The statement that best explains the evolution of gymnosperm plants is that they evolved after the seedless vascular plants.
Gymnosperms are classes of plants that do not produce fruits but rather bear seeds structures called cones.
Gymnosperms and angiosperms both belong to the class of plants called higher plants because they have mechanisms for conducting and transporting water and nutrients.
Gymnosperms are believed to evolve before angiosperms or flowering plants but after seedless vascular plants called pteridophytes.
Therefore, the statement that best explains the evolution of gymnosperm plants is that they evolved after the seedless vascular plants.
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Population density is calculated by dividing the total population of a specific area by the total land area of that area.
The formula for population density is:
Population density = Total population / Total land area
To calculate population density, you need to know the total population and the total land area of the area you are studying. For example, let's say we want to calculate the population density of a city with a population of 500,000 people and a land area of 100 square kilometers.
Using the formula, we can calculate the population density as follows:
Population density = 500,000 / 100 = 5,000 people per square kilometer
This means that in the city we are studying, there are approximately 5,000 people living in each square kilometer of land.
Population density is an important measure that helps us understand how crowded or sparse a particular area is in terms of population. It is often used to compare different regions or to analyze population trends over time. By calculating population density, we can gain insights into the distribution of people and understand the impact of population growth on a specific area.
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Answer:
It's A
Explanation: took the test
Answer:
Transport
Explanation:
Living organisms are characterized by essential day-to-day activities which they undergo to sustain their life. One of these life processes is called TRANSPORT, which involves the circulation and absorption of nutrients.
Transportation is a life process where substances synthesized or absorbed in one part of the body are carried to other parts of the body. This life process is important in plant and animals as it leads to movement of nutrient, water, mineral, gases etc. In humans, circulatory system is responsible for this process of transportation.
b.) The relationship is mutually beneficial.
c.) They share the same niche.
d.) One species benefits, while the other is neither helped nor harmed.
Answer:
C (they share the same niche)
Explanation:
Competition is a relationship between organisms resulting in a contest when both are trying to use the same resources related to their growth, reproduction and survivability. It is as a result of limited resources. Competition occurs in virtually all ecosystems in nature. This relationship develops when more than one organism in an environment has the same need for resources (niche) as another, to survive.
Each organism has a specific place in the ecosystem called NICHE. A species' niche is basically its ecological role or the function to which it is especially suited, which is defined by the set of conditions, resources and interactions it needs or can use.
The competitive exclusion principle says that two species can't coexist if they occupy exactly the same niche (competing for identical resources) or to put it in another way, two species in an ecosystem are bound to compete when they share the same niche (need for resources).