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creativ13 [48]
3 years ago
6

How do wind speed and ocean currents affect the surface temperature of oceans

Biology
1 answer:
Nina [5.8K]3 years ago
8 0

They cool off the water or warm it up

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The graph below depicts the frequency of expression of the range of leg lengths in a population of crickets:
Ilia_Sergeevich [38]

The correct answer is option:

The peak of the bell curve has shifted to the right, with a greater frequency of crickets with long legs and a lower frequency of crickets with short legs.

The given condition would lead the directional selection of the crickets with long legs. Directional selection leads to shifting of curve in one direction, which is more suitable.

The crickets with short leg get easily caught by predators, so, after sometime, there would be a decrease in number of the crickets with short leg. At the same time, the crickets with long leg would manage to save themselves and their number would comparatively increased.

3 0
3 years ago
A fossil is found to have a 14c level of 67.0% compared to living organisms. how old is the fossil?
sp2606 [1]
The half-life  of carbon-14 is equal to 5730 years. The amount of substance with half-life h at any time t is equal to,
                       At = (Ao) x (1 - 0.5)^(t/h)
Substituting, 
                    At/Ao = 0.67 = 0.5^(t/5730)
The value of t from the equation is 3310.6 years. 
3 0
3 years ago
After reading the paragraphs below, answer the questions that follow.
julsineya [31]

The evolution of H. floresiensis is an example of island dwarfism.

Explanation:

H. floresiensis is a species of hominid. It differs significantly than the other hominid species in size though, as it appears to be a dwarfed version of its ancestors and close relatives. Its alleged ancestor is literary twice taller, which brings in the question as to what has triggered such an evolutionary adaptation.

This hominid species lived only on a relatively small island, in isolation. The resources are very limited, and the climate is warm and humid all year around. As seen in many species of animals, when individuals get into such an environment, they tend to experience either island dwarfism, or island gigantism. The island dwarfism tends to be common among large and medium sized species, while the island gigantism tends to be more common among the small species.

When the ancestors of H. floresiensis ended up in this environment, it was advantageous for them to smaller. The reason for that is that smaller bodies require less nutrition, and are also producing less heat.

Learn more about the effects an island has on the animals brainly.com/question/12372014

#learnwithBrainly

7 0
3 years ago
If the allele for a long nose (N) is dominant to the allele for a short nose (n), what will be the relative frequency of n in a
Nastasia [14]

Answer: The answer should be C. I Hope that helped :)

Explanation:

6 0
3 years ago
Describing a plant and what it needs. Include descriptions of the stems, roots, leaves, flowers, buds. Describe why photosynthes
charle [14.2K]

Answer:

Taproot systems feature a single, thick primary root, called the taproot, with smaller secondary roots growing out from the sides. The taproot may penetrate as many as 60 meters (almost 200 feet) below the ground surface. It can plumb very deep water sources and store a lot of food to help the plant survive drought and other environmental extremes. The taproot also anchors the plant very securely in the ground.

Fibrous root systems have many small branching roots, called fibrous roots, but no large primary root. The huge number of threadlike roots increases the surface area for absorption of water and minerals, but fibrous roots anchor the plant less securely

Explanation:

8 0
2 years ago
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