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trapecia [35]
3 years ago
11

Reactant - product

Biology
2 answers:
Studentka2010 [4]3 years ago
8 0

Answer:

C

Explanation:

nikitadnepr [17]3 years ago
8 0

Answer:

c 4 grams

Explanation:

due to the law of conservation of matter, a reaction will produce the same mass as the reactant

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Compare AND contrast primary and secondary succession.
Margaret [11]

Answer:

Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

Explanation:

8 0
3 years ago
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Which of the following statements about the thyroid gland is true? A. It is located anterior to the trachea and inferior to the
vichka [17]

Answer: Option E. All the statements are correct.

Explanation:

Thyroid gland is an endocrine gland that is found in front of the neck, it consists of two lobes connected by isthimus. It is in front of the neck lying against and around the front of larynx and trachea. Thyroid gland secretes three hormones which are thyroxine, triiodothyronine and calcitonin. Thyroxine and trio doth tribune are thyroid hormone. The parathyroid glands are tiny structures found in the thyroid gland. A thick connective tissue separates the parathyroid glands from thyroid tissues. The thyroid gland is controlled by thyroid stimulating hormone called thyrotropin which is released from the anterior pituitary gland which triggers the release of thyroid hormones.

6 0
3 years ago
How are contaminants magnified up the food chain?
rosijanka [135]

Answer:

Biomagnification also called food web magnification or food web accumulation is the progressive increase in the concentration of contaminants in organisms as the trophic level increases. These unexpectedly large concentrations are the result of DDT biomagnification up the food web.

Explanation:

5 0
2 years ago
What would be the chemical formula of a linear tetranucleotide that would have deoxyribose sugars and one of each of the possibl
tresset_1 [31]
The chemical formula would be
CTGA or any of the combinations of the four nitrogenous bases
The nucleotide is made up of four bases which makes it a tetranucleotide and the arrangement of each bases create a linear geometry.
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A technique that uses measurement of radioactive isotopes to evaluate the activity of the brain is
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3 years ago
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