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2 years ago

Pls hurry im doing an exam Four groups of students plan scientific investigations to answer four questions for the science fair.

Biology

1 answer:

mafiozo [28]2 years ago

7 0

Answer:

The correct option is 3

Explanation:

An experimental investigation would require an hypothesis, aim, methodology, results, discussion and conclusion.

The third option can be easily answered using the "requirements" above.

The hypothesis (null hypothesis) would be different types of grass do not affect how far a ball rolls

The aim would be to determine the effect of different types of grass on the movement of a ball

The methodology would involve identifying several playing grounds with different grasses and then rolling the ball with a constant force on the different grasses and then determining the eventual speed and distance traveled by the ball on those grasses which would serve as the results. Inferences can then be made from this results and then conclusions drawn subsequently.

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ANSWER FAST PLS!

sergey [27]

Answer:

i think it's bacteriophage

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3 years ago

What food product is most likely to be enriched with thiamin niacin riboflavin and iron?

svlad2 [7]

Refined grain products like bread, flour tortillas, white rice, cornmeal, crackers etc are enriched with riboflavin, niacin, iron and thiamin.

Enriched grains is finely ground endosperm of the kernel. Enriched grain products are good as a source of iron and four types of vitamin B which includes niacin, thiamin, folic acid and riboflavin and also contains some complex carbohydrates.

Wheat and rice are a staple diet in many regions of the world but excessive polishing and refining the cereals removes the essential nutrients or vitamins which have their own important physiological roles.

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3 years ago

The sugar maltose would be digested by the enzyme sucrase. True False

Maurinko [17]

Answer:

Explanation:hola me respuesta es d

Si juegas free fire bn garcias por escucharme

Explanation:Explanation:hola me respuesta es d

Si juegas free fire bn garcias por escucharme

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3 years ago

A daughter cell that matures to the inside of the vascular cambium becomes ______, and a daughter cell that matures to the outsi

melomori [17]

A daughter cell that matures to the inside of the vascular cambium becomes secondary xylem and a daughter cell that matures to the outside of the vascular cambium becomes secondary phloem.

The cambium divides its cells to create secondary xylem and phloem. As secondary phloem and xylem tissue builds up, the stem becomes thicker and develops wood and bark.

The kind of xylem produced by secondary growth is known as secondary xylem. In contrast, during primary growth, the primary xylem develops.
As a result, lateral growth, as opposed to vertical growth, is connected with the secondary xylem, as opposed to the primary xylem.
The procambium, which is found between the xylem axis and the phloem pole, develops into the cambium in the root.
A pattern resembling the arrangement of secondary stem is produced when xylem forms in the core and phloem on the perimeter of secondary development.

learn more about vascular cambium here: brainly.com/question/859907

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2 years ago

Read 2 more answers

How would playing a game of soccer, baseball, or basketball be different if inertia didn’t exist?

ANEK [815]

An example of inertia could be when you are in a car and it stops. You know how your body suddenly jumps forward? That's inertia. Inertia is the tendency of a body to resist a change in motion or rest. In the same way, you jump backward when the car starts moving forward. So if you tried to play soccer or baseball without inertia, it would be difficult to score a goal or home run as the ball would try to resist changing direction.

3 0

3 years ago