subject

Biology, 30.09.2019 12:30 seawu

According to most scientific models how many years ago did the first simple cells appear on earth?

ansver

Answers: 2

Show answers

Another question on Biology

question

Biology, 22.06.2019 11:00

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

Answers: 2

question

Biology, 22.06.2019 16:20

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

Answers: 1

question

Biology, 22.06.2019 20:40

Which of these is an example of structural protein in plants

Answers: 1

question

Biology, 22.06.2019 21:30

The bacteria in the human gut feeds on the food we eat and us break it down for better digestion. what does this exemplify? (a) predator-prey cycle (b) parasitism (c) mutualism (d) a disrupted food chain

Answers: 1

You know the right answer?

According to most scientific models how many years ago did the first simple cells appear on earth?...

Questions

question

Chemistry, 01.08.2019 08:10

Carbon tetrachloride contains one carbon and four chlorine atoms. for this compound 11.818 g of chlorine combine with 1.000 g of c-12. using this info...

question

Chemistry, 01.08.2019 08:10

How could you distinguish between diphenyl ketone (also called benzophenone) and benzaldehyde using ir only?...

question

Chemistry, 01.08.2019 08:10

Which conversion factor should you use first to calculate the number of grams of co2 produced by the reaction of 50.6 g of ch4 with o2?...

question

Chemistry, 01.08.2019 08:10

Which would be the more valued result: taking one proton from each nucleus in a sample of gold or adding one proton to each gold nucleus? 1. adding...

question

Mathematics, 01.08.2019 08:10

Anumber increased by 5 is equal to 34.find the number...

question

Mathematics, 01.08.2019 08:10

An item costs $330 before tax, and the sales tax is $23.10 . find the sales tax rate. write your answer as a percentage....

question

History, 01.08.2019 08:10

All of these were reasons why britain did not win the war against the american rebels except...

question

Biology, 01.08.2019 08:10

Explain how myofibrils are organized into a muscle?...

question

Chemistry, 01.08.2019 08:10

Hydrofluoric acid is used to etch grooves in glass because it reacts with the silica (sio2(s)) in glass. the products of the reactions are aqueous sil...

question

Biology, 01.08.2019 08:10

Ablood cell is placed into a solution which contains more solutes than the cytoplasm of the cell. the solute cannot travel across the cell membrane, b...

question

Chemistry, 01.08.2019 08:10

Abrownish haze that is a mixture of ozone and other chemicals, formed when pollutants react with each other in the presence pf sunlight...

question

Social Studies, 01.08.2019 08:10

About one in adult americans experiences a diagnosable mental illness...

question

History, 01.08.2019 08:10

Adifficulty facing cities with war industries was...

question

Mathematics, 01.08.2019 08:10

Afactory makes processors for use in computers. it is known that about 90% of the processors meet specifications. every week a sample of 18 processors...

question

Mathematics, 01.08.2019 08:10

Acar travels at an average speed of 68 miles per hour. how many miles does it travel in 5 hours and 15 minutes?...

question

Computers and Technology, 01.08.2019 08:10

Differentiate between radio waves and microwaves...

question

History, 01.08.2019 08:10

Explain why the christmas presents have such an impact on bailey and marguerite...

question

Business, 01.08.2019 08:10

Factors to consider when comparing credit cards are:...

question

Computers and Technology, 01.08.2019 08:10

If somecondition is true then do oneprocess do theotherprocess endif a. then b. while c. do d. else...

question

Biology, 01.08.2019 08:10

Adark purple flower is crossed with a white flower of the same species, and the offspring have light purple flowers. what type of inheritance does thi...

More questions: Biology Another questions

Questions on the website: 13722363