which kingdom contains the most diversity in terms of DNA sequences?

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Question 1

Of the following, which kingdom contains the most diversity in terms of DNA sequences?

A. Fungi

B. Animalia

C. Protista

D. All of these are approximately equivalently diverse.

E. Plantae

.

5 points

Question 2

In bacteria, the cell wall is composed mainly of

A. peptidoglycans.

B. proteins.

C. various polysaccharides.

D. glycoproteins.

E. lipids.

.

5 points

Question 3

All but one of the following are false regarding protists. Identify the true statement.

A. Protists do not have the ability to move on their own.

B. Protists are prokaryotic.

C. Protists have cell walls composed mainly of peptidoglycans.

D. All protists are single-celled organisms.

E. Most protists are single-celled organisms; some are multicellular.

.

5 points

Question 4

Most bacteria are

A. microbial predators.

B. photoautotrophs.

C. symbionts.

D. chemoautotrophs.

E. heterotrophs.

.

5 points

Question 5

What term is used to indicate a characteristic that is shared and inherited from a common ancestor?

A.

derived trait

B.

analogous trait

C.

outgroups

D.

homologous trait

E.

cladistic trait

.

5 points

Question 6

Rickettsias belong to which major group of bacteria?

A. Archaea

B. viruses

C. proteobacteria

D. cyanobacteria

E. spirochetes

.

5 points

Question 7

Oxygen built up in the atmosphere approximately 2 billion years ago and

A. could not have occurred without the oxygen coming from outer space.

B. occurred due to carbon dioxide being split by lightning strikes.

C. occurred because aerobic organisms required the oxygen.

D. destroyed ozone forming more oxygen.

E. helped to form the ozone layer that is so important to life today.

.

5 points

Question 8

Endospores form

A. to produce two offspring from every one parental cell.

B. when the environmental conditions are favorable.

C. as a means of genetic recombination.

D. in response to adverse conditions.

E. during binary fission.

.

5 points

Question 9

The Cambrian Explosion provided a wealth of fossil remains for scientists to uncover. Many of the animals from this time period had tough skins or shells. This would

A. be a disadvantage for these organisms and lead to their death and fossil formation.

B. allow the animals to move into different environments easily.

C. protect the animal from osmotic pressure.

D. make these animals more desirable to predators.

E. protect the animal from predators.

.

5 points

Question 10

When taxonomists classify organisms using a phylogenetic approach, they are most concerned with

A. derived traits.

B. ancestral traits.

C. outgroups.

D. cladists.

E. ingroups.

.

5 points

Question 11

Which form of bacterial cells is rod shaped?

A. spirilla

B. bacilli

C. cocci

D. vibrios

E. rhodius

.

5 points

Question 12

The endosymbiont hypothesis suggests that the mitochondria of eukaryotic cells are descended from captured

A. cyanobacteria.

B. chemoautotrophic bacteria.

C. archaebacteria.

D. eukaryotic algae.

E. aerobic bacteria.

.

5 points

Question 13

Kelps are a form of what group of protists?

A. water molds

B. slime molds

C. dinoflagellates

D. ciliates

E. brown algae

.

5 points

Question 14

Prions are composed of

A. DNA, RNA, and protein.

B. DNA and protein.

C. protein.

D. RNA.

E. DNA.

.

5 points

Question 15

What is the main difference between protists and bacteria?

A. Protists have a nucleus, bacteria do not

B. Protists cannot cause infections, bacteria can

C. Bacteria have DNA, protists do not.

D. Bacteria are always gram-negative, protists are gram-positive

E. Protists are unicellular, bacteria are multicellular.

.

5 points

Question 16

During which geological era did Pangea break apart?

A. Cenozoic

B. Proterozoic

C. Archean

D. Mesozoic

E. Paleozoic

.

5 points

Question 17

Paleontologists have found fossils dating back 3.6 billion years. These closely resemble

A. blue-green algae present today.

B. fungi.

C. small invertebrate animals.

D. today’s simplest plants.

E. nothing alive today.

.

5 points

Question 18

Atmospheric chemists think that Earth’s first atmosphere

A.

consisted of carbon in the form of carbon dioxide.

B.

consisted of carbon in the form of carbon monoxide.

C.

contained nitrogen in the form of ammonia and nitrogen gas.

D.

was very similar to today’s atmosphere.

E.

contained no oxygen atoms.

.

5 points

Question 19

Eukaryotic cells are thought to have

A. evolved before prokaryotic cells.

B. appeared about 2.1 billion years ago.

C. first appeared as parts of multicellular organisms.

D. first appeared with tough cell walls.

E. developed when mitochondria grew much larger in size that they had been previously.

.

5 points

Question 20

Some bacteria can form resting structures called ___________ that can withstand extremes in temperature, moisture, and radiation.

