Darwin explained that all life came from ________________
Question 3 options:
one bacteria
one adaptation
The 4 kingdoms of living things
one common ancestor
Answer:
one common ancestor
Explanation:
Although Darwin’s theory is often described as the theory of evolution by natural selection, most commentators recognize that common ancestry (the idea that all organisms now alive on earth and all present day fossils trace back to one or a few “original progenitors”) is an important part of the Darwinian picture.
Answer:
Darwin explained that all life came from one common ancestor.
Na + MgF2 → NaF + Mg balance classification
Answer:
2Na + MgF2(make the 2 the ones that are small at the bottom cause I can't type it out-) turns into 2NaF + Mg
Explanation:
Now it is balanced because on both sides we have 2Na's, 1Mg and 2F's
A hypothetical phylogeny for marsupial relatedness is shown here. Macropodidae is the marsupial family. Which of these statements is supported by the phylogenetic tree shown here? Select ALL that apply.
A) M. bicolor and M. parma are in the same subspecies category. Eliminate
B) M. agilis and M. eugenii share the most recent common ancestor.
C) T. thetis and P. xanthpus share the most characteristics in common.
D) T. thetis and P. xanthpus share the greatest number of taxa levels than other species.
E) M. agilis and M. eugenii share the greatest number of taxa levels than other species.
Answer: B and E
Explanation: USATESTPREP
Question 5 (5 points) (04.03 MC) A student made the following diagram to represent cellular respiration. Why is this diagram incorrect?
A.water is not used up during this process.
B.glucose is not used up during this process.
C. The arrow for oxygen should point in the opposite direction.
D. the arrow for carbon dioxide should point in the opposite direction.
Answer:
A
Explanation:
The chemical equation for cellular respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O (+ ATP)OR: Glucose + Oxygen → Carbon Dioxide + Water (+ Energy)
Since water is on the right side of this equation, it is produced as a result of the metabolic process rather than used up. So, the correct is A.
Hope this helps! You've got this!
If an egg cell contains 4 chromosomes, how many chromosomes would a sperm cell of the same
species contain?
a. 4, b.8, c.16
Why is adequate lighting necessary in a balanced aquarium?
a. Fish need light to see their food.
b. Fish take in oxygen in the dark.
c. Plants expel carbon dioxide in the dark
d. Plants grow too rapidly in the dark.
Answer:
A. Fish need light to see their food
Explanation:
B is incorrect because fish take in oxygen constantly to respirate. If they only took in oxygen when it was dark they would die.
C is incorrect because expelling CO2 is also a constant process as a part of the reactions that take part inside living organisms, so it happens constantly (a bit like B)
D is incorrect because plants need light for food (photosynthesis) and would most likely die or have stunted growth if left in the dark.
A is correct because when it is dark, fish rely on other senses to find food as most fish cannot see as well in the dark, therefore when they have light they can see their food more easily.
Hope this helped!
the arctic region is a treeless plain with frozen ground. true or false
Answer: Its True, They are largely treeless because its the arctic.
What is the mrna sequce of the T T C A A T G G T C T A G G G
Answer:
AAGTTACCAGATCCC
Explanation:
always remember, you would just switch them, The Opposite Of T is A and The Opposite of G is C, and vise versa.
Explain how a school bus uses all of these energy types.
-Mechanical
-Chemical
-Electrical
-Thermal
Answer:
thermal
Explanation:
the use of fuel, the fuel move and convert to fire by the help of the plug which put a spark to mix with the fuel to enable movement
Answer:
electrónico como comutadora
2. About how often does a Full Moon happen?
Answer:
usually once a month
Explanation:
The full moon is the lunar phase when the Moon appears fully illuminated from Earth's perspective. This occurs when Earth is located between the Sun and the Moon (more exactly, when the ecliptic longitudes of the Sun and Moon differ by 180°).
What things were like before Malcolm X accomplishment?
Answer:
"His charisma and oratory skills helped him achieve national prominence in the Nation of Islam, a belief system that merged Islam with Black nationalism. After Malcolm X's assassination in 1965, his bestselling book, The Autobiography of Malcolm X, popularized his ideas and inspired the Black Power movement"
Malcom X other accomplishments were to create his own spiritual organization, and to stop racism.
Will give Brainliest within five minutes of answer - Why do we want to explore Mars more than the other planets/moons even though it is not currently habitable (with its temperatures, atmosphere, etc.)? How can it be habitable?
