Answer:
A compound contains atoms of different elements chemically combined together in a fixed ratio. A mixture is a combination of two or more substances where there is no chemical combination or reaction. ... Mixtures contain different elements and compounds but the ratio is not fixed nor are they combined via chemical bonds.
Explanation:
Infrared waves have _____ than microwaves. A. More energy B: lower frequency C: longer wavelength D: all of the above
Answer:Option A
Explanation:
Even though microwaves have a little more energy than radio waves, infrared wave has more.
Infrared waves have lower frequency than microwaves. Even though microwaves have a little more energy than radio waves, infrared wave has more.
What is electromagnetic waves?Electromagnetic waves are waves which can travel through the vacuum. electromagnetic waves have electrical and magnetic component associated with them. They all travel with the speed of light. Radio waves, micro waves, infra red and ultraviolet are all electromagnetic waves.
It is visible that wavelength and frequency follow inverse relation. For increase in wavelength, the value of frequency decreases and vice-versa for higher wavelength, the electromagnetic wave will also have lower frequency.
Therefore, Infrared waves have lower frequency than microwaves. Even though microwaves have a little more energy than radio waves, infrared wave has more.
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How might the migration of individuals in or out of the habitat affect the frequency of each allele in this population?
Answer:
they can
Explanation:
they have feet
What is an endangered species?
Your own words
hello,
endangered species are animal/species that are very likely to be extinct/gone.
another meaning: are in danger to be seriously in risk of being gone.
Answer:
An endangered species is a species that is in danger of extinction.
Endangered species occur when there is a loss in food supply, shelter, or another resource that they need to survive. Endangered species are at risk of extinction if not helped.
Hope this helps!!!
Explanation:
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used and function of interferometer?
Answer:
They are used to measure everything from the smallest variations on the surface of a microscopic organism, to the structure of enormous expanses of gas and dust in the distant Universe, and now, to detect gravitational waves.
You put 4 plants and 4 mice in a terrarium which is sealed so nothing can get in or out (solid, liquid or gas). You love your plants and your mice. One of the plants begins to wilt and turn yellow. Use what you know about photosynthesis and respiration to decide what to do to keep all of the organisms as healthy as possible? A.Put another mouse in the terrarium.
B.Take one mouse out of the terrarium.
C.Take all of the plants out of the terrarium.
D.Take all of the mice out of the terrarium
Answer:
imma be honest this is not good but when in doubt choose c
Explanation:
Answer:
A
the only element that you are allowed to play with that would effect a photosynthetic plant in this question is the amount of CO2 which adding another mouse would help with increasing that
Explanation:
For larger distances such as the distance between objects in the far reaches of our galaxy astronomers ensure in units of?
Answer:
Lightyears
Explanation:
When dealing with very large interstellar distances, astronomers do not use the regular miles, kilometers, or meters we are used to. This is because they are just too small to be used as a metric when measuring such large distances. As a matter of fact, the earthly number system will quickly be exhausted when trying to measure some of these interstellar distances.
Instead, astronomers make use of Lightyears. Lightyears are defined by the distance traveled by an object moving at the speed of light if it was moving constantly at that speed for one year.
This can properly be used to estimate interstellar distances. since its value is very large. 1 lightyear = 9,461,000,000,000 Km
If we say that our closest star is 9 lightyears away, we are saying that it will take an object moving at the speed of light 9 years to travel from that star to our planet.
Why is the nucleus called the "control center" of the cell?
Answer:
because it gives signals out to the rest of the cell.
Explanation:
Answer:
because it controlls all the activities of the cell including cell reproduction, heredity. these proteins in turn, form the structural units of cells and control all chemical processes within the cell.
need help asap please
Answer:
the one surrounding the nucleus. i cant see what number it is
Explanation:
What human actions contributed to the nutrient pollution of Lake Okeechobee?
PLZ HELP DUE IN 5 MINUTES
Answer:
well i believe its the burning of coal and it releases nutrients
Explanation:
but other then that i dont know but hope this helps 3 min
Do other planets have months? Why or why not?
