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SSSSS [86.1K]
2 years ago
5

There are two changes that a substance can undergo that may either be physical changes or chemical changes (depending on the oth

er changes that occur, too) (they show up in both categories). what are these two changes?
Biology
1 answer:
svet-max [94.6K]2 years ago
3 0
The answer is true give brainly pls


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Ecological interactions can be categorized as competition, exploitation, or positive. Describe the types of interactions that fa
Vera_Pavlovna [14]

Answer:

Competition is an interaction between organisms or species in which both the organisms or species are harmed. Limited supply of at least one resource used by both can be a factor. This example is if two lions get into a fight and they end up hurting each other.

Exploitation competition occurs when individuals interact indirectly as they compete for common resources, like territory, prey or food. An example of this is when people are farming and they are trying to get the best food available but someone else might have already gotten it.

Commensalism is a positive type of ecological interaction between two species in an ecosystem. In commensalism, the association occurs between members of two different species where one species is benefited the other is neither benefited nor harmed. An example of this is tree frogs who use trees as protection.

Explanation:

5 0
3 years ago
What are some impacts of climate change on terrestrial ecosystems?
Ber [7]

Answer:

Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought.

<em><u>-TheUnknownScientist</u></em>

5 0
2 years ago
The break-down of complex molecules into simpler ones is called
Nikitich [7]
Phagocytosis is the answer to this one :)
4 0
2 years ago
Fish first appeared: a) after the "Age of the Dinosaurs" during the Mesozoic Era. b) during the Ordovician Period of the Paleozo
Sergeu [11.5K]

Answer:

during the Cambrian Period of the Paleozoic Era.

Explanation:

The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.

4 0
3 years ago
Read 2 more answers
Jack was sick with a cold and fever. the doctor prescribed him erythromycin, an antibiotic. analyzing the process of translation
KatRina [158]

Answer:

This is because it is a selective antibiotic that, when entering the body, binds to the 50s subunit of bacterial ribosomes, thus causing the disruption of protein transcription of bacteria.

This drug does not stop the transcription of human proteins since bacteria and humans do not have the same ribosomes, therefore, humans or sick cells do not have the active site to which the drug binds.

Explanation:

This is because it is a selective antibiotic that, when entering the body, binds to the 50s subunit of bacterial ribosomes, thus causing the disruption of protein transcription of bacteria.

This drug does not stop the transcription of human proteins since bacteria and humans do not have the same ribosomes, therefore humans or host cells do not have the active site to which the drug binds.

Erythromycin falls into the macrolide family and is considered a drug that is bacteriostatic at low concentrations and bactericidal at very high concentrations.

The difference between these named terms is that one ends the life of the bacterium (bactericidal) and the other stops the bacterial metabolism preventing its possibility of increasing in number.

5 0
3 years ago
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