Answer:
After the Earth, Mars is the most habitable planet in our solar system due to several reasons:
Its soil contains water to extract
It isn’t too cold or too hot
There is enough sunlight to use solar panels
Gravity on Mars is 38% that of our Earth's, which is believed by many to be sufficient for the human body to adapt to
It has an atmosphere (albeit a thin one) that offers protection from cosmic and the Sun's radiation
The day/night rhythm is very similar to ours here on Earth: a Mars day is 24 hours, 39 minutes and 35 seconds
The only other two celestial bodies in orbits near the Earth are our Moon and Venus. There are far fewer vital resources on the Moon, and a Moon day takes a month. It also does not have an atmosphere to form a barrier against radiation. Venus is a veritable purgatory. The average temperature is over 400 degrees, the barometric pressure is that of 900 meters underwater on Earth, and the cherry on top comes in the form of occasional bouts of acid rain. It also has nights that last for 120 days. Humans cannot live on Mars without the help of technology, but compared to Venus it's paradise!
Additional info:
Mars is an obvious target for exploration because it is close by in our Solar System, but there are many more reasons to explore the Red Planet. The scientific reasons for going to Mars can be summarised by the search for life, understanding the surface and the planet’s evolution, and preparing for future human exploration.
Searching for life on Mars
Understanding whether life existed elsewhere in the Universe beyond Earth is a fundamental question of humankind. Mars is an excellent place to investigate this question because it is the most similar planet to Earth in the Solar System. Evidence suggests that Mars was once full of water, warmer and had a thicker atmosphere, offering a potentially habitable environment.
help I will mark brainliest
Answer:
A. Clumped, uniform, random
Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.
I think It is A what is the question?
Explanation:
What was the result of the Reconstruction Amendments (the Thirteenth, fourteenth, and fifthteenth Amendments)?
Slavery was abolished and voting rights were extended to all male citizens. The Thirteenth Amendment (ratified in 1865) abolished slavery. The Fifteenth Amendment (ratified in 1870) extended the voting right to all male citizens without discrimination in terms of race, color, or previous servitude.
Nicole made the model shown below to represent the steps in the formation of a thunderstorm.
The diagram has six boxes. The first box on the top left has the symbol '?' in it, an arrow points from it, over to the left to a box with the text 'Meets coool air'; this box has an arrow pointing down from it to a box with the text 'Condenses'; this box has an arrow pointing to the left to a box with the text 'Clouds formed'; this box has an arrow pointing to the left to a box with the text 'Clouds grow bigger'; and this box has an arrow pointing down from it to a box with the text 'Precipitation'.
© 2010 FLVS
Which of these best fits the empty cell in Nicole's model?
warm, moist air rises
warm, dry air descends
water vapor condenses in clouds
water vapor evaporates from ocean
Answer:
The correct answer is - warms, moist air rises.
Explanation:
When moist warm air rises and meets with the surface of cool air the more dense air that is cold air end up below the warm moist air in the troposphere it condenses as it rises.
The condensation of the warm, moist water leads to the formation of cloud formation. This cloud gets bigger and bigger until it precipitates and rain fall occurs.
Answer:b
Explanation:took the test
PLEASE HELP !! If a person with a mass of 50 kg
and a person with a mass of 109
kg both jumped off a cliff, which
one will hit the ground with more
force? Remember: Gravity causes
things to accelerate at 10 m/s 2
Answer:
109kg? would hit the ground with more force
Explanation:
Im not sure if this is right but think of it like going down a hill, if your riding a bike with your dad who is 150 pounds and your 90 pounds, he will go faster. Sorry I just took a guess
Three common methods employed in the cleanup of oil spills are aeration of water, skimmer boats, and genetically engineered bacteria aeration of water, skimmer boats, and genetically engineered bacteria A aeration of water, phytoremediation, and genetically engineered bacteria aeration of water, phytoremediation, and genetically engineered bacteria B skimmer boats, high temperature incineration, and phytoremediation skimmer boats, high temperature incineration, and phytoremediation C large floating booms, high temperature incineration, and phytoremediation large floating booms, high temperature incineration, and phytoremediation D large floating booms, skimmer boats, and genetically engineered bacteria
Answer:
large floating booms, skimmer boats, and genetically engineered bacteria
Explanation:
Skimmers are used in the clean up of oil spills it makes use of containment skims that act like a fence and the surface of water and prevent the oil spill from moving or spreading across the water surface. It contains the oil into a particular place. Floating booms helps in the sucking out of oil in the confined area, its act like a vacuum pump and suck out all the oil spills available in the areas confined by the skimmers.
