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Zolol [24]
3 years ago
11

The main structural component of plant cell walls is __which is a type of ___

Biology
2 answers:
Paha777 [63]3 years ago
5 0
To compromise pectic compounds which is a type of plant cell wall
wlad13 [49]3 years ago
5 0

Answer:

Cellulose - Carbohydrate

Explanation:

Study Island

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The Scientific Metho
Xelga [282]

Answer:

a.)

Explanation:

8 0
3 years ago
Which of the following occurrences affects the Earth's water systems?
Fiesta28 [93]

D is the correct answer

7 0
3 years ago
Please select the word from the list that best fits the definition naturally occurring solid mixture of one or more minerals and
Hatshy [7]
<h3><u>Answer;</u></h3>

Rock

<h3><u>Explanation</u>;</h3>
  • Rock is a naturally occurring solid mixture of one or more minerals or organic matter.
  • <em><u>Rock is a solid mixture of crystals of one or more minerals, or organic matter. </u></em>
  • <em><u>Rocks are classified by how they are formed, their composition, and texture. </u></em>Rock has been an important natural resource as long as humans have existed.
  • The rock cycle is the series of processes in which a rock type changes from one type to another.
3 0
3 years ago
BRAINLIEST!! According to embryology, why do fish and birds have a common ancestor?
Blizzard [7]

Answer:

Both fish and bird embryos exhibit gill slits and a tail.

Explanation:

According to embryology, all vertebrates exhibit similar traits and structures at their embryonic stage. It becomes very difficult to differentiate between the embryos of a fish, and that of a bird, or embryo of a fish, and a human. These traits, however, disappear, as the case may be, as the embryo develops into an adult. For example, in the case of the embryo of a fish, and a bird, both shows gills slits at their respective embryonic stage. However, the gill slits in fish develop into gills, whereas in the case of birds, it disappears as the embryo develops into an adult.

5 0
3 years ago
Read 2 more answers
According to the food and nutrition board (fnb) of the national academy of sciences, ______ of kilocalories should come from pro
DanielleElmas [232]
According to the Food and Nutrition Board, of the National Academy of Sciences, 10% to 35% of kilocalories should come from protein. 
There are six classes of food, but the three majors ones, that are require in large quantity are carbohydrates, proteins and fats and oils. The Food and Nutrition board gave recommendation about the quantity of these classes of food that should be taken on a daily basis. It is recommended that, 45% to 65%  of kilocalories should come from carbohydrates while 20% to 35% come from fat.
8 0
3 years ago
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