subject
Biology, 02.10.2019 04:50 maystrenko53

Question 1
according to fossil evidence, the evolution of eukaryotic cells occurred about years ago.

3.2 to 6.1 million

250 to 500 million

1.2 to 1.5 billion

3.5 to 3.8 billion

1 points
question 2
the protists include

heterotrophs.

autotrophs.

both a and b

none of the above

1 points
question 3
which of the following statements describes ciliates?

they have no cell walls.

they are unicellular.

they are heterotrophic.

all of the above

1 points
question 4
what do ciliates use small cilia for?

energy

locomotion

reproduction

all of the above

1 points
question 5
euglenoid chloroplasts are surrounded by membranes.

no

four

two

three

1 points
question 6
some autotrophic euglena species become when light levels are low.

inactive

heterotrophic

saprophytic

none of the above

1 points
question 7
red tides release into the ocean.

nutrients

carbon dioxide

oxygen

toxins

1 points
question 8
phylum amoebozoa traditionally included

amoebas.

radiolarians.

foraminiferans.

all of the above

1 points
question 9
are the most numerous unicellular algae in the oceans.

amoebas

golden algae

diatoms

none of the above

1 points
question 10
which of the following have numerous hair-like projections from their flagella?

diatoms

golden algae

water molds

all of the above

ansver
Answers: 1

Another question on Biology

question
Biology, 22.06.2019 02:30
The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community
Answers: 1
question
Biology, 22.06.2019 02:40
Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy  ยด    ยด    ยด    ยด  yy
Answers: 1
question
Biology, 22.06.2019 03:30
Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)
Answers: 1
question
Biology, 22.06.2019 04:30
In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?
Answers: 3
You know the right answer?
Question 1
according to fossil evidence, the evolution of eukaryotic cells occurred about ye...
Questions
question
Mathematics, 04.11.2019 17:31
question
History, 04.11.2019 17:31
question
Mathematics, 04.11.2019 17:31
Questions on the website: 13722363