Concept 2 Multiple Choice (2pts each)

Biology

2 answers:

babunello [35]3 years ago

4 0

Molecule dddddddddddddd

kirill [66]3 years ago

4 0

It is a molecule because you can already cross out cell and matter and atom.

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A science classs is studying an organism. Using a microscope, the class observed that the cells have nuclei and chloroplasts. In

const2013 [10]

Answer:

Eukarya

Explanation:

According to the given information, the observed cells have nuclei and chloroplasts. The presence of a well-defined nucleus and other membrane-bound organelles such as chloroplasts is a feature of eukaryotic cells. All the eukaryotic organisms are assigned to the Domain Eukarya. Therefore, the observed cells belong to the domain Eukarya. Due to the presence of chloroplasts in them, these cells may belong to the kingdom Plantae of domain Eukarya. Domains Archaea and Bacteria include prokaryotic organisms.

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3 years ago

What is An example of dehydration synthesis

nekit [7.7K]

Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. When you see the word dehydration, the first thing that may come to mind is 'losing water' or 'lacking water.' ... Dehydration synthesis is classified as a type of chemical reaction.

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3 years ago

The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and

TiliK225 [7]

Explanation:

The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and

Archaebacteria

6 0

3 years ago

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3. What is crossing over? When does it occur during meiosis? Why did you have difficulty modeling this element of meiosis using

FrozenT [24]

Crossing over happens in Meiosis 1 only. In Prophase 1 a cells chromatin (chromatin = chromosomes that have not condensed yet) condense and pair up forming homologous chromosomes (paired = XX (2 chromosomes together)). When this happens segments/ alleles of the chromosomes pairing up swap over. This creates genetic diversity as each chromosome is different, it has parts from its pair. This leaves every chromosome unique and individual.

I hope this helps, sorry some of the vocab is rather technical. By the way I would suggest watching the 'Crash Course: Meiosis' on YouTube, this really helped me when I was learning this topic. :D