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sashaice [31]
3 years ago
15

Which of the following is an observation?

Biology
1 answer:
Svetach [21]3 years ago
7 0

Answer:

a. You record the air temperature every day for a week.

Explanation:

Recording air temperature every day for a week can be classified as making an observation.

Observation is a part of the scientific method. It is a basically a way of collecting data.

  • During observation, our senses can be used or instruments.
  • Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses.
  • A good scientist is a keen observer.
  • Making a record of air temperature usually by using a thermometer is a way of carrying out observation.

When you record air temperature, you are making an observation.

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Explanation:

Proglottids are segments in cestodes that contain bot the male and female reproductive organs. These segments go ahead to make eggs and then dettach form the worm. They are excreted and become agents of infection on the next hoist. Proglittids formed near the neck of the worm are immature while those at the tail end are literally bags of mature eggs.

The scolex is the head of the worm that is attached to the host. It is also the part that ‘sucks’ nutrients from the host. It has hooks that it uses to anchor itself in the host. In some species, rather than hooks, there are suction-cups that use suction for anchorage.

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For more on cestodes check out;

brainly.com/question/14565928

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3 years ago
The order Cetacea includes modern-day whales, dolphins, and porpoises. These marine mammals share common characteristics that ha
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Answer:

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The process of evolution explains how closely one organism is to another based on their common ancestors. Scientists believe that those organisms which show many similarities in their structures or functions might have evolved from a common ancestor in the past.

As in the above-mentioned question, scientists have observed that cetaceans lack gills and breath air, this is a property of land mammals. The cetaceans have fin bones which are similar to the limb bones. As limb bones are present in land mammals, hence they cetaceans and land mammals might have common ancestors in the past.

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