Answer:
A group of ringed seals
Explanation:
A population is a group of several of the same species of animal.
Answer:Some animals in Russia’s ecosystem is Arctic Ocean dwellers like polar bears, seals, whales, and walruses.
Explanation:
Select the correct answer.
Kevin has two test tubes filled with a clear liquid. One of them is water, and the other is vinegar. He adds a little baking powder to each liquid to
identify the test tube that contains vinegar. Select the correct observation and conclusion.
OA The liquid in which baking powder dissolves is vinegar.
OB. The liquid in which baking powder settles down is vinegar.
OC. The liquid in which bubbles are formed is vinegar.
OD. The liquid that does not change color is vinegar.
O E. The test tube that becomes cold contains vinegar.
Answer:
C. The Liquid which bubbles form is vinegar
Explanation:
Bubbles are one of the signs of a chemical reaction when there's bubbles there's gas.
Answer:
OC. The liquid in which bubbles are formed is vinegar.
Three samples were taken and were put in three test tubes each named as A,B and C. In A, milk was added, B had meat pieces and C had crushed potatoes in it. Observe the names of tests written above each test tube and write (for all test tubes) • Material Required • The Procedure • Expected End Results • Conclusions • Safety Measures (if any) If you find any negative result. Explain why it is so?
Answer:
A is the test of protein, B is the test for fat and C is the test for starch
Explanation:
For A, the materials required are;
watercopper sulphate solutionA droppercaustic soda solution- the procedure;
with the dropper, add 10 drops of water and shake the test tubeadd 2 drops of copper sulphate solutionadd 10 drops of the caustic soda solution, shake and observe.- the result and conclusion;
if the solution turns violet, protein is present.
For B, the materials needed are;
paper- the procedure;
wrap the meat in the paper and crush itunwrap the meat, straighten the paperthen let it dry and observer- the result and conclusion;
if an oily patch is observed in the paper, then fat is present.
For C, the materials are;
iodinedropper- the procedure;
add a few drops of the iodine to the crushed potatoes- the result and conclusion;
if a blue-black coloration is observed, starch is present.
How many total atoms are present in the compound Mg(OH)2
Please answer quickly, timed test!!
Which term is correctly paired with its role in the body?
A) insulin – a sugar that regulates blood glycogen levels
B) ADP – a molecule that releases energy when it forms ATP
C) glycogen – a hormone found in blood that regulates blood glucose levels
D) glucose – a sugar found in blood that can be broken down to produce ATP
Where in the chloroplast does the light independent reaction occur
Answer:
In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.
Explanation:
Brainliest please?
Great amount of electromagnetic energy from sun and other bodies in space travel through space. Which is a logical conclusion about electromagnetic waves
Energy must be very low
Frequency must be very low
Their wavelength must be very short
these wave can travel without the medium
Answer:
last option- these waves can travel without the medium
If you are analyzing the nutrients in a food, how would you decide if the food is healthy or not?
Answer:
If a food has a daily value of 5% or less of a nutrient, it is considered to be low in that nutrient. A food is a good source of a nutrient if the percent daily value is between 10% and 19%. If the food has 20% or more of the daily value, it is considered an excellent source of that nutrient.
Explanation:
Which are two factors that affect water quality?
A. odor and acidity
B. density and toxicity
C. texture and color
Answer:
all of the answers affect water quality
if thats a choice
The two factors that affect water quality odor and acidity.
What are the causes of water pollution?Causes of water pollution Are:
leakage from oil and chemical containers.Trade effluent going into surface water drains instead of foul water drains, or straight into watercourses.Removing too much water from surface waters and groundwater.Thus option "A" is correct that is odor and acidity.
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All the genes, including all of the alleles for each gene, in a population are called
A.a genotype
B.allele frequency
C.a gene pool
D.genetic variation.
during internal fertilization, and embryo forms inside the female's body
True or False?
Answer:
Explanation:
mi belive the answer is true but i not sure sorry
Answer:
True
Explanation:
Internal means inside, therefore the embryo forms inside the female's body.
How does the cell cycle ensure an organism’s survival?
Options:
I. It helps organisms grow and develop
II. It helps all organisms repair tissues
III. It helps all organisms reproduce
I. and II. only
Answer:
Cell growth and development include its repair. As cells grow old, they wear off. Sometimes they suffer injury and bruises, but they are able to repair themselves by growing new cells in a process called Mitosis. As living things grow, they undergo a process called aging (age
Explanation:
Answer. The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. ... Plants require the cell cycle to grow and provide life for every other organism on earth
so it should be 1&2 only
What changes an object's speed and direction? *
A. Friction
B. Acceleration
C. Gravity
D. Inertia
Answer:
C
Explanation:
A change in speed is a change in velocity – so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. Force – a push or pull When a force acts on an object; it may change the object’s acceleration (speed, direction, or both).
What kind of adaptations could have given homosapiens an evolutionary advantage over neanderthals and other species of humans?
Answer:
humans had more developed 'social' brains than Neanderthals, which enabled us to colonize new habitats and adapt to climate fluctuations
Explanation:
A more developed brain is considered to be an adaptive advantage that enabled early humans to leave Africa and colonize new habitats. Modern humans are able to adjust to new environments, situations, and socialize with other humans because the brain is a social organ. Although Neanderthals were able to occupy an important area of Europe, H. sapiens could colonize faraway lands, migrating into tropical forests, deserts, and glacial lands (colder areas than those colonized by Neanderthals). These early humans formed social groups which enabled them to find food more easily, thus greatly increasing their chances for survival.
How is mitosis different from binary fission?
