BIOLOGY HIGH SCHOOL

A client with venous insufficiency is instructed to exercise, apply elastic stockings, and elevate the extremities. Which is the primary benefit for this nursing management regime?

Answers

Answer 1
Answer:

Answer:

These measures benefit the patient in improving circulation so that he can successfully envy the blood efficiently from the lower extremities to the heart.

The use of elastic stockings  is to increase the pressure and decrease the diameter of the veins, favoring venous return

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Who was the first person to develop the ideas of listing elements according to their mass?

Answers

Mendeleev was the first chemist to organize the periodic table according to their mass. He also created groups. 

Which of the following is a term used to describe the deep and flat portions of the ocean on either side of a mid-ocean ridge? A. abyssal plain B. guyot C. seamount D. trench

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Seamount and guyot are types of mountain - so we can reject those options, since we're looking for a flat surface, not a mountain.

A trench is a narrow ditch, or  depression so also it's not a plain

The correct answer is abyssal plain - it's a plain typically next to a continental rise (leading to the continent) and a mid-ocean ridge.

In general, how does biodiversity vary across the biosphere?

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Latitude and longitude spatial variation of temperature affects climate and then the distribution of biodiversity.

What is Biodiversity?

Biodiversity is defined as the diversity of all living things such as different plants, animals and microorganisms, the genetic information contained in them and the ecosystems they form which are generally explored at three levels - genetic diversity, species diversity and ecosystem diversity.

Biodiversity is essential to the processes that support all life on Earth, including humans. Without a wide range of animals, plants and microorganisms, we could not have the healthy ecosystems we rely on in the air we breathe and the food we eat and the people who value nature. This is affected by latitude and longitude variation of temperature.

Thus, Latitude and longitude spatial variation of temperature affects climate and then the distribution of biodiversity.

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Life needs energy, water, heat and nutrients. Reduce the availability of one or more of those things and biodiversity generally decreases.

Tropical forests tend to be more diverse than polar ice caps. However, arctic seas tend to be more biologically interesting than the middle of the Sahara. I bet this is what your homework is looking for but it's important to remember there are counterexamples.

How does this level of organization relate to cells ?to organ systems

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The cells together form tissues.
Tissues together make the organs.
Organs together the organ systems.

So, ultimately, cells are a part of organ systems.
Levels of OrganizationIn unicellular (single-celled) organisms, the single cell performs all life functions. It functions independently. However, multicellular (many celled) organisms have various levels of organization within them. Individual cells may perform specific functions and also work together for the good of the entire organism. The cells become dependent on one another.Multicellular organisms have the following 5 levels of organization ranging from simplest to most complex:LEVEL 1 - CellsAre the basic unit of structure and function in living things.
May serve a specific function within the organismExamples- blood cells, nerve cells, bone cells, etc.LEVEL 2 - TissuesMade up of cells that are similar in structure and function and which work together to perform a specific activity
Examples - blood, nervous, bone, etc. Humans have 4 basic tissues: connective, epithelial, muscle, and nerve.LEVEL 3 - OrgansMade up of tissues that work together to perform a specific activityExamples - heart, brain, skin, etc.LEVEL4 - Organ Systems 
Groups of two or more tissues that work together to perform a specific function for the organism.
Examples - circulatory system, nervous system, skeletal system, etc. 
The Human body has 11 organ systems - circulatory, digestive, endocrine, excretory (urinary), immune(lymphatic), integumentary, muscular, nervous, reproductive, respiratory, and skeletal.LEVEL 5 - Organisms 
Entire living things that can carry out all basic life processes. Meaning they can take in materials, release energy from food, release wastes, grow, respond to the environment, and reproduce. 
Usually made up of organ systems, but an organism may be made up of only one cell such as bacteria or protist.
Examples - bacteria, amoeba, mushroom, sunflower, human

Favorable adaptations are genetic characteristics that?

Answers

Characteristics that allow an organism to "better live" and survive.

Which of the following animals possess a central nervous system? jellyfish lobsters fish starfish

Answers

The answer is fish.

A central nervous system is a common characteristic among vertebrates, including fish. It receives information, integrates them, coordinate the activity of the body. In fish, the central nervous system consists of the brain, medulla oblongata, and spinal cord. 

Jellyfish has a nerve net that surrounds its whole body. The nerve net consists of interconnected nerve cells. Lobster has a nervous system made up of ganglia. Starfish has no brain. Its nervous system consists of a nerve ring around a mouth and radial nerves that run out of the ring.

Final answer:

Lobsters, fish, and starfish possess a central nervous system, while jellyfish do not.

Explanation:

The animals that possess a central nervous system from the given options are lobsters, fish, and starfish.

Jellyfish lack a true brain and have a system of connected nerve cells called a 'nerve net,' which is not considered a central nervous system.

Lobsters, fish, and starfish have a centralized nervoussystem, with lobsters and fish having a more complex organization of neurons including a brain, ganglia, and nerve cords.

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