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Serhud [2]
4 years ago
11

Which of the following statements is true?

Biology
1 answer:
Anna35 [415]4 years ago
5 0

Answer:

B

Explanation:

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Cross section of different areas of the same plant show cells with very different structure. What does this tell you about the d
BaLLatris [955]

Explanation:

-these are likely different tissue systems or organs

-they each may execute different specified functions

Cells sharing a similar origin, group together in the body to form tissues; these typically share physical features and are arranged in regular patterns. All living things, grow, respire, reproduce etc. these processes are carried out by cells, which are thus integral to their survival.

Further Explanation:

These tissues form systems that may be

  • meristematic- temporary, found at growth regions called meristems; they are undifferentiated or incompletely differentiated and continuously undergo growth and division
  • non meristematic- permanent tissue, already differentiated and are made up of plant tissue that no longer divides

Meristems differentiate into three main plant tissue types, which make up several  tissues in various amounts:

  • ground
  • dermal
  • vascular tissues

Secondary tissue types are either complex, made up of several different call types, or simple, made up of the same cell type.  Dermal tissue covers the plant's outermost layer, and mediates gaseous exchange. While two types of complex vascular tissue, are the xylem and phloem.

Xylem vessel elements: mature xylem vessel is made up of dead cells called vessel elements aligned end-to-end where these ends have been dissolved and the protoplasm is absent. These form long, continuous tubes that facilitate the unobstructed flow of water and minerals to other areas within the plant.

Learn more about cellular life at brainly.com/question/11259903

Learn more about tissue types at brainly.com/question/8487952

#LearnWithBrainly

5 0
4 years ago
What are the advantages of interconnecting air sacs for birds?
MaRussiya [10]

Answer:

The answer to this question is given below in this explanation section.

Explanation:

               "advantages of interconnecting air sacs for birds"

The air sacs permit a unidirectional flow of air through the lungs.Unidirectional flow means that air moving through birds lungs is largely fresh air and has a higher oxygen content.In contrast air flow is bidirectional in mammals moving back and forth into and out of the lungs.As a result air coming into a mammals lung is mixed with old air has less oxygen. so in bird lungs,more oxygen is available to diffuse into the blood(avian respiratory system).

  • The air sacs are thin membrane structures connected to the primary or secondary bronchi  via ostia and they comprise most of the volume of the respiratory system.
  • Air sacs are poorly vascularized by the systemic circulation and do not directly  participate in significant gas exchange but act as a bellows to ventilate the lungs.In most species,there are nine air sacs which can be considered in cranial and caudal functional groups.
  • The cranial group consists of the paired cervical air sacs,the unpaired clavicular air sacs and the paired cranial thoracic air sacs.
4 0
3 years ago
Read 2 more answers
Which state was the pioneer to start fighting air pollution?
omeli [17]

Answer:

California

Explanation:

The first recognized "smog" fightning occured back in Los Angeles in summer of 1943

5 0
2 years ago
What is pepsinogen and how does it helps in digestion of protein ? ​
Mila [183]

Answer:

Pepsinogen is a powerful and abundant protein digestive enzyme secreted by the gastric chief cells as a proenzyme and then converted by gastric acid in the gastric lumen to the active enzyme pepsin.

Explanation:

The role of pepsin and its precursor in protein digestion was first described in the 19th century.

5 0
3 years ago
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Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. Starch is which
puteri [66]

Answer:

C6H10O5

Explanation:

6 0
3 years ago
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