how epidemics get started, balloon into larger problems, interact with the global transportation system, spread into pandemics, provide insight into how different political and health organizations deal with the problem.
Typically Ebola has been a self-limiting infection. Because of the high death rate and remote locations outbreaks have occurred in, few people have been able to get infected and make it out ‘to civilization’ alive. Those who have presumably were no longer carrying the virus when they did come into contact with the wider world. I imagine these outbreaks sort of like forest fires erupting on tropical islands: The fire ignites, burns the trees on the island and then dies away when there is no more fuel to consume.
This year, the fire has burned more brightly than ever before, scattering embers into the wind. Travelers and healthcare workers alike have been exposed and left the site of the epidemics with the virus within them. Unfortunately, these individuals have helped to spread Ebola Virus far from Africa. Often these people arrive in foreign countries as patients looking for superior healthcare, and in large part they have received treatment without spreading the virus to others.
The US has recently seen its first case of Ebola arriving in the country ‘unbidden’ – meaning it was not someone who was brought to the US for treatment, but rather was someone who arrived in the US during the incubation time of the disease. Shortly after, the first documented case of Ebola transmission in the US occurred. It’s possible that you’re hitting the panic button now – or you’re waiting to see how things will develop as a test of the health protocols for dealing with this sort of thing. Or, perhaps you’re a singer and you get to mouth off in total ignorance .
In the meantime, take a look at this website. It has some excellent, well organized descriptions of the virus, its transmission, and the disease it causes.
Who Killed Laura Palmer? No, we know that.
Who is Bob? Oh, wait. We know that too.
But that’s not to say that there are no unanswered questions. In fact, the whole world of Twin Peaks is a series of unending mystery. On the surface, the town is quaint and peaceful. An idyllic place to live amongst the pine-covered hills with nature at the doorstep. But everyone has their story. And people’s stories are never clean and neat. There’s always intrigue, mistrust, past histories, and hidden desires. And that’s still just scraping the surface. The forest was a character too. Home to the owls and the site of the black lodge. Even space messages came to Twin Peaks – or at least the spirits of the lodge’s messages apparently come down from space.
Lynch and Frost were pressured to rush their story and provide answers to the story arcs they developed. The alternatives were a slower reveal. Or perhaps not even a reveal at all. Do all questions need an answer? The LA Times thinks not: “[T]here’s only one question that co-creators David Lynch and Mark Frost need to answer: Will they commit to not giving us all the answers?”
Look forward to revisiting the double R, That’s damned fine coffee.