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GuDViN [60]
3 years ago
14

Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work afte

r he returned home from his voyage and studying the selective breeding of pigeons prompted him to ask which question?
Biology
1 answer:
Ronch [10]3 years ago
6 0

Answer:

How are traits passed on from one generation to the next?

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A frog with a mass of 0.29kg hops up in the air. At the highest point in the hop, the frog has a gravitational potential energy
PtichkaEL [24]

Answer:

0.27m

Explanation:

To get the energy

Potential energy= Mgh

M is Mass

G is acceleration due to gravity

H is height..

M= 0.29kg, h= ?

P=0.759. g=9.8m/s

Therefore,

0.759=0.29×9.8×h

H= 0.759÷2.842

H= 0.27m

8 0
3 years ago
The energy usage per capita in Africa and Asia have grown tremendously the last 50 years. Which of these would be a good explana
aev [14]

Answer:

B.) These continents have become more industrialized.

Explanation:

These continents have become more industrialized. As they have become more industrialized, the economy grows and so does the need for energy.

6 0
3 years ago
These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses. ______
sertanlavr [38]

Answer:

The best answer to the question: These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses, would be: T-Tubules.

Explanation:

In both skeletal and cardiac muscle, not smooth muscle, because of the way that the muscle fibers are conformed into tight bundles of sarcomeres (skeletal muscle) and myocardiocytes (cardiac muscle), there is a need for a series of structures that will ensure that when there is a stimulus from the nervous systems, these stimulus will propagate to all the cells in the fibers, and not just one.

Aside from counting with a neuromuscular motor plate, which will receive the neurotransmitter from the nerve endings and produce the appropriate reactions, as well as propagate that reaction to all the cells that are being stimulated, muscle fibers also have a structure known as T-Tubules. T-Tubules are formations much like roadways of cell plasma membrane that connect not just one, but all the cells within a muscle fiber so that once a stimulus comes, all the cells will initiate the process of calcium release and action potential propagation. These T-Tubules will ensure that electrical impulses reach all muscle cells and that all cells react at the same time as needed.

5 0
3 years ago
Consider this statement, which survey respondents are asked to agree or
Ratling [72]

Answer: government should play a major role in providing food and shelter to families in need.

Explanation:

3 0
3 years ago
Read 2 more answers
Who/What ends a food chain?
seraphim [82]

Answer

decomposers end the food chain but technically the food chain never stops

7 0
3 years ago
Read 2 more answers
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