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Fofino [41]
4 years ago
12

How does radiometric dating help scientists pinpoint the age of a fossil?

Biology
1 answer:
natima [27]4 years ago
3 0
Some isotopes of the atoms that make up everything on earth (including fossils) become vary unstable and emit radiation. By measuring the amount of radiation left in an object, we can measure how long that object has existed.
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Which process could occur in maple trees to decrease the chromosome number in pollen cells from 52 down to 26?
andrew11 [14]

Answer:

Meiosis

Explanation:

In a process of meiosis a sing cell divides twice to produce four daughter cells which contains half the amount of. genetic information These cells are sex cells. These four daughter cells consists of half the number of chromosomes of the parent so they are haploid. This is the reason in maple tree the chromosome decreased from 52 to 26.

4 0
3 years ago
A client develops acute appendicitis. prior to arrival to the hospital, the client attempted self-care at home. which self-care
steposvetlana [31]

<span>The client takes a small volume enema that leads the appendicitis rapture.   If not sure of the symptoms, take your temperature every two hours and keep a record for your doctor. The appendix must be removed (appendectomy) either through a small incision or with a special instrument (laparoscope). Surgery should not be delayed more than a few hours.</span>

6 0
3 years ago
Which organelles do scientists believe originated by symbiotic relationships between primitive eukaryotes and certain prokaryote
AnnyKZ [126]
The organelles  that scientists  believed  that  it originated  by  symbiotic  relationships  between   primitive  eukaryotes  and  certain  prokaryotes   is  known as chloroplast. Chloroplast  contain   chlorophyll  which  capture  energy  from sunlight  that  is  used   in  photosynthesis .This  energy  is  converted  to  ATP  and NADPH
7 0
4 years ago
Consumption of milk from goats which have grazed on lupine plants containing the alkaloid, anagyrine, may cause a. numbness of t
MrRissso [65]

Answer:

Option (d).

Explanation:

Anagyrine is ab alkaloid that is mainly responsible for the crooked calf syndrome. This chemical effects have been tested on the cattle, goats and sheep.

The researchers has found that anagyrine can work as a teratogen. This chemical can cause birth defects in an individual. The angyrina when ingested by woman causes birth defect during early pregnancy.

Thus, the correct answer is option (D).

8 0
4 years ago
A
mihalych1998 [28]
Well the flu is a virus. Knowing it’s a virus we know they multiply by entering a cell and passing over there rna then converted to be dna and creating other versions of them selfs until cytolysis occurs meaning the cell explodes with these new viruses and do the same with other cells. Since these dna conventions to create protein body parts of virus means there’s a increase in chemical reactions in the body and enzyme production. Also since your body has an immune system it can sense these antigens from the virus’s and cause increase in certain white blood cells to come in and kill these viruses and cells. In essence chemical and enzyme reactions increase. To survive.
3 0
3 years ago
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