BIOLOGY HIGH SCHOOL

Which phrase best describes a biome?a community and its abiotic features
an interacting community of different species
a group of individuals of the same species
a large area dominated by specific kinds of organisms

Answers

Answer 1
Answer: The right answer for the question that is being asked and shown above is that: "a large area dominated by specific kinds of organisms." The phrase that best describes a biome is that a large area dominated by specific kinds of organisms
Answer 2
Answer:

The  phrase best describes a biome is  large area dominated by specific kinds of organisms. The correct option is A.

A biome refers to a large geographical area on Earth that is characterized by distinct climate, vegetation, and animal life. It is defined by the dominant plant and animal species adapted to that particular environment. Each biome represents a unique ecosystem with specific abiotic (non-living) features, such as temperature, precipitation, soil type, and sunlight levels, which influence the types of organisms that can thrive in that region.

Thus, a biome can be described as a "large area dominated by specific kinds of organisms" due to the prevalence of certain species that have adapted to the environmental conditions prevalent in that biome.

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What role do the kidneys play in blood flow?

Answers

The kidney filters the blood, removing any waste products in the blood such as water, salts, urea and other products too. 

I hope that's the answer you are looking for

The kidneys are the filtering devices of blood. The kidneys remove waste products from metabolism such as urea, uric acid, and creatinine by producing and secreting urine. Urine may also contain sulfate and phenol waste and excess sodium, potassium, and chloride ions. The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

Resistance of the skin to invading organisms is __________.a. acquired immunity
b. humoral immunity
c. cellular immunity
d. innate immunity

Answers

The correct answer is (d.) innate immunity. The resistance of the skin to the invading organism is innate immunity. The innate immunity is comprising of the cells and mechanism for defending the body from pathogens. The cells recognize and respond to the pathogens that is acting to enter the body.

1) Which type of map best shows differences in elevation?A. Mercator

B. Robinson

C. gnomonic

D. topographic


2) What receives radio waves from space objects such as quasars?

A. GPS equipment

B. Landsat satellites

C. VLBI equipment

D. navigation satellites

Answers

1. Topographic map is the type of map that best shows differences in elevation. The correct option among all the options that are given in the question is the last option or option "D".

2. VLBI equipment is the equipment that receives radio waves from space objects such as quasars. The correct option among the options given is option "C".
1D - elevation is shown with shading or contour lines. 

A _____ accelerates a chemical reaction in a cell.

Answers

A catalyst accelerates a chemical reaction in a cell.

A catalyst is a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself.

Catalysts work by lowering the activation energy required for a reaction to occur. Activation energy is the energy barrier that must be overcome for a reaction to proceed.

By reducing the activation energy, a catalyst makes it easier for reactant molecules to come together and undergo chemical transformations, ultimately speeding up the reaction.

Catalysts are essential in biological systems as they enable various biochemical reactions to occur at the relatively mild conditions found inside cells, which would otherwise require higher temperatures or longer reaction times without catalysis.

In cells, enzymes are the most common type of catalysts. Enzymes are highly specific protein molecules that catalyze specific biochemical reactions, ensuring the efficient and precise functioning of cellular processes.

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Answer:

catalyst

Explanation:

Why do classification systems change over time?

Answers

Classification systems are only as good as the criteria used to create them. Over time, those criteria that are considered "obsolete" will be trashed and new criteria developed. In this way, systems stay both relevant but able to reach across generations.

Answer:

Scientists find new evidence of species. (A)

Explanation:

Thank me later B)

Why is a smaller volume of the cell better?

Answers

Cells are so small so the surface area and volume of them can be proportional to each other. This helps with the efficiency of the cell's absorption and waste expulsion processes. Also by the cell's smallness, communication from the nucleus to other organelles is fast and the cell can be regulated while the conditions for diffusion are still ideal.Cells are small because they need to be able to diffuse through materials easily. Also, materials inside and outside of the cell need to easily pass through the cell membrane, which makes it harder and slower for the materials to pass through the cell membrane
Cells are small because the ratio of surface area to volume is the most efficient at their size. This is because when you have a lot of small objects vs a few big objects the surface area is much larger in relation to volume. Another reason is when the cells are small and plentiful, they are easier to replicate and replace when damaged.
If a cell grows beyond a certain size, materials will not be able to pass through the membrane fast enough to accommodate the inside of the cell. So when the cell reaches a size too large, it will divide into smaller cells in order to maintain a surface area/volume ratio that is more favorable to the functioning of the cell. Therefore, cells remain small in order to survive Cells are so small because they must constantly interact with their surrounding environments. This interaction causes cells to replicate themselves by breaking large molecules into smaller ones which allows for the entire surface area of the cell to be in contact with the environment once again. Environmental contact is vital to cells in order for nutrients and other items to pass through the cell membrane for nourishment. Cells are also so small because it is simply easier to replace them without disrupting the functioning of other cells within the normal environment (ex: human body or plant cells).
Cells are so small because they are easier to replace, and a cell needs to be small to be able to perform the tasks a cell needs to do. If cells were bigger it would be harder for the body to replace the cell without disrupting what is going on in the body and delaying a process. Also since the cells are so small it is easier for them to get the nutrients they need and to get rid of waste.
The reason why cells are small is because they are always interacting with the environment around them. In other words, material is always diffusing in or out of the cell through the plasma membrane. If a cell were to grow larger the internal volume increases, as does the surface area of the cell. However, the volume increases at a faster rate than the surface area. So if the cell reaches a large size it must divide or else it will pop. This is because the surface area isn't large enough to occupy the volume the cell holds.
Cells are so small because if their surface area exceeds the volume, then it would require too much energy to keep the cell functioning. By being so small, they are far more sufficient than they would be if they were larger. This is a similar concept with insects. Most insects reach a point where they don't grow any larger because once they are too big, it takes too much energy to keep their bodies functioning. The smaller the cells, the easier it is to produce energy, and to allow materials to flow into and out of the cell. If cells get too big, they require too much energy and will no longer be able to allow material to flow in or out.
There are a few reasons why cells are so small. The smaller the cell is the faster it can communicate which means that it will be able to diffuse faster and with much less complications. Also since cells are small, they can go through reproduction smaller. Just think if we had large cells to reproduce? That might take much longer. If the cells are small, they also wont destruct as easy due to the tough cell walls around a smaller cell. If a bigger cell had the same cell wall, i think it would be easier to be damaged. So the main point about our cells being small is that they are all around faster and more efficient.
-Cells have such a small size for their own benefit. First they are small in size to allow nutrients and other materials to diffuse through the cell membrane, they keep a small ratio of surface area to volume. Also the size of cells makes them easier to reproduce and replace, as this is a constant process.
Cells are so small because they need to minimize the distance between their nucleus and the other organelles that it must constantly regulate. A smaller cell maximizes the speed that intercellular communications can happen, yet still provides ideal conditions for diffusion. If cells were larger, the distance between their nucleus and organelles would be increased, therefore decreasing the maximum speed of the intercellular communications.
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