BIOLOGY HIGH SCHOOL

Which of the following statements is true?A) cool air is less dense than warm air.
B) Sound does not require a medium for travel.
C) Magnetism is caused by the spinning motion of electrons.
D) Electricity flows from positive to negative areas.

Answers

Answer 1
Answer: The statement that is true is C.
Answer 2
Answer:

Answer:

Magnetism is caused by the spinning motion of electrons. is true :)

Explanation:

Related Questions

Put these in order from the small to the largest organism, cell, organ, tissue, organelle, organ system​
Which process helps gas exchange to occur?
which indicates the age of a skull? closing of the structures, thickness of nasal spine, size of the mastroid process, or thickness of brow ridges.
In eukaryotes, electron transport occurs in theA. inner mitochondrial membrane. B. nucleus. C. cell membrane. D. cytoplasm.
Why does fossil fuel use in the United States make the U.S. vulnerable to the political wishes of foreign countries?A: The US is a net exporter of fossil fuels. B: Fossil fuels lead to global climate change. C: The US imports much of its petroleum from foreign countries which set the prices. D: All of the above.

How do adaptations of rainforest primates differ from those of woodland/grassland primates? a) Rainforest primates tend to have larger body sizes. b) Woodland/grassland primates often have prehensile tails. c) Rainforest primates exhibit more pronounced sexual dimorphism. d) Woodland/grassland primates commonly show quadrupedal locomotion.

Answers

Final answer:

Rainforest primates have adaptations for tree living, like rotating shoulder joints, a widely separated big toe, and stereoscopic vision. Woodland/grassland primates might not require these same adaptations due to spending more time on the ground. However, adaptations can vary widely among species.

Explanation:

The adaptations of rainforest primates and woodland/grassland primates differ in response to their respective habitats. Rainforest primates, such as the orangutan, have developed traits like rotating shoulder joints and a widely separated big toe that facilitate climbing and swinging through trees. Their vision is stereoscopic, enabling them to gauge distances accurately which is crucial in dense forest environments.

On the other hand, woodland/grassland primates might not necessarily have these same adaptations as they might spend more time on the ground. While some may also have prehensile tails or exhibit quadrupedal locomotion, it should be noted that these characteristics can vary widely among species, and no one trait can be used to distinguish all woodland/grassland primates from rainforest ones.

Learn more about Primate Adaptations here:

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Describe the process of expansion.

Answers

The process of expansion is the it increase of volume resulting from an increase in a temperature .
hope it helped!!!
Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer. Temperature is a monotonic function of the average molecular kinetic energy of a substance. 

Which is true about the light-independent reactions?A. Energy-rich carbohydrates are all used up, allowing none to leave the cycle.
B. No carbon dioxide because it was used up in the light-dependent reactions.
C. Energy taken from ATP and NADPH is used to make energy-rich carbohydrates.
D. Carbon dioxide is broken off of molecules with three carbons.

Answers

Light dependent reactions convert ADP into ATP, produce oxygen gas, and convert NADP+ into NADPH. Hope this helps!

Which of the choices below is the main producers in the aquatic environment? a. phytoplankton b. zooplankton c. kelp d. fish

Answers

I think the correct answer from the choices listed above is option A. The main producers in the aquatic environment is the phytoplankton. They are the base of several aquatic food webs. They provide food for many marine animals. Hope this answers the question.

Traits are determined by

ribosomes
vacuoles
genes
mitosis

Answers

Traits are determined by genes

1. How is pressure related to force and surface area?

Answers

air pressure pushes all around you, it is the force of air spread over the surface area of your skin


pressure is the measure of how much force over a certain area

this is an example
imagine putting a 10 pound weight (disk) on your stomach (not dropping, puttting), not too hard right, now imagine that it was 1 pin that was 10 pounds, that would hurt, the force is still 10 pounds down but the surface area is alot smaller, more pressure
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DNA is made of 2 chains of nucleotides. which type of bonds hold the chains rogether?