The best answer is D.
Plants need energy to grow and reproduce. This energy is gotten by the process of cellular respiration. This process uses carbohydrates as substrate .
To be able to get carbohydrates, plants, unlike animals, have to manufacture it. Animals do not make their own food but plants do.
The plants therefore must engage in photosynthesis to make carbohydrates and this requires light to provide solar energy to drive the process, thus most plants, especially green plants, must have sunlight , without which they cannot live.
There is usually more fresh water than salt water.
Very few organisms can survive in brackish waters.
It is most common in the deepest region of the ocean.
HELP PLEASE
Answer:
there is usually more fresh water than salt water
Explanation:
Answer:
B
Explanation:
"Drosophila eye color is an X-linked trait. Red-eye color is dominant, and white eye color is recessive." The Punnett square that shows the probability that 100 percent of offspring will have red eyes is red-eyed (X^WX^w) chart. This is further explained below.
Generally Drosophila eye color is simply defined as Large and brightly colored eyes are a distinguishing feature of the fruit fly Drosophila melanogaster.
In conclusion, Drosophila eye color is asex lined trait.
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Answer:
the answer is A ,
Explanation:
just read the chart
Answer:
Since there is presence of excess tryptophan, the trp operon will be switched off, since the bacterial need not to synthesize.
Explanation:
Understand the following.
The trp operon is a group of gene that encode biosynthetic enzymes for the amino acid tryptophan.
The transcription gene in the operon is switched off when the tryptophan is in excess but is switched on by the bacterium when the tryptophan is low, so that more tryptophan can be produced.
B. consumers.
C. predators.
D. prey.
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.
Succession takes place when environmental factors affecting an ecosystem change. Therefore, the given statement is true.
Succession refers to the process of ecological change over time in a particular area or habitat. It involves the progressive and predictable sequence of changes in species composition and community structure, leading to the development of a stable and mature ecosystem.
It can occur in both terrestrial and aquatic ecosystems. It is typically categorized into two main types: primary succession and secondary succession. It is a dynamic process.
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