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mihalych1998 [28]
3 years ago
10

Was making salt water a physical or chemical change? How do you know?

Biology
1 answer:
Tom [10]3 years ago
6 0
Making salt water is a physical change because when the water evaporates salt is left over
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When two species occupy the same niche in an ecosystem, the result of the competition is that one species will either have to mo
patriot [66]

Biodiversity decreases, and the overall health of the ecosystem decreases.

Answer: Option D

<u>Explanation:</u>

In a niche when two different species occupy a niche competition arises between them. In due course both the species fight for existence and nature selects the best adaptable one to win. The other species either reduces in its population or gradually in struggle for existence they deteriorate and die.

Hence a decrease in bio diversity happens here due to natural selection. If the biodiversity is decreased in a particular niche it affects the growth of different species which in turn affect the whole ecosystem resulting in decrease of the overall health in an ecosystem.

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3 years ago
"Assume that a man and a woman are phenotypically normal, but the woman is heterozygous for a pericentric inversion on chromosom
Ahat [919]

Answer:

Explanation:

Pericentric inversion results in chromosome have extra copies of some genes while some genes do not have copies. It can result in slow growth rate.

If a man is heterozygous of pericentric and a woman is heterozygous of pericentric although they do not show symptoms there is 25% chance that their offspring will have it and 50% chance of them being a carrier.

T t × T t will give TT T t T t t t

If the father is not heterozygous of it but the mother is heterozygous they have 0% chance of having it and 50% chance of being heterozygous a carrier of the disorder

T t × TT will give TT TT T t T t

3 0
2 years ago
-Present-day mitochondria and chloroplasts probably evolved as a consequence of early endosymbiosis: the ancestor of the eukaryo
nata0808 [166]

Answer:

The evidence suggests that these chloroplast organelles were also once free-living bacteria.

Explanation:

The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.

:)

5 0
3 years ago
At the grocery store a cute, little curly-haired child is standing behind you in line. you turn around for a moment and she stic
ikadub [295]

The tongue muscle that the child uses when she sticks her tongue out is the genioglossus. This is the muscle of the tongue that is responsible for making the tongue to stick out or protruding the tongue of an individual.

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What happens to DNA before a cell divides
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DNA is copied, checked for errors, and packaged neatly before cell division.

Explanation:

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3 years ago
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