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expeople1 [14]
3 years ago
15

How are scientific theories formed?

Biology
1 answer:
almond37 [142]3 years ago
3 0
Through a series of tests and data
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Think about all of the figures that illustrate tracheids. What are the functions for tracheids? How can you identify a tracheid
kotykmax [81]

Answer: The tracheids have important functions in the plant.

Explanation: The mechanical support is provided by the lignified walls of tracheid cell. the helps in other functions of the plant such as transporting water and getting the solute from the root to the stem and eventually the leaf of the plant.

The tracheids are most useful in the gymnosperms where elements need to be transported.

Identifying a tracheid in a cross section is quire easy as the tracheid cells fit into each other neatly and piled up similarly and have identical shapes as well which makes them obvious from other cells.              

The two examples of tracheid plans could be

  • pteridophytes
  • gymnosperms  

The most common thing that could be found in traceid plant is that this cells are mainly present for transporting either water other solutes in the plant body.

4 0
3 years ago
Which of the following organisms would be grouped closest
Ad libitum [116K]

Answer:

crab and lobster

Explanation:

they have the most similar genetic background

5 0
3 years ago
30 POINTS!!!!!!
nirvana33 [79]
The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
5 0
3 years ago
As Lisa drove home, she was suddenly alerted to the sound of a blaring horn and realized she had drifted off to sleep. Which ner
Dafna11 [192]

Answer:

B) sympathetic nervous system

Explanation:

The sympathetic nervous system controls the way the body quick involuntary response to harmful or stressful situations. A rush in hormones rapidly occur to quicken the body's alertness and heart rate to release extra blood to the muscles

It's route of Expression starts with the amygdala sending a distress signal to the hypothalamus which sends activation signals to the sympathetic nervous system via the autonomic nerves to the adrenal glands which help pump the hormone epinephrine (also known as adrenaline) into the bloodstream.

8 0
3 years ago
Rapid consumption of multiple drinks or jello shots puts a high concentration of alcohol in the body in a short time. why is thi
kupik [55]
Rapid consumption of alcohol in a very short period of time is very dangerous; due to delayed absorption the drinker will not know how really drunk he is and intoxication from that kind of drinking can last for days and even weeks.
Besides, such drinking pattern may make the whole body system to collapse causing death. Such drinking may also lead to alcohol induced psychiatric disorder.
7 0
3 years ago
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