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Ostrovityanka [42]
2 years ago
11

A scientist observes how a particular South American bird cares for its young. Why is a field study an appropriate type of scien

tific investigation? A. It allows the scientist to simulate the natural environment of the bird in the laboratory. B. It allows the scientist to conduct a controlled experiment. C. It allows the scientist to watch the animals without disturbing them or their environment. D. It allows the scientist to change how the bird cares for its young.WHOEVER ANSWERS FIRST GETS BRAINLIEST ANSWER
Chemistry
1 answer:
mixer [17]2 years ago
7 0
The best answer would be A. Hope i helped
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Which conditions are necessary for natural selection? Check all that apply.
zepelin [54]

Answer:

Populations have genetic variation.

The environment changes.

Organisms must have specific traits in order to survive and reproduce.

Explanation:

Natural selection provides an advantage during an adverse condition for organisms that have a rich genetic variation in their population.

Also, environmental changes induced natural selection whereby organisms must adapt to changes around them.

For organisms to survive, they must have specific traits that gives them a competitive reproductive advantage.

3 0
2 years ago
Read 2 more answers
Colligative properties include __________ the freezing point, _____________ the vapor pressure, and ___________ the boiling poin
MrMuchimi
Colligative properties include lowering the freezing point, lowering the vapor pressure, and raising the boiling point.

7 0
3 years ago
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Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and exp
Sedbober [7]

Answer:

ΔH > 0; ΔS >0; ΔG = 0

Not spontaneous when T < 100 °C;

         Equilibrium when T = 100 °C

      Spontaneous when T > 100 °C

Step-by-step explanation:

The process is

H₂O(ℓ) ⇌ H₂O(g)

ΔH > 0 (positive), because we must <em>add heat</em> to boil water

ΔS > 0 (positive), because changing from a liquid to a gas i<em>ncreases the disorder </em>

ΔG = 0, because the liquid-vapour equilibrium process is at <em>equilibrium</em> at 100 °C

ΔG = ΔH – TΔS

Both ΔH and ΔS are positive.

If T = 100 °C, ΔG =0. ΔH = TΔS, and the system is at equilibrium.


If T < 100 °C, the ΔH term will predominate, because T has decreased below the equilibrium value.

ΔG > 0. The process is not spontaneous below 100 °C.


If T > 100 °C, the TΔS term will predominate, because T has increased above the equilibrium value.

ΔG < 0. The process is spontaneous above 100 °C.

4 0
3 years ago
The density of pentanol, C3H20, is 0.8110 g/mL. Calculate the volume occupied by 7.455 moles of pentanol. What is the volume occ
lozanna [386]

Answer:

i dont no ehh ahh i answer this question and this question is an dibitual sence

Explanation:

ahahalsbaowvapnavskqleveywpwndvsmavalsnsbalsmbsiabsopqmgdijsbsiwbskwnvskabhsksn

mabahslambbsoalnqnmlpigfqjskbdnmxnxb slabslwobdksjwmsnmaksbkakskslanksoqlmmbsjpqloyewqasfhjllmvxxwtyipeorirubamsbsmsnsmsoandbaksnsgaks

7 0
2 years ago
How does peer review affect research?
Mice21 [21]

Answer:

I am pretty sure the answer is C.

Explanation:

4 0
2 years ago
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