A. viroids

B. endospores

C. capsids

D. symbionts

E. prions

 

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Question Mini Case Study on International Crisis (week 6) In 1990 Iraq invaded Kuwait claiming that Kuwait was stealing oil from an oil field that straddled the Iraq-Kuwait border and that the territory of Kuwait had historically been a province of Iraq

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Question Mini Case Study on International Crisis (week 6) In 1990 Iraq invaded Kuwait claiming that Kuwait was stealing oil from an oil field that straddled the Iraq-Kuwait border and that the territory of Kuwait had historically been a province of Iraq. Iraq quickly overran Kuwait which was much smaller and militarily weaker than Iraq. Once Iraq had taken over Kuwait it destroyed property records and other important documents as if to eradicate the legal vestiges of the Kuwaiti government. Iraq also postured in a way that was widely viewed as threatening Saudi Arabia home to arguably the most important oil fields in the world. In 1991 the United Nations Security Council authorized military action to evict Iraq and a multinational force with 34 members soon evicted Iraq from Kuwait and restored the Kuwaiti government. The League of Arab States also approved of military action to reverse the invasion of Kuwait; both Iraq and Kuwait were (and still are) members of the league and a number of Arab states participated in the military action. Under the terms of the 1991 ceasefire after the restoration of the Kuwaiti government Iraq pledged to dismantle its weapons of mass destruction (WMD) programs. At the time it was widely believed that Iraq was developing nuclear weapons. Further it was documented by the U.N. that Iraq had actually used chemical WMDs against Iranian troops during the Iran-Iraq War of the 1980s and against a minority population in Iraq in 1988. In response to Iraq’s noncompliance with the commitments it made in the 1991 ceasefire the U.N. authorized economic sanctions against it. Despite the sanctions some claim that Iraq continued to defy the U.N. inspectors who were responsible for checking on Iraq’s progress in dismantling its WMD programs and relations between Iraq and the United States reached a critical level. In part Iraq’s reluctance to work closely with U.N. inspectors may have been a reaction to the U.S.’s response to the September 11 2001 terrorist attacks on New York City and the Pentagon. Iraq had nothing to do with the attacks but the attacks heightened the concerns of U.S. leaders about the dangers of nuclear weaponry in the hands of adversaries. Some members of the Bush Administration were convinced that Iraq was developing WMDs and the United States raised its concerns at the U.N. but did not request Security Council authorization for military action against Iraq to enforce the WMD terms of the 1991 ceasefire. U.N. authorization may not have been requested because the United States knew that the Security Council would not authorize the action; five members of the Security Council have veto power which is to say any one of them could have prevented the authorization from being passed. The United States claimed that a U.N. authorization was not necessary because the 1991 ceasefire agreement provided the necessary authority; this view was not widely shared. In 2003 the United States and several allies (the United Kingdom Australia and Poland) invaded Iraq to enforce the WMD provisions of the ceasefire?but even after defeating Iraqi military forces no WMDs were found. Setting aside your personal views of the Iraq War and its aftermath of violence compare and contrast the 1991 and 2003 military actions with respect to the roles of the United States the United Nations other international bodies and other states. Like your previous essay this one should have 500 to 750 words be word processed double-spaced edited spell-chekced and fully cited. Good essays will have an introduction a thesis statement topic sentences for each paragraph supporting evidence and a conclusion.

 

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Discuss the physiological myths about hunger and satiety and those  physiological factors that do contribute to hunger and satiety. 

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PSY 240 To Eat or Not To Eat — A+ Student!

You are a counselor for those suffering from eating disorders. Today, you have two different
group sessions: one consisting of clients with obesity issues, and one dealing with anorexia
issues. So that the clients feel more comfortable, you would like to first start the session by
explaining some of the physiological factors that cause people to eat or not eat. Then, you
will open the floor for questions from the group.
• Due Date: Day 7 [Individual] forum
• Write a 1,050- to 1,400-word paper in APA format containing the following:
1. Introduction: Act as the eating disorder counselor and introduce yourself
to the group. Provide a brief explanation about what you will be discussing
today.
2. Description of the physiological factors for hunger and satiety:
Discuss the physiological myths about hunger and satiety and those
physiological factors that do contribute to hunger and satiety.
3. Respond to the following questions proposed by the two different
groups:
o Lindsey asked: “My parents were both obese, is that why I am”?
o Robert asked: “My girlfriend and I eat together all of the time, so we eat
the same food and amounts of food, but she never gains weight like I
do. Why is that?”
o Nancy asked: “My mom says that I became anorexic because I’ve
been reading too many Cosmo magazines and want to look like those
girls. Maybe I did, but I really just don’t crave food. What do you think it
is?”
Tyra asked: “I don’t eat because every time I do, I just feel sick! Do you
know why this is?”

 

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Identify a facility in your area by looking on the Internet. Find out as much as you can about the facility including the types of services that it offers.

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Identify a facility in your area by looking on the Internet. Find out as much as you can about the facility including the types of services that it offers. Describe the facility in terms of size, organization, types of patients, and average length of stay. What type of facility is it? What types of licensure and accreditation do they have? Do they provide ambulatory care or acute care? Did your findings surprise you?

 

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