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Andreas93 [3]
4 years ago
10

Which primary vector helped carry zebra mussels into the Great Lakes? A. wood boxes B. fish C. fungus D. ship ballast E. birds

Biology
2 answers:
Finger [1]4 years ago
7 0

I'm pretty sure your answer should be D. Ship Ballast. Hope this helps! =^-^=

adelina 88 [10]4 years ago
3 0

Answer:

D. Ship ballast

Explanation:

Zebra mussels are the invasive species that have adaptive features to allow them to invade the new ecosystems. They have floating larva that can be transported along with running water. Also, the adult form of zebra mussels have ability to attach themselves to various substrates such as boats and ship ballasts. The primary factor for introduction of the species in Great Lakes is attachment of the species to the ship ballast that enter the lake.

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The parents of a 13-year-old boy with a sore throat for a week, vomiting for two days, swollen lymph glands, and stiff achy join
telo118 [61]

ANSWER: MITRAL VALVE STENOSIS

EXPLANATION:

The child have the risk of having MITRAL VALVE STENOSIS. It is also referred to as mitral stenosis.

Mitral valve stenosis occurs as results of the mitral valve opening narrowing. Which effect to less blood flowing through it.

The mitral valve is located between two chambers (the atrium and the ventricle) on the left side of your heart.

However, Mitral valve stenosis can lead to different health issues, including blood clots, difficulty breathing, fatigue, and heart failure.

Mitral valve stenosis is specifically caused by rheumatic fever (a childhood disease). This rheumatic fever occurs has a result of the body's immune response to an infection associated with the streptococcal bacteria.

Acute rheumatic fever affects the joints and the heart greatly. It causes joints inflammation temporarily and in severe case causes chronic disability.

Nevertheless, this cardiac complication have treatment and it is based on whether the affected individuals shows symptoms. Medications like blood thinners or anticoagulants (to reduce the risk of blood clots), diuretics, antiarrhythmics (to cure abnormal heart rhythms), beta-blockers (to slow your heart) etc, are being administered based on the level of the complication.

5 0
4 years ago
Nasim is driving on a snow-covered road, and her car begins to slide. The quick behavioral response and the increased heart rate
Luda [366]

Answer:

1. sympathetic

2. parasympathetic

Explanation:

The sympathetic division of the autonomic nervous system triggers the release of stress hormones from adrenal medulla under emergency conditions. There is a series of physiological responses such as increased heart and breathing rate, an increased flow of blood to skeletal muscles, dilation of pupils, etc. These events helped Nasim to fight the stress conditions.  

Once she was relieved, the parasympathetic system is activated that shut down the physiological responses generated by sympathetic division. It slows down the breathing and heart rate and triggers the digestion and absorption of nutrients to restore the energy level of cells.

3 0
3 years ago
What role does animal agriculture play in our state and local economy? Explain and support with specific examples.
Romashka [77]

Answer:

Kindly check explanation

Explanation:

Animal agriculture simply refers to the extensive use of various cattles , birds and other animals and their derivative in contributing to the growth and development of the economy and it's populace. In the most evident of cases and scenarios, we can establish that animal agriculture plays important role in the economy which include but not limited to being an integral source of revenue for the state and local economy, provision of jobs and subsequent reduction in level of unemployment, an important source of protein such as meat, fish, poultry birds, eggs and so on.

Even in the most developed of economies, agriculture continues to be a main point of focus in most countries, contributing immensely to the GDP of the nation. Animal agriculture could be practiced from a relatively low scale level which has made it easy for individuals to be self employed and a resulting reduction in level of unemployment.

3 0
2 years ago
The discovery that the moon is similar in composition to the outer portions of the earth most supports the
lorasvet [3.4K]

Answer:

It most suppoet tge impact theory.

Explanation:

The his impact theory or the big splash is one of the accepted theories of tge moon and it states that the moon or luna and explain the origin of the moon that a Mars sized object planetestimal collided with the the proto Earth and the ejecta debris joined together by gravitational force which is the moon and it's orbit the Earth. The moon have similar composition to the outer portion of the Earth.

4 0
3 years ago
Read 2 more answers
Cholesterol transported from the cells to the liver by HDL can then be used to synthesize bile.
Leto [7]

Answer:

True

Explanation:

Cholesterol is a lipid organic molecule which is the modified steroid form. The cholesterol is secreted by the animal cells as it a constituent of the animal cell membrane.

The cholesterol easily dissolves in the blood and is hydrophobic in nature so cholesterol is transported into the blood plasma in the form of lipoprotein complex.

There are four types of lipoproteins formed on the basis of their cholesterol density which are: VLDL, LDL, IDL and HDL.

HDL or high-density lipoprotein transports the cholesterol to the hepatic cells of Liver where the Liver enzymes convert the cholesterol to the bile acid and thus bile juice is excreted with bile.

Thus, True is the correct answer.

6 0
3 years ago
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