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vredina [299]
3 years ago
12

Why is it so difficult to get to the heart during open heart surgery?

Biology
1 answer:
drek231 [11]3 years ago
6 0
This is because it has many parts, arteries, and tubes that pass blood around the body. It is hard because it has many parts which are difficult to be cut open. Hope I helped!
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Which best describes the interaction between autotrophs and heterotrophs?
nekit [7.7K]
Heterotrophs eat Autotrophs & depend on them for their energy supply

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8 0
3 years ago
PLEASE HELPP!
NISA [10]
Answer is D.

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8 0
3 years ago
If I dont get an answer for this ima be highly upset​
Free_Kalibri [48]

Answer:

Cold water can hold more dissolved oxygen than warm water. In winter and early spring, when the water temperature is low, the dissolved oxygen concentration is high. In summer and fall, when the water temperature is high, the dissolved-oxygen concentration is often lower.

Explanation:

4 0
3 years ago
What does paleontology, biogeography, embryology, and anatomy reveal bout evolution
Ugo [173]

Paleontology deals with fossils and helps in learning the changes of living organisms in sequence.

Biogeography deals with the distribution of species across the mother earth.

Embryology deals with the study of the similarities and difference that exists in the embryos of different species or organisms.

Anatomy deals with the study of the similarities and difference that exists among different species or organisms.

<u>Explanation: </u>

As an organism dies, the remaining of these organisms will be buried in soil. These are fossils. Paleontology supports evolution with the information that are related to the fossils, footprints etc. With these we can study the evolution of organisms and also the changes they undergo. There are some technologies like radiometric dating that can be used for the determination of these rocks and fossils ages.

Charles Darwin suggested that the evolution of species were form their ancestor. Biogeography supports evolution by explaining about the distribution of different species over the earth. Embryology and Anatomy supports evolution by describing about the similarity and difference in the species of living organisms. Embryology deals with the embryos and anatomy deals with the structure.

8 0
3 years ago
which is true ? A.All organisms obtain water through food B.some substances must be dissolved in water before they can be used C
tankabanditka [31]
B. some substances must be dissolved in water before they can be used
6 0
4 years ago
Read 2 more answers
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