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Reika [66]
3 years ago
11

This microwave is heating up a cup of hot cocoa. The microwave uses what type of thermal energy transfer? Question 19 options: c

onduction convection radiation. please help.
Biology
1 answer:
Nady [450]3 years ago
3 0

Answer: conduction

Explanation: transfers heat energy through gases or liquids.

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The antibiotic penicillin is isolated from
kykrilka [37]

The antibiotic penicillin is isolated from <u><em>Penicillium notatum</em></u> fungi

Penicillin was first discovered in 1928 and was used at St. Mary's Hospital, London, by Alexander Fleming to heal wounds due to its antibacterial properties.

Explanation:

Fungi and bacteria usually produce antibiotics (as secondary metabolites) for defense mechanism. They do so to limit competition for resources with other neighboring fungi or bacteria in their environment.  This is why when a fungus or bacteria establishes itself in an environment, you hardly see other fungi or bacteria types growing in their vicinity.

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4 0
3 years ago
The rate of primary productivity is equal to the rate of secondary productivity.
podryga [215]
B false, every time it drops by a power of 10
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3 years ago
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According to Darwin’s theory of evolution, how are the finches that live on the Galapagos Islands similar to members of a family
Elis [28]

Answer: All of the finches share common ancestors

Explanation:

4 0
2 years ago
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Why does the mass of a substance remain the same after a chemical reaction
11111nata11111 [884]

Answer:

Even in a chemical reaction when atoms interact and create new products, mass is conserved. This is because the new substances created are composed of atoms that were present in the reactants. The atoms from the reactants come apart, rearrange, and re-bond in a different arrangement to form the products.

7 0
2 years ago
Which of these is the primary site of protein synthesis? mitochondria cytoplasm nucleus ribosomes
Murrr4er [49]

Answer:

A. Ribosome

Explanation:

Ribosome is a sub cellular structure, that is involved in protein synthesis.

Mitochondria is a sub cellular structure, where cellular respiration takes place, therefore it is called the energy house of the cell.

Cytoplasm is a jelly like structure in which sub cellular structures are found.

Nucleus is the main part of the cell in which all cellular activity is controlled by.

It contains DNA and RNA.

Nucleus is mostly known for it's thread like structure that contains hereditary information which is passed from parents to offspring.

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