what are major scientific issues today?
Answer:
The End of Antibiotics. Tuberculosis. ...
Clean Drinking Water. ...
Making Guns Safer. ...
Keeping Our Technological Edge. ...
Protecting National Parks. ...
Meeting Our Climate Change Promises. ...
Genetically Enhanced Humans. ...
Nuclear Safeguards.
how many sets of primers are needed for dna profiling?
how do structures of animals interact perform the function regulation
Answer:
Body systems interact to perform the functions of regulation, nutrient absorption, reproduction, and defense from injury or illness
Explanation:
Which property of water causes the space between molecules to ice
Answer:
In ice crystals, their hydrogen bonds link them together like acrobats, stacked one on top of the other, with their arms and legs outstretched. This provides more space between the molecules in the crystal structure of ice than the molecules of liquid water. As a result, ice is less dense than the liquid form
Explanation:
Hope this helps.
In photosynthesis, carbon dioxide gas is reduced and combined to form glucose. This is an example of
Answer:
This is an example of: Anabolism
What is jakes job on the chopper avatar? - avatar
Answer: tkae it to the 10th power and ine
Explanation:
Answer: what?
Explanation:
Determine whether the following actions are harmful to the environment or help to conserve the environment.
harms the environment
conserves the environment
Coach Luke encourages his football team to wear biodegradable
sneakers. The sneakers can be buried in the ground when they are
wom out, and after many years, they will decompose like a plant.
Chef Sonia uses disposable, nonbiodegradable kitchen towels in her kitchen. She uses them for everything from cleaning up spills to wiping her hands. She ends up using about two rolls in a month.
Sheila lives in Arizona. Because she lives in an area that receives plenty
of sunlight, she installs solar panels on her roof. More than 70% of the
electricity Sheila uses is generated by the panels. While she paid a
substantial amount for the installation, her monthly electric bill has decreased dramatically
Coach Luke encourages his football team to wear biodegradable sneakers. The sneakers can be buried in the ground when they are worn out, and after many years, they will decompose like a plant. This condition conserves the environment.
What do you mean by Environment?An environment may be defined as anything which is present in the surroundings of living entities that is either biotic or abiotic factor.
Chef Sonia uses disposable, nonbiodegradable kitchen towels in her kitchen. She uses them for everything from cleaning up spills to wiping her hands. She ends up using about two rolls in a month. This condition harms the environment because the towels are nonbiodegradable in nature.
The last situation conserves the environment because it utilized solar panels for energy production which is efficient in cost as well as helpful for the environment.
Therefore, each situation is mentioned above.
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Answer:
This is just to show how it should look ^^
The first fossils of animals with hard parts appeared about 541 million years ago. What percentage of geologic time does the fossil record represent
The percentage of geologic time does the fossil record represent 20%.
What are Fossils and Fossil records?Fossils refers to remnants or traces once-living thing from the past. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.
Fossil record is the compilation of all known and unknown fossils over a period of time.
The importance of fossil records includes:
1) Fossil records give scientists clues as to what the Earth was like millions of years ago.
2) Fossil records are used to determine how organisms alive today evolved.
3) It helps to understand how life in has changed over time.
Thus, percentage of geologic time does the fossil record represent 20%.
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Which level would a pig be placed in an energy pyramid/ food chain?.
Answer:
Once the students have constructed their food webs they will read an article on Feral Pigs and how they are affecting our ecosystem.
I will mark brainliest!!
7th grade!
Describe the structure and function of neurons. In your response, discuss the three types of neurons cells.
Answer:
Sensory neurons, Motor neurons, and Interneurons
Explanation:
Sensory neurons get activated and stimuli from their environment
Motor Neurons Transmit from the brain and spinal cords where they then go to the muscles, glands and many organs in the body
interneurons transmit impluses between the sensory and motor neurons
Cells that contain membrane-bound organelles are known as.
Answer:
Eukaryotes
Explanation:
are organisms whose cells contain a nucleus and other membrane-bound organelles.
The diagram below best defends which one of the following claims?
A.Genetic variation among offspring may result from the exchange of genetic material between homologous chromosomes.
B.Genetic variation among offspring may result from the duplication of homologous chromosomes.
C. Genetic variation among offspring may result from the deletion of homologous chromosomes.
D.Genetic variation among offspring may result from the mutation of homologous chromosomes.
Answer:
The answer is A
Explanation:
there isn't much to explain
Viral diseases are difficult to treat for which reason?
A) We do not have anything that will work against them
B) We cannot see them
C) Viruses are constantly changing
D) They are so rare
According to the research, viral diseases are difficult to treat because viruses are constantly changing.
What are viral diseases?They are infectious diseases that are caused by an infectious agent called a virus, which is a very simple microorganism that infects cells.
These are difficult to treat because virus mutations occur due to random errors in the replication of their genome when they multiply inside the cell.
Therefore, we can conclude that according to the research, viral diseases are difficult to treat because viruses are constantly changing.
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Chris wrote a few steps to describe how carbon circulates between the ground and living organisms.
Step 1. Plants absorb carbon dioxide in the air through photosynthesis.
Step 2. Dead plants are broken down by decomposers.
Step 3. Carbon stays in the ground for long-term storage as fossilized carbon.
If step 1 is removed, which statement best describes the effects of this missing step on the carbon cycle?
A. More carbon is stored in plants for long-term storage.
B. Less carbon is available for long-term storage in the ground.
C. Less carbon is stored in atmosphere instead of plants.
D. There are more fossil fuels available for energy use.
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
because then the carbon stays in the ground
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
If plants do not remove carbon from the air, it stays in the air and does not end up as fossilized carbon in the ground.
