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Advocard [28]
4 years ago
14

Please hurry i need help.

Biology
1 answer:
Elanso [62]4 years ago
6 0

Answer:reproduction

Explanation: when the sperm and egg unite to form a single cell, the number of chromosomes is restored in the offspring. Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome.

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A needle-exchange program focused on a neighborhood with a high number of intravenous drug users is an example of _____ preventi
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Answer:

Secondary

Explanation:

There are several levels of prevention. You might confuse this with primary prevention. Primary prevention is preventing infection, so it has to be done before the patient caught the disease.

The needle-exchange program aims to reduce the spread of blood-borne disease(HIV, hepatitis, etc) from the multiple usages of the same needle. Since the disease already exists, this will be secondary prevention.

7 0
3 years ago
When an organism has died, the ratio of C-14 to C-12 _____ over time.
Mrrafil [7]
The answer is C. decreases.

C-14 and C-12 are carbon isotopes used to measure the approximate age of organic remains. C-12 is stable, and it does not break down into other elements over time. C-14 is not stable. It breaks down into N-14.

Organisms can incorporate C-14 into their bodies during the life. But when the die, C-14 is not incorporated anymore. After organisms' death, C-12 will remain stable, but C-14 will start to breaks down into N-14. So, it will be less C-14 and C-12 will remain the same. The ratio of C-14 to C-12 must decrease over time.
4 0
3 years ago
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Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called ________ ganglia.
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<h2>Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called ______ ganglia. A) intramural. B) collateral? Answer: Your Answer is going to be A! :D Happy Early Christmas!!! :D (!It Might be B but I don't know I think it's A!)</h2>

Explanation: Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called Intramural ganglia!!! Hope This Helps! Happy Early Christmas! :D

6 0
2 years ago
One important feature of modern classification systems is that they
sergiy2304 [10]
D. can incorporate new scientific discoveries

The current classification method relies upon many aspects when classifying an organism. Through the criteria set for the organisms' classifications, every organism finds a place. This way, if any new discoveries are made such as the excavation of a new fossil, the organism is easily placed into the existing system.
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Which lists only biotic factors in this environment?
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Snake cactus and rat because they are living organism
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