A scientist thought he may have discovered a new plant compound that would lower blood pressure in people. In his first experiment, he injected one hundred mice with the compound and found that the blood pressure in ninety-five of the treated mice was not affected. However, all of the mice seemed to grow at a faster rate then the control group. Which statement describes the most likely outcome of this investigation? a. The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug. b. He will develop a second experiment to find a way to make the drug successfully lower blood pressure in mice. c. The data he collected will be used in new investigations to determine why certain people are taller than others. d. He will use these results to conclude that the drug will most likely lower blood pressure in five percent of people.

QUESTION POSTED AT 06/12/2019 - 12:49 PM

Answered by admin AT 06/12/2019 - 12:49 PM

A. The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug.

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Where does the energy come from to make ATP at the chloroplast?

They energy comes from the sun.

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QUESTION POSTED AT 22/01/2020 - 02:26 AM

Which of the following statements is true? Groundwater is the largest available source of freshwater. Most of Earth's water is found in lakes, rivers, and streams. Glaciers are made from frozen ocean water, so they are sources of saltwater. Most freshwater is used for public drinking and mining.

Answer: Groundwater is the largest available source of freshwater.

Ground water is a water reservoir. It accumulates in the saturated zone of the geosphere. The water accumulates when water from sources like river, lakes, ponds, rainfall, snow melt, and agricultural irrigation gets seep underground by the pores of soil and rocks. It is a largest source of freshwater, as it remains unexposed to the contamination.

ANSWERED AT 22/01/2020 - 02:23 AM


QUESTION POSTED AT 22/01/2020 - 02:23 AM

Omar studies the effects of a drought on the water level in a pond. He takes a reading of the water depth at the same location in the pond every day for the duration of the drought. Which method of displaying data would he most likely use to show changes in the water level?

A line graph because it displays the data over time of the water levels rather than a bar graph which measures multiple things

ANSWERED AT 22/01/2020 - 02:22 AM


QUESTION POSTED AT 22/01/2020 - 02:22 AM

Which question is most likely to be found in a dichotomous key for identifying a tree by its leaves? A-What is the shape of the tree’s leaves? B-What type of birds prefer nesting in the tree? C-Are the leaf bases attached opposite to each other on the branch? D-Are the leaves shaped in a way that slows the evaporation of water?

The answer is  C, are the leaf bases attached opposite to each other on the branch ? A dichotomous key is a tool that may be used to identify trees. It always gives two choices in each step and following all the steps will lead to the name of the tree being identified. Dichotomous key is a tool used to identify unknown organisms by leading a user through a sequence of paired, either or choices, to help them identify the unknown organisms.

ANSWERED AT 22/01/2020 - 02:20 AM


QUESTION POSTED AT 22/01/2020 - 02:20 AM

A turgid plant cell would be found in which type of environment

Hypontonic environment

ANSWERED AT 22/01/2020 - 02:18 AM


QUESTION POSTED AT 22/01/2020 - 02:18 AM

Human growth hormone is genetically engineered and inserted into human tissue to help stimulate growth in people with dwarfism. What are possible concerns that scientists have about the long-term effects of this process? whether it will mutate whether it will result in allergens how it will impact nutrition how it will enhance disease resistance

I believe the answer is "how it will enhance disease resistance".
When something is used to fight any sort of disorder,mutation,bacteria,ect,...sometimes the thing you are trying to help will mutate as it adapts and develops a stronger resistance to the thing used to help.

ANSWERED AT 22/01/2020 - 02:16 AM


QUESTION POSTED AT 22/01/2020 - 02:16 AM

Insects often act as pollinators for plants. In turn, plants provide these insects with food. What kind of a relationship exists between the insects and the plants?

Answer:

In this case mutualism is the relationship between Insects and plants

Explanation:

The pollination is mutualism because it involves two species interaction that is benefic. There is an interaction involving the exchange of food and the possibility of reproduction by the transfer of gametes. This relation implies benefits for both species. The advantage for the plant is the possibility to produce more number and more viable offspring, the advantage for the insects pollinators include food (pollen and nectar).

