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Mkey [24]
2 years ago
12

Explain 4. When are chemical properties observable?

Biology
1 answer:
mihalych1998 [28]2 years ago
7 0
They are observable when there is a change in color, smell, temperature, and there is a precipitate or formation of bubbles.
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Which of the following is an inorganic compound ?
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Answer: Option B) Common salt

Explanation:

An inorganic compound is one that does not contain carbon at all or contain carbon atoms that are not covalently bound to other atoms.

Hence, unlike kerosene, sugar and alcohol, common salt with the chemical formula NaCl has no carbon atoms, this will be regarded as an inorganic compound.

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3 years ago
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Answer:

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3 years ago
In a hydra, digestion is completed _________.
OLEGan [10]

In a hydra, digestion is completed intracellularly.

Hence option (a) is correct.

Small, freshwater organisms of the phylum Cnidaria and class Hydrozoa are grouped under the genus Hydra. They are indigenous to temperate and tropical climates. 

The digestion takes place intracellularly in Hydra.

Because of their ability to regenerate and the fact that they don't appear to age or experience old age, hydra have drawn the attention of biologists.

Like most other cnidarians, hydras have a pretty straightforward digestive system.

They have a two-way digestive system, which differs from mammals in that food and waste enter and exit through the same aperture. A "blind gut" is the name for this configuration.

The center of the hydra's body is occupied by its digestive tract.

Learn more about Hydra here brainly.com/question/1808325

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7 0
1 year ago
Squirrels and chipmunks compete for the same food source. What is most likely to happen to the degree of competition between the
ivann1987 [24]

Answer: Increase

According to the competitive exclusion principle, when two or more species in an ecosystem are competing for the same resource. The one which has undergone favorable adaptation and more competing will be likely to derive those resource than the one which has not undergone adaptation or less adaptive to the environment and less competing. Squirrels and chipmunks compete for the same food source and this food source became scare one of the two species is likely to disappear according to the competitive exclusion principle because the degree of competition between two species will increase.

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3 years ago
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