A major freeway runs along a stretch of the ocean shore. Over time, scientists begin tonotice a decrease in the number of intertidal organisms. Which of the following is the most
likely cause of the problem?
O A. toxic waste spilled during accidents on the
road
B. runoff of oil and other chemicals from the
road
C. wastewater from the city across the
freeway
O D. Any or all of the above could be causing
the problem.

Answers

Answer 1
Answer:

Answer:

D. Any or all of the above could be causing the problem.

Explanation:

Pollution has been said to have adverse effect on living organisms. In this question, a decrease in number of intertidal organisms has been observed. Since a major freeway runs along a stretch of the ocean shore, the most likely cause of the death of the intertidal organisms is the release of any form of toxic waste into the water body.

Oil pollutants causes death of living organisms by hindering the entrance of oxygen into the water body. It makes it difficult for oxygen, which is a requirement for life, to penetrate the water body. Hence, living organisms in the water body will suffocate and die.

Toxic wastes also causes the death of organisms when ingested in excess. Waste water causes deterioration in the oxygen content of the water body. Hence, any or all of the above options can likely cause the reduction in number of the intertidal organisms.


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Which of the following describes cytoplasm? 1.)an organelle containing enzymes for storing energy
2.)the core of a cell where genetic material is stored and duplicated
3.)a thick liquid residing between the cell membrane holding all the cell's organelles, except for the nucleus.
4.)a membrane network involved in the synthesis and transport of cellular materials

Answers

cytoplasm is basically a gel that holds everything in to cell in place, so i would say your answer is number 3.

Explain the difference between day and night, referring to the Earth's surface and the sun.

Answers

Firs,day and night happens due to moon, earth's rotation and the moon. Secondly, there is a line on the between of the globe and if there is night on one part of the earth there is day on the other side of the earth. Hope I helped

Bees fly from one flower to another and collect nectar. They turn this nectar into food. When a bee lands on a flower,pollen from the flower sticks to the bee's legs and body. When the bee visits another flower, some of the pollen from
the first flower is left behind. This is one way that plants reproduce.
What kind of relationship do bees and flowers share?

Answers

Bees and flowers share a mutualistic relationship. The flowers provide the bees with nectar, and the bees, in return, help cross-pollination.

What is  mutualistic relationship?

Mutualism is a type of symbiotic relationship in which both species involved benefit from the interaction. In mutualistic relationships, both organisms derive a benefit from the relationship, such as improved survival, growth, and reproduction. For example, one species may provide food or shelter for the other, while the other species provides protection or pollination.

Some classic examples of mutualistic relationships include the relationship between bees and flowers, where bees collect nectar and pollinate the flowers, and in return receive food in the form of nectar, and the relationship between plants and mycorrhizal fungi, where the fungi provide the plant with nutrients and in return receive carbohydrates from the plant.

Learn more about  mutualistic relationship, here:

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Answer:

Bees and flowering plants have a mutualistic relationship where both species benefit. Flowers provide bees with nectar and pollen, which worker bees collect to feed their entire colonies. Bees provide flowers with the means to reproduce, by spreading pollen from flower to flower in a process called pollination.

branilest would be apprecitated

how to separate salt and sugar?

 

 

 

 

 

 

Answers

Sugar is organic(i.e it can be grown) and it contains carbon so to separate the sugar from the salt you need an organic solvent like alcohol(which is also made from organic materials, like live yeast and barley). Sugar and alcohol are organic, so sugar can dissolve in the alcohol.

Mixing the mixture of salt and sugar into alcohol will make the sugar dissolve into the alcohol leaving the salt behind, because it is organic, you can then filter this mixture of alcohol, sugar and salt to get the salt. Then to get the sugar all you need to do is evaporate the alcohol. Then you have your sugar and salt separate.

Answer:

How to Separate Salt and Sugar

-Consider a simpler, safer alternative for a science experiment.  

-Add ethanol to your salt and sugar mixture.  

-Mix the solution with a spoon or a stir stick to dissolve the sugar.  

-Pour the alcohol solution through a very fine strainer, and into the new container.

What is the role of the enzyme primase in DNA replication

Answers

Answer:

Read the explanation.

Explanation:

The primase enzymes produce RNA molecules; the enzyme is a type of RNA polymerase. Primase does its functions by synthesizing short RNA sequences.  These short RNA sequences are complementary to a single-stranded piece of DNA, which serves as its template. Primers must be synthesized by primase enzyme before DNA replication can occur.

The Gram-positive bacteria have a ______ cell wall than the Gram-negative bacteria.A. Thinner
B. Thicker

Answers

Answer:

Thicker.

Explanation:

Although there are more cell membranes, walls,etc, the CELL WALL of Gram-positiive bacteria itself is thicker than Gram negative bacteria.

Primarily, it detects peptidoglycan, which is present in a thick layer in Gram-positive bacteria. ... In Gram-positive bacteria, the cell wall is thick (15-80 nanometers), and consists of several layers of peptidoglycan. They lack the outer membrane envelope found in Gram-negative bacteria.

Link:https://courses.lumenlearning.com/boundless-microbiology/chapter/cell-walls-of-prokaryotes/

Note: This information has been taken out of a website.