Answer:
Well..this is HARD lol i would say yes
Explanation:
Because We here on Earth have defined a month as the time it takes the moon to complete one orbit around our planet.
which is a base unit used in the metric system?
A:quarts
B:liters
C:pints
D:degrees Fahrenheit
pls what's the answer
Answer:
B:Liters
Explanation:
Liters are used in the metric system
What does "chemical energy" refer to?
i think its energy that made by our body.. its form from a chemical substance (from food). The chemical energy in our body is the heat we give.
Describe how 4 different organ systems are used to help you ride a bicycle. Be detailed about the job of each organ system to complete this task. Answer in complete sentences for full credit.
Answer:
Your skeletal system supports your body as you move your legs to pedal. Your muscular system lets you tighten your hand around the handlebars to steer the bicycle. As you pedal faster, the speed of your breathing increases. This means that your respiratory system is breathing in more oxygen for your cells to use.
Explanation:
hope this helps
How do plants get the energy they need to make sugar?
Answer:
Plants convert energy from sunlight into sugar in a process called photosynthesis. Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen
Explanation:
Answer:
from using photosynthesis
Explanation:
or from the sun i kinda forgot about that
I need the ANSWER ASAP!!!!!!!!!!Which statement describes what will most likely occur when warm air cools and the temperature drops to the dew point?
A. Air will contain more water vapor.
B. Dew will form on leaves.
C. Clouds will disappear.
D. Water vapor in the air will evaporate.
Given what we know, we can confirm that what will most likely occur when warm air cools and the temperature drops to the dew point is that dew will then form on leaves.
What causes dew?This is often caused by a drop in temperature.When the temperature drops to the dew point, the air is no longer hot enough to maintain water in its vapor form.Therefore, the water cools to the point that it becomes a liquid and drops to the ground, forming dew.Therefore, given that we refer to the dew point as the point at which the temperature is no longer hot enough to maintain water in its vapor form, once the temperature drops to this point, water becomes liquid, and dew forms on leaves.
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Answer:
B
Explanation:
took the quiz
Who is a scientist?
A. A person who likes to ask questions.
B. A person who likes to find answers to questions.
C. A person who works with chemicals.
D. All of the above.
Answer:
A scientist asks questions and also try to find the answers by sometimes conducting experiments or observations that may require chemicals, so the answer is all of the above.
Answer:
d,all of the above
Explanation:
Jennie makes quilts. She can make 7 quilts with 21 yards of material. How many yards of material would be required to make 12 quilts?
Answer:
36
Explanation:
First find how many yards to make in one quilt.( 21/7) Once you know that times it by 12 to know the answer.
Answer:
I think the answer is 36 but i don't know
Explanation:
What process ensures that all the tissues and organs of an organism are in their characteristic places?
Answer:is any individual entity that embodies the properties of life. ... Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea.
Explanation:
Answer:
Pattern Formation
Explanation:
Cytoplasmic determinants and inductive signals both contribute to the development of a special organization in which the tissues and organs of an organism are all in their characteristic places, a process known as pattern formation.
What did early organisms release into the air
Answer:oxygen
Explanation:
Is Photosynthesis is one of the functions of DNA?
Coal is a fossil fuel produced from plant material underground over very long geological periods of time. What are petroleum and natural gas originally formed from?
Question 11
Which statement best describes the relationship between inherited traits and genes?
A
An individual's inherited traits are determined by genes, which are located inside a person's chromosomes.
B
An individual's inherited traits are based on a person's environment, and the traits change over time.
С
Inherited traits are determined by a person's health and nutrition.
D
Inherited traits are determined only by a person's maternal parent
Answer: A. Genotype is inherited
Explanation: b,c are about phenotype
D, since the maternal parent is mentioned, one can assume a diploid, sexually reproducing species, in which case both parents’ genes contribute.
Through their genes, parents transmit features or qualities to their offspring, such as eye color and blood type. Thus, option A is correct.
What is relationship between the inherited traits and genes?We can pass on inherited features to the next generation since they are encoded in our DNA.
Examples include eye color, height, skin tone, and hair color. The differences that come from reproduction may be passed down through families, increasing the likelihood that entities will survive.
