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Biology

1 answer:

saveliy_v [14]2 years ago

4 0

Answer:

The sun is a star, this means the sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom. During the fusion process, radiant energy is released.

In the north, the display is called aurora borealis, or northern lights. In the south, it is called aurora australis, or southern lights. The activity that creates auroras begins on the sun. The sun is a ball of superhot gases made up of electrically charged particles called ions. I got u bro.

Explanation:

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The fact that fish, penguins, and dolphins all have the same basic shape is BEST explained by which of the following?

NISA [10]

Answer:

I would say it is E.

Explanation:

because fish, penguins, and dolphins are aquatic animals. It can't be A. because if it were vestigial it would be useless. It can't be B even though it does seem like the right answer because the are all aquatic. It can't be C. because it would been that the same species would have the same niche which is not possible. It can't be D. because every organism is evolved from a common ancestor.

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3 years ago

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Why are bacteria necessary for life on Earth to exist?

SashulF [63]

Answer:

Bacteria are economically important as these microorganisms are used by humans for many purposes. The beneficial uses of bacteria include the production of traditional foods such as yogurt, cheese, and vinegar. Microbes are also important in agriculture for the compost and fertilizer production.

Explanation:

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3 years ago

Why might you not see as much bacterial colonization of microbes from human saliva on plates cultured at 25oc versus plates incu

GREYUIT [131]

Bacteria need an optimum temperature for their growth, so this is the reason why we might not see as much bacterial colonization of microbes from human saliva on plates cultured at 25 °C versus plates incubated at 37 °C.

Why do bacteria only grow at certain temperatures?

The main justification for incubating bacterial cultures at various temperatures is that different temperatures favor the growth of particular bacteria.
Most infections and typical ambient bacteria are classified as mesophiles, which thrive in temperatures between 20 and 40 degrees Celsius.
An optimum temperature is required for the enzymes to show their activity, and for the division also many enzymes are involved in the process. So, the bacterial culture can be seen at a particular incubation temperature only.

To read more about bacterial colonization visit:

brainly.com/question/12485105

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1 year ago

Which type of organism is characterized by having jointed appendages, ability to molt, and three sets of fused segments? echinod

mel-nik [20]

The members of the phylum arthropoda have jointed legs. the number of jointed legs are variable, may be three pairs as in cockroaches, four pairs in prawns and even hundred pairs in centipedes. Members of this phylum have ability to shed their their exoskeleton(molting) and body is divided into three fused segments - head, thorax and abdomen.

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3 years ago

How does fertilizer usage, soil degradation, and deforestation all tie in together?

Tamiku [17]

Answer:

Fertilizer usage is linked to the agricultural practice with an aim to enhance the crop yield. Inadequae use of fertilizers however causes soil degradation because these practices overlook the spatial differences in soil fertility status in agricultrual systems. Specifically, not all soils require fertilizer application at the same levels. A recommended approach is that, initially, there should be a proper study of limited nutrients in the soil and thereon only those nutrients should be given at controlled concentrations, which are limited. A major reason is that high concentration of specific nutrients would affect the bioavailability of other nutrients in the long run and could also lead to soil degradation (by affecting soil health status). The microbial population in the soil could also change that are typical for essential biogeochemical cycles. This is a very critical aspect in future future agriculture and to preserve the environment. Deforestation is a condition when the plants are cut excessively for agricultural purposes. If soil degradation continues as discussed above, it would put a reduce the overall proportion of agricultrual land and cutting of naturally grown forests would be required. This would turn the green zones into agricultural zones (in future). This is a pressure on ecosystem and the consequences can be really harsh.

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3 years ago