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aleksley [76]
3 years ago
12

You are the first responder to a scene that may contain hazardous substances. what should you do first?

Biology
1 answer:
andrew11 [14]3 years ago
8 0
The first things that should be done would be to ensure that you yourself are aware of the hazardous materials that are present, protect yourself, and call for personnel. Hope this helps!
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Magma rises towards the earth's crust as lava and cools down and crystallizes to form rocks. true or false help
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<em> </em><em>I </em><em>think</em><em> </em><em>the </em><em>answer</em><em> is</em><em> True</em>

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2 years ago
4.010<br> Mutations can be caused by<br> a. radiation<br> b. chemicals<br> C. both a and b
Ugo [173]

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Mutations can be caused by radiation

if my answer helps you than mark me as brainliest.

6 0
3 years ago
Use the double-stranded DNA molecule below to answer the following questions. The first pair of nucleotides (bolded) contains th
krok68 [10]

Answer:

The correct answer is 2. 5'-AUGUCAGGUACGCCACAU-3'

Explanation:

The template strand for transcription is 3'-TACAGTCCATGCGGTGTA-5 and RNA polymerase will add complementary mRNA sequence against this strand in the opposite direction i.e., 5' to 3' direction.

In RNA, A(adenine) makes complementary base pairing with U(uracil), not with T(thymine) and the rest of the base-pairing is same as in DNA. Therefore the correct mRNA produced from the transcription of this DNA molecule by the help of RNA polymerase is 5'-AUGUCAGGUACGCCACAU-3'.

Then this mRNA sequence will be used by ribosomes to synthesize proteins during the translation process.

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4 years ago
Beekeepers and scientists are puzzled and troubled by a decline in bee populations around the world. what would you predict as a
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The most likely consequence of the widespread lack of bees is loss or reduction of food. Majority of food depends on pollination and bees are major pollinators in the ecosystem, playing an essential role in food production among different type of plants. Bee’s declining population is mostly associated to excessive use of pesticides or toxicants in industrial agriculture as well as presence of different parasites or pathogens and even climate change.
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3 years ago
Describe the similarities between polar and nonpolar steroid hormones.
Korolek [52]

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Hormones are substances produced by glands (or organs) that regulate bodily functions and behavior. Steroid hormones are one type that are chemically similar to each other, but may have different biological functions. For example, the adrenal glands produce an anti-inflammatory steroid similar to cortisone.

<h2>Please mark me as brainliest</h2>

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3 years ago
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