Explain why bridges have expansion joints in

Answers

Answer 1

Answer: Bridges are made of steel. This means that they expand and contract depending on he weather. If there were no expansion joins installed, the bridge would fall apart due to not being able to move.

Answer 2

Answer: Bridges have expansion joints as they are made of steel and metals like steel expand during summers due to heat and contracts during winters. If they is no expansion joints in bridges then the steel could not expand or contract. This might cause it to break.

Hope i helped you:)

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What is the net ATP production at this stage of cellular respiration?2 ATP
4ATP
32 ATP
36 ATP
O

Answers

Answer:

At glycolysis stage, the net ATP production is 2 ATP.

Answer:

Explanation:

Describe the uses of model organisms

Answers

A model organisms is a species that has been widely studied, usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages. model organisms are non-human species that are used in the laboratory to help scientists understand biological processes.

(
First part is explaining second part is explaining the uses)

According to the law of Independence assorment

Answers

Answer:

What what

Explanation:

What is the relationship between observation and explanation

Answers

Observations are things you use your "five senses" to determine - how something smells, looks, tastes, sounds, or feels.Inference is something that you assume based on previous knowledge.

What happens in a photic part of a body of water

Answers

Answer:

Light can penetrate this upper level of the water, and photosynthetic organisms can function.

Explanation:

Phytoplankton are found in photic regions of marine biomes. They are primary producers that use the sun as their energy source. The word "photic" itself comes from the root "photo-" meaning light, so that's a good thing to remember if you're confused.

Answer:

The word photic means referring to light. This the zone of a body of water that light can penetrate and photosynthesis can still occur. It usually starts at the surface and goes to a depth that is about 1% of the light intensity that is found at the surface.

Explanation:

hope this helped :)

What pigments are.Give two examples.

Answers

pigments are colors of paint that are the base of others. no color make up a pigment I think red is one

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