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Anon25 [30]
2 years ago
7

5. Do some research to answer these questions: Who invented the metal detector? Why? What are its limitations?

Biology
1 answer:
vesna_86 [32]2 years ago
4 0
Conceptualize: The operation of metal detectors is based upon the principles of electromagnetic induction. Metal detectors contain one or more inductor coils that are used to interact with metallic elements on the ground.

Analyze: Alexander graham bell invented the first crude metal detector in 1881. As president James Garfield lay dying of an assassin's bullet in 1881, hurriedly invented a metal detector in unsuccessful attempt to locate the fatal slug.
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The model shows a cellular process that occurs in every cell in eukaryotic organisms.
Whitepunk [10]

Answer:

The correct answer is - create polypeptide and eventually proteins for gene expression.

Explanation:

This model is representing the translation process in protein synthesis which takes place in the cytoplasm of the cell and results in forming proteins from the information carried by mRNA from DNA in a code. The translation is the process that translates the code, carried out by mRNA with help of ribosome and tRNA, into a chain of amino acids called polypeptide chain that forms eventually in protein.

1. mRNA strand and ribosome present of ER translate codes into a protein.

2. Amino acids are transferred by the tRNA molecules to the ribosomes.

3. mRNA and tRNA bases are paired and amino acids are left behind to create polypeptide.

4 0
3 years ago
Upon exposure to blue light, plants not only begin to grow toward the light, but move their chloroplasts to the sunny side of ea
Ne4ueva [31]

Answer:

A) maximizes light absorption by the chloroplasts for photosynthesis

Explanation:

Chloroplasts are the double membrane-bound organelles present in the leaf cells. Chloroplasts contain light-absorbing pigment chlorophyll that absorbs maximum light of blue and red wavelengths.

Absorption of light by chlorophyll pigments drives the light reactions of photosynthesis which in turn provide ATP and NADPH to fix carbon dioxide gas into glucose by light-independent reactions. The process of photosynthesis produces glucose which in turn serves as an energy source for plants and supports their growth and development.

Therefore, exposure to blue light increases the rate of photosynthesis as chloroplasts in the leaf cells are aligned to absorb maximum blue light to support photosynthesis. And a higher rate of photosynthesis produces more glucose to support the growth of the plants.

3 0
4 years ago
The sphincter between the stomach and the small intestine is the
Over [174]

Answer:

defined

Explanation:

3 0
3 years ago
Briefly describe asexual reproduction in plants
AysviL [449]

Asexual reproduction requires only one parent. Since there is only one parent, there is no exchanging of genetic information, and the offspring are clones of the parent. Asexual reproduction in plants can occur in a variety of forms, including budding, vegetative propagation, and fragmentation. Let's discuss these reproduction types.

Have you ever found an old potato hidden in the back of a cabinet in your kitchen? If a potato sits around for a long time, it will have many small growths, commonly referred to as 'eyes'. Each of these sprouts can be cut from the potato and planted. They will grow into a clone of the original plant that produced the potato. This is a classic example of budding.

For an example of vegetative propagation, let's look at the strawberry plant. If you plant strawberries, you will notice that a row of plants will quickly spread into a large mass of plants. This is because they do a type of vegetative propagation by producing runners. Strawberry plants send out horizontal stems known as stolons. These stems will work their way into the ground in places and form roots, and eventually a new plant will grow.

A third type of asexual reproduction in plants is called fragmentation. This type of asexual reproduction is often used by nurseries and greenhouses to produce plants quickly. For many plants, a clone can be created by breaking off a portion of the stem and placing it in soil or water, depending on the plant. This also happens naturally when small parts of a plant fall off onto the soil and begin to grow into a new plant. An example of fragmentation occurs in liverwort plants, whose small stems or leaves are often broken off by animals or wind and then grow into clones of the parent plant when they land in the soil. I hope this helps 

3 0
3 years ago
Read 2 more answers
At what phase of cell division or cell do the nuclear and cytoplasmic contents duplicate?​
Delvig [45]

Answer:The cell cycle has two major phases: interphase and the mitotic phase. During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated and the cell divides.

Explanation:

5 0
3 years ago
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