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Luden [163]
3 years ago
11

The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______. a. s

urface area b. water depth c. temperature d. salinity
Biology
2 answers:
Dovator [93]3 years ago
6 0
<span>The question is the principal characteristic that determines whether an aquatic ecosystem is described as a marine or fresh water is - the correct option is salinity. Salinity is defined as the concentration of salt in a water body. The salt concentration is used to determine whether the water is classified as fresh water or salt water. Marine salinity is about three point five percent, therefore, it is classified as salt water. </span>
postnew [5]3 years ago
3 0

Answer:

BRO its D

Explanation:

this person typed too much.

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Can Hippodamia convergens and Hippodamia variegata can mate and produce fertile offspring? Explain your answer.
borishaifa [10]

Hippodamia convergens and Hippodamia variegata can mate but cannot produce fertile offspring because the number of chromosomes can make the development of the embryo unfeasible.

<h3>What are fertile hybrids?</h3>

The crossing between plants or animals of similar species can generate beings that, despite being hybrids, are fertile, even though in the initial phase of cell multiplication some chromosomes do not find the respective pair.

<h3>Why don't hybrids reproduce?</h3>

These differences in the number of chromosomes can make the development of the embryo unfeasible, as the alignment of equivalent chromosomes from the female and the male is necessary for the division of the fertilized cell to occur. When this alignment does not occur, the cell does not reproduce and dies.

With this information, we can conclude that Hybrid animals are beings from genetic crosses between different species, but of the same genus, that is, when two different animals cross and a new animal appears, usually sterile, due to their incompatible genes: the hybrid animal.

Learn more about hybrid animal in brainly.com/question/15362550

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8 0
2 years ago
When a tick transfers Lyme disease from a deer to a human, the tick is considered the ________ in the chain of infection
melisa1 [442]

The tick is considered the vector in the chain of infection.

Generally, vector organisms are organisms that are capable of transmitting disease pathogens from infected organisms to uninfected ones either directly or indirectly as a result of their activities.

Ticks are parasites that feed on the blood of vertebrate animals such as deers and humans. When they feed on the blood of animals with certain infections, the pathogens for such infections are sometimes carried in the guts of the parasites and these are transferred to the bloodstream of the next animal that would be their host.

A good example of this is Lyme disease.

More about vectors can be found here: brainly.com/question/12596213?referrer=searchResults

5 0
3 years ago
Which of the following is transcribed into a protein?​
valina [46]

Answer:

DNA mRNA Amino Acids Polypeptide chains Proteins

Explanation:

4 0
3 years ago
Read 2 more answers
Find the sum of the measures of the angles in a quadrilateral.
faltersainse [42]
A quadrilateral has 4 sides and each angle is 90 degrees therefore the sum would be 360 degrees 
5 0
4 years ago
what is the substance found in many plants that is not considered a nutrient but has many healthful benefits?
amid [387]

Answer:

The correct answer is phytochemicals.

Explanation:

Phytochemicals refer to the components, which are generated by plants. They are witnessed in vegetables, fruits, beans, grains, and other plants. Some of these phytochemicals are considered to protect cells from destruction, which could result in cancer. The phytochemicals are not considered as nutrients, but possesses many health benefits:  

1. It helps in ceasing carcinogens from attacking cells.  

2. It helps to prevent the generation of potential cancer-resulting substances.  

3. It assists the cells to prevent and eradicate any kind of cancer-like modifications.  

Some of the phytochemicals, which are considered as the most beneficial ones are polyphenols in tea, beta-carotene and other carotenoids in vegetables and fruits, and isothiocyanates found in cruciferous vegetables.  

8 0
3 years ago
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