Why do complex organisms need specialized cells?

Answers

Answer 1

Answer: Because these complex multicellular organisms have many functions and are interdependent with other cells to survive. Also, because of mitosis the organism is able to grow and communicate with other surrounding cells forming a bigger and organized system of cells.

A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.
The advantage is that eukaryotic cells have a nucleus which functions formally as to store the DNA of the cell which can translate into many functions such as cell division and work structure between cells that forms the hierarchial function to tissues.

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If an oxygen atom has 8 protons and 8 neutrons in the nucleus, what is the mass number ofoxygen?

Answers

If you look at a periodic table, it gives you the mass number of oxygen.
It’s 15.999

Final answer:

The mass number of an oxygen atom with 8 protons and 8 neutrons is 16. The mass number of an atom is the total number of protons and neutrons in the nucleus. This atom is an isotope of oxygen, called oxygen-16.

Explanation:

The mass number of an oxygen atom that has 8 protons and 8 neutrons in the nucleus is 16.

The mass number of an atom is the total number of protons and neutrons in its nucleus. The number of protons in an atom is also the atomic number, which identifies the element. In the case of oxygen, the atomic number is 8, because there are 8 protons in the nucleus.

Neutrons are subatomic particles that, together with protons, make up the majority of an atom's mass. Neutrons and protons have approximately the same mass, while electrons are much lighter. Therefore, the mass number, which represents the sum of the number of protons and neutrons, provides a good estimate of the mass of an atom.

In this case, the atom is an isotope of oxygen, known as oxygen-16, because it has 8 protons and 8 neutrons. Isotopes are atoms of the same element that have different numbers of neutrons and therefore different mass numbers. Oxygen-16 is the most abundant isotope of oxygen, making up about 99.76% of all oxygen atoms.

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Cite a sentence in this excerpt from "The Yellow Wallpaper" by Charlotte Perkins Gilman suggest that the narrator’s husband has a condescending attitude toward her?

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The sentence that states by the narrator in the excerpt "The Yellow Wallpaper" by Charlotte Perkins Gilman that the husband has a condescending attitude towards her is "Bless her little heart!" said he with a big hug, "she shall be as sick as she pleases! But now let's improve the shining hours daytime by going to sleep, and talk about it in the morning!"

How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm is encased in a grain of pollen to travel to an egg. C. Spores can become sperm that will fertilize the egg. D. Self-fertilization is possible if no partner is available.

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The answer is A, a sperm cell and an egg cell combine to form an embryo. Reproduction in living things, regardless of whether plant or creature, by and large, happens in cycles. All plants and creatures have life cycles. Some life cycles are more intricate than others, yet certain components have a tendency to be general and apply pretty much similarly to both plants and creatures.

The correct answer is A. i the process of fertilization, the male gamete (sperm), and the female gamete (ovum), fuse together and embryo is formed. Embryo develops into foetus, and a new organism is formed. Fertlisation can be internal or external (aquatic animals).

Northern lights or auroras can be seen within the _____ sub-layer.

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The answer is Ionosphere. Northern lights or auroras can be seen within the Ionosphere sub-layer. The ionosphere is the layer of the Earth's atmosphere that contains a large amount of ions and free electrons, it is also able to reflect radio waves, it can also conduct electricity.

Northern lights or auroras can be seen within the ionosphere sub-layer.

Which piece of equipment would give the MOST accurate measurement of 45 mL of a liquid?

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The answer is a 50 mL graduated cylinder.

Graduated cylinders are used for volume measurement. They have graduations each 10 mL and further graduations every 1 mL or more, depending on the total volume that can be measured in the cylinder. The smaller its diameter is, the more precisely it is. It is more accurate than graduated beakers or flasks, which are usually used for gross estimates.

The blood type AB is an example of complete or incomplete dominance.

Answers

Answer:complete

Explanation:

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