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Marina86 [1]
3 years ago
10

Earth’s systems interact through _______. a. humans b. glacial episodes c. feedback mechanisms d. none of the above Please selec

t the best answer from the choices provided A B C D
Biology
2 answers:
QveST [7]3 years ago
6 0
I believe that the answer is C
exis [7]3 years ago
3 0

Earth’s systems interact through- c. feedback mechanisms

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Who envented the Word ugly
Cerrena [4.2K]
Nobody really it just developed <span>from Old Norse uggligr which means ‘to be dreaded, and from ugga ‘to dread.’ and they finally made ugly</span>
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3 years ago
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Due to a genetic modification, a mouse has no horizontal cells in its retinas. What impact will this have on the mouse’s vision?
Karolina [17]

Due to a genetic modification, a mouse has no horizontal cells in its retinas and it does not expresses the connexin26.

What is  horizontal cells?

The horizontal cells has receptive field with the neurobiotin and controlled by the electrical coupling.

Horizontal cells are the laterally interconnecting neurons having cell our bodies withinside the internal nuclear layer of the retina of vertebrate eyes. They assist combine and alter the enter from a couple of photoreceptor cells.

To read more about the horizontal cells refer link :

brainly.com/question/25508290

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6 0
2 years ago
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Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
umka2103 [35]

Answer:

The correct answer is- 4:0

Explanation:

Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

3 0
3 years ago
Need help. Will give brainliest. Answer all these questions.
agasfer [191]

Answer:

1. The daughter cells are genetically identical because they each contain the same diploid chromosome complement as the original parent cell. It can be seen in the stages shown above that mitosis maintains the chromosome number or complement of a cell.

2.  Much of the growth in an adult is attributed to the growth plate in the bones, which is line of cells at each end of the bone that divides rapidly during puberty. As the bones elongate, the muscles also elongate as they are stimulated to grow by stretching and hormonal changes. When puberty is completed, the growth plate calcifies into solid bone and can no longer grow. Muscles can continue to enlarge with athletic activities and can sometimes split with excessive force, but muscle cells typically do not continue to divide. Cells such as your skin, hair, and interior mucus surface cells continue to divide because they are in direct contact with things from the outside world. Bone marrow also continually divides to produce red and white blood cells. Many other cells in your body do not continue cell division.

3. The number of Chromosomes stay the same when the cell divides because before a cell divides it produces new copies of the Chromosomes in the nucleus so when division takes place two genetically identical 'daughter cells', containing the same genes, are formed.

4. – in cells capable of dividing, the period between cell divisions is called interphase – cells spend most of their time in interphase because this is the phase where they perform their functions (obtaining energy, synthesizing products, repair damage, fight disease, duplicate their genetic material and get ready for division)

5. Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many eukaryotic organisms including plants, animals, and fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. While all prokaryotes reproduce without the formation and fusion of gametes, mechanisms for lateral gene transfer such as conjugation, transformation and transduction can be likened to sexual reproduction in the sense of genetic recombination in meiosis.

6. Since each of the parent cell’s chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase. Once the chromatin has condensed into individual chromosomes, the genetically-identical chromosomes come together to form an “X” shape, called sister chromatids .

Explanation:

I hope it helps!!

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3 years ago
Dumping of organic wastes into a lake may result in anaerobic conditions in the lake because
adoni [48]
I believe the answer is C
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