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Lady bird [3.3K]
3 years ago
13

Double-layered sac. the innermost layer of this sac immediately surrounds the heart and is called the ____________________ peric

ardium (also called _______________). at the base of the heart, this inner layer folds back on itself to become the ________________ pericardium. between the layers of this sac is a potential space called the ______________ cavity and it is filled with _________ fluid. what is the function of this fluid?
Biology
1 answer:
dedylja [7]3 years ago
6 0
All i know is 'hat, it is composed of three layers
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based on what learned in bio202, arrange the following five events in an order that explains the mass flow of materials in the p
svp [43]

The correct order of the following events on the mass flow of materials in the phloem is:

  1. Leaf cells produce sugar by photosynthesis.
  2. Solutes are actively transported into sieve tubes.
  3. Water diffuses into the sieve tubes.
  4. Sugar moves down the stem.

Correct answer: letter C.

This is because the mass flow of materials in the phloem must pass through all these processes in a consecutive and orderly manner, from the cell to the stem, in order to allow nutrients and other vital materials to reach from the plant roots to the leaves and fruits.

<h3>How is this transport of nutrients and other vital materials achieved?</h3>

This is accomplished by the transport of solutes through the phloem's network of channels, which contain fluids, mineral salts, vitamins and other nutrients essential to plant health. Mass flow also helps distribute oxygen and carbon dioxide to all parts of the plant. These materials are necessary for plant respiration and growth.

Learn more about the phloem:

brainly.com/question/9850143

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5 0
10 months ago
While walking along a streambed, you encounter a reedy seedless plant. upon closer inspection, you determine that the stems cont
lara [203]
For the answer to the question above, this plant is more likely a kind of "liverwort plant"
they are flowerless and they are spore-producing plants and non-vascular. There are estimated of 9,000 species of this kind of plant.
I hope this helped
3 0
3 years ago
Sucrose is made of which simple sugars?
Nadya [2.5K]

Answer:

it is made of

glucose and fructose.

5 0
3 years ago
Read 2 more answers
الخصائص العامة للنباتات
lys-0071 [83]
النّباتات كائنات حيّة تنتشر في جميع أنحاء العالم، وهي تعيش على اليابسة أو في المسطحات المائيّة، وتضم مملكة النّباتات أكثر من 350,000 نوع من الأشجار، والشّجيرات، والأعشاب، والسّراخس.[١] تنتج النّباتات غذاءها بنفسها عن طريق عملية البناء الضّوئي، وهي عملية تحدث داخل البلاستيدات الخضراء التي تحتوي على مادة الكلوروفيل التي تحوّل الطّاقة الشّمسيّة وغاز ثاني أكسيد الكربون إلى غذاء.7
5 0
2 years ago
Put these steps in the order in which they occur in light-dependent reactions. Electrons are transferred from photosystem II to
erma4kov [3.2K]

Answer:

The correct order of the steps of light dependent reaction is described below

Explanation:

Step 1 light energy is absorbed and transferred to the reaction center

Step 2 water molecule is splited

Step 3  Electrons are transferred from photosystem 2 to photosystem 1

Step 4  ATP is synthesized from ADP and inorganic phosphate.

5 0
3 years ago
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