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Ivanshal [37]
3 years ago
9

Please help just the two top questions

Biology
1 answer:
DerKrebs [107]3 years ago
3 0
43)A   42)D  bhhhhhhhhhhhhhhhhhhhhh
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Which of the following material has the highest electrical conductivity?
podryga [215]

Answer:

I would think Aluminum but i'm not 100% positive.

Explanation:

8 0
3 years ago
In a hypothetical situation, a certain species of aphid feeds only on sugar maple trees. In forests of the eastern United States
Schach [20]

Options for the questions are not given. They are as follows :

A ) 1,2,3

B) 2,3

C)1 ,3, 4

D)1

E) 1 through 4

Answer:

C) 1,3,4

Explanation:

Some aphids make black walnut trees their habitat in the forest and only prefer to mate with aphids who have the same habitat. This is an example of reproductive isolation since these aphids now have different mating preferences and hence are isolated from rest of the aphids. The isolation occurred on the basis of difference in habitats so it is also an example of habitat isolation. Since the mating is prevented all together it is also an example of prezygotic barrier i.e. formation of zygote is inhibited. However, it is not an example of allopatric speciation since the aphids are not separated geographically from each other. They are present in the same area but have different habitat preference. Hence, option C is correct answer.

5 0
3 years ago
Which is an abiotic factor that affects a freshwater ecosystem apex?
mina [271]
My guess is that fat-soluble toxins that may occur in freshwater ecosystems would most affect apex species in these ecosystems. This is because fat-soluble toxins are stored in the fat reserves of animals, and then bioaccumulate up the food chain. So in this case, most of the toxin is not secreted, but stored within the food chain, and bioaccumulates, with the concentration becoming higher the further up the food chain. 
8 0
3 years ago
Read 2 more answers
Which of the following could help slow down the use of fossil fuels?
My name is Ann [436]

Answer:

B

Explanation:

processvof elimination

8 0
3 years ago
When conducting an experiment on how stimuli are represented by the firing of neurons, you notice that neurons respond different
Cerrena [4.2K]

Answer:

Sparse coding

Explanation:

Sparse coding can be described or explained as a situation where items are encoded or represented by strong activation of a relatively small sets of neurons.

It should be understood that neurons code for the intensity of stimulus , and this is done in two ways which are

* Frequency coding...here, the firing rate of sensory neurons increases with increased intensity, and

* Population coding....here, the number of primary afferent responding increases.

In this case, the results derived or gotten from both Arthur's and Roger's faces supported the sparse coding.

4 0
3 years ago
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