Answer:
As you move from an animal's class to its order, it becomes part of a smaller group that is more closely related.
Explanation:
There are seven levels of classification for animals. The highest level of classification is Kingdom which is Animalia that include all the animals present on earth.
So the seven-level of classification are Kingdom, Phylum, Class, Order, Family, Genus, and Species. When we move down in the classification level the similarities increases between animals and when we move up from species to kingdom the similarities decrease between animals.
So by moving from higher-level like class to lower level like order the number of animal groups will become less and they become more closely related due to increase in the genetic similarities between them.
muscles
fluids
bones
Answer:
The correct answer would be bones.
X-rays are high energy electromagnetic waves which have an ability to penetrate most of the biological tissues.
In the X-ray machine, a beam of high energy X-rays is passed through the filters and subject and then fall on the detector or photographic film to produce X-ray.
Dense tissues like bone, teeth, tumors et cetera blocks or stops most of the X-ray particles from reaching the detector or photographic film.
It forms glowing pictures on the X-ray film or photographic film.
The denser the material the brighter the image will be formed on the photographic film.
Answer:
The correct answer would be C) respiratory system.
Respiratory system is made up of set of organs which help in taking in oxygen and expelling out carbon dioxide from the body.
In humans, it is composed of nose, pharynx, larynx, trachea, bronchi, pair of lungs, and diaphragm.
Alveoli (in lungs) are the site of gaseous exchange where oxygen is exchange with carbon dioxide.
Carbon dioxide is the toxic waste product of cellular respiration. Circulatory system helps in transporting CO₂ from cells to the alveolar site where it is exchanged with oxygen and excreted out as a part of exhaled air.
Answer: C
Explanation: got it right
tunneling microscope
compound light microscope
electron microscope
Cells were first observed through a simple microscope, which is the first option, as Antonie van Leeuwenhoek, a Dutch scientist, used a simple microscope that he designed and built himself to observe and describe microscopic organisms.
The history of the microscope goes back several centuries, with various scientists and inventors contributing to its development. One of the most notable figures in the history of microscopy is Antonie van Leeuwenhoek, who is considered the father of microbiology. He was a Dutch tradesman and amateur scientist who lived in the 17th century, and he was the first person to observe and describe microscopic organisms. Leeuwenhoek's microscope was a simple microscope, which means that it had only one lens. The lens was a small, spherical bead of glass that was mounted on a metal plate.
Hence, cells were first observed through a simple microscope, which is the first option.
Learn more about the microscope here.
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Answer:
Simple microscope
Explanation: