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eduard
3 years ago
8

All food chains begin with ______. a. heterotrophs b. producers c. grasses d. bacteria

Biology
1 answer:
Olin [163]3 years ago
3 0
All food chains begin with producers
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What is difference between Microtubules and Microflaments?
Nina [5.8K]

Microfilaments

Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein. Microfilaments' association with the protein myosin is responsible for muscle contraction. Microfilaments can also carry out cellular movements including gliding, contraction, and cytokinesis.

Microtubules

Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta. Microtubules act as a scaffold to determine cell shape, and provide a set of "tracks" for cell organelles and vesicles to move on. Microtubules also form the spindle fibers for separating chromosomes during mitosis. When arranged in geometric patterns inside flagella and cilia, they are used for locomotion.

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5 0
3 years ago
The extracellular matrix is particularly important for which type of tissue?
Ipatiy [6.2K]
The connective tissues
7 0
2 years ago
For each of the formulas, classify the formula as either an empirical formula, a molecular formula, or both. NaHCO3 empirical mo
shutvik [7]

Answer:

Both

Explanation:

Baking soda is the common name of  sodium bicarbonate or sodium hydrogen carbonate. Both the empirical and molecular formula of sodium bicaronate is NaHCO3 .

Baking soda is soluble in water and has a molar mass of almost Molar mass: 84.007 g/mol.

If we look at molecular formula of NaHCO3, it has molar ratio of 1:1:1:3 and we can say that every thing in this molar ratio make whole mass as : 23g +1 g +12 g+48 g= 84 grams.

Since we know that empirical formula demonstrates the simplest ratio of elements present in a compound and molecular formula demonstrates the total molar ratio of each element in a compound, hence we see that its empirical and molecular formulas both are already simple because they have simplest ratio which cannot be simplified further.

Hope it help!



4 0
3 years ago
Read 2 more answers
Which organism is responsible for returning nutrients back to the soil
Tcecarenko [31]

According to the research, decomposers are organisms responsible for returning nutrients back to the soil.

<h3>What are decomposers?</h3>

They are different organisms such as bacteria and fungi whose main function is to break down the waste of plants and animals.

With the decomposition process where organic matter is processed into inorganic, simple elements (nutrients) reappear in the soil that are used as food by plants.

Therefore, we can conclude that according to the research, decomposers are organisms responsible for returning nutrients back to the soil.

Learn more about decomposers here: brainly.com/question/28066599

#SPJ1

8 0
1 year ago
The sapling of a pine trees grows to adulthood. What is the next step in its life cycle?
Keith_Richards [23]
Male and female cones Pine trees are angiosperms so they reproduce by using cones. When one grows to adulthood they produce cones to produce eggs and sperm So Fertilization
4 0
2 years ago
Read 2 more answers
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