Ans.
In flowering plants, the male reproductive part or stamen is made up of a stack-like structure, known as filament and an ovule-like structure, known as anther. In anthers, microsporangia are present that produce pollen through mitosis.
Thus, 'if anthers are removed from a flower, it will not be able to form seeds as seeds are developed from zygote, that forms by the fusion of male gamete (pollen) and female gamete (ovum).'
The influx of positive charges makes the membrane potential more positive and is known as depolarization.
<h3>
What makes the membrane more positive charge ?</h3>
The membrane potential normally becomes more positive in response to neurotransmitters that open Na+ channels, more negatively in response to those that open K+ channels, and vice versa in response to neurotransmitters that inhibit these channels.
<h3>What does polarization mean?</h3>
The orientation dispersion of the electromagnetic waves that make up light beams is referred to as polarization. Unpolarized (uniformly mixed orientations), linearly polarized (fixed orientations), and circularly polarized are some of the different polarization states that light can take on (rotating field about the line of sight).
<h3>How membrane is affected by polarization and depolarization?</h3>
At a specific location on the neuron's membrane, hyperpolarization occurs when the membrane potential increases, and depolarization occurs when the membrane potential decreases (more positive).
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Answer:
The smallest living things are single cells, and cells are the functional units of multicellular organisms.
Explanation:
Based on the information provided within the question, from the answers provided the only statement that is one or the three parts of cell theory is that the smallest living things are single cells, and cells are the functional units of multi-cellular organisms. Which although phrased differently it is explaining that all living things are made up of cells, from the smallest one celled organisms to multi-cellular organisms like us.
The other two parts of cell theory are that all living cells come from pre-existing cells by a process called cell division and that the cell is the fundamental unit of structure and function in all living organisms. Which the other answers provided do not match.
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