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CaHeK987 [17]
2 years ago
15

Why the edges of the leaves often have water droplets. What could be the reason for this?

Biology
1 answer:
Umnica [9.8K]2 years ago
8 0
The appearance of water droplets at the tips and edges of the leaves of a plant is caused by a secretory process called guttation. It often occurs under conditions of moist soil, high humidity, and relatively cool air and it usually occurs in the early morning.
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What is the species name for pezizales
ikadub [295]
The Pezizales are an order of the subphylum Pezizomycotina within the phylum Ascomycota.
7 0
2 years ago
Which of the following is NOT a function of hormones?
sammy [17]
<h2>Answer:</h2>

I believe the correct answer is D. React to stimuli from outside the body.

<h2>Explanation:</h2>

Hormones are types of proteins that produce responses hand in hand with neurons but they are much slower and longer lasting. They can act on the same cells and in that instance they will be called autocrine hormones. Those that act on neighbouring cells are called paracrine hormones while those that act on far away cells are called endocrine hormones.

<h2>Further Explanation:</h2><h3>a. Initiate behavior and reproduction:</h3>

This is a function of hormone(s). Hormones such as testosterone can initiate both behavior of an organism and also stimulate reproduction. Testosterone causes maturation of sex features and sperms in males to initiate reproduction. Other hormones with such functions include: Estrogen and adrenaline.

<h3>b. Coordinate the production and use of energy:</h3>

Some hormones conduct this function by regulation metabolism in the body. These include: Insulin in intake of glucose for energy and glucagon in maintaining blood glucose levels. Corticosterone also responds in stress to maintain energy.

<h3>c. Maintain nutrition and metabolism:</h3>

Nutrition can be maintained by hormones such as ghrelin that stimulates appetite, insulin in intake of glucose, leptin and glucagon.

<h3>d. React to stimuli from outside the body</h3>

This is not a function of a hormone but rather the function of a neuron. Neurons have specific structures called denrites that recieve signals/stimuli from outside the body then convert them to nerve impulses that are transmitted to the brain which produces another impulse to be taken to a specific site to produce a desired response.

Level: High Schoo;

5 0
3 years ago
An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero
larisa [96]

Answer:

Negatively repressible.

Explanation:

A control which occurs through repressor is known as negative control which may be inducible or repressible.

When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.

But here, the operator is active (induced) already so there is no need to induce the operon which means that it can only be repressed so that transcription could stop. So the answer is negatively repressible operon.

6 0
2 years ago
Which pair of nitrogenous bases will form a bond in a DNA molecule?
sashaice [31]
Adenine and thymine
cytosine to guanine
hope that helped
6 0
3 years ago
Read 2 more answers
Worksheet: DNA,RNA and Protein Synthesis
sineoko [7]
DNA<span> and </span>RNA<span> are nucleic acids found in the cells of living organisms. ... The </span>synthesis<span> of </span>proteins<span> starts with transcribing the instructions in </span>DNA<span> into mRNA. The mRNA is then carried out of the cell's nucleus into the cytoplasm, specifically into structures called ribosomes.</span>
3 0
2 years ago
Read 2 more answers
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