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Anni [7]
3 years ago
6

What do scientists use to mark boundaries in the geologic time scale?

Biology
1 answer:
tekilochka [14]3 years ago
3 0

Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.

Explanation:

Geological time starts with Precambrian time.

Geologically, time is divided between the Precambrian era and present time into era.

The three eras are Paleozoic era, Triassic period and Cenozoic era.

Era is further divided into periods.

Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.

Geologic scale is the record of events in earth's history and evolution.

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A recipe for a cake calls for both liquid and dry ingredients. If you are following the recipe, how will the order in which you
Nookie1986 [14]

It will have no effect because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.

<h3>Effect occurs on mass</h3>

The order in which we add the ingredients do not affect the mass of the batter because the order in which ingredients are mixed will not change the fact that matter cannot be created nor destroyed.

The mass of the batter remains the same due to the incorporation of same quantity of ingredients so we can conclude that option A is the right answer for this question.

Learn more about matter here: brainly.com/question/3998772

8 0
2 years ago
Read 2 more answers
A cell come a certain organism has 64 individual, or 32 pairs, of chromosomes. Which of these can you draw?
Dmitriy789 [7]

Answer:

B. The cell cannot be a human

Explanation:

Humans have 23 pairs of chromosomes, or 46 individual chromosomes. Mutations in humans usually cause there to be a single extra chromosome, or a single missing chromosome. A mutation would not cause there to be 64. So, A cannot be true. Prokaryotic cells usually have one chromosome, not 64, so C cannot be true. D cannot be assumed as you cannot tell if there is uncontrolled cell growth. Therefore, the answer would be B.

8 0
2 years ago
The traits of freckles is dominant and represented by a no freckles is recessive and represented by a
lara31 [8.8K]

Complete question:

You will find the complete question in the attached files, due to technical problems

Answer:

This conclusion is incorrect. Only half of the progeny will have a dominant and a recessive allele, Aa. The other half will carry two dominant alleles, AA.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
3 0
2 years ago
True or False: New DNA is copied from existing DNA
ehidna [41]

Answer:

True.

Explanation:

Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. To accomplish this, each strand of existing DNA acts as a template for replication.

5 0
3 years ago
Membrane-bound organelles are not found in the cells of?
lord [1]
<span>A) bacteria. Membrane-bound organelles are found in eukaryotic cells. However, bacteria are prokaryotic, meaning that they do not have membrane bound organelles.</span>
5 0
3 years ago
Read 2 more answers
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