Answer: True
Succession is the phenomena in which changes in the biotic and abiotic factors of the environment leads to change in the ecosystem. A succession is a process in which a biological community is replaced by another biological community until a mature ecosystem is formed this process is influence by environmental factors. Primary succession is the primitive environment where no biotic community previously existed it is followed by secondary and subsequent succession were life forms develop and form an ecosystem. Some of the environmental factors are:
Topographical : These are the change in the region or habitat were succession occurs. Landslides, volcanic eruption, glacier melting etc. are the examples , as these topographical changes can bring reformation of the landscape. The disturbance caused by these topographical changes will allow the disturbance tolerant species to repopulate the habitat. This can be a transition from primary to secondary succession.
Soil : It is an abiotic factor.The growth of the plants requires suitable soil conditions. The type of soil will affect which species will inhabit the area. The soil moisture and pH greatly affect the number of plant species in an area.
Climate : It can influence the direction of succession. Climatic factors includes rain, wind etc. For example a region lacking proper rainfall the species will be tolerant to dry and drought conditions. The region with heavy rainfall, the species will be more tolerant to moisture. Wind being a climatic factor can cause wind erosion affect the soil quality. Wind can lead to heavy forest fires can therefore, wiped out community.
Polar bears are animals that live in cold environments.
Their environment should be a place conducive for breeding and propagating
their species. If ice caps are melting and the length of the cold season is
declining because of the effects of climate change, polar bears will have less
time hunting for food.
Generally, the coldest season is the best hunting
time for polar bears. It is easier to catch seals and fish due to the thickness
of the ice and the rise of water in their environment. This time to hunt is
enough to restore the polar bears’ body fat and fitness in preparation for the
warm season where there is less ice and food.
<span>As the warm season lengthens, the condition of
the polar bears’ bodies decline resulting to effects that are serious for pregnant
polar bears who are nursing and cubs who need their mothers’ energies to
survive the harsh environment. </span>
Answer:
Indohyus is a fossil, found in 2007, of a chevrotain-like mammal believed by some paleontologists in the Evil Liberal Science Conspiracy to be a transitional form between land-dwelling mammals and the ancestor of whales.
The origin of cetaceans from land-living mammals is among the most famous of these events. Much earlier, during the Mesozoic Era, many reptile groups also moved from land to wate
Explanation:
Answer:
apidly reversible active-inactive transition
Explanation:
Answer:
true
Explanation:
theres a bunch of different categories depending on the subject