Dominant and recessive alleles are the two categories. A recessive allele is written with a lowercase letter, and a dominant allele is written with a capital letter.
The progeny will exhibit the dominant trait if a gene pair contains the dominant allele.
Therefore, An individual's inherited traits are determined by genes, which are located inside a person's chromosomes.
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The health, management, and conservation of biodiversity is a challenge facing ecosystems worldwide. The major factors that
affect the health and function of the Great Barrier Reef are climate change and pollution. Which question investigates the effects
of abiotic factors on the reef ecosystem?
A)
How do calcium levels affect the habitat of stony corals?
B)
How do nitrogen levels affect the number of algae in the reef?
C. How does the number of predators affect the lionfish population?
D
How does water temperature affect the reproduction rate of coral?
Answer: C
Explanation:
What would most likely happen to the chipmunk population in 2014 if the population went up to 22 million in 2013?
Answer:
The food source of the chipmunks would decrase, so chipmunks would have to compete for food. Leaving some to die from hunger.
12
The diagram to the right shows a proposed theory of the origin of eukaryotic cells, called
endosymbiosis.
Which of the following explains why cells that contained mitochondria-like organelles had
evolutionary advantage? *
(1 Point)
They were able to photosynthesize
They had more DNA
They were immune to bacterial invasion.
They were able to make more use of available energy.
Answer:
They were able to make more use of available energy.
Explanation:
in your own words describe what the geological time scale is.
Answer:
Geological time scale is the arrangement of major divisions of geological time into eras, periods and epochs on the time scale.
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Liver tissue is a combination of many types of cells. In addition to other tissues, it contains connective tissue and epithelial tissue. Which two sentences correctly identify the roles of these tissues?
Answer:
• Connective tissue supports the framework of the liver, and epithelial tissue protects the liver.
• Connective tissue holds the liver in place during movement, and epithelial tissue forms the lining of the liver
Explanation:
The function of the connective tissue is to connect, and also give support to every other tissues in our body system.
Epithelial tissues covers the surface if our body and they protect the body, helps the body perform other functions like sensory reception as well.
Therefore, the two sentences that correctly identifies the role of the tissues are:
• Connective tissue supports the framework of the liver, and epithelial tissue protects the liver.
• Connective tissue holds the liver in place during movement, and epithelial tissue forms the lining of the liver
5. José plans to use a microscope to observe a cell from a maple leaf and a cell from a snake's skin. Which of the following with José most likely
see in both cells?
a. Cell wall
b. Chloroplasts
c. Nucleus
d. Tissue
What restriction enzyme would you use to cut a plasmid for insertion of the gene of interest in the creation of a recombinant plasmid?
Answer:
Restriction endonucleases
Explanation:
Restriction endonucleases are restriction enzymes that is used in cutting of deoxyrbonucliec acid (DNA)that recognizes a target sequence known as target site and then cuts the DNA into two pieces at or near that site.
Many restriction enzymes produce cut the ends with short, single strand, two of which if match can base pair and stick together. The enzyme DNA ligase helps in the joining of the molecule which seals gaps in the DNA backbone.
The theory of plate tectonics states that Earth's plates are always in motion. What geological evidence supports this statement?
Continental and oceanic plates differ in densities.
Selsmic activity occurs along plate boundaries.
Less dense plates always subduct beneath the more dense plates.
The sizes and shapes of continents remain the same over time.
Answer:
Seismic activity occur along plate boundaries.
Explanation:
Since the plates are constantly moving, the places where the plates meet, the boundaries, have seismic activity.
The geological evidence that supports this statement is that seismic activity occurs along plate boundaries. So, the correct option is B.
What are tectonic plates?Tectonic plates are huge slabs of rock that divide Earth's crust and move constantly to reshape the Earth's landscape. Such plates are also known as lithospheric plates and are generally composed of both continental and oceanic lithosphere.
Since the tectonic plates are constantly moving and the places where the plates meet and form the boundaries have seismic activity.
Therefore, the geological evidence that supports this statement is that seismic activity occurs along plate boundaries.
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