The categories of patterns of evolution are: genetics/molecular biology, direct observation of evolutionary change, the fossil record, homology/anatomy, and biogeography

Explanation:

Anatomy. Also known as Homology, is the study of homologous structures of species with similar physical features, as proof of direct descent and ancestry.
Molecular biology and Genetics. DNA and the genetic code reflects the shared ancestry of life, indicative of how species are related.
Fossil Records. Fossils register the existence of pre-existing species which are related to present-day species.
Biogeography. The geographic distribution of organisms on Earth, as well as their distinct features is an indicator of evolution and geological change.
Direct observation. Organisms with short lifespan can be observed as evolutionary cases.

8 0

3 years ago

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Two solutions will be prepared with the mixture of distilled water and stock solution of KMnO4 (10 mM). Give the correct volumes

Yanka [14]

Answer:

See the answer below

Explanation:

Recall that the law of dilution states that the number of moles before dilution must be equal to the number of moles after dilution.

Mathematically,

molarity x number of moles before dilution = molarity x number of moles after dilution.

For solution A: final molarity = 3 mM, final volume = 2mL, initial molarity of KMnO4 = 10 mM

Applying the equation:

10 x initial volume = 3 x 2

initial volume = 6/10 = 0.6

Hence, Tube A should be made with 0.6 mL of 10 mM KMnO4 stock and 1.4 mL of distilled water to give a solution of 2 mL 3 mM KMnO4.

For solution B:final molarity = 8 mM, final volume = 2 mL, initial molarity = 10 mM

10 x initial volume = 8 x 2

initial volume = 16/10 = 1.6

Hence, Tube B should be made with 1.6 mL of 10 mM KMnO4 stock and 0.4 mL of distilled water to give a solution of 2 mL 8mM KMnO4.

7 0

3 years ago

The phenomenon that describes the emission of electrons from a metal surface when light shines on it is the _____ effect.

Andrei [34K]

The phenomenon that describes the emission of electrons from a metal surface when light shines on it is the photoelectric effect.

Have a wonderful day! :D

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3 years ago

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AO3 – Analyse using table 1 the distribution of blood to the working muscles and other organs at rest and during exercise (4 mar

Pepsi [2]

Answer:

When at rest, most blood flows to other organs. But during exercise, most blood flows to the working muscles.

4 0

3 years ago