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agasfer [191]
3 years ago
11

Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different

parts of the house. At each part of the house, Joseph used a different antenna. The experiment could have been improved by _______________________________.
Testing reception of a different channel during each trial.


Using the same antenna during each trial.


Measuring the antenna length in centimeters.


Measuring the distance to the television station.
Biology
1 answer:
alisha [4.7K]3 years ago
3 0
<span>Using the same antenna during each trial.

</span>
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In the above food web green algae is the producer, periwinkle and microscopic animals are primary consumers; mussel, barnacle, dogwhelk and crab are secondary consumers; dogwhelk and crab comes under tertiary consumer; dogfish is a quaternary consumer.

What is a food web?

It is a natural interconnection of several food chains in a single ecosystem. Each food chain supplies energy and nutrients through the ecosystem. There are four food webs producer, herbivores, carnivores, omnivores and decomposers.

Here green algae comes under autotrophs(prepares their own food), periwinkle and microscopic animals are herbivores(depend on producer); mussel, barnacle, dogwhelk and crab are carnivores(depend on herbivore); dogfish is an omnivore(depends on both producer and carnivore).

Learn more about food web from the link given below:

brainly.com/question/2179?utm_source=android&utm_medium=share&utm_campaign=question

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7 0
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Answer:

Identify the general location of the zygomatic arch. cheek. The zygomatic arch is a bony bridge formed between the zygomatic and temporal bones. ... The temporal process of the zygomatic bone and the zygomatic process of the temporal bone fuse to form the zygomatic arch.

Explanation:

possible

answer

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