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alexandr1967 [171]
3 years ago
10

⚠️HELP⚠️ QUICK

Biology
2 answers:
abruzzese [7]3 years ago
4 0

Answer:

I believe it will be D. all of the above.

Explanation:

Rama09 [41]3 years ago
3 0

Answer: it is all of the above

Explanation:  chemical is introduced are factors that determine how harmful an introduced chemical will be in the environment. also it  is asked here at Brainly!!!

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4. For your organ system, describe how the system works at the tissue level. mine is the digestive system
san4es73 [151]
Different systems<span> of the body have different functions. For example, your </span>digestive system<span> is responsible for taking in & processing food, while your </span>respiratory system—working<span> with your</span>circulatory system<span>—is responsible for taking up oxygen and getting rid of carbon dioxide. Hope this helps</span>
5 0
4 years ago
Read 2 more answers
Which of the following is a way that new DNA can be introduced to bacteria?
OLEGan [10]

Answer:

B

Explanation:

<em>The correct answer here would be that </em><em>it can be injected by a virus.</em>

Since a virus operates by taking over the genetic system of the host and uses its replication, transcription, and translation to make virions or viral particles through the lytic or lysogenic life cycle. In the process, if the virus is utilized as a vector to carry a foreign DNA, the DNA is introduced into the genome of the bacteria. This is exactly what happens during the process known as transduction.

<em>The correct option is, therefore, </em><em>B.</em>

4 0
3 years ago
Whether a fly has white or red eyes is due to alleles at a single locus. It is thus a _______ or _______ trait.
maxonik [38]

Answer:

The correct answer is "qualitative, discrete".

Explanation:

A qualitative or discrete trait is defined as a characteristic that have no intermediate features, and is often the result of genetic alleles at a single locus. For instance, if the form the seeds of pea could be either round or wrinkled, but not with intermediate forms. This is the case of the fly that has white or red eyes, but does not have pink eyes or other colors in between.

8 0
3 years ago
What is the name for the science that studies evolution that oc-
abruzzese [7]

Answer:

D. Population genetics

Population genetics is the study of genetic variation within populations, and involves the examination and modelling of changes in the frequencies of genes and alleles in populations over space and time. ... In natural populations, however, the genetic composition of a population's gene pool may change over time.

Explanation:

microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then

macroevolution - Macroevolution in the modern sense is evolution that is guided by selection among interspecific variation, as opposed to selection among intraspecific variation in microevolution (this goes over huge groups of different species) Not it then

gene pool - The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species. (Not the study of evolution in a population) Not that then

So it has to be D

3 0
3 years ago
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Three advantages of Biodiversity in an ecosystem?
beks73 [17]
It increases ecosystem productivity, protects fresh water resources, and provides nutrient storage and recycling
3 0
4 years ago
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