Answer:
B
Explanation:
because the main differnt berween bianary fission and mitosis is that bianary fission is a way ofbtge asexual type of reproduction in prokaryotes in which one organism divides to for two progency orhanisms while mitosis is a process in which a eukaryotic cell divides to form two daughter cells which are identical.How does blocking out the sun with thick dark clouds affect this mechanism that you see in the figure
Answer: the sun powers the whole thing
The medical team taking care of a patient with diabetes doesn't constantly
work together, but they are familiar with the patient and each other, the
patient's diagnosis, when each team member should step in to help, and how
they can contact each other. Which of the following types of shared
responsibilities does this demonstrate?
O A. Communication
O B. Leadership
O C. Joint decision making
D. Focus
Answer:a
Explanation:
Examine figure 1 below. Which houses the DNA.
Which limiting factor is density independent? a. food supply b. drought c. disease d. competition
Answer:
im pretty sure its d. competition
Explanation:
what are the 3 negative effects of global warming/climate change ?
Answer: Effects on weather. Global warming leads to an increase in extreme weather events such as heat waves, droughts, cyclones, blizzards and rainstorms. Such events will continue to occur more often and with greater intensity.
Explanation: nothing to see at this point ;)
Answer:
The ice is melting specially at the earth's pole. This includes moungain glaciers . Much of this melting ice contributes to increse sea-levels.Hlonal sea levels are rasing 0.13 inches a year.Rasing temperature is also an effect oc vloba warming . This causes to the wildlife.
The mechanism of natural selection works, primarily, to change which of the following?
The genotypes of individual organisms and their expression
The rate of mutations resulting from external factors
The distribution of traits in a population over time
The likelihood that traits of organisms are passed on
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Answer:Natural selection works to change populations by favoring some variations in individuals and working to eliminate other variations in individuals. Natural selection is basically a culling process.Apr 2, 2018
Explanation:
The branch of science which deals with genes and inheritance is called genetics.
The correct answer is C.
Adapting in an environment changes in order to survive in a system is called natural selection. The key factor for natural selection is the variation that leads to the change in the genotype of the population.
According to the question, the correct answer is C because the changed and evolved traits must be transferred to the next generation to have better chances of surviving.
Hence, the correct answer is C. The likelihood that traits of organisms are passed on
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Hi- Uhm, Help, please?
Answer:
At the end of meiosis there are two daughter cells, at the end of meiosis telopashe there is four different cells
Explanation:
The chart shows the total amount of nitrogen oxides (NOx) and sulfur dioxide (SO2) that coal-fired utilities emitted between 1999 and 2013. Based on the chart, do you think the steps taken by the EPA and the factories were effective in reducing air pollution from these two pollutants? Give your reasons.
Answer:
Yes.
Explanation:
If the graph line comes lowers from 1999 to 2013 so it means that steps taken by the EPA and the factories were effective in reducing air pollution. The steps taken by the EPA and the factories were effective in reducing air pollution occurs from two pollutants i. e nitrogen oxides (NOx) and sulfur dioxide (SO2) if they install chimneys which collect these gases and reduce pollution. if the factories uses coal having less concentration of sulphur so less air pollution occurs.
Answer:
Yes, the steps taken by the EPA and factories were effective in reducing air pollution from NOx and SO2 because the emissions of these two pollutants have decreased over the years.
Explanation:
When do mountains get built?
Answer:
Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust.
Explanation:
I hope this helps
Explanation:
movement of tectonic plates create volcanoes along the plate boundaries which erupt and form mountains
a volcanic Arc system in a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust
hope this helps
Salivary amylase is an enzyme in humans that breaks down starches. What substances would humans have difficulty digesting without this enzyme
Group of answer choices
Answer:
Carbohydrates
Explanation:
High in fats and very fatty
In the absence of salivary amylase, humans would have difficulty digesting carbohydrates.
What is salivary amylase?Salivary amylase is produced by the salivary glands located towards the back of our mouth. Salivary amylase is a very small percentage of the total amount of amylase produced by the body.
Most of the amylase in the body is secreted by the pancreas. Salivary amylase is secreted in the saliva. This begins the process of the breakdown of food in the mouth itself.
Salivary amylase breaks down carbohydrates into maltose units which is a disaccharide. The maltose is ultimately broken down into glucose.
Carbohydrates are a very significant portion of the diet of a large percentage of the global population. Various kinds of bread and rice have a large portion of them composed of carbohydrates.
Therefore, in an absence of salivary amylase, humans would have difficulty digesting carbohydrates.
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Plz help its my last question i will give brainliest!!!!
Which of the following is true regarding enzymes?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Enzymes can only be used once during a reaction.
(Choice B)
B
Enzymes are reusable.
(Choice C)
C
Enzymes are usually carbohydrates.
(Choice D)
D
Enzymes denature at their optimum temperatures.
Answer:
I believe the answer is B
Explanation:
F. Identify these animals and write the names of their body covering.
In
fertilization, fertilization occurs within the body of the female.
internal
conjugation
external
pollination
Answer:
internal
fertilization occur indidey the woman
Type your answer in the box.
The video reports a decline in the number of "packers" in California. What are packers, and what challenges does
their decline pose to firefighters who fight wildfires?
Answer:
packers are people who pack mules with firefighting supplies and deliver those supplies to the firemen fighting fires in california. The decline of packers in california means that there is a smaller chance that the firemen wont have gear and supplies to fight the fire. The fires will win and burn down people's homes and cost some people thier lives.
Explanation:
Don't worry; this isn't the direct answer. I wrote this by myself.
what is the difference between redshift and blueshift?
Answer:
Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. The concept is key to charting the universe's expansion. Visible light is a spectrum of colors, which is clear to anyone who has looked at a rainbow.
Explanation:
3. The oxidation of organic compounds to extract energy from chemical
bonds is called?