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anygoal [31]
3 years ago
15

Petra is working on a project that is looking for ways to improve milk yield in cows. What is Petra's job title?

Biology
2 answers:
Maksim231197 [3]3 years ago
5 0
A.
Animal scientists applies principles of the biological, physical, and social sciences to the problems associated with livestock production and management.
Oksana_A [137]3 years ago
5 0

Answer:

It's A

Explanation:

I just took the test and aced it lol Plato

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What are the steps of the process of evolution?
prohojiy [21]

Answer:

hereditary variat on selection is made of those genetic variats that well be passed on most effectively to the following generation

4 0
3 years ago
Describe the genetic makeup of the offsprings of asexual reproduction.
WARRIOR [948]

Answer:

They are genetically identical to the parents and only differ if a genetic mutation occurs.

Sexual reproduction involves two parents and produces offspring that are genetically unique.

The greater the genetic variation, the better change that an individual in the population have a favorable gene that can help survival.  Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population.

Explanation:

6 0
3 years ago
What is meant by a gateway substance? what is one example of a gateway substance what is wrong with assuming that use of a gatew
saw5 [17]
A gateway substance is something that may be menial but could lead to something bigger, an example is weed in the drugs world, weed is not hard to get and is usually a gateway drug to stronger types of drugs and potentially more dangerous
6 0
3 years ago
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A diploid nucleus of Drosophila melanogaster contains about 3.4 x 108 nucleotide pairs. Assume (1) that all nuclear DNA is packa
Olin [163]

Answer:

nucleosomes = 1.65 x 10^6

H2a = 3.3 x 10^6 molecules

H2b = 3.3 x 10^6 molecules

H3 = 3.3 x 10^6 molecules

H4 = 3.3 x 10^6 molecules

Explanation:

It was mentioned in the book Principles of Genetics  By D. Peter Snustad, Michael J. Simmons that in the nucleus of <em>D. melanogaster </em>there will be 1.65 x 10^6 nucleosomes and 3.3 x 10^6 molecules of every type of histone i.e. H2a, H2b, H3, and H4 present in it.

3 0
3 years ago
Plz help the question is the picture down below. And the subject is science I'm sorry guys I'm in a hurry
tatyana61 [14]

Answer:

clay water and silt

Explanation:

it may be right but not for sure

8 0
3 years ago
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