Unlike DNA, RNA contains the nitrogenous base called a
Adenine
b
Phosphate group
c
Thymine
d
Uracil

Answer: B

Explanation:

Answer:

Resting potential is when there are more positively charged ions outside the cell than there are inside the cell, and this is the regular state.

Threshold potential is when there is a triggering event that depolarizes the cell body, where positively charged ions enter the cell body at a rapid rate.

Depolarization is when the membrane potential gets smaller, and the cell begins to equalize itself on the inside and out. Positively charged ions enter the negatively charged axon, resulting in the cell being positively charged.

Repolarization brings the cell back to its resting potential - the ion gates of the cell close, keeping the positively charged ions out, while the potassium gates remain open.

The problem is that the plant is not creating enough cellulose when it is unable to sustain its own weight.

Why is cellulose important to support the tree weight?

• When a plant is not making enough cellulose, it cannot survive. A molecule called cellulose is found in all living things.
• Cellulose is an essential element that plants need for strength in the case of plants.
• Plants have thick cell walls that surround their individual cells thanks to the presence of cellulose.
• Consequently, the various components of a plant, including the stem, branches, leaves, etc., have a strong character.
• A plant can't maintain itself and begins to bow when its cellulose content is lower than it should be.

learn more about cellulose here: brainly.com/question/25118189

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The plant is not producing enough cellulose.

Answer/ Explanation: Basophilic stippling is seen in excess of certain substances, such as lead or other heavy metals, in the body.

1. Basophilic Stippling: Basophilic stippling refers to the presence of small, dark blue or purple granules in red blood cells (RBCs) when viewed under a microscope. These granules are aggregates of ribosomes and RNA, and they appear as tiny dots or speckles within the RBCs.

2. Lead and Heavy Metal Poisoning: Basophilic stippling is commonly associated with lead poisoning or exposure to other heavy metals like arsenic or thallium. When these substances enter the bloodstream, they can affect the production and function of RBCs in the bone marrow.

3. Mechanism: The exact mechanism by which lead or other heavy metals cause basophilic stippling is not fully understood. However, it is believed that these substances interfere with the normal synthesis and maturation of RBCs, leading to the accumulation of ribosomes and RNA in the cells.

4. Diagnostic Significance: The presence of basophilic stippling in RBCs can be an important diagnostic clue for lead or heavy metal poisoning. It is often observed in blood smears of individuals with chronic exposure to these toxic substances. However, it is important to note that basophilic stippling is not specific to lead poisoning and can also be seen in other conditions such as certain anemias or myelodysplastic syndromes.

In summary, basophilic stippling is observed in excess of substances like lead or other heavy metals in the body. It is a microscopic finding characterized by the presence of small granules within red blood cells. The identification of basophilic stippling can be a useful indicator for the presence of lead or heavy metal poisoning, although further diagnostic tests may be required for confirmation.