True or False? Circle the correct answer for each statement. If a statement is false, explain why under the

Biology

1 answer:

Lorico [155]3 years ago

4 0

Answer:

F,T,T,F

Explanation:

1)false-(its a covalent bond)

A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen.

2)True-(water is a polar molecule)

Water is a polar molecule because the positive end attracts particles of negative charge.

3)True

water dissociates to form hydrogen ions (H3O+) and hydroxide (OH-) ions

4)false

Lower pH number means stronger acid, higher pH number means stronger base.

You might be interested in

Summary of hearing: Vibrations cause the cochlea’s membrane to shake. This causes ripples in the ____________, bending the _____

mash [69]

Answer:

1) Basilar membrane

2) Stereocilia or hair cells

3) Nerve cells

4) Auditory

5) Temporal lobe

Explanation:

Basilar membrane: located inside of the cochlea which is located in the inner ear. This membrane separates two tubes that is filled with liquid which is also important for hearing.

Hair cells: Connected to the basilar membrane and they acts as sensory receptors which can catch movements (ripples) in the basilar membrane and pass this message to the neurons.

Nerve cells: One of the main cell types in the brain, which are responsible for signal transfer.

Auditory cortex: This part of the brain is located in temporal lobe and handles the auditory information.

8 0

3 years ago

A food that supplies two grams each of fat, carbohydrate and protein delivers ___ total calories.

shtirl [24]

<span>The commonly accepted values is 4 Calories per gram of protein and carbohydrate and 9 Calories per gram of fat. Since we have 2 grams of each, a little simple math will do: 2 g * 4 Cal/g + 2 g * 4 Cal/g + 2 g *9 Cal/g = 8 Cal + 8 Cal + 18 Cal = 34 Cal</span>

8 0

3 years ago

Can someone help me with this?

AnnyKZ [126]

3: B Nervous system. 4: A Sensing and responding to its external environment.

7 0

2 years ago

Agricultural land is cleared for limestone mining. Which of these plans prevents the permanent dislocation of local farmers due

pantera1 [17]

Answer:

Make reclamation mandatory after limestone has been removed

Explanation: