A worker sprayed fertilizers, which stimulate the growth of native bacteria, on an oil-soaked area. Which one of the following capabilities of bacteria could have led to the above action? A. bacterial growth reduces the chances of fire due to oil spill. B. bacteria digests patroleum and help in cleaning up oil spills. C. bacteria survives the harmful effect of fertillizers.

QUESTION POSTED AT 18/01/2020 - 06:00 AM

Answered by admin AT 18/01/2020 - 06:00 AM

The right answer for the question that is being asked and shown above is that: "B. bacteria digests patroleum and help in cleaning up oil spills."A worker sprayed fertilizers, which stimulate the growth of native bacteria, on an oil-soaked area. The capability of bacteria that could have led to the above action is that bacteria digests patroleum and help in cleaning up oil spills.
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Related questions

Strategy for effective waste management being used in your area/locality/school

Hello there.

Strategy for effective waste management being used in your area/locality/school
it allows for the easy reuse and recycle of materials.

ANSWERED AT 19/02/2020 - 01:09 AM


QUESTION POSTED AT 19/02/2020 - 01:09 AM

2ways in which bile helps body to digest fat?

Bile is an emulsifier, which means that it breaks lumps of fat up into droplets.

This increases the overall surface area of the fats, so there is more room for enzymes to work on breaking it down into smaller products.

https://www.google.com/amp/www.answers.com/amp/Q/How_does_bile_help_digest_fats?client=safari

ANSWERED AT 19/02/2020 - 12:51 AM


QUESTION POSTED AT 19/02/2020 - 12:51 AM

__________ species reproduce rapidly in a new habitat due to the lack of parasites and predators that would naturally control their population growth. A) Invasive B) Isolated C) Native D) Reproductive

Hello there.

__________ species reproduce rapidly in a new habitat due to the lack of parasites and predators that would naturally control their population growth.

Answer: 
A) Invasive

ANSWERED AT 19/02/2020 - 12:48 AM


QUESTION POSTED AT 19/02/2020 - 12:48 AM

Consider other shapes for a cell besides a cube? what cell shape might increase . surface area and decrease the volume explain

Answer - Well to put it in short terms. 

Cells such as water cells or aquatic microorganisms need and required to have a large surface area increased. Because this helps them stay afloat without spending much amount of energy to float.

ANSWERED AT 18/02/2020 - 11:46 PM


QUESTION POSTED AT 18/02/2020 - 11:46 PM

Some fungi secrete substances that are toxic to bacteria that compete with them for food. Scientists have used their knowledge of this ability of fungi in order to produce which of the following substances? Why?A) yogurtB) fertilizersC) plasticD) antibiotics

D) antibiotics since these substances that fungi secrete can kill the bacteria that is in your immune system when your are sick 

ANSWERED AT 18/02/2020 - 11:44 PM


QUESTION POSTED AT 18/02/2020 - 11:44 PM

Why is it impossible to know the growth phase of cut , broken or shaved hair fragments

I think that you canno because it will damage yourhair

ANSWERED AT 18/02/2020 - 11:43 PM


QUESTION POSTED AT 18/02/2020 - 11:43 PM

A student designs an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. Five of the seed pots will receive a small amount of detergent in the soil and will be placed in the shade. The other five seed pots will not receive detergent and will be placed in the sun. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He allows the seeds to grow for two months and charts their growth every two days. What is wrong with his experiment? A) More than one variable is being tested. B) The student should have a larger number of pots. C) There is no way of measuring the outcome. D) There is no control set up.

Hello there!

A student designs an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. Five of the seed pots will receive a small amount of detergent in the soil and will be placed in the shade. The other five seed pots will not receive detergent and will be placed in the sun. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He allows the seeds to grow for two months and charts their growth every two days. What is wrong with his experiment?

A) More than one variable is being tested.

ANSWERED AT 18/02/2020 - 02:54 PM


QUESTION POSTED AT 18/02/2020 - 02:54 PM

Animals utilize different reproductive strategies to guarantee the production of offspring. Earthworms are hermaphroditic. What unique reproductive characteristic do earthworms possess? a. They reproduce only by asexual means. b. They produce both eggs and sperm. c. They have gemmules that are fertilized by amoebocytes. d. They possess only male amoebocytes.

Animals utilize different reproductive strategies to guarantee the production of offspring. Earthworms are hermaphroditic. While earthworm possess the following characteristics
They produce both eggs and sperm.

ANSWERED AT 18/02/2020 - 02:33 PM


QUESTION POSTED AT 18/02/2020 - 02:33 PM

Which of the following organisms lives near the surface of aquatic biomes because it needs sunlight to survive? a.phytoplankton b.zooplankton c.sturgeon d.manatee

Answer:

Phytoplankton.

Explanation:

Phytoplanktons are the small, microscopic organisms that lives near the surface of the aquatic biomes. Phytoplanktons are the algae that plays the similar role of terrestrial plants.

The phytoplanktons needs sunlight for their survival. Phytoplanktons also require the nutrients like sulfur and phosphorus that are used by them to produce carbohydrates and proteins.

Thus, the correct answer is option (a).

ANSWERED AT 18/02/2020 - 02:31 PM


QUESTION POSTED AT 18/02/2020 - 02:31 PM

The paths of global winds curve because of what is known as the _____. A. Coriolis Effect B. Ionosphere C. Greenhouse Effect D. Jet Stream

Answer:

A

Explanation:

i toke the test.

ANSWERED AT 18/02/2020 - 02:30 PM


QUESTION POSTED AT 18/02/2020 - 02:30 PM

Convergent evolution suggests different organisms evolved _____ due to _____. similarly; different environments, differently; different environments, differently; similar environments, similarly; similar environments

Convergent evolution suggests different organisms evolved differently due to similar environments.

ANSWERED AT 18/02/2020 - 02:28 PM


QUESTION POSTED AT 18/02/2020 - 02:28 PM

In a double-blind experiment, which of the following is true? A.The subjects are not told the purpose of the experiment. B.The experiments are conducted in a specially darkened and soundproof room to eliminate the influence of chance environmental variables. C.The experimenter does not know which subjects are in the treatment group. D.Neither the subjects nor the experimenter know who is in the treatment group. E.Each experimental subject is assigned to exactly two blocks.

Ans. Option (D).

A double-blind experiment can be defined as a scientific experiment, in which test information is masked from both experimenter and subjects or test group, until the result is obtained.

It is performed to get more accurate outcomes that can be otherwise influenced be observer bias or placebo effect.

Thus, the correct answer is option (D).

ANSWERED AT 18/02/2020 - 02:15 PM


QUESTION POSTED AT 18/02/2020 - 02:15 PM

An attitude that is considered strong is likely to __________. A. have a great effect on behavior B. be easily subject to change C. come to mind with difficulty D. have been caused by peripheral persuasion

The correct answer is A. have a great effect on behavior

A strong attitude is one that is central to person's identity and day-to-day behavior and living. For instance, if a person has a strong positive attitude, he or she is likely to regularly feel happy, optimistic and enthusiastic, and engage in behaviors and actions that reflect the same. 

ANSWERED AT 18/02/2020 - 02:04 PM


QUESTION POSTED AT 18/02/2020 - 02:04 PM

A developing fetus requires a tremendous amount of nutrients for growth and development,which systems interact to maintain homeostasis in the mother

Answer - The Placenta

Reasoning - Holy cow.. Without the placenta there will be exchange of waste and nutrients to go in and out for the fetus. The placenta is Important because it acts like an airport for drop off and pick up. In this case it's nutrients and wastes for growth and develop.

ANSWERED AT 18/02/2020 - 02:03 PM


QUESTION POSTED AT 18/02/2020 - 02:03 PM

Which could be referred to as secondary growth of stems?

Answer - An increase in the width of Stem

(Was answered before in the community)
Credit goes to [PeachSoda]

Reasoning Why I agreed - Plants can grow in the root tips which shows the progression of growth and thats why you would find a lot more plant cells because it will always keep growing.

ANSWERED AT 18/02/2020 - 02:00 PM


QUESTION POSTED AT 18/02/2020 - 02:00 PM

How does in vitro fertilization work?

During in vitro fertilization (IVF), eggs and sperm are brought together in a laboratory glass dish to allow the sperm to fertilize an egg. With IVF, you can use any combination of your own eggs and sperm and donor eggs and sperm. After IVF, one or more fertilized eggs are placed in the uterus.

ANSWERED AT 18/02/2020 - 01:55 PM


QUESTION POSTED AT 18/02/2020 - 01:55 PM

A lightweight material is being tested for effectiveness in blocking ultraviolet (UV) rays from the sun that cause skin to burn and possibly develop skin cancer. Which method would be most helpful for testing this material? Choices: A)Use specialized equipment to measure how much UV light passes through stacks of one, five, or 20 layers of the material. B)Test the material in controlled natural settings by using natural UV light, and measure the UV light that passes through. C)Write a survey that asks people on beaches about their preferences for sunscreen and protective materials. D)Test the material in a lab setting by using humans and a variety of UV light sources, and develop a scale to measure the damage that is caused to human skin.

Answer:

The correct answer is statement B.

Explanation:

The UV rays refer to the radiation emitted from the Sun, which the Earth receives. These radiations exhibit a direct influence on human skin, these possess the tendency to produce mutations in human genome and are carcinogenic in characteristic.  

A lightweight substance can be examined in controlled natural environments with the application of natural UV light, like the skin cells that can be observed under two conditions, that is, in controlled condition, in which a skin cell is coated with lightweight material, and in experimental condition, in which skin cell is coated with lightweight substance.  

After exposing these cells to distinct ranges of UV rays, it will assist in finding an important conclusion considering the benefit of the lightweight substance in obstructing sunlight. The controlled cell will die as it is not able to withstand UV rays, while the experimental skin cell will either die or survive.  

In case, if it thrives then it can be deduced that the lightweight substance is efficient in preventing ultraviolet rays, and if it dies, then a lightweight substance is not efficient in preventing UV rays.  

Thus, testing the substance in a controlled natural setting by utilizing UV light, and measuring the UV light passing through would be the most appropriate approach for examining the substance.  

ANSWERED AT 18/02/2020 - 01:41 PM


QUESTION POSTED AT 18/02/2020 - 01:41 PM

A researcher while working in vitro (outside cell) added helicase enzyme which resulted in the untwisting of the DNA helix. But this untwisting led to strain ahead of the replication fork. Which enzyme can be added to correct this problem? Nuclease Topoisomerase Telomerase

Answer:

Option B

Explanation:

Topoisomerase are the enzymes that help in correcting the underwinding of DNA. It act as a maintainer of DNA replication process by preventing the overtightning of the DNA double helix at the time of replication. The DNA helix which is infront of the replication fork is prevented from getting tight at the time of unwinding which is a problem arising due to the double-helical structure of DNA.

Hence, option B is correct

ANSWERED AT 18/02/2020 - 01:40 PM


QUESTION POSTED AT 18/02/2020 - 01:40 PM

An increase in carbon dioxide in the atmosphere will most effect which type earth activity?

An increase in carbon dioxide in the atmosphere will most effect "Photosynthetic Activity"

Hope this helps!

ANSWERED AT 18/02/2020 - 01:34 PM


QUESTION POSTED AT 18/02/2020 - 01:34 PM

A study was conducted to test the effectiveness of Seeing Eye Dogs. People with different ranges of vision loss were included in the study. Which question would help in determining whether the conclusion above is valid? A. What was the average age of the people in the study? B. What was the most common occupation of people in the study? C. How many people in the study had a pet? D. How many people in the study had hearing problems?

Answer:

The correct answer will be option-B.

Explanation:

In the given study, the people were selected with different ranges of vision loss to study the effectiveness of seeing by looking at the dogs of an eye.

These persons showed variance in their ability to see as the vision depends on the age along with occupation they were in or they are in.  The strongest factor that influences the ability to see was the occupation which leads to different ranges of vision.

Thus, Option-B is the correct answer.

ANSWERED AT 18/02/2020 - 01:18 PM


QUESTION POSTED AT 18/02/2020 - 01:18 PM

In an ecosystem,the presence of many different species is critical for the survival of some forms of life when

One species is bigger than the rest

ANSWERED AT 18/02/2020 - 12:47 PM


QUESTION POSTED AT 18/02/2020 - 12:47 PM

After carbohydrates and proteins are digested, what types of smaller nutrients are absorbed into the blood

Answer: The carbohydrates and proteins are broken down into smaller components and then absorbed in the blood.

The carbohydrates are broken down into simpler sugar before being absorbed in the blood.

The complex carbohydrates in the food are broken down into simple sugar before absorption.

The proteins are broken down into amino acids before being absorbed in the blood to provide energy.

ANSWERED AT 18/02/2020 - 12:41 PM


QUESTION POSTED AT 18/02/2020 - 12:41 PM

The transfer of antibiotic-resistant genes from genetically engineered bacteria to disease-causing bacteria _____.

The transfer of antibiotic-resistant genes from genetically engineered bacteria to disease-causing bacteria seems unlikely.

ANSWERED AT 18/02/2020 - 12:14 PM


QUESTION POSTED AT 18/02/2020 - 12:14 PM

How does my digestive system work from mouth to my butt?

See the picture attached to see how digestive system works

I saw you asked a question on why feces is brown here is why : 

Brown is the common color of poop.
There is a pigment called bilirubin that is formed when the red blood cells in the liver and bone marrow break down. This ends up in the intestines where the bacteria begins to form and eat which turns the poop brown.

ANSWERED AT 18/02/2020 - 11:51 AM


QUESTION POSTED AT 18/02/2020 - 11:51 AM

What are some factors that could limit the ability for cells to survive?

Not enough nutrients, energy, water, oxygen, and proper environment 

ANSWERED AT 18/02/2020 - 11:39 AM


QUESTION POSTED AT 18/02/2020 - 11:39 AM

Environmental factors are capable of changing ones dna and can cause uncontrolled cell growth that often results in cancer what are are these factors called

Carcinogenesis or carcinogens cause cancer in the environment.

ANSWERED AT 18/02/2020 - 11:32 AM


QUESTION POSTED AT 18/02/2020 - 11:32 AM