Lasts are used for photosynthesis .
They have a double membrane around them.
The space inside is called the stroma. The space may contain starch grains and lipid bodies.
In the stroma are structures called thylakoids.
The thylakoids are stacked to form structures called grana.
The grana contain the pigment chlorophyll along with some secondary pigments.
DNA is inside the nucleus and the tRNA copies the message and the mRNA take it to the nucleus
According to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.
<h3>What is a tropism?</h3>
It is the response that plants or certain organs of them make to a stimulus that comes from the outside.
There are different classes of tropisms according to the nature of the stimulus, gravitropism, phototropism, heliotropism among others.
Therefore, we can conclude that according to the research, a tropism is a plant's response to external stimuli like light, gravity, and touch.
Learn more about a tropism here: brainly.com/question/9267510
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Answer: Each pair of chromosomes consists of two chromosomes that are similar in size and shape. They contain the same genes at the same loci, though they may have different alleles. These pairs of chromosomes are known as homologous chromosomes or homologs.
Explanation:
