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3 years ago

How do scientists gather information about the natural world

Biology

1 answer:

xxMikexx [17]3 years ago

3 0

They observe it, run tests on many different things, and do expirments

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Which of the following are signs that an earthquake may occur?

vampirchik [111]

The signs that earthquakes may occur is.. Foreshocks, Changes in temperature, and Magnetic properties of rocks, Animal behavior,

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2 years ago

What must happen for a solar eclipse to occur?

ZanzabumX [31]

The best answer to the question stated above is letter C.The moon's orbit must cross the plane of the ecliptic.

>>Solar eclipses happen when the Moon moves between Sun and Earth, blocking the Sun's rays and casting a shadow on Earth.
>>Solar eclipses can happen only during a new Moon.
>>Earth's orbit is called the ecliptic plane as the Moon's orbit must cross this plane in order for an eclipse (both solar as well as lunar) to occur

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2 years ago

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In the spotted tulip, white flowers are dominant to yellow (gene Y), and axial flowers are dominant terminal flowers (gene T). E

aleksklad [387]

Answer:

9/16 A_B_ White colour, axial flower

3/16 A_bb White colour, terminal flower

3/16 aaB_ Yellow colour, axial flower

1/16 aabb Yellow colour, terminal flower

Explanation:

Let the flower colour allele be represented by A and the flower position by B. The dominant white colour would be A while the alternate version (the yellow colour) would be a. Also, the dominant axial flower position would be B while the alternate terminal position would be b.

The Punnet's square result of crossing two plants that are heterozygous for both traits is as in the attached image.

AaBb x AaBb

Possible Offspring

9/16 A_B_ White colour, axial flower

3/16 A_bb White colour, terminal flower

3/16 aaB_ Yellow colour, axial flower

1/16 aabb Yellow colour, terminal flower

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2 years ago

Which of the following best describes the cycle of matter between humans and the environment?

JulsSmile [24]

Answer:

B: humans inhale oxygen from plants which is used in cellular respiration to produce water

Explanation:

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1 year ago

Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.

Slav-nsk [51]

Answer:

When water is added to a graduated cylinder, having a surface where the sides of the water look higher than the center means that the curved surface is a concave meniscus which has formed because of surface tension (Choice C).

Explanation:

A meniscus is simply the curvature that the surface of a liquid acquires when it is in a container, such as a graduated cylinder. It is concave when there is attraction between molecules -water and glass- or it can be convex when both surfaces are repelled.

Water is a polar molecule, with the capacity to adhere to the surfaces it comes into contact with. This characteristic causes it to form a concave meniscus, as the outermost molecules adhere to the glass surface, while the surface tension of the water attracts the molecules from the centre downwards, causing the concavity.

Learn more:

Measuring with a graduated cylinder brainly.com/question/4070509

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2 years ago

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