Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Giving minimal credence to estimates in popular media of the average biomass of insects/arachnids, etc. in an acre of land, it seems that a "free-range" cow (I don't mean to pick on cows) might be s
Snails... We have some kind of huge garden snails appearing lately (read since the last 10 years or so). Try as one might, it's impossible to avoid them when driving. These snails do not appear to h
I am reading about the effect of extracellular potassium and chloride on the membrane potential, and now a question has come to my mind about what would happen if we added some molecules that have n
As far as I can determine, lactose, and the monosaccharide galactose have few biological uses outside of mammalian lactation. It not only required enzymes for its production, but enzymes in offsprin
Melanin is a natural pigment that is categorized into two main forms, eumelanin and pheomelanin. It's well documented in the science literature that increased eumelanin levels reduces the risk of d
Then there are sciences that deal with behavior and cognition of humans.As I read about these, I notice that there's quite a lot of overlap, particularly when neurotransmitters and hormones are invo
I'm wondering if mammals that can eat many different kinds of food (omnivores) vary their preference for food not only based on the availability, but also based on dietary needs.
Quite simply, some organisms metabolize glucose under anaerobic conditions via Glucose->(2) Pyruvic Acid->(2)Ethyl Alcohol. Some organisms, however, metabolize to lactic acid.
While eating sour food or candy, I start to sweat if it's sour enough. My body feels much hotter although my actual temperature is the same, my forehead starts sweating a lot and I feel like it just
I'm going to undertake an siRNA experiment soon, but I have only read about them. I want to address the role an enzyme plays in processing a protein. From what I understand, I will need to pick two
A giraffe's heart has special adaptations to enable it to pump blood up the animal's long neck to its head. A giraffe's heart has the formidable task of pumping blood at high enough pressure so that
I know that somehow the hypothalamus "orders" to increase the standard body temperature regulation, and this should stimulate mitochondria to produce more ATP.
Walking is an acquired skill; As far as I'm concerned exhaustion causes disorientation. Even after waking up it sometimes takes a second or so to get balanced.
Birds from the family Columbidae (e.g., doves and pigeons) produce a fatty, milk-like substance in their crop. The secretion is often referred to as "crop milk." They feed crop milk to their young t
I'm unsure about the use of physiology/metabolism in the title there. The question in mind is whether this reversible binding makes an organism slower, or faster; perhaps more capable of surviving i
What is the population of coliforms and generic E.coli in the following sample? you plated 150ul per plate (duplicate plates) and all dilutions were made on 9 ml 0.1% peptone water tubes. Initial we
What is the relationship between having a capsule and the ability of a bacteria to cause disease? WHY?
What volume of a 15% NaCl-Agar broth should be used to prepare 375 ml of 0.5 % NaCl-Agar broth? How many 24 ml plates can you make with this 375 ml?
What levels of protein structure would be affected if all hydrogen bonding interactions were prevented
You have three guinea pigs: white, orange, and brown. You wanted to make some crosses to determine inheritance pattern for coat color.
Males usually have 1 Y chromosome and 1 X chromosome (XY). However, in extremely rare cases males can have 2 Y chromosomes AND 3 X chromosomes (XXXYY). These males have severe mental retardation and
It's obvious how a misdisjunction can result in klinefelter's syndrome (XXY) but I don't see how this can result in XYY syndrome. Your parents have a collective total of only one Y chromosome so,
For some inexplicable reason from the ladies in my extended family (even friends!) seem to believe that vegetables/food should be subjected to as few freeze/thaw cycles as possible. The rationale pu
We all carry two copies of each gene (outside of male sex chromosomes). If the two differ from each other often one is dominant and one recessive. How does this mechanism work on a molecular level?
I know from school, that all live on the Earth need bacteria as low-level "machines" that break down/extract/convert/produce chemical elements and combinations, other high-level organisms needed. Bu