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coldgirl [10]
3 years ago
14

Trilobites are index fossils because they ____.

Biology
2 answers:
Dmitrij [34]3 years ago
6 0
The correct answer is letter D). all of the above. Trilobites are index fossils because they changed slowly through time. They  also exhibit specific characteristics and lived over large areas of the world.
Ierofanga [76]3 years ago
4 0

Answer:

d. all of the above

Explanation:

Trilobites are an extinct class of marine arthropods, having been one of the most frequent fossil groups in the period between the Cambric and the Devonian, and are at this time still quite biologically diverse. Trilobite fossils are considered index fossils because they change slowly over time, exhibit specific characteristics and have lived in large areas of the world.

Index fossils refer to an organism that has had a wide geographical distribution in the past, although it has lived for short periods of time, and whose remains have not only been conserved in abundance but are also easy to identify.

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Llana [10]

Answer:

Explanation:

they capture sunlight from their thylakoids, which are disk like shapes inside the Chloroplasts to turn into glucose in two stages.

2 stages

1. light-dependent reactions

-  light energy -> ATP + NADPH

2. Calvin Cycle

- ATP + NADPH -> Sugar

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4 years ago
Answer the following questions:
Dmitrij [34]
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. Meselson and Stahl grew cells in media that contained different isotopes of nitrogen (15N or 14N) so that the DNA molecules pr
vlabodo [156]

Answer:

a. The apparatus that was used to distinguish heavy DNA from the light ones were the centrifuge tubes. The samples of DNA gathered are placed in the centrifuge tubes comprising cesium chloride. The light and the heavy DNA get distinguished on the basis of density after performing high-speed centrifugation for the duration of two days.  

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c. The conservative model for the replication of DNA was ruled out definitively by performing density gradient experiments.  

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8 0
4 years ago
Complete The Following Analogy
Alexus [3.1K]
B is the correct answer
4 0
3 years ago
What is an adaptation of reptile kidneys?
Ivanshal [37]

Answer:

Adapted to conserve water.

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Living on land means limited access to drinking water, so reptiles' kidneys have adapted. They conserve water by producing less urine in more concentrated forms.

Hope this helps!

4 0
3 years ago
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