ANSWERED AT 22/01/2020 - 02:14 AM


QUESTION POSTED AT 22/01/2020 - 02:14 AM

Which is the relationship between photosynthesis and cellular respiration? Cellular respiration makes the glucose that is needed by photosynthesis. Photosynthesis makes the glucose that is broken down by cellular respiration. Cellular respiration converts the glucose that is made by photosynthesis to oxygen. Photosynthesis converts the glucose that is made by cellular respiration to carbon dioxide.

Answer:

The correct answer would be  "Photosynthesis makes the glucose that is broken down by cellular respiration".

Photosynthesis is the process by which autotrophs or green plants synthesize their food (glucose) from carbon dioxide and water with the help of chlorophyll and sun.

They convert solar energy into chemical energy (food) and oxygen is released  as the byproduct.

6CO₂ + 6H₂O + solar energy → C₆H₁₂O₆ + 6O₂

In contrast, cellular respiration refers to the set of metabolic reactions which harnessed the chemical energy of food or glucose and convert it into ATP (adenosine triphosphate), the energy currency of the cell.

The cell requires oxygen for the complete oxidation of the food or glucose.

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP

ANSWERED AT 22/01/2020 - 02:12 AM


QUESTION POSTED AT 22/01/2020 - 02:12 AM

The restriction enzymes that cut the bacteriophage DNA cannot cut the bacterial chromosomal DNA. Explain this statement.

The bacteria can cut the viral DNA at its specific restriction site but protect their own chromosomal DNA by modifying its bases and blocking the restriction enzyme. This process is called methylation (adding a -CH3 group) to prevent binding of the enzyme.

ANSWERED AT 22/01/2020 - 02:10 AM


QUESTION POSTED AT 22/01/2020 - 02:10 AM

Which waste items should always be discarded in the hazardous waste container? a. pieces of glass b. plant specimens c. all chemicals d. bacterial cultures

The correct answers are: All chemicals and bacterial cultures.

The bacterial cultures are dumped in the hazardous waste container because they can be harmful to the human beings, animals or the environment.

They can be mutant species that can be deadly to the environment. They can cause diseases to animals and human so, should be discarded in the hazardous waste.

All the chemicals should also be dumped into the hazardous waste container as it can also mutation in the DNA.

ANSWERED AT 22/01/2020 - 02:10 AM


QUESTION POSTED AT 22/01/2020 - 02:10 AM

Which statements about cells are true? a. Cells are the basic unit of all living things. b. Cells have unique functions and features. c. All cells have some recognizable similarities. d. Every single cell works like a small factory. e. Cells follow a genetic DNA blueprint to construct an organism. f. Cells are composed of different parts called organelles

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Explanation: The cells are known to be the basic structure and functional unit of the body. They have their unique functions based on the different organs in which they are located.

There are some recognizable similarities like structure for the cells. The cells need energy for working and it acts as a small factory. The replication of DNA acts as a blueprint to construct new cells to form an organism.

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ANSWERED AT 22/01/2020 - 02:08 AM


QUESTION POSTED AT 22/01/2020 - 02:08 AM

What is used to find true north on a compass

 it finds magnetic north

ANSWERED AT 22/01/2020 - 02:06 AM


QUESTION POSTED AT 22/01/2020 - 02:06 AM

Which of the following statements is false? The number of chromosomes is different in different organisms. There are more genes in a cell than there are chromosomes. A single gene can only influence a single trait. The karyotypes for a male human and a female human look different.

Answer:

The false statement is "A single gene can only influence a single trait".

Explanation:

A single gene can control or influence one or more than one trait. The ability of a single gene to control or affect more than one character or trait is called pleiotropy. However, according to one gene-one enzyme hypothesis gene act through enzyme production that each gene is responsible for single enzyme that affects a single step in a metabolic process.

ANSWERED AT 22/01/2020 - 02:00 AM


QUESTION POSTED AT 22/01/2020 - 02:00 AM

A gazelle is born with slightly longer legs which allow it to run faster than the other gazelles in the herd. This adaptation came may have come about because

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ANSWERED AT 22/01/2020 - 02:00 AM


QUESTION POSTED AT 22/01/2020 - 02:00 AM

When scientists read research articles in scientific journals they apply skepticism in order to

Not make a huge mistake in what they are working on 

ANSWERED AT 22/01/2020 - 01:59 AM


QUESTION POSTED AT 22/01/2020 - 01:59 AM

Which statement describes a problem with the peer review process in scientific research?

It always requires scientists to have to reanalyze their data.

ANSWERED AT 22/01/2020 - 01:58 AM


QUESTION POSTED AT 22/01/2020 - 01:58 AM

Which is true about scientific knowledge? A. It is never reliable. B. It is open to change. C. It always becomes a fact. D. It is rarely proven wrong.

TB. It is open to change.he thing about science is that a discovery may be made today and written up but by tomorrow something else is found that edifies what was found or proves it incorrect or make it obsolete.  .Therefore the answer is B. It is open to change

ANSWERED AT 22/01/2020 - 01:43 AM


QUESTION POSTED AT 22/01/2020 - 01:43 AM

Read the quotation below from a high school science student. We found that a new type of plastic grocery bag required half as much energy to recycle as the old type of plastic grocery bag. What is the student doing? A. Making a prediction B. Making random discoveries C. Forming a hypothesis D. Making a conclusion

If this is a true or false question, the answer would be D., making a conclusion. "We found" implies that the student has already done their research. They have already made their random discoveries, prediction, and subsequent hypotheses. The statement that they found no difference between the two grocery bags is a conclusion. Hope this helps.

ANSWERED AT 22/01/2020 - 01:43 AM


QUESTION POSTED AT 22/01/2020 - 01:43 AM

Which shows that the results of an experiment are reliable? A. The experiment creates ideas for new experiments. B. The experiment supports the hypothesis. C. The experiment can be repeated with the same results. D. The experiment uses a very simple procedure.

Answer: B. The experiment supports the hypothesis.

Explanation:

The hypothesis is a presummed explanation for the cause of natural process. It is supported by few evidences and it is required to be proved by using experimental procedures.

If the results of experiment satisfies the information of the hypothesis then it can be said that the hypothesis is true if not then it can be said that the hypothesis is false.

ANSWERED AT 22/01/2020 - 01:42 AM


QUESTION POSTED AT 22/01/2020 - 01:42 AM

A student uses a computer program to determine the effects of increasing pollutants on the animals in a zoo. What is this kind of modeling called? A. classification B. compare and contrast C. observation D. simulation

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ANSWERED AT 22/01/2020 - 01:33 AM


QUESTION POSTED AT 22/01/2020 - 01:33 AM

How does CO2 enter a plant?

Carbon dioxide from the air goes into their leaves and thats how plants get carbon dioxide.

ANSWERED AT 22/01/2020 - 01:32 AM


QUESTION POSTED AT 22/01/2020 - 01:32 AM

Plants can also be called ________ or _______.

Also called as "green plants"

ANSWERED AT 22/01/2020 - 01:32 AM


QUESTION POSTED AT 22/01/2020 - 01:32 AM

A probe is launched from Earth and lands on Mars. The gravitational acceleration on Mars is 3.7 m/s2. Which statement best compares the mass and weight of the probe? The mass of the probe remains the same, but the weight of the probe increases. The mass of the probe remains the same, but the weight of the probe decreases. The mass of the probe increases, but the weight of the probe remains the same. The mass of the probe decreases, but the weight of the probe remains the same.

The correct option is this: THE MASS OF THE PROBE REMAINS THE SAME, BUT THE WEIGHT OF THE PROBE DECREASES.

The mass of an object is a measure of the amount of substance it contains and this amount always remain the same unless there is a change in quantity of matter. This is the reason why the mass of a substance will remain constant, no matter where it is placed, whether on planet earth or on another planet. The weight of a substance on the other hand is a force, whose value depends on the force of gravity. Thus, the force of gravity that exist in the place, where the object is placed will determine its weight.

ANSWERED AT 22/01/2020 - 01:30 AM


QUESTION POSTED AT 22/01/2020 - 01:30 AM