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Leviafan [203]
3 years ago
5

Which of the following is an organism whose cells do not have a membrane-

Biology
2 answers:
oksian1 [2.3K]3 years ago
8 0
D. A plant has an acellular membrane. Eukaryotes and prokaryotes are two types of cells that can evolve into plants or animals. All animals have a nucleus, mitochondria, and a plasma membrane. Hope that helps!
satela [25.4K]3 years ago
4 0

Answer:

C. A prokaryote

Explanation:

A prokaryote is an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles.

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The subcutaneous layer is mainly made of ___.
Gelneren [198K]

The subcutaneous layer is mainly made of  <u>fat tissue.</u>

One of the three layers of skin is the subcutaneous layer, which lies below the dermis. The deepest layer of the skin is primarily made up of fat. It also contains collagen, blood vessels and nerves. The body's fat creates a layer that protects the organs from damage and acts as insulation against the cold. Additionally, it gives the skin structural support.

The depth of the subcutaneous layer in the body's abdominal region, which frequently has higher percentages of fat, can reach three centimeters. The thickness is determined by the person's overall body fat percentage. Other places, like the eyelids, have a subcutaneous layer that is as thin as 1 millimeter and devoid of fat.

The subcutaneous layer has many functions, including insulation, thermoregulation, shock absorption, structural support, and energy storage.

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7 0
2 years ago
When the moon orbits the Earth and the_____of the moon shines on the Earth we have a___eclipse.
MakcuM [25]

Answer:

Shadow, an d total

Explanation:

5 0
2 years ago
Develop a mind map representing the narrative of the historical development of technology and the impact of IKS throughout the h
My name is Ann [436]

Indigenous Information System (IKS) is the body of knowledge that communities have accumulated over many generations as a result of their interactions with the environment.

<h3>Indigenous Knowledge System (IKS): What is it?</h3>

The technological, economic, philosophical, educational, and governing systems are all included in the indigenous knowledge system.

Prior to the development of the contemporary scientific knowledge system, indigenous societies established their own knowledge, which is included in indigenous knowledge systems (IKS).

Acupuncture from China is an illustration of IKS. Through the preservation and wise use of biodiversity, it may significantly advance sustainable development.

There is a definite need to preserve these systems, acknowledge their worth, and stop their destruction in order to strengthen indigenous knowledge practices and cultures.

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brainly.com/question/15518042

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4 0
2 years ago
Briefly describe how amniocentesis and chorionic villi sampling are used in genetic screening.
bearhunter [10]

Answer:

Amniocentesis is an invasive method that involves the aspiration of 10-20 ml of fetal water through the abdominal wall under ultrasound-guided control. In most cases, the procedure is performed around the 16th week of gestation. The fetal water sample contains fetal cells, mostly cells of fetal skin and the epithelium of the urinary tract.

Chorionic Villus Sampling (CVS) biopsy is performed between weeks 11 and 12 of gestation. During biopsy, with ultrasound guidance, the tissue of the chorionic fossa is aspirated mainly across the abdomen (transabdominal pathway). The biopsy specimen is of fetal origin and belongs to the outer layer of blastocyst cells or the trophoblast (outer layer of the placenta). Very often, the biopsy specimen contains tissue of the decidua (mucous membrane of the uterus) that is of maternal origin, and it is necessary to remove the maternal tissue before any treatment of the sample.

Explanation:

The amniocentesis procedure carries a risk of miscarriage of 0.5-1%.  After aspiration of the fruit of the water, the sample is centrifuged to separate the cells from the amniotic fluid. Separate cells are seeded on a nutrient medium (cell culture) that stimulates cell growth. After about 14 days, the cell culture is further used for various genetic or biochemical analyzes such as karyotyping.

The advantage of chorionic biopsy is the amount of biological material, which is sufficient for the whole a number of different laboratory procedures. Also, a great advantage is the timing of the procedure as it allows diagnosis in the first trimester of pregnancy, but the chorionic biopsy procedure itself carries a risk of miscarriage of 1-2%.

3 0
3 years ago
What is the missing base for 9?
ankoles [38]
In geometry the base is the side or face of a geometric figure to which an altitude is drawn,
5 0
3 years ago
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