subject

Biology, 05.12.2019 22:31 FoxGirl1971

Which organisms produce about half of the oxygen on earth?
o
a. humans
o b. rocks
o c. cows
d. plants
submit

ansver

Answers: 1

Show answers

Another question on Biology

question

Biology, 22.06.2019 02:00

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service

Answers: 3

question

Biology, 22.06.2019 03:30

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Answers: 1

question

Biology, 22.06.2019 09:00

Which of these is not a nucleotide base found in dna?

Answers: 1

question

Biology, 22.06.2019 12:30

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Answers: 3

You know the right answer?

Which organisms produce about half of the oxygen on earth?
o
a. humans
o b. rocks...

Questions

question

Chemistry, 01.07.2019 01:00

What is true about a solution of 1.0 m hf? hf has a higher [oh-] than a solution of 1.0 m hcl. hf has a lower ph than a solution of 1.0 m hcl. hf has...

question

Mathematics, 01.07.2019 01:00

Simplify the following expression (30/45g+/9g+7)...

question

History, 01.07.2019 01:00

The geographical dividing line between the tidewater and the piedmont in virginia was known as a(n)...

question

English, 01.07.2019 01:00

Which sentence is written in inverted order? a. we began our hike early in the morning. b. in the trees above sang a choir of birds. c. the cool bree...

question

Mathematics, 01.07.2019 01:00

Simplify the following expression (30/45g+/9g+7)...

question

Mathematics, 01.07.2019 01:00

Write the standard form of the line that passes through the given points. include your work in your final answer. type your answer in the box provided...

question

Biology, 01.07.2019 01:00

How do the number of chromosomes occur in higher organisms? give an example....

question

Mathematics, 01.07.2019 01:00

Charlie bought an airplane ticket for $288.00. the tax on the ticket was 7.5%, and he had to pay an additional $26 in fees. which of the following sho...

question

Mathematics, 01.07.2019 01:00

Simplify: 7.2(2.8r – 4.5s) + 9.34r – 1.25s anyone who answers will get 5 stars...

question

Mathematics, 01.07.2019 01:00

Acity has 5 new houses for every 9 old houses. if there are 45 new houses in the city, how many old houses are there?...

question

Mathematics, 01.07.2019 01:00

Simplify the following expression (30/45g+/9g+7)...

question

Health, 01.07.2019 01:00

1) which health component describes the ability to deal with stressa)physical healthb)mental and emotional healthc)social healthd)all of the above2) w...

question

Mathematics, 01.07.2019 01:00

Isi drilled a hole that is 5/9 inch wide. she has a screw that is 5/6 inch wide. is the hole wide enough to fit the screw...

question

English, 01.07.2019 01:00

Read the sentence. i told them how surprised and excited i was to have my painting selected, especially since i’d felt so incompetent at the beginning...

question

Mathematics, 01.07.2019 01:00

What is the units digit of the sum of 1! +2! +3! n! when n=2019. include an explanation and what a unit digit is....

question

Chemistry, 01.07.2019 01:00

How do you write electron configuration? just use sulfur as an example...

question

English, 01.07.2019 01:00

Which is the best way to combine sentences 1 and 2...

question

Mathematics, 01.07.2019 01:00

Given f(x) = 6x - 4 / 2x + 1 find the inverse function , f ^ - 1 (x) , f ^ - 1 (x) =...

question

Mathematics, 01.07.2019 01:00

I've been quite confused with these two questions, i'd be extremely grateful if anyone could answer and explain them to me!...

question

Mathematics, 01.07.2019 01:00

Write a response to the following statement: "every number is a complex number." make sure to include whether you agree or disagree with the statemen...

More questions: Biology Another questions

Questions on the website: 13722367