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Deffense [45]
3 years ago
5

Coal is made from the remains of dead plants. it is made of carbon and other elements. is coal a mineral? a,yes, because it is f

ormed naturally.
b. yes, because it contains carbon.
c. no, because it is created artificially.
d. no, because it is an organic substance.
Biology
1 answer:
kkurt [141]3 years ago
4 0
B. yes, because it contains carbon.
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I am a component of eukaryotic cells, a lattice-like structure of microtubules that provides support in the cytoplasm and anchor
lidiya [134]

Answer:

Cytoskeleton is the lattice-like structure of microtubules that support the cytoplasm and anchors organelles and also function in cytoplasmic streaming during cell crawling.

Explanation:

A group or network of protein fibers found within the cytoplasm is known as the cytoskeleton. It provides structural support for cells and is responsible for cell movement, cell stability, cell reproduction, cytoplasmic streaming or transportation of substances, etc. The movement of the cytoplasm within a plant or animal cell which helps to transport nutrients, proteins, and organelles within the cells is known as cytoplasmic streaming or protoplasmic streaming. The main three different types of protein-based filaments found in the cytoskeleton are microtubules, intermediate filaments, and microfilaments.

  • Microtubules

They are small, thick tubes made up of a protein called tubulin. They help to maintain cell shape and structure and are a part of the mitotic spindle which pulls homologous chromosomes apart during the cell division. The structures involved in cell movements such as cilia and flagella are also made up of microtubules. They help to resist the compression of the cell, provide pathways for secretory vesicles to move through the cell and also have a role in positioning the organelles within the cell.

  • Microfilaments

They are thin filaments made up of a strong and flexible protein called actin. Actin filaments along with the protein myosin are responsible for cell movement and muscle contraction. Both proteins also have a role in splitting of a parent cell into daughter cells during cell division.

  • Intermediate Filaments

Their thickness is intermediate between the microfilaments (thinnest structure) and microtubules (thickest structure). They are made up of a protein called keratin and provide structure to the nuclear envelope and help anchor organelles together within a cell. Intermediate filaments along with the microtubules help to maintain cell shape and structure. They help to resist the tension of the cells and also link cells to other cells.

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3 years ago
Which change is not likely to help a community reduce its use of fossil fuels?
Anvisha [2.4K]

Answer:

B

Explanation:

Lowering gas price's will only make the community use more fossil fuels

8 0
3 years ago
The area of the cortex that is responsible for sensations of the full bladder and the feeling that your lungs will burst when yo
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Explanation:

The insular cortex is found in the visceral sensory area and receives sensory input from the thalamus to the CNS. They play a role in emotions including self awareness, motor control etc and they also play a part in the regulation of the body's homeostasis.

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3 years ago
PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!
Sophie [7]

Answer:

B. By increasing greenhouse gases and global warming

Explanation:

BRAINLIEST me pls

Have a nice day!

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An allogenic skin graft allows a person with a burn to receive skin from a donor patients are often given drugs that suppress th
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Most likely because the new skin from the skin graft is considered foreign and the body's initial response is to fight off foreign bodies. But the patient wants their body to accept the new skin so they take drugs to suppress the immune system's innate response to reject the skin.
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