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solmaris [256]
3 years ago
9

Predators often feed on weak or

Biology
2 answers:
Kitty [74]3 years ago
8 0

I THINK the correct answer would be Niche.

spin [16.1K]3 years ago
6 0


Predators are above all other organisms below it.  Usually as one moves up the

food chain, certain chemicals are concentrated as they move up the food chain.

Examples of this are mercury and PCB.

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I am writing an essay about plants role in medicine. I have tried researching information but every website has the same informa
klemol [59]
Im not writing your essay but some plants are used as medication and other remedies. plants are important because they provide food, medicine, oxygen, etc. 
4 0
3 years ago
Which of the following characteristics do not belong to the lumbar region?
ivolga24 [154]

Answer:

Explained below.

Explanation:

Each lumbar region of the spine is generally remembered as the lower back which contains 5 vertebrae. And the lumbar region is located between the chest or thoracic. And lumbar spine also typically holds a small internal curve as well.

From the following, the characteristics that belong to the lumbar region are as follows;

* Blunt spinous process

* Large size overall

* Bulky centrum

From the following, <u>the characteristic that does not belong to the lumbar region</u> are as follows;

* Elongated spinous process

7 0
3 years ago
In which calluses did the new gene insert an existing corn gene?
Lera25 [3.4K]

Answer:

Many farmers use chemical herbicides to kill weeds and

insecticides to kill insects. Using genetic engineering, scientists

have developed ways to resist harmful crop pests. In this Gizmo,

you will use genetic engineering techniques to create genetically

modified corn.

Explanation:

Many farmers use chemical herbicides to kill weeds and

insecticides to kill insects. Using genetic engineering, scientists

have developed ways to resist harmful crop pests. In this Gizmo,

you will use genetic engineering techniques to create genetically

modified corn.

8 0
3 years ago
HELPP PLSSS, I WILL APPRECIATE EVERY SINGLE ANSWER
chubhunter [2.5K]

Answer:

With the findings of the 2016 Census count on population and dwellings, Statistics Canada gives Canadians a first look at the most recent national statistical snapshot.

The census counts 35,151,728 persons who said they lived in Canada on May 10, 2016, and displays population growth patterns across the country.

The organization will provide the complete spectrum of census data during the following year, as Canadians commemorate 150 years since Confederation, in order to portray a truthful picture of Canadians' lives and communities.

In 1871, the first census following Confederation recorded 3.5 million people in Canada, while the population figure in 2016 was ten times higher. When Canadians celebrated the 100th anniversary of Confederation in 1967, that number had risen to 20.0 million people (1966 Census).

Canadians have been making their way west for many years. The four founding provinces of Ontario, Quebec, New Brunswick, and Nova Scotia housed the majority of Canadians in 1871, whereas Western Canada was lightly populated. Manitoba, Saskatchewan, Alberta, and British Columbia accounted for over a third of the population in 2016.:

7 0
2 years ago
Boris Magasanik collected data on the proportion of each base in RNA from different species. To compare the relative amount of e
just olya [345]

Answer:

The nucleic acid is a macromolecule present in living systems in the form of either DNA or RNA, whose molecule consists of many nucleotides which are linked with each other to form long chains. The presence of DNA or RNA in an individual promotes continuity of life. The variability and complexity of nucleic acid are dependent on its constituent molecules as, sugar, a phosphate group, and a nitrogenous base. However, two monocyclic nitrogenous bases were classified purines (adenine:A, guanine:G) and pyrimidines (thymine:T, cytosine:C, and uracil:U).

In addition, RNA is a single-stranded structure which differs from DNA in two aspects, the sugar content of RNA is ribose, and pyrimidine base uracil replaces the thymine base of DNA. A ratio between two strands of DNA can be calculated by using Chargrff's rule which states that "DNA from any cell of all organisms possess a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases'.

The purine to pyrimidine ratio in RNA with different bases is given below in the following table:

Presence of single strand in RNA does not follow chargaff's rule and alters the purine: pyrimidine ratio. The above ratio of each base in the given information is not equal, due to which the ratio of purines to pyrimidines is different. The ratio of DNA and RNA is not equal because DNA has its complementary DNA strand. However, bases in RNA might vary due to its single-strandedness property, but its ratio is dependent on the species.

Therefore, it can be concluded that the ratio of purines to pyrimidines is dependent on the species due to its genetic makeup. Hence, option (c) is correct.

7 0
3 years ago
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