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rosijanka [135]
3 years ago
7

“How fast do hummingbirds fly?” Why is the question a scientific question?

Biology
2 answers:
ExtremeBDS [4]3 years ago
8 0

Answer:

Hummingbird's are the smallest birds in the world belonging to largest group of birds Trochilidae family.

A scientific question is a question that have real answers and answers can be verified by performing experiments.

Since, the question “How fast do hummingbirds fly" is a question asking about the speed of hummingbirds- hypothesis can be made like " Is the speed of humming birds fastest among all the birds "?. They can be tested in the fields and question can be explained with the results.

Thus, How fast do hummingbirds fly? is a scientific question.

sleet_krkn [62]3 years ago
6 0
Hummingbirds can fly as fast as 60 miles per hour. One reason why its a scientific question is because of their speed. Their speed is very different compared to many other animals. I hope this helps :)
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Two bacterial strains have the same genes for metabolizing carbohydrates, but one is wild-type for a regulatory inducer while th
klemol [59]

Answer:

b. The two bacterial strains have different phenotypes.

Explanation:

In genetics, the trait that is expressed is often referred to as the dominant trait and it can also be expresssed phenotypically.

Since one of the bacteria produces the inducer, it therefore means that bacteria has the dominant strain for the regulatory inducer while the other bacteria might have the strain but since it is not expressed phenotypically, it is as a result not dominant.

Phenotype refers to the physical appearance of an organism as a result of the interaction of its genes with the environment. Examples of phenotypic expresssions are hair colour, skin colour, height, etc.

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2 years ago
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Explanation:

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3 years ago
Newsweek in 1989 reported that 60% of young children have blood lead levels that could impair their neurological development. As
Kamila [148]

Answer:

The answer is 83.38%.

Explanation:

The probability of young children having blood levels that impair their neurological development is given as 60% in the question. To find the probability of at least 5 children out of 10 in a sample having said blood levels, we need to use the binomial probability.

n represents the total number of children in the sample so n = 10 and p is the probability of the children having blood levels causing the problem which is 60% so p = 0.6.

We want the probability of it being observed for 5 or more children and that is P(x\geq 5). If we subtract the P( x\leq 4) from 1, which is the probability of not observing the condition in 5 or more children, we will have the P(x\geq 5).

1 - P(x\leq 4) = 1 - pbinom(4, 10, 0.6) which are the probability range in the function, the sample size and the probability of observing the condition respectively.

The result is 1 - 0.1662 = 0.8338 which means that the probability that is asked is 83.38%.

I hope this answer helps.  

8 0
3 years ago
4. The
loris [4]

Answer:

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Explanation:

8 0
3 years ago
Identify the pattern of inheritance in the described traits
UNO [17]

Answer:

The right order is

incomplete dominance ==> 2

polygenic inheritance ==> 3

codominance ==> 1

Many physical characters depend on many different factors, each of which is determined by different genes. This is called polygenic inheritance.

Codminance: The phenotype of each allele is expressed simultaneously in heterozygotes.

Incomplete Dominance: An intermediate phenotype is obtained between the two dominant alleles.

4 0
3 years ago
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