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Mekhanik [1.2K]
3 years ago
9

Fish, snakes, and birds are all types of A. spiracles B. vertebrates C. invertebrates D. insects

Biology
1 answer:
neonofarm [45]3 years ago
6 0
Vertebrates. they are all chordates, which mean they have a notochord somewhere in their body.

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Give all the possible Anti-codons for the amino acids listed below. (Use page 244 in your text). Histidine (His)
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Answer:

idek

Explanation:

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2 years ago
What characteristic of water causes water to stick to the side of a test tube?
bazaltina [42]

Answer:

The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity (Claim).

Explanation:

Water (H₂O) is a polar molecule with the ability to generate van der Waals forces, which is explained by the 4 hydrogen bonds it forms to bind to other substances. The consequence of the forces of the molecular bonds are four properties of H₂O, including surface tension, cohesion, adhesion and capillarity.

- <u>Claim</u>: The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity.

- <u>Evidence</u>: Cohesion and adhesion of water are properties that come from the forces of the molecular bonds of water, and whose effect is the ability of water to wet surfaces and adhere to a tube that contains it, the latter due to capillarity. Capillarity also allows water to rise through the roots and stems of plants, through their thin vascular ducts.

- <u>Reasoning</u>: <u>cohesion</u> in water depends on the force of attraction between H₂O molecules, <u>adhesion</u> is the capacity of H₂O molecules to join other different molecules and —together with <u>surface tension</u>— make H₂O molecules close to the walls of a glass tube adhere to it, which represents capillarity.

The effect of capillarity is more evident when the test tube is of a smaller diameter, although capillarity and adhesion to its walls always exist, and to a greater degree than any other substance.

8 0
2 years ago
Which best explains the effect of reforestation on land?
8090 [49]

Explanation:

Reforestation of agricultural land can improve biodiversity, which can result in increased primary production, reduced susceptibility to invasion by exotic species and increased ecological resistance to pressures such as climate change

8 0
2 years ago
Read 2 more answers
The ocean is maintaining a constant salinity because:
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In mid-ocean ridge areas, ocean water is cycled through the crust because of the high heat flow in the area. Water in the rock is heated over the magmas, rising up and drawing in cold water from the sides. This process is occurring all over the world, and is the primary means for maintaining ocean salinity in a relatively constant range over the long term, as elements in the sea water when it is heated react with the rocks. There is so much water flow, cumulatively over the entire world, that this process basically buffers ocean chemistry.

Obviously large increases or decreases in salinity can and do occur in isolated basins that do not have free exchange with the open oceans.
8 0
3 years ago
A vibration that produces a wave takes 0.5 Seconds to complete what is the frequency of the wave
masya89 [10]
The solution to the above question using the formula f=1/T where. T=0.5seconds is f=1/0.5= 2 hertz
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3 years ago
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