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3 years ago

Molecular systematics might examine all of the following types of data EXCEPT ________.

Biology

2 answers:

lesya692 [45]3 years ago

7 0

Answer:

Anatomical features.

Explanation:

Molecular systematics may be defined as the use of the molecules to understand and deduce the evolutionary relationship. The classification of the organism is more easy by using the molecular systematics.

The plant evolutionary relationship can be made on the basis of the molecular systematics. The molecules that are used in the molecular systematics are proteins, amino acid, RNA and DNA sequence. The anatomical features might involve in the morphology systematics.

Thus, the correct answer is option (D).

Nadusha1986 [10]3 years ago

4 0

Answer:

D) anatomical features

Explanation:

The molecular systematics uses the data on the molecular structures to establish evolutionary relationships between the organisms. Techniques of DNA, RNA, and amino acid sequencing are used to compare the macromolecules of organisms. These studies provide information about the degree of relatedness among organisms. The closely related species share a higher degree of similarities in the sequences of these macromolecules. However, this branch of science does not include information about the anatomical and structural features to establish evolutionary relationships.

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The light micrograph shows dividing cells near the tip of an onion root. Identify a cell in each of the following stages: propha

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Mitotic division in onion root cells:

Prophase: the emergence of chromatin threads that form chromosomes, the chromosomes are visible and overlap.
Metaphase: chromosomes line up and line up in the middle of the equatorial plane. The centromere of the chromosome appears to have bonds with the kinetochores connected to the spindle threads.
Anaphase: the centromere of the chromosome undergoes division then the chromosomes are pulled by the spindle threads towards the two opposite poles and leave the center of the equator that looks empty.
Telophase: The cytoplasm divides into two identical-looking daughter cells. At the telophase stage, the process of cell division occurs in two parts and has identical properties.

Mitosis is a cell division through the stages of prophase, metaphase, anaphase, and telophase. The purpose of mitosis is for growth and regeneration which results in two daughter cells that are identical to the original parent cell. Mitosis occurs only once and lasts only during somatization.

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1 year ago

Write the common food chain of a pond ecosystem.

kozerog [31]

Explanation:

In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal

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3 years ago

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What kind of cells can develop from pluripotent stem cells?

siniylev [52]

Answer:

Pluripotent cells can give rise to all of the cell types that make up the body; embryonic stem cells are considered pluripotent. Multipotent cells can develop into more than one cell type, but are more limited than pluripotent cells; adult stem cells and cord blood stem cells are considered multipotent.

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3 years ago

In meiosis, what is a fertilized cell known as?

emmasim [6.3K]

Answer:

46 chromosomes and the zygote cell

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Shana is a competitive athlete who weighs 135 lb. she would like to plan a nutritionally adequate diet that provides enough carb

prisoha [69]

The correct answer is d.

Carbohydrates are a very important part of an athlete's diet, since they provide the necessary energy for competition and endurance, but also help in the process of muscle gain.

The amount of carbohydrates that Shana should consume depend heavily on the intensity of her exercise activities. For a moderate level of exercise, which equals to 1 hour of exercise daily, a person should consume 5-7 g/kg of body weight. For a high level of exercise (1-3 hours of daily exercise), a person should consume 6-10 g/kg.

Guessing that Shana will perform a high level of exercise and based on her weight (135 lb or 61.2 kg), Shana should consume 366 to 610 g of carbohydrates daily.

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3 years ago