Which microscope is the tool of choice when identifying the phenotype of a cell where the sample has been prepared with dye

Biology

2 answers:

Deffense [45]3 years ago

8 0

It is Electron Microscopy

olya-2409 [2.1K]3 years ago

3 0

Answer:

Electron Microscopy

Explanation:

Electron Microscopy is the technology which is used to for obtaining high-resolution pictures of a "biological and non-biological" specimen, there are two types of Electron Microscope such as "Scanning Electron Microscope and Transmission Electron Microscope".

Electron Microscopy it uses electrons instead of light to obtain sample image, it uses electromagnets to focus the electron beams, it achieves higher magnification and resolution than the optical scopes.

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Which of these is NOT an interaction between a plant's root and shoot systems?

olga_2 [115]

Answer:

The stomata open to allow carbon dioxide to enter the leaves.

Explanation:

Higher plants are made up of two major system parts namely: shoot system and root system. The shoot system constitutes every part of the plant above the ground i.e leaves, fruits, stem etc. while the root system constitutes the part below ground i.e the roots. The shoot system and root system, however, interacts in several ways to ensure that the plant functions optimally. The ways they interact include:

- The roots (root system) absorb water from the soil, which is transported upwards to prevent leaves (shoot system) from drying up.

- The phloem, which is a conducting tissue, transports sugars (product of photosynthesis) from the leaves (shoot system) to the root nodules (root system) for storage.

- Nutrients are absorbed from the soil by the roots (root system) and moved to the stems (shoot system).

Note that, although it is true that "stomata in the leaves open to allow carbon dioxide to enter the leaves", there is no connection between the shoot and root system.

4 0

2 years ago

!!! Please answer this ASAP!!!

ValentinkaMS [17]

Chemotherapy targets fast growing cells , including cancer cells ,skin cells, Gastro intestinal cells, blood cells etc.

Explanation:

Chemotherapy refers to use of chemicals to treat diseases like, cancer.
This procedure involves the use of cytotoxic chemicals that inhibit mitosis.
Drugs used in Chemotherapy principally target fast growing cells of the body .
Thus along with cancer cells these drugs also effect normal body cells such as , blood cells, skin cells etc.
Damage to blood cells weakens the immune system and the patient is susceptible to other diseases also.
To avoid such situation chemotherapy is accompanied with other combination medicines.
Even after having several side effects chemotherapy is suggested as most suitable treatment to reduce symptoms of most type of cancer because it involves the introduction of drugs into the blood and thus can be targeted to any anatomical location in the body.