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Ksju [112]
3 years ago
8

The current plight of the polar bear is an example of _____.

Biology
2 answers:
valina [46]3 years ago
8 0
A specialized animals inability to rapidly adapt to a changing environment
marusya05 [52]3 years ago
3 0

Answer:

a specialized animal's inability to rapidly adapt to a changing environment

Explanation:

The polar bear is native to the areas around Arctic Circle. The polar bear are mostly found around the Arctic Ocean, the surrounding seas and the surrounding land masses.

                  The adverse effects of climate change are seen in each and every corner of our planet, but the danger to the polar bear in the recent years has become more apparent. The existence of these specialized animal is in great danger due to global warming.

                 The Arctic sea ice has been melting at a faster rate and this rapid loss denies the polar bears of their natural habitat and catching seals for food, the main source of their nutrition. Because of climate change and rise in temperature, the polar bears are deprived of valuable hunting and remain without food for weeks. Thus, this specialized animal is unable to rapidly adapt themselves to the climate change.

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If level 2 becomes diseased, what is a possible consequence?
Dafna11 [192]

Answer:

The population may decrease, problems may occur.

Explanation:

If one part of the equation is effected, another part becomes effected.

3 0
3 years ago
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The human eye is most sensitive to green light of wavelength 505 nm. Experiments have found that when people are kept in a dark
Gnoma [55]

Answer: 9x10-3ms-1 -- A

Explanation:

Given wavelength λ = 505nm

1nm= 10^9m

505nm = 5.05 x10 ^-7m

and speed of light, c  is 3.8 x 10^ 8

frequency = ?

Using  frequency = speed of light / wavelength

f = c/λ

Frequency , f= 3.8 x10^8m/s/ 5.05 x10 ^-7m

=5.94 x 10 ^14 s⁻1

Also Energy = hv

where h =Planck constant  = 6.626 x10 ^ -34 J.s

v= frequency =5.94 x 10 ^14 s⁻1

 Energy = 6.636 x10 ^ -34 J.s x5.94 x 10 ^14 s⁻1

= 3.935 x 10 ^-19J

Given

9.5×10 −12 g as the mass of the bacterium,

changing to kg

1000g= 1kg

9.5×10 −12 g = 9.5×10 −15kg

to find the velocity

Energy = 1/2mv² = E=1/2mv²

v=\sqrt{2 xE/m}  =\sqrt{2 x 3.935 x 10^ -19 / 9.5 x 10^-15}

v =0.009099=   9x10-3ms-1

7 0
4 years ago
What are three terms to describe organisms such as cows
ch4aika [34]
The three terms<span> that are used to </span>describe organisms such<span> as lions are third order heterotrophs, tertiary consumers and top carnivores. Lions are also known as apex or top predators.</span>
4 0
4 years ago
Which of the following events would be directly affected if a neuron had a mutation that prevented the production of voltage-gat
Blizzard [7]

Answer:

depolarization leading to action potentials

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The voltage-gated Na+ channels are responsible for rapid depolarization phase of the action potential. Action potential generation require depolarization of neuronal membrane which is acquired by influx of sodium ions through voltage gated sodium ion channels. If the Na+ channels are blocked, there will be no influx of sodium ions to cause depolarization hence action potential will not be generated.

5 0
3 years ago
Why do we itch? Is it an evolution thing?
Brut [27]

Answer:

we itch reacting to stimuli like when ee get poked we react and so on. And it not an evolution

4 0
3 years ago
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