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Nataly_w [17]
3 years ago
5

Why are fossils important?

Biology
2 answers:
serious [3.7K]3 years ago
8 0

They teach us what happened in Earth before we arrived. For example, if we had never found any dinosaur fossils, we would have no idea what happened. Fossils show us ancient life and what it was like back then.


Please give me brainliest ^.^

grandymaker [24]3 years ago
6 0

Fossils help scientists learn about and discover ancient lifeforms that have died and fosilised. They also may help us date other fossils and rocks that are hidden deep in the earth. finding similar fossils of animals on different continents helped support the continetal drift theory, which became the theory of plate tectonics!

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Two cell divisions mitosis or meiosis
Troyanec [42]
Cell division is the process by which a parent cell divides into two or more daughter cells.[1]Cell division usually occurs as part of a larger cell cycle. In eukaryotes, there are two distinct types of cell division: a vegetative division, whereby each daughter cell is genetically identical to the parent cell (mitosis),[2] and a reproductive cell division, whereby the number of chromosomes in the daughter cells is reduced by half to produce haploid gametes(meiosis). Meiosis results in four haploid daughter cells by undergoing one round of DNA replication followed by two divisions. Homologous chromosomes are separated in the first division, and sister chromatids are separated in the second division. Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle. Both are believed to be present in the last eukaryotic common ancestor.

Prokaryotes (bacteria) undergo a vegetative cell division known as binary fission, where their genetic material is segregated equally into two daughter cells. All cell divisions, regardless of organism, are preceded by a single round of DNA replication.

For simple unicellular microorganisms such as the amoeba, one cell division is equivalent to reproduction – an entire new organism is created. On a larger scale, mitotic cell division can create progeny from multicellular organisms, such as plants that grow from cuttings. Mitotic cell division enables sexually reproducing organisms to develop from the one-celled zygote, which itself was produced by meiotic cell division from gametes. After growth, cell division by mitosis allows for continual construction and repair of the organism.[3] The human body experiences about 10 quadrillion cell divisions in a lifetime.[4]

The primary concern of cell division is the maintenance of the original cell's genome. Before division can occur, the genomic information that is stored in chromosomes must be replicated, and the duplicated genome must be separated cleanly between cells.[5] A great deal of cellular infrastructure is involved in keeping genomic information consistent between generations.




8 0
3 years ago
Read 2 more answers
the large influx of mononuclear cells into the lungs plays a role in the formation of infection sites called
melomori [17]

The development of structured structures known as tubercles is tuberculosis.

<h3>Which four forms of infections are there?</h3>

Infections frequently occur. We've probably all experienced at atleast one at some point, from COVID-19 to ear infections and also the flu. Sepsis can be brought on by bacterial, fungal, viral, or parasitic illnesses.

<h3>What brings about an infection?</h3>

Whenever bacteria taken into the body, multiply, & trigger a response in the body, an illness results. An infect needs to happen in three different ways: Source: Ecologies of infectious (germ) pathogens   A individual who's really susceptible but who has a point of entry for germs.

To know more about Infection visit:

brainly.com/question/9260382

#SPJ4

4 0
1 year ago
The life activity that gets rid of waste is called
ArbitrLikvidat [17]

Answer:

CORRECTION C.) EXCRETION

////B.) Digestion is the correct answer

6 0
3 years ago
Read 2 more answers
Consider the classification levels of a honey bee.
frez [133]

Answer:

Insecta

Explanation:

The classification levels are the following from broadest to the most specific:

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

In your selection it is listed in that order:

Domain   --- Eukarya

Kingdom --- Animalia

Phylum  --- Arthropoda

Class     --- Insecta

Order    --- Hymenoptera

Family   --- Apidae

Genus   --- Apis

Species --- Mellifera

When you name the organism, we use the two name or binary naming system, getting the genus and the species. So the scientific name of the honey bee is: Apis mellifera

4 0
3 years ago
Read 2 more answers
The frog population of the mangrove wetland declined from Year 0 to Year 4 and increased in Year 6. Which statement most likely
Scorpion4ik [409]

Answer:

I can’t see the answer choices. I would like to guess that it would either be natural selection, or something to do with limited natural recourses.

Brainliest? I’m trying to rank up. Thank you sooo much.

3 0
3 years ago
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