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lisov135 [29]
3 years ago
5

True or false a salad made of lettuce and tomatoes is a pure substances

Biology
1 answer:
Bas_tet [7]3 years ago
7 0
No, the answer is false.

A salad would be an example of a mixture, as it is a blend of tomatoes and lettuce.

A salad would be considered a heterogeneous mixture (you can see its different components). 
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What is the difference between monotremes marsupials and placental mammals?
vladimir1956 [14]

Here is your answer......

Explanation:

Monotremes are mammals that lay eggs. Monotremes are warm blooded with a fast metabolism. They have hairy bodies to keep warm.

Marsupials are mammals that give birth to live young.  These mammals have a pouch where their young grow and develop. Marsupials are hairy, warm blooded, and produce milk. One of the biggest differences between marsupials and placental mammals is that marsupials give birth quite early and rely less on the nourishment of the placenta. Some examples of marsupials are kangaroo and opossums.

Placental mammals are mammals that give birth to fully developed live young.  They differ from marsupials in that the baby spend more time being nourished in-utero by the placenta. These mammals are hairy and warm blooded as well. Some examples are mice, rats, and bats

Hope it helps.....

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3 years ago
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A scavenger is an organism that mostly consumes decaying biomass, such as meat or rotting plant material. Many scavengers are a type of carnivore, which is an organism that eats meat. While most carnivores hunt and kill their prey, scavengers usually consume animals that have either died of natural causes or been killed by another carnivore.

Scavengers are a part of the food web, a description of which organisms eat which other organisms in the wild. Organisms in the food web are grouped into trophic, or nutritional, levels. There are three trophic levels. Autotrophs, organisms that produce their own food, are the first trophic level. These include plants and algae. Herbivores, or organisms that consume plants and other autotrophs, are the second trophic level. Scavengers, other carnivores, and omnivores, organisms that consume both plants and animals, are the third trophic level.

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3 years ago
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Fudgin [204]

Answer:

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3 years ago
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11111nata11111 [884]
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4 years ago
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slega [8]

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