When soil first forms over bare rock, what is it made of?
Answer:
Explanation:
Weathering and erosion produce ever smaller rock particles which,
when mixed with dust and decayed organic matter over time ,
result in different types of soil .
Soil is formed by the process of weathering. The soil is the uppermost layer of the surface of Earth. The first formed soil contains pieces of rocks and other particles.
What is Soil?Soil is the uppermost thin layer of material covering the earth's surface. It is formed from the weathering of large rocks. It is made up of mineral particles, organic materials, air, water and living organisms like bacteria.
The lichens are the pioneer species which invade the bare rocks and convert them into soil. They secrete acids which dissolve the rocks. This helps in their weathering and formation of soil. Mosses grow on the rocks along with the lichens to form a mat over the substratum.
Under the action of factors like heat, cold, rain, wind, and other atmospheric factors, the rock breaks down physically into the parent material of the soil.
Learn more about Soil here:
https://brainly.com/question/224605
#SPJ2
A moss begins to grow on a rock in an area that was previously uninhabited by life. This is an example of a __________ Choices: A. Pioneer species B. Climax community C. Disturbance D. Secondary succession ANSWER QUICK!!!
Answer:
The moss would be a pioneer species.
Explanation:
What differences exist between the Zone of Maturation and Zone of Elongation?
Answer: Root growth begins with seed germination. ... The zone of elongation is where the newly formed cells increase in length, thereby lengthening the root. Beginning at the first root hair is the zone of cell maturation where the root cells begin to differentiate into special cell types.
Explanation:
Help me with this plz ASAP
Answer:
I think letter D
Explanation:
Sana maka tulong
Answer:
D) Paramecium
Explanation:
sorry if my answer is wrong
Most of the Earth’s freshwater is found in __________.
A)
oceans
B)
lakes
C)
groundwater
D)
icecaps and glaciers
E)
swamps
Answer:
D) icecaps and glaciers
Explanation:
Edge
The answer is D. Icecaps and Glaciers.
The reason is because iceburgs/glaciers contain huge chunks of ice. Glaciers have around 0.1 square kilometers, or 25 acers.Around 101171.411 sq meters, of ice. Iceburgs are around 5 meters, or 16 feet (across) Again,of ice.
We know that to make ice, you freeze water, by putting it in a cold enviorment, or simply putting a glass of water in you freezer.
Hope this helps!
~Learning with Natalia~
WORD BANK: Carbon Dioxide, Glucose, Sunlight(Energy), Oxygen, Water, ATP(Energy)
Answer:
1. carbon dioxide
2.atp
3. oxygen
4. glucose
Explanation:
What solution can be used to detect blood that has been cleaned or cannot be seen?
Answer:
Fluorescein is a presumptive blood test for latent bloodstain detection. It has been used in forensic applications to reveal trace amounts of blood. Traces of latent blood can be detected even after repeated cleansing of the crime scene.
Explanation:
- Eijiro <3
help. no links or spam.
Answer:
D: Genetic material composed of DNA
Hope this helps! :)
10. Using the DNA Code below, create mRNA and the tRNA codes:
ACG ACG G C ATTAC AG GTA ACG CC
Answer:
mRNA - UGC UGC C G UAAUG UC CAU UGC GG
Explanation:
tRNA - ACG ACG G C AUUAC AG GUA ACG CC
During normal cell division, a parent cell having four chromosomes in G1 will produce two daughter cells, each containing ______.
Which physical property of a medium is defined by how close the particles of the substance are to each other?
Answer:
The question is not complete as the options are not given, here are the options gotten from another website.
A) Crest.
B. trough.
C) density.
D) amplitude
The correct option is C.
Density.
Explanation:
This is because density of a particle is measured or define as the mass or weight of a particle divided by it's volume. This is a physical property which is determined through it's mass and volume, it illustrate how particles are closer or tend to move bearer to each other through it's mass and volume.