Bioremediation involves the use of microorganisms to clean up spills this micro organism breaks down this petroleum product into harmless substance through their metabolic activities. Genetically modified Bacterial can be use for this purpose to help break down this hydrocarbons and make them less toxic.
This is the combination of decomposed organic matter and weathered rock that supports plant growth
Answer: Soil
Explanation:
Why do we use specific terminology when referring to the gender and species of common domestic animals?
Answer:
To know which exact organism you are referring to, and there is no confusion about it.
Explanation:
To identify organisms, we usually use two names. The common name and the scientific one.
Scientific name: binomial nomenclature.
The scientific name designates a species through binomial nomenclature. The binomial nomenclature is a standard agreement used to identify different organisms. It has international validity, and it does not change among regions or languages. One binomial name is used only on one organism and can not repeat. It is composed of two Latin words: gender and the specific name. Many species might share the same gender for being very similar, so the specific name is used to identify each species.
Common names:
These are informal names, determined by the people of a region or area, that speak the same language. They are regional names, so they change from region to region, even when referring to the same organism. Usually, these names designate only organisms that have importance for the people. The same name might refer to different organisms, and in many cases, the same organism might receive many names. For this reason, there might be confusion when using only common names to talk about a species.
If we need to refer to a particular organism, we should always use the scientific name to avoid confusion. As it is internationally recognized and accepted, anybody can know which species you are talking about, independently of the region or the language. In most cases, people mention a species using the scientific name together with many of its common names.
what does the respritory system do?
Answer:
The respiratory system's main job is to move fresh air into your body while also removing waste gases.
Explanation:
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe.
Which type of organisms get their energy directly from the Sun?
A
Producers
B
Decomposers
C
First-level consumers
D
Second-level consumers
A. Producers is the answer.
Select three of the components that were proposed by Darwin for natural selection to occur. Check All That Apply Populations experience differential reproductive success.Populations experience differential reproductive success. Breeding is done intentionally with the intent to increase the frequency of desired traits.Breeding is done intentionally with the intent to increase the frequency of desired traits. Variation within a population is heritable.Variation within a population is heritable. Populations experience competition for resources.Populations experience competition for resources. The variations in a population make no difference in terms of reproductive success.The variations in a population make no difference in terms of reproductive success.
Answer:
.Variation within a population is heritable. Populations experience competition for resources.
Explanation:
Variation exist among individual, and this makes individual unique. Variation in shape,size,color exist in an organism.
Traits or character can be inherited from parents which means it can be transfer from one person or individual to another.
Each organism posses different traits for survival, some traits are presents as to better help some organism adapt to their environment.
The curves that form as a river matures are called
tributaries.
flood plains.
meanders.
divides.
Answer:
meander
Explanation:
Match the vocabulary term to the correct definition
HELP WILL MARK BRAINLIST answer IF U DO IT THE RIGHT WAY
WORTH 50% of GRADE HELP!!
Earth or the moon gets in the way of the
sun's light
Moon moves through Earth's shadow
Moon passes directly between the Sun
and Earth, preventing sunlight from
reaching Earth
Light from the Sun is partially blocked by
the Earth
Light from the Sun is completely blocked
by the Earth
Answer:
1 B
2 D
3 A
4 E
5 C
what is the definition of the earth's crust
Answer:
“Crust” describes the outermost shell of a terrestrial planet.
Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. Earth has three layers: the crust, the mantle, and the core. The crust is made of solid rocks and minerals.
Pls help me with this
Answer:
1) Temperate
2) Taiga
3) Temperate
4) Taiga
5)Temperate
6)Temperate
Explanation:
Which of the following geologic processes occurs in the shortest amount of time?
A. the erosion of a river canyon
B. separation of continents
C. the formation of an island chain
D. an earthquake
Answer:
an earthquake
When a person loses consciousness due to a head injury from a car crash, the ______ keeps the body functioning by regulating the flow of information between the brain and the rest of the body
Answer:
Brain stem
Explanation:
I hope this helps
Which of the following returns blood to the heart? Arteries
Veins
Aorta
Ventricles
Answer:
Veins
Explanation:
Blood moves through many tubes called arteries and veins, which together are called blood vessels. The blood vessels that carry blood away from the heart are called arteries. The ones that carry blood back to the heart are called veins.
