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natima [27]
3 years ago
9

Which of the following most often the start of a scientific investigation

Biology
1 answer:
Flura [38]3 years ago
3 0

the most often the start of a scientific investigation. is observation

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Calculate the number of protons and neutrons in each isotope listed . Uranium-235_______ protons,________neutrons
77julia77 [94]

Number of protons in Uranium-235 is 92

Number of neutrons in Uranium- 235 is 143

Explanation:

Isotopes are the two or more elements having the same number of protons and electrons but different number of neutrons. They differ in their atomic masses.

5 0
3 years ago
which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing envir
erica [24]

Species adapt to their environment using mutations to give them characteristics that better fit their environment over generations

6 0
2 years ago
Describe what happens as a plant's turgor pressure increases and decrease AS MUCH POINTS AS I CAN GIVE​
Dimas [21]

Answer:

Brainliest pls

Explanation:

Turgor pressure in plants. Turgor pressure within cells is regulated by osmosis and this also causes the cell wall to expand during growth. Along with size, rigidity of the cell is also caused by turgor pressure; a lower pressure results in a wilted cell or plant structure (i.e. leaf, stalk).

Turgor pressure in plants plays a key role in processes such as growth, development, mechanical support, signalling, flowering and stress response. Turgor pressure is an ideal means in plant cells through which the energy content of water molecules (water potential) can be adjusted quickly, within seconds.

8 0
2 years ago
An ionic bond occurs when _____.
Gnom [1K]
It would be 2) two atoms exchange electrons and become ions
3 0
3 years ago
Ringing in the ears is called:
Elza [17]

Answer:

c. tinnitus

Explanation:

Tinnitus (a hearing impairment) is a form of  hearing of sound when no external sound is present Which is often described as a Ringing,Tinnitus may also sound like a clicking or roaring. i.e usually unclear voices or music are heard. The sound may be soft or loud, low or high pitched, and appear to be coming from one or both ears. Ranging from one person to another, the sound may causes depression or anxiety and can interfere with concentration.

Otitis externa is a condition that causes inflammation , the inflammation also covers  (redness and swelling) of the external ear canal, i.e the tube between the outer ear and eardrum.

Meniere's disease popularly called (MD), is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), hearing loss, and a fullness in the  ear. The cause of MD involves both genetic and environmental factors. Some of the factors include constrictions in blood vessels, viral infections, and autoimmune reactions.

Otosclerosis is a condition where one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule in the bony labyrinth. This condition affects one of the ossicles (the stapes) resulting in hearing loss, vertigo or a combination of symptoms.

Therefore from the foregoing we can conclude that Tinnitus is the correct anwser.

4 0
3 years ago
Read 2 more answers
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