500 words for discussion and 250 word for each reply5
Everything required is your responsibility. DirectionsGo to the Biodiversity and Evolutionary Trees: An Activity on Biological Classification (Links to an external site.) and work through the activity sorting sea shells based on morphological characteristics to study evolutionary relationships.
Please take notes, describing each step of identifying and selecting snails as you work through the activity. Please take a screen shot of the final drawing showing the evolutionary relationship of all snails listed and answer the following questions:Why was the scallop among the snails? (HINT: Watch “Dr. Olivera discusses major molluscan groups [Duration 04:25] (Links to an external site.)”)
What additional tests could be used to examine evolutionary relationships among molluscs (snail species)? (HINT: Watch “Dr. Olivera discusses how to classify shells [Duration 03:26] (Links to an external site.)”)
How was the name of different cone snail species decided? (HINT: Watch the video “Dr. Olivera discusses species names [Duration 02:02] (Links to an external site.)”)
Where are cone snails found and what are their feeding habits? (HINT: Click on snail images on the final evolutionary tree for more information about species).
Describe the evolutionary history of snails (Molluscs). In which eon, era and period did the first snails evolve? (HINT: Textbook, chapter 27.3)
Save your completed assignment in .doc, or .docx format. Name it as “Mod4-Activity-Your Initials.”
Submit the screenshot and the answers to the list of questions by clicking the Submit Assignment button above.
Choose one of the following “developments in technology” and do some research on the current state of this technology. Be sure to cite your sources. Please do NOT make Wikipedia your primary source. You may use it, but there should be other reputable sources included first. TOPIC NANOTECHNOLOGY
In what way does NANOTECHNOLOGY impact your life today?
) For this lab, you will follow the directions on the lab document below with a few modifications.
You will take a picture of each chromosomal arrangement you do. Each photo must have your name and the date in the photo. You can just write and the top on the paper since you will be using the same sheet over and over to arrange your chromosomes.
Instead of answering your questions on the back of the sheet or in the lab as it suggests you will put them on the separate answer sheets provided. You will do all the scatter sheets. The last page of the answer sheet is a table where you can put in the information.
If I don’t the deer will destroy it. When my grandfather was young, deer were scarce. They had been overhunted. While that sounds terrible, this was the South, many people were recovering from the great depression and those deer were eaten. People were hungry. Fast forward to now. There are no real predators in most areas other than hunting. The deer population is huge. That has led to an increase of Chronic Wasting Disease. Below are some links that discuss all of this and why it is important. Use these links to explain to your classmates your understanding of deer as a Keystone Species and their role in the ecosystems.
Read this first: What is a Keystone species? Keystone Species 101 (Links to an external site.)
Then read this: What is CWD? (Links to an external site.)
Then choose one or both of the following sources to discuss. Make sure you cite it/them in APA. then, since this is a Discussion, make sure you reply to two other classmates.
Managing White-Tailed Deer (Links to an external site.)
White-Tailed Deer and the Wild Places They Shape
Do a little research and see if you can find more information. Do you think the information in the link is right. Present it in your own words in an original post. Then respond to two other students. All citations must be in APA format. Any source must be cited.
Give response to those two students.
It is a typical misguided judgement that a specific prevailing quality that cause a window’s peak hairline. Like different attributes that impact hair development, different qualities cooperate to assist with deciding the state of our hairlines. A few specialists accept that hair designs are heritable, so a direct relation with a widow’s peak hairline might expand your shots at having this hairline, as well. Heredity markers in your DNA, alongside age and sex, impact the odds that you will have a widow’s peak hairline. Most young children have a smooth, level hairline. As they age into their teenager and adult years, their hairlines will in general, move higher up the brows. The presence or nonappearance of a widow’s peak hairline is simply one more illustration of our different highlights. Age-related retreating hairline examples can likewise look like a widow’s peak in all kinds of people. I believe this information is right as both links basically state that the widow’s peak is only a genetic feature and nothing that could be passed on in reality. I, personally, do not have widow’s peak but I am interested to know, do you? 23andMe. (n.d.). Widow’s peak hairline
For the purpose of this discussion, it is a scientific discussion, not a religious or moral discussion. Your discussion posts need to treat it as such. Focus on the science. I defined it in the resources as a change in population over time. Remember, focus on the science. This is a science class.
Before you start, I want you all to watch the following video.
Four billion years of evolution in six minutes (Links to an external site.)
Choose one of the videos or sites below. My suggestion is that you take the time to check them all out before you choose. Make your original posts (20 points) based on what you learned from the source you chose. Make sure that you take notes while you are watching or reading. Answer two other people for 10 points each. I will not give ten points for “Nice job.” or “That is so interesting”. Make a point. Add to the conversation. How does it tie into what you learned?
Evolution in Action (Links to an external site.)
Color Variation Over Time in Rock Pocket Mouse Populations (Links to an external site.)
The Origin of Species: The Beak of the Finch (Links to an external site.)
The 12 Days of Evolution (Links to an external site.)
Evidence of Evolution (Links to an external site.)
How we Found out evolution is true: John van Wyhe at TEDxNTU (Links to an external site.)
Theory of Evolution: How Did Darwin come up with it? (Links to an external site.)
How evolution works (and how we figured it out) (Links to an external site.)
Pepsinogen is the inactive form of pepsin. Why do chief cells secret pepsinogen instead of pepsin, the activated protease? Be sure to only post one post and if you post two the first post will be graded even if it is blank.
His case is mild and he has lived most of his 18 years with very
few complications. Rickey will be entering college in the fall and is
very excited about it. Recently, there has been a lot of publicity about
the number of labs all over the country that are developing gene
therapy protocols for cystic fibrosis.
Rickey’s case is mild, so he is expected to live a normal life
span, but he will definitely pass the gene to his children. Unless he
marries a woman who is a carrier, his children will not have CF.
Recently Rickey read a comprehensive article about the Jesse
Gelsinger case and thought that Jesse was a hero. He talked to Mike and
June at length about the case and said over and over again that he
wanted to look into doing something like that himself. This really
frightened his parents.
They weren’t sure they could trust the doctors doing the
experimental therapy, but they thought it would be wonderful if Rickey
could be “cured”.
Without telling his parents, Rickey contacted the doctor in
California who was named in the article. A letter came back stating that
Rickey might be a good candidate for the trials. After showing Mike and
June the letter, Rickey tells them he wants to volunteer.
1. What should Mike and June do? Suggest at least two possibilities.
2. Rickey, like Jesse, is not a minor. Should he be allowed to make this decision without his parent’s consent? Why or why not?
3. What legal problems might arise if Rickey volunteers for the study?
It’s an essay question. Second question is explain the effects on digestion and absorption along the small intestine. Third one is Milk is the only food in a baby’s diet. Describe what happens to milk along the alimentary canal after being taken by a baby.