BIOLOGY HIGH SCHOOL

Skin color is an ______ trait.

Answers

Answer 1
Answer: it is a hereditary trait..
Answer 2
Answer: hereditary that is the answer

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Explain why multicellular organisms require a ventilation system?? include reasons on
surface area to volume ratio
cells depp within the body
and number of cells

Answers

Ventilation maintains a steep concentration gradient, blood at the exchange surface usually has lower O2 and higher CO2 content than the air (of for fish, the water) at the exchange surface. This is what allows for diffusion of O2 into the blood and CO2 out of the blood. Multicellular organisms have a greater number of cells so will have a higher energy demand than single cellular organisms, this demand can only be met by allowing the cells to respire, a ventilation system brings oxygen molecules which are a raw product of respiration into the hemoglobin of the blood to be transported to tissues. As surface area : volume ratio is very low so if there was no ventilation system and the organism instead relied on exchange of materials through the exposed skin it would be very difficult to met the high energy demand as less O2 and CO2 would be able to be exchanged.

In multicellular organisms, the division of labor provided by these bodies grouped into specialized devices imposes a number of constraints.

One of the constraints is that it is necessary for all cells in the body to be well supplied with both nutrients and oxygen. The transition to multicellularity requires the establishment of a circulatory system and a respiratory system for the supply and purification systems for the disposal of waste.

The amount of oxygen required to breathe depends on:

Ratio surface / volume plus it is small and the intake by the respiratory system must be important.

The depth of the cells, which evolves proportionally with the oxygen supply required.

The number of cells that also evolves proportionally with the oxygen supply required.

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?

Answers

The answer is that a unicellular organism would swell and burst.

In a hypotonic solution the water concentration of the cell's cytoplasm is lower then that of the hypotonic solution. If unicellular organism is exposed to a hypotonic solution, the water from the solution will enter the organism by the process called osmosis. The aim is to balance water concentration on the inside and outside of the organism. But, that water entering the cytoplasm of the cell will make pressure on the cell membrane. If the excess water cannot be removed from the organism, it will swell and burst.

Answer:

It would swell and then burst.

Explanation:

1. the correct flow of energy using the following terminology (decomposer,Sequence consumer, sunlight, producer)

Answers

Sunlight, Producer, Consumer, then Decomposer. Hope this helped!
sunlight, producer, consumer, decomposer. the all over again 

Which of the following is ​NOT ​ a method for developing organisms with desirable traits? a. Genetic Engineeringb. Artificial Selection
c. Selective Breeding
d. Evolution

Answers

Answer:

A

Explanation:

Sry if incorrect

Which statement illustrates bias in scientific research?A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.

A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.

An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.

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. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

The combined alleles of all the individuals in a population are called the ?

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The combined alleles of all the individuals in a population are called the gene pool. It refers to different types of genes that exist within an interbreeding population, i.e. the organisms that mate with each other, with the same type of organism, within the same population.
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