Rock, Minerals, Metals, Helium, Hydrogen, Water. It depends on what planet you are talking about.
Answer:meteorite- a rock that burns up in earth atmosphere
Meteor-the remains of rock from space that strikes Earth surface
Meteoroid-a small piece of rock in space
Explanation: I got it right on egunity
Answer:
Parents: yellow, entire petals (CC FF) × white, fringed petals (cc ff) F1 (Cc Ff)
For the cross of a heterozygous F1 individual (Cc Ff) with a homozygous recessive
individual (cc ff) we would expect a phenotypic ratio of 1:1:1:1 for the different phenotypic classes.
Phenotype Observed (O) Expected (E) (O - E)2/ E or ( 2)
Yellow, entire 54 43.75 2.40
Yellow, fringed 58 43.75 4.64
White, entire 53 43.75 1.96
White, fringed 10 43.75 26.0
Total 175 175 35
Degrees of freedom = 4 - 1 = 3. The chi-square value is greater than 12.838 for a probability value less than .005, or 0.5% that random chance produced the observed ratio of California poppies.
B .t is unlikely that random variations produced the observed ratio.
Explanation:
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Crowdsourcing is a practice wherein a person or group or person engage a crowd or group for a common goal for the purpose of innovation, problem solving or efficiency. New technologies, social media and web 2.0 are used in crowdsourcing. The following are the disadvantages of cowdsourcing: (1)Confidentiality and security. This is the deadliest disadvantage of crowdsourcing. It is essential to keep certain things from competitors but in crowdsourcing, you are dealing with large and anonymous group of people in there may be a malefactor or a direct competitor. (2) Communication. It can be difficult due to time and language barriers. (3) Management. There is an increased need of management because it will mean dealing with a large number of people. (4) Approach. Crowdsourced people may not be as serious or interested. They may not be paying very close attention because they are deeply involve in the project. (5) Quality. There is no guarantee that the result will be of sufficient quality or effective. Some of the respondents may cheat because some of them may just submit copied or plagiarized ideas
The answer is; pioneer species
These pioneer species have adaptations such as minute roots that enable them to grow on rocks, with little nutrients, and need no soil. This is why they are able to colonize new barren land. They are able to break down rocks to soil and give an opportunity for higher plants to later colonize the environment after time.
