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KatRina [158]
3 years ago
15

What are some presumptive tests for blood?

Biology
1 answer:
luda_lava [24]3 years ago
8 0

Answer:

Luminol, leuchomalachite green, phenolphthalein, Hemastix, Hemident, and Bluestar are all used as presumptive tests for blood. In this study, the tests were subjected to dilute blood (from 1:10,000 to 1:10,000,000), many common household substance, and chemicals.

Explanation:

- Eijiro <3

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Is sickle cell anemia caused by genetic or environmental factors
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Genetic, geographic & cultural factors that cause sickle-cell anemia. It is important to note that even genetic diseases are caused by multiple social, environmental and biological factors. This is particularly true in the case of sickle-cell anemia, a genetically inherited blood disorder usually found in people with West African ancestry (PBS 2001).

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Why is it necessary for plants to have chloroplasts
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Answer: In some organisms, chloroplasts play a vital role in the photosynthesis process. The chloroplast receives sunlight's energy and converts it to sugars. In some organisms, chloroplasts play a vital role in the photosynthesis process.

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Structure such as the human tailbone or appendix that evolution has reduced in size because it is no longer used 2. study of the
yarga [219]
1. Structure such as the human tailbone or appendix that evolution has reduced in size because it is no longer used = d. vestigial structure

2. study of the similarities and differences in the structures of different species:
= g. comparative anatomy

3. structure that is similar in related organisms because it was inherited from a common ancestor: = c. homologous structure

4. study of the similarities and differences in the embryos of different species: study of the similarities and differences in the embryos of different species = j. comparative embryology

5. scientist who finds and studies fossils to learn about evolution and understand the past:
= i. paleontologist

6. mistaken idea of jean baptiste lamarck that evolution occurs through the inheritance of traits that an organism develops in its own lifetime: = h. inheritance of acquired characteristics

7. process by which a single species evolves into many new species to fill available niches:
= e. adaptive radiation

8. relative ability of an organism to survive and produce fertile offspring: = k. fitness

9. structure that is similar in unrelated organisms because it evolved to do the same job, not because it was inherited from a common ancestor: = f. analogous structure

10. study of how and why plants and animals live where they do: = a. biogeography

11. process in which organisms evolve traits useful to humans because people select which individuals are allowed to reproduce and pass on their genes to successive generations:
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8 0
3 years ago
How do you calculate magnification on a light microscope?
aniked [119]

Answer:

In order to ascertain the total magnification when viewing an image with a compound light microscope, take the power of the objective lens which is at 4x, 10x or 40x and multiply it by the power of the eyepiece which is typically 10x.

5 0
3 years ago
I will make you brainliest
dolphi86 [110]

I am going to have to say algae and fungus.

Hope this helps, if not, comment below please!!!

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3 years ago
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