Spores are living organisms.
Spores are indeed living organisms, and this classification is based on fundamental biological characteristics. Living organisms exhibit certain key traits, such as growth, reproduction, response to stimuli, and metabolism. Spores, which are reproductive cells of fungi, plants, and some bacteria, fulfill these criteria.
In the process of sporulation, a parent organism produces spores as a means of reproduction. These spores contain genetic material and are capable of developing into new, fully functional organisms under suitable conditions. They have the ability to germinate, grow, and eventually reproduce, which are essential attributes of living organisms.
Additionally, spores can respond to environmental stimuli. For example, some fungi release spores when they detect favorable conditions for growth, ensuring their survival and proliferation. This ability to react to the environment further emphasizes their living nature.
In summary, spores are living organisms because they possess the vital characteristics of life, including the ability to grow, reproduce, and respond to stimuli. Their role in the life cycles of various organisms highlights their significance in nature.
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#SPJ11
C.differences in food preferences between two populations of birds
D.failure of sperm and egg production in hybrids between two populations of insects
Answer:
C.differences in food preferences between two populations of birds.
Explanation:
Reproductive isolation is a type of isolating mechanism which may further lead to speciation.
In this type of isolating mechanisms, the two types of organisms are isolated as they are unable to either mate or even if they mate, they fail to produce a viable progeny.
Reproductive isolation can occur due to :
1. Different mating strategies, time or place.
2. Inability to fertilize.
3.Production of a sterile or viable progeny.
Therefore, from the given option differences in food preferences is not a type of reproductive isolation as it does not follow any of the three listed mechanisms.
Reproductive isolation includes mechanisms that prevent different species from producing viable offspring. These can include behavioral, temporal, or biological factors. Differences in food preferences do not contribute to reproductive isolation.
In the context of evolution, reproductive isolation is a set of mechanisms, behaviours and physiological processes that prevent members of two different species that cross or mate from producing viable, fertile offspring. Examples include differences in behaviours like courtship songs, differences in breeding season timing, or incompatibility of gametes (like sperm and eggs) of two species.
Therefore, the choice C - differences in food preferences between two populations of birds is NOT an example of reproductive isolation. It's a ecological difference, not a barrier to mating or producing viable offspring.
#SPJ6
B. Begin to reduce depression immediately
C. Must be monitored closely for the proper dosage
D. Usually have no side effects
Energy in most ecosystems must flow through autotrophs because only autotrophs can convert solar energy in chemical energy.
Explanation:
This suggests that these are organisms which are entirely based on the Greek name self-producers that can produce complex organic materials by fixing together simple building blocks in their local situation. E.g plants on land. Photosynthesis in plants transforms solar energy into chemical energy using electrons and protons from water. The method of photosynthesis in plants involves a series of steps and reactions that use solar energy, water, and carbon dioxide to produce organic aggregates and oxygen.
Answer:
246
Explanation:
Increased amount / current population = 972
Amount released = 108
time(t) = 2years
Using the exponential growth function :
f(t) = A*g^t
Where g = growth rate
To obtain the growth rate = g
972 = 108 * g^2
g^2 = 972 / 108
g^2 = 9
g = 3
To determine population after 9 months :
9 months to years = (9/12) = 0.75
t = 0.75
f(0.75) = 108*(3^0.75)
f(0.75) = 108 * 2.2795070
f(0.75) = 246.18676
= 246