I Have a list of possible answers, but am not to sure which one it is.

Question:The extinction of the dinosaurs has been associated with

Possible Answers:

a) a layer of soot containing iridium.

b) a meteor impact at the end of the Cretaceous that caused major cooling.

c) a crater in the Caribbean and coast of the Yucatan.

d) All of the above.

They believe, from geological surveys at the cretaceous level that major cooling over a wide area, destroyed the dinosaurs, (b).

Tick

Question:The organic soup in which the first cell is believed to have arisen probably contained.

Possible Answers:

a) algae and other microscopic organisms.

b) bubbling hot gases only.

c) amino and organic acids.

d) isolated atoms.

Question:The earliest forms of life on earth are found in rocks.

Possible Answers:

a) 4.6 billion years old.

b) 3.5 billion years old.

c) 1 billion years old.

d) 4 million years old.

e) 1 million years old.

Question:
Which of these gases was NOT in the primitive atmosphere?

Possible Answers:
a) water vapor

b) N 2

c) CO 2

d) oxygen

e) H 2

Question:
Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. This therefore.

Possible Answers:

a) suggests that a pattern of land bridges existed at different times in geological history.

b) suggests that the earlier plants and reptiles evolved while continents were joined but mammals radiated into diverse groups after separation.

c) suggests that the mammals evolved earlier while continents were joined but plants and reptiles radiated into diverse groups after separation.

d) is an unsolved puzzle probably due to the random nature of biological evolution.

e) casts serious doubts upon the theory of continental drift and fused land masses.

Question:
In a liquid environment, ____ molecules will automatically form droplets called liposomes.

Possible Answers:

a) phospholipid

b) nucleic acid

c) glucose

d) amino acid

e) protein

We don't do homework here. Look the answers up in your textbook.

I was not asking for anyone to do my homework. The questions that I posted are questions I got wrong on my biology 11 test and wanted to know what were the correct answers.

Bet the answers are still in your textbook.

I do NOT have a test book, I am doing online courses.

Thank- You for your response anyway.

My point is that the answer will be in your course materials. Your course has to have some sort of materials, right?

No it does it, if that were the case I would not be on this site nedding help. I have a site I answer the questions.

Im confused. You are taking a course that does not have any materials to learn... just tests? How are you supposed to learn the material? Osmosis? Lucky guessing?

Im not trying to be difficult... I swear.

Thank- You

No no I have a site that has reading material on the site, but once you pass a certain point and start/finish your test/exam there is no way of looking back at any material, therefore I have nothing to look at now except for the ones I got wrong, and I tried to just Google it, and it was not working, so I came here.

Ah - now I understand. Odd type of course...

A) phospolipids.

Liposome - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Liposome)

Thank you for taking the time to copy your homework to AMHD.
Please refer to this announcement: https://www.askmehelpdesk.com/finance-accounting/announcement-font-color-ff0000-u-b-read-first-expectations-homework-help-board-b-u-font.html

Well, I guess that's your responsibility to take down notes when you feel they are important, right? :confused:

Or at least, they could say which were the correct answers after the test.

I Have a list of possible answers, but am not to sure which one it is.

Question:The extinction of the dinosaurs has been associated with

Possible Answers:

a) a layer of soot containing iridium.

b) a meteor impact at the end of the Cretaceous that caused major cooling.

c) a crater in the Caribbean and coast of the Yucatan.

d) All of the above.

D. All of the above.

Question:The earliest forms of life on earth are found in rocks.

Possible Answers:

a) 4.6 billion years old.

b) 3.5 billion years old.

c) 1 billion years old.

d) 4 million years old.

e) 1 million years old.

b) 3.5 billion years

D
Oxygen was not present in the early atmosphere b ecause oxygen is a waste product produced by photosynthesizing organisms such as plants and cyanobacteria, which did not exist then.

Or ask the teacher, she/he probably would be pleased to answer. But, reading the book would be a good thing and good practice for the next test.

As you go through adult life, you won't always have a "help desk" available and it is good to learn now how to find things the hard way and determine the best answers on your own.

Hey dear u know only one reason for done that thing that temprature decreases so high temp adopted living being get died hehehhe
pramod