How are living mammals classified into groups?

1 answer:

8 0

Mammals are type that feeds milk to its young and that usually has hair or fur covering most of its skin. Living mammals classified into groups through method of development. Mammals are warm-blooded higher vertebrates. E.g. Marsupials, monotremes and humans.

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With complete dominance inheritance, the heterozygotes show a(n) _____ phenotype but with incomplete dominance heterozygotes sho

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Answer:

Dominant, intermediate

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Oduvanchick [21]

A normal range in adults is generally considered to be 4.35 to 5.65 million red blood cells per microliter (mcL) of blood for men and 3.92 to 5.13 million red blood cells per mcL of blood for women. In children, the threshold for high red blood cell count varies with age and sex.

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Plant and animal cells are both eakaryetic cells and have many cell organisms in common. However the cells do have differences

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Answer:

Certain cell organelles are present only in plant cells like chloroplast and certain only in animal cell like centrioles.

Explanation:

The concept can be explained in three stages:

Organelles only in plant cells- Chloroplast is an organelle which is helpful in photosynthesis. Since animals don't perform photosynthesis, they don't need it. Plant cells also have a cell wall on top of a cell membrane.
Organelles only in animal cell- Centrioles are present in animal cells which help in movement through structures like flagella and cilia.
Organelles present in both plant and animal cells- Ribosomes, nucleus,mitochondria, golgi complex, cell vacuoles, lysosomes are present in both plant and animal cells.

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Cancer cells are different because they don't enter the G - 0 phase and they are likely to do which of the following Your answer

Allisa [31]

Answer:

c) repeat the cell cycle continuously

Explanation:

Cell division is a normal phenomenon for all cells as this is the way the cell reproduces and gets repaired in living organisms. However, some cells, due to mutation, keeps dividing and proliferating to form tumours. These cells are called CANCER cells. A normal cell undergoes cellular repair at certain checkpoints of the cell cycle. The checkpoints are necessary to determine a faulty cell and stop its division.

However, cancerous cells do not undergo any repair, which is why they do not enter the G0 phase as mentioned in the question. They keep on dividing out of control without death by repeating the cell cycle continuously.

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