Describe one of the most recent disease outbreaks, and the role of epidemiologists (descriptive and/or analytical) in addressing it. What questions would you ask an epidemiologist, if you had the chance to interview one?
In: Biology
Would it be useful to use more or less of β-glucanase or β-xylanase enzyme when testing flour viscosity? Why?
In: Biology
Describe the external and internal morphology/structures of the microphylls of Selaginella and the megaphyll fronds of ferns. Which one is effective at photosynthesis? Why?
In: Biology
Find recent (within the past year) research regarding the most effective heart health nutrients/supplements in addition to CoQ10. Thoroughly explain each of these nutrients in terms of the physiology of heart health. (1 page). Ensure in your own words and obtain the most recent research.
In: Biology
A single population becomes separated by a geographic barrier, and each population acquires genetic differences. What could happen if this barrier is removed and the two populations interact and attempt to mate? Refer to isolating mechanisms.
In: Biology
1. Identify the structural regions on the illustration from the previous question. Tree Section Identification: Clues for tree species identification:
Oak Bark- Light to dark grey and scaly Sapwood- Creamy white to light brown Heartwood- Grayish to reddish brown Special Features- Distinct growth rings, light colored wood rays
Basswood Bark- Grayish red with shallow features Sapwood- Whitish to cream brown, narrow dark summerwood and wide white springwood Heartwood- Similar to sapwood Special Features- Growth rings evident, soft textured wood
Black Walnut Bark- Reddish brown with grooves Sapwood- Creamy white Heartwood- Chocolate brown Special Features- Growth rings less apparent, narrow sapwood region, hard textured wood
American (White) Ash Bark- Grayish brown with grooves Sapwood- Light colored, narrow dark summerwood and wide white springwood Heartwood- Brown to reddish brown with possible red tinge Special Features- Distinct growth rings, narrow sapwood region, hard textured wood
White Pine Bark- Smooth, greenish gray on young trees Sapwood- Light cream, narrow dark summerwood and wide white springwood Heartwood- Cream colored tinged with red Special Features- growth rings evident, soft textured wood
Red Pine Bark- Reddish brown Sapwood- White to light yellow, narrow dark summerwood and wide white springwood Heartwood- Red to reddish brown Special Features- Growth rings evident, soft textured wood
2. What would suggest variations in the amount of moisture available during a good or bad year for the life of the tree?
3. What does it mean to "girdle" a tree trunk and how does it affect the tree?
4. How would the bark of a younger tree appear as compared with that of an older tree
5. What would suggest variations in the amount of moisture available during the life of the tree? Explain.
In: Biology
Find recent (within the past year) research regarding heart health nutrients: specifically on Omega 3s, Resveratol and ECGC. Explain what these do in terms of heart health physiologyin your own words thoroughly ( 1 page)
In: Biology
In: Biology
*minimum 250 words
Imagine that you are enjoying a delicious dinner with friends and family of various ages (age 6 to age 81) (who are not scientists or science majors and are not familiar with the topic), and the topic of photosythesis is brought up. How would you explain the process of photoynthesis and its importance for our planet to those of all ages around the table? Feel free to give several different explanations to target various age groups......
In: Biology
Based on laboratory testing, it was discovered that the Doubling Time for E.coli at 25oC is 40 min. Also, based on laboratory testing, it was discovered that E.coli die at 45oC.
Fill in the table with the estimated number of bacteria:
|
Time (min) |
0 |
30 |
60 |
120 |
200 |
400 |
600 |
|
# of E.coli at 25 oC |
1 |
||||||
|
# of E.coli at 37 oC |
1 |
In: Biology
Why is it important to randomly select your plots when sampling species diversity?
In: Biology
In a population of 16,000 people, 67 are affected with a mild autosomal recessive condition. What is the estimated number of carriers for this condition in this population?
In: Biology
Describe the molecular mechanisms of mitochondrial ATP synthesis
biochem
In: Biology
A couple have experienced multiple miscarriages, and a balanced translocation is suspected to be the cause. Which form of genetic testing would be most appropriate?
a. Microarray
b. Karyotype
c. Amniocentesis
d. Next-gen sequencing
Continuing from the last question, who should be tested first? a. The man b. The woman c. Neither partner takes priority
In: Biology
Describe the β-oxidation of the fatty acid palmitate.
biochem question
In: Biology