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ASHA 777 [7]
3 years ago
5

"The drug naloxone can be used to counter the effects" of a heroin overdose by binding to opioid receptors and preventing heroin

from binding to them. In this example, naloxone is an ___________________ at opioid receptors and heroin is an _______________________ at opioid receptors.
Biology
1 answer:
Verizon [17]3 years ago
6 0

Answer:

Naloxone is an antagonist at opioid receptors and heroin is an agonist at opioid receptors

Explanation:

An agonist is a substance that binds to a receptor and causes a biological reaction. In this case, heroine binds to opioid receptors. An antagonist blocks the reaction from the agonist, impeding the receptor's activation. Agonists and antagonists work for specific receptors, and for an antagonist to block an agonist they must bind to the same receptor, like naloxone does with heroin. Giving an antagonist that binds to one receptor and and agonist that binds to a different one means that the antagonist will have no effect.

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You have a plant with yellow seeds, which express a dominant phenotype. How would you determine the plant's genotype? Conduct a
Archy [21]
The answer is <span>Conduct a test cross with a purebred recessive plant. 

</span>

Test cross is the cross between an organism with unknown dominant genotype and an organism with known recessive genotype.

<span>Since dominant trait results from a dominant allele, the test cross can determine if an unknown genotype is heterozygous and homozygous dominant. </span>

If A is dominant allele, and a is recessive allele, then AA is dominant homozygote, Aa is a heterozygote, and aa is recessive homozygote.

<span>According to the Punnett square, if all of the offspring are heterozygote (Aa), then unknown genotype is dominant homozygous (AA). If half of the offspring are the heterozygote, and the other half are recessive homozygote, then the unknown genotype is heterozygote (Aa).</span>

6 0
3 years ago
A state is looking to reduce the cost of transportation, which uses 7.10×10^14 BTUs per year. Currently the cost of 10^6BTUs is
Ilia_Sergeevich [38]

Answer:

$ 284 million dollars

Explanation:

If the energy usage of all transportation is 7.10 × 10¹⁴ BTU per year, if their efficiency is to increase by 20%, The new energy usage will be (1 + 20/100)7.10 × 10¹⁴ BTU per year = (1.02)7.10 × 10¹⁴ BTU per year = 7.242 × 10¹⁴ BTU per year.

The energy saved is thus the difference 7.242 × 10¹⁴ BTU per year - 7.10 × 10¹⁴ BTU per year = 0.142 × 10¹⁴ BTU per year.

Since 10⁶ BTU costs $ 20.00, then,

0.142 × 10¹⁴ BTU costs 0.142 × 10¹⁴ BTU × $ 20.00/10⁶ BTU = $ 2.84 × 10⁸ per year = $ 284 million dollars

So the state saves $ 284 million dollars in one year

8 0
3 years ago
Medicare and other insurance pay amount for inpatient outpatient claims. In your opinion, is this the right thing for insurance
Nina [5.8K]

Answer:The insurance that pays first (primary payer) pays up to the limits of its coverage. The one that pays second (secondary payer) only pays if there are costs the primary insurer didn't cover. ... If your employer insurance is the secondary payer, you may need to enroll in Medicare Part B before your insurance will pay.

Explanation:

8 0
3 years ago
Why are all bacteria classified as prokaryotes?
ahrayia [7]

Answer:

Prokaryotes are simple cells that lack a nucleus or membrane-bound organelles. A nucleus is a type of organelle that holds DNA. In prokaryotes, however, their DNA floats in the cytoplasm in a nuclear region rather than being contained in a nucleus.

Explanation:

6 0
3 years ago
Read 2 more answers
An unfertilized egg from a female Komodo dragon may develop directly into a young Komodo dragon. This is an example of
scoray [572]

asexual reproduction

One parent cell is needed

The young Komodo dragon will be a girl and look like its mother.

3 0
3 years ago
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