BIOLOGY HIGH SCHOOL

Observation of tool-making among chimpanzees was revolutionary primarily because scientists believed _______. a. chimpanzees lacked the dexterity to make tools b. tool use was a defining characteristic of humans c. tool-making was a defining characteristic of humans d. none of the above

Answers

Answer 1
Answer: The answer to the question stated above is letter C.
Observation of tool-making among chimpanzees was revolutionary primarily because scientists believed tool-making was a defining characteristic of humans.
>>>FACT<<<
>Chimpanzee mothers in the Tai Forest, instruct their children in tool use. Chimpanzee mothers  assist them in placing the nut in the anvil in the proper way.
Answer 2
Answer:

The correct answer is:

c. tool-making was a defining characteristic of humans

Explanation:

They believed that the tool making was a characteristic that was possessed by humans.The initial stone toolmaking increased by at least 2.6 million years ago. The Early Stone Age covers the most basic stone toolkits made by early humans. The Early Stone Age in Africa is comparable to what is described the Lower Paleolithic in Europe and Asia.

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Certain chest deformities prevent normal expansion of the chest. Explain why this makes ventilation difficult in terms of pressure and volume.

Answers

The lungs work by expanding and going back to their original size when you inhale and exhale. The rib cage also expands so the lungs can have more air inside and expand. Due to deformities, the rib cage might not expand and/or the diaphragm might not lower itself, which might lead to pressuring the lungs not to expand and having a lower volume of air inside. This leads to breathing difficulties.

The germ theory of disease was established by

Answers

The germ theory of disease was established by Lois Pasteur. He conducted experiments to prove that fermentation is the result of micro-organisms growing on sugar. It proved that spontaneous generation was wrong. Spontaneous generation was the belief that the action of God could cause living organisms to grow from non-living things. Pasteur also proved that micro-organisms from the air were the cause of infectious diseases. Three of his daughters died from infectious diseases. Pasteur proved that these diseases were caused by germs floating in the air. He also helped develop vaccines to help prevent some of these diseases. 
It was authorized by Lois Pasteur.

What does sonar equipment measure

Answers

It measures the oceans depth!
the depth of the ocean floor.comment if wrong. ;-)

Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. How high or low is the probabilty that a female child of Charles and Marie would suffer from hemophilia? A. 0 percent B. 25 percent C. 50 percent D. 100 percent

Answers

Without a pedigree chart, it is not possible to answer this question. However, given this is a HS bio class question, they are probably looking for the simplistic answer "A", zero percent, based on the erroneous notion that women cannot have hemophilia. Women carriers of a defective gene coding for hemophilia frequently do themselves have mild or moderate hemophilia and, in very rare cases, severe hemophilia.

What general type of plant food is produced by photosynthesis

Answers

The answer would be: carbohydrates. 

Photosynthesis occurs at the cell level. Which organelle is necessary forphotosynthesis? *
Golgi Apparatus
Chloroplast
Rough endoplasmic reticulum
Mitochondria

Answers

Chloroplast lol good luck
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