Biology, 03.02.2020 13:45 Faber9714

Question 26

certain types of atoms break down at a known rate. scientists can measure the amounts of the broken down products present in a sample to calculate its age. what is this technique called?

natural selection

the fossil record

speciation

radiometric dating
2 points
question 27

during which era did plants first appear on land?

cenozoic

mesozoic

paleozoic

precambrian
2 points
question 28

how were multicellular organisms developed on early earth?

eukaryotes began grouping together to develop multicellular organisms

cyanobacteria released oxygen molecules into the air creating new multicellular organisms

prokaryotes combined to form new multicellular organisms

prokaryotes combined with cyanobacteria to develop multicellular organisms

Answers: 2

Show answers

Another question on Biology

Biology, 21.06.2019 23:00

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

Answers: 1

Answer

Biology, 22.06.2019 05:00

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Answers: 1

Answer

Biology, 22.06.2019 09:30

2. does the given statement describe a step in the transformation of the graph off(x) = x2 that would result in the graph of g(x) = -5x + 2)? a. the parent function is reflected across the x-axis. o yes nob. the parent function is stretched by a factor of 5. yes noonc. the parent function is translated 2 units up.o yes

Answers: 2

Answer

Biology, 22.06.2019 16:00

Which type of organism is a caterpillar

Answers: 1

Answer

You know the right answer?

Question 26

certain types of atoms break down at a known rate. scientists can measure th...

Questions