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nlexa [21]
3 years ago
14

Alligators in a Florida lake polluted by high levels of dioxins (chlorinated hydrocarbons) had lowtestosterone levels and failed

to reproduce. Scientists came to the conclusion that the dioxins were acting aswhich of the following?1. Endocrine disrupters2. Growth hormones3. Carcinogens4. Immune-system suppressors5. Mutagens
Biology
1 answer:
natka813 [3]3 years ago
5 0

Answer:

1. Endocrine disrupters

Explanation:

Endocrine disrupters are chemicals that alters or interrupts the normal functioning of the endocrine system that consists of several glands that produce hormones responsible for various functions such as metabolism, reproduction, growth, etc. When this interferes with the endocrine system, it can bring about many undesirable consequences, one of which is low testosterone levels as reported in the Alligators in Florida lake that is polluted by high levels of dioxins. These chemicals act as endocrine disrupters.

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Why do traits that give an organism a disadvantage exist during meiosis? Please be as descriptive as possible and write it in yo
Roman55 [17]

Answer:

Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.

The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.

Explanation:

Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.

6 0
3 years ago
Precipitation:
galina1969 [7]

returns freshwater to the earth

occurs after condensation

is roughly equal to the amount of evaporation

Explanation:

Precipitation returns fresh water to the earth, occurs after condensation and is roughly equal to the amount of evaporation.

The process of precipitation is a key component of the hydrologic cycle.

  • In the hydrologic cycle, precipitation follows condensation of water vapor in the atmosphere.
  • Precipitation often takes the form of rainfall and snow.
  • It is any product of condensation of water in the atmosphere that falls back under the influence of gravity.
  • In the hydrologic cycle, water leaves the surface of the earth in form of vapor as result of evaporation.
  • Most times , the amount of evaporation is roughly equal to that of precipitation.

learn more:

Biogeochemical cycle brainly.com/question/3509510

#learnwithBrainly

8 0
3 years ago
What is the cause of the hydranencephaly? Select one: a. Aqueductal stenosis b. Subaranchoid stenosis c. Overproduction of CSF d
Dennis_Churaev [7]

Answer:

The correct answer is d.

Explanation:

Hydranencephaly is a rare congenital anomaly characterized by the absence and replacement of the cerebral hemispheres by cerebrospinal fluid and necrotic remains, with preservation of the membranes (leptomeninges), within a skull of normal capacity and shape. It is the most severe form of cortical destruction cerebral bilateral and is considered an extreme form of porencephaly (focal cystic cavity). It mainly affects the territory of the internal carotid artery and middle cerebral artery, with preservation of the territories supplied by the vertebrobasilar arteries. The most accepted etiology is carotid vascular insufficiency, due to multiple causes (bleeding, placental thromboembolism, arteritis, vascular malformations, among others).

5 0
3 years ago
Explain what happens to animal cells if they are put in fresh water
neonofarm [45]
They will actually explode or burst

So What happens is the pure water outside has a high water potential while the cytoplasm inside the animal cell is a low water potential, water will diffuse down a water potential gradient through the semi-permeable membrane of the animal cell and cause the cell to swell (inflate like a fully-blown balloon), the result is that the delicate, elastic cell membrane<span> can't tolerate the internal pressure coming from the cytoplasm so it tears causing the cell to burst.</span><span>

</span>
6 0
3 years ago
Pituitary is to brain as thymus is to
Elenna [48]

Answer:

Explanation:

chest

7 0
2 years ago
Read 2 more answers
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