Name each of the following compounds
3.1 CaSO4
3.2 CO
3.3 (NH4)2CO3
3.4 SiO2
3.5 SO3
3.6 Fe2O3
3.7 KBr
3.1 Calcium sulfate aka gypsum often used for construction
3.2 carbon monoxide dangerous part of exhaust
3.3 ammonium carbonate used in baking powders
3.4 silicon dioxide aka silica for making glass
3.5 Ferric oxide used in paints and coatings
3.6 potassium bromide which was used in veterinary medicine for the treatment of epilepsy
sciencedirect
njgov
healthline
byjus
eurosileu
Cacti typically grow in very dry climates with infrequent rainfall. when it does rain, the rain usually only penetrates a few inches into the soil. which adaptation is most likely to help a cactus survive in the dry climate? thick xylem tissue to transport sugar leaves that have a thin cuticle extensive shallow roots that absorb water more dermal tissue for food storage
Answer:
extensive shallow roots that absorbs water
Answer: the answer is C..Thank me later good luck on life
Explanation:
If an aquarium holds 80 l of water and contains 170 guppies, what is the approximate density of the guppy population?
The approximate density of the guppy population is 2 guppy/L.
What is Population?The population may be defined as the number of individuals of the same species living in a particular area at a given time.
The capacity of the Aquarium to hold water = 80L.
The total number of guppies = 170.
Density = 170/80= 2.125.
Therefore, the approximate density of the guppy population is 2 guppy/L.
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Which of the following non-science subjects is often necessary to prepare for a career in science?
geography
art
history
math
The non-science subjects is often necessary to prepare for a career in science is Math. Option D. This is further explained below.
What is Math?Math is simply defined as the branch of science that studies numbers, forms, and their relationships.
In conclusion, Math is a non-scientific topic that is frequently required to prepare for a career in science.
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What is the physiological cause of a heart attack?.
Answer:
stress
Explanation:
when stress levels are high, your whole body is affected including your heart. when stress levels become so high that you're affected, your heart suffers and causes a heart attack.
When a cancer cell divides, which of the
following types of cells does it produce?
A. cancer
B. mature
C. immature
Answer:
A. cancer disease
not sure
A type of fuel made from corn or sugar is ______.
A) biomass
B) ethanol
C) geothermal
D) geyser
E) peat
Answer:
B) Ethanol.
Explanation:
A type of fuel made from corn or sugar (but primarily from corn) is ethanol. ethanol is typically blended into gasoline, though it is available as a stand alone. It is also used for many things, including but not limited too gasoline, chemicals, and alcoholic beverages.
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What is the function of the intestine in an earthworm?
Answer:
Complete digestion of food takes place in the intestine. Various enzymes present in the intestine act on food and digested food gets absorbed. Typhlosole increases the absorption surface of the intestine.13
Humans are dependent on a functioning biosphere and other ecological systems for survival. please select the best answer from the choices provided t f
The statement 'Humans are dependent on a functioning biosphere and other ecological systems for survival' is TRUE.
What are ecological systems?The expression ecological systems make reference to the different levels of organization of the ecosystems.
These systems (ecological systems) are found in a delicate equilibrium in nature.In conclusion, the statement 'Humans are dependent on a functioning biosphere and other ecological systems for survival' is TRUE.
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The genetic diversity is the same as species diversity.
This was written as a statement, but I'll answer it as if it were a true or false question.
Answer:
False
Explanation:
Genetic diversity is the range of different traits within a species. Species diversity is the number of different species present in a place and the amount of each of those species. The difference is that genetic diversity refers to something within one species whereas species diversity refers to multiple species within a common location, or community.
Describe how natural selection can occur in a population.
Answer:
Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation.
Explanation:
what is the difference between the pelvic born of human and pelvic born of primates
The most noticeable differences between humans and other apes in the pelvis are: Ilium. In humans, the ilium (upper section of the innominate bone) is shorter and wider. It bends around the trunk in humans, but is flat against the rear of the trunk in apes.
Answer:
The ilium (top portion of the innominate bone) in humans is shorter and broader. It curves around the trunk, whereas in apes it is flat against the back of the trunk
What features generally characterize cancer cells? Select all that apply.
A. rapid cell division
B. large or irregularly shaped nucleus
C. lack of cell organelles
D. long tubular shape
A student is investigating how reaction rate changes over a range of enzyme concentrations. The student uses excess reactants
Which of the following graphs best represents the relationship between enzyme concentration and reaction rate?
help pls:) i need it now
hi, these are the answers
hope it helps!
Explanation:
1)nasal cavity
2)esophagus
3)
4)tuble
5)liver
6)stomach
7)large intestine
8)small intestine
9)intestine
10)small intestine
11)waste out tube
12)identity oxygenated and deoxygenated
13)anus
Using sentences, describe three specific examples of the interconnectedness of the organisms found in Gorongosa National Park.
Located at the southern tip of Africa's Great Rift Valley, Gorongosa National Park is home to an astounding diversity of animals and plants. Once known as "the place where Noah left is ark", wildlife populations were decimated by nearly two decades of civil war.
Conservation efforts to restore the park are currently underway, with the support and cooperation of many organizations.
How Technology is important in order to conduct research on lions in Gorongosa national park?Technology is important in order to conduct research on lions in Gorongosa national park. Studying lions is not that easy, however, applications of technology like satellite collars that demonstrate complete information on the daily activity of lions has greatly developed the study of lions.
Thus, most notably that of the Carr Foundation/Gorongosa Restoration Project.
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