BIOLOGY HIGH SCHOOL

All amhibiana have limbs true or false​

Answers

Answer 1
Answer:

Answer:

true

Explanation:

Amphibian skin is permeable, meaning that it's not a solid barrier to the environment. They can absorb oxygen right through their skin. ... Amphibians have the amazing ability to re-grow not only tails but also toes and even legs to some extent!

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Horses and tapirs have a common ancestor, but they now look very different from one another. Horses are now grassland animals adapted for grazing on grass and shrubs. Tapirs are jungle animals that live in dense forests and eat fruit, leaves, and aquatic vegetation. Which of the following led to the development of such differences in the two species?A. Selective breeding
B. Convergent evolution
C. DNA hybridization
D. Natural selection

Answers

Convergent Evolution

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

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.

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.

Which of the following happens to chromosomes during prophase?A
They move to opposite sides of the cell.
B
They become centrioles.
They condense.
D
They disappear.

Answers

Chromosomes condense during prophase

When a raw, shell-less egg was placed in sugar solution, the egg shrank. The egg was brought back to its original size by placing it in water. Which process does the experiment demonstrate? A) osmosis B) diffusion C) dehydration D) reverse osmosis

Answers

A: osmosis. The egg first expanded because it was placed in a hypertonic solution (sugar water), causing the water to exit the egg to balance the higher concentration of solute outside of the egg. Placing it in fresh water creates a hypotonic environment, thereby causing water to rush back in.

Answer:

A

Explanation:

osmosis

Doctors do not administer vaccinations to people who are too sick. Which best explains why? A. The weakened or dead form of the pathogen may not have any effect on sick people. B. The weakened or dead form of the pathogen may have a fatal effect when it is combined with medication that the sick people are taking. C. The digestive systems of sick people may be negatively affected by the weakened or dead pathogen. D. The white blood cells of sick people may not be able to efficiently handle the weakened or dead form of the pathogen.

Answers

The Correct answer is option D

When a person is sick then it means that its immune system is already weak and the white blood cells of sick people do not work efficiently.

In this case if the body is administered with vaccination then there are chances that the person might die or become adversely sick.

Vaccination is given to evoke immune response by the help of White blood cells and if it is already not working efficiently then the vaccine can make the make person more ill.
D. If you give someone a vaccine while they are sick the body might not be able to handle both "infections"

What do plants do with the molecules made
during photosynthesis?

Answers

Answer:

Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen (Figure 2). The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development

Explanation:

The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development.
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