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svp [43]
3 years ago
10

Alright, i am homeschooled and go to keystone homeschool, i am taking 9th grade biology and need someone to check and help me wi

th some questions...
thanks!
A meter is a unit of length. How many meters are there in one kilometer (km)?
i put: 1000
A liter is a unit of volume. How many milliliters are there in one liter (L)?
i put: 1000
There are 1000 milligrams in one kilogram. true or false?
i put: false
Which salt concentration served as the experimental control in lab?
i put: 0m - not sure about this question...
Four groups of mice consume different amounts of sweetener in their food. The control group is the one that receives ____.
i put: extra food
What is a hypothesis?
i put: a general statement made to infer a specific conclusion, often in an "if . . . then" format.
Some scientific data are obtained through observation rather than experimental results. true or false?
i put: TRUE
You probably believe that Earth is spherical. But as we look around, it certainly appears that Earth is flat. One classmate suggests that if you call someone on the 'other side' of the world by phone, they can verify that it is midnight there when it is noon here. Another student reminds you of the picture taken of the spherical Earth from the moon landing. Your teacher explains the ancient observation that when the Sun was directly overhead on one day near the equator, a pole some hundreds of miles away to the north still cast a shadow. What, then, is the best scientific basis for considering that Earth is spherical?
i put:Reasoning must be used to arrive at a model that best fits the observations.





the questions above need to be checked and the questions below need answering:




Which statement is NOT true about science?

Science approaches data in a subjective manner.

Science attempts to avoid prejudice in making judgments.

Science is concerned about understanding the natural world.

Science gains information by observing and testing the natural world.


Which of these statements represent a possible hypothesis from the salt boiling lab?

Addition of salt to water will cause the boiling temperature of the water to increase.

Addition of salt to water will cause the boiling temperature of the water to decrease.

Addition of salt to water will cause the boiling temperature of the water to neither increase nor decrease.

All of these represent hypotheses.



Scientists typically measure temperature using the Fahrenheit scale.

TRUE

FALSE



The dependent variable in an experiment is the factor that is controlled by the experimenter.

TRUE

FALSE



i will give brainliest answer !!!!


please help
Biology
1 answer:
Gre4nikov [31]3 years ago
6 0

Scientists typically measure temperature using the Fahrenheit scale.

the answer to this question is false

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A stock transfer can involve movements:______ A. Between different plants within the same storage location. B. Between stroage l
gogolik [260]

Answer:A,B,D,E,F

Explanation:

Stock can be transfer depending on the organization.

The movement of stock is divide into three broad categories

Stock transfer from Plant to plant- movement of stock from a plant to another plant

Stock transfer from Company code to company code- movement from ome company code to another

Stock transfer from Storage location to storage location

Between different plants within the same storage - stock can be moved from one plant to another within the same storage this will lead to a change in quantity in both plant and it should be noted

Between storage locations within one plant- stock location can be change in a plant but it doesn't affect the quantity.

Between plants in different company code- stock can also be moved from one company code to another this requires adequate documentation when the stocked are moved.

5 0
3 years ago
Na + Cl2 --> NaCl if you were given 15 grams of sodium (with excess chlorine) and asked to determine the amount of NaCl that
Elena-2011 [213]

Answer:

The correct answer is - 38.15 gm of NaCl.

Explanation:

Write the balanced equation for this reaction of sodium (Na) and chlorine (Cl₂) to produce sodium chloride (NaCl):

2Na + Cl₂ —> 2NaCl

the mass of Na and the mass of NaCl :

Molar mass of Na = 23 g/mol

In the balanced equation = 2 × 23 = 46 g

Molar mass of NaCl = 23 + 35.5

= 58.5 g/mol

similarly in balanced equation = 2 × 58.5 = 117 g

From the balanced equation above,

46 g of Na reacted to produce 117 g of NaCl.

By converting it to 15 grams of Na.

Therefore,15 g of Na will react to produce = (15 × 117)/46 = 38.15 g of NaCl.

Thus, 38.15 g of Na

4 0
3 years ago
17- Microorganisms which require 0-5.5 pH for the growth are:
GREYUIT [131]

Acidophiles is the correct

4 0
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Plants manufacture glucose ____
djverab [1.8K]

Plants manufacture glucose during photosynthesis. Which would be the process that plans use to make food using sunlight.

3 0
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When an animal confronts a "fight-or-flight" situation, the release of epinephrine promotes glycogen breakdown in the liver, hea
nika2105 [10]

Answer: and Explanation:

A.)The reason for the different products of glycogen breakdown in the two tissues is that glucose 6-phosphotase which is

a known enzyme that brings about hydrolysis of glucose 6-phosphate as a result of the creation of a phosphate group and free glucose is not available in heart and skeletal muscle, therefore,any glucose 6-phosphotase that is produced will just enters the glycolytic pathway and get converted to lactate through pyruvate, in the absence of Oxygen O2.

B) Whenever a situation involving fight or flight arises, the concentration of glycolytic precursors becomes high in order to prepare for muscular activity. Since the membrane is impermeable to any charged species, and at the same time glucose 6-phosphotase enzyme cannot be moved through the glucose transporter, then there cannot be a release of Phosphorylated intermediates from the cell. The blood glucose level must be maintained by the liver by releasing of glucose.

glucose that is later formed from glucose 6-phosphotase then enters the bloodstream.

8 0
3 years ago
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