What struggles do aquatic organisms have that terrestrial ones do not?
If you are not going to actually answer the question don't even bother.
Answer:
Aquatic animals can be found in water habitats, which can be either fresh or marine. Terrestrial animals can be found exclusively in the land. Aquatic animals respire through gills or their skin. ... The main difference between aquatic and terrestrial animals is their habitat and modes of living
Explanation:
Answer:
being destroyed easily
Explanation:
aquatic organisms are faced with lots of challenges,,,eg.....oilspillage on water bodies,this prevents entry of oxgen into water hence suffocation leading to death,also growth of weeds such as water hyacinth which suck nutrientss and oxygen from water,,,also aquatic krganisms are hunted by lots of predators compared to that of terrestrial
This is the ultimate source of our energy
Answer:
yes thats right, its the sun
Which pair represents an example of analogous structures in animals?
A. coccyx
B. pelvis
C. radius
D. cerebellum
help please!!!!! i need help!!
how are macromolecules used in the body? (2-3 sentences)
Question 4
Nearly 30 percent of the native flora in the United States is considered to be of conservation concern. Without human intervention, many of these plants
may be gone within our lifetime. For the native birds and mammals of the United States to survive, plant life must be conserved. What product of
photosynthesis do plants provide to all animals?
Your answer:
Oxygen
Carbon Dioxide
Light
Hydrogen
Clear answer
Question 5
Answer:
Oxygen
Explanation:
i need help on fiding a plant that is really interesting and different and show me the picture please and it has to be that you took the picture please
Here is my favorite. Clathrus Archeri. It's a fungus that is found in gardens and stuff and it is super cool looking. You can also search for it as Octopus Stinkhorn fungus.
When the heart is in fibrillation, A) there is no contraction of the myocardium. B) effective pumping of the ventricles ceases because the myocardial cells fail to work as a team, and the brain cannot get adequate oxygen. C) the myocardial cells may become damaged from contracting too fast. D) the myocardial cells deplete their oxygen supply because they are contracting too fast, and the lactic acid produced damages the myocardial cells. E) the myocardial cells are contracting together as they should; fibrillation indicates a normal sinus rhythm of 75 beats per minute.
Answer:
The correct answer is - B) effective pumping of the ventricles ceases because the myocardial cells fail to work as a team, and the brain cannot get adequate oxygen.
Explanation:
When the heart is in an irregular and rapid heart rate due to chaotic electrical signals in the atrial chambers of the heart which leads to a very fast heart rhythm that shows 100 to 175 heart rate. That leads to failure of the myocardial cells that stop the pumping of the ventricles effectively and therefore blood would not reach the brain and the brain would not get an adequate amount of oxygen. This will result in organisms experiencing faint, blackout or stroke-like complications.
NEED AN ANSWER ASAP
Which of the following would have the GREATEST effect on reducing the effects of
climate change??
Carpooling to work
Recycling
Biking to work
Switching to renewable energy sources such as wind and solar
Answer:
Switching to renewable energy sources such as wind and solarExplanation:if you are not useing renewable then your useing the oppsite wich is bad
Explain how concentration gradients across membranes are maintained
Answer:
The idea of concentrations and gradients within them is important when understanding the movement of substances across cell membranes. The more particles there are in a certain volume, the more concentrated those particles are. A solution with a low solute concentration has a high water concentration, and a high water potential.
Please I need help on this
Answer:
C: Converting radiant energy into chemical energy.
Explanation:
Only plants (producers) in a typical ecostystem can convert radiant energy into chemical energy.
Answer:
Converting Radiant energy into Chemical energy.
Explanation:
There are two main purposes for plants. 1. Providing oxygen 2. serving as producers. As we know, plants take in the sunlight from the sun and make glucose with it. This glucose in its form is chemical energy that benefits both the plants, or the consumers that eat them, or some parts of the plant. It does not talk about oxygen or atmosphere except for nitrogen, which they actually get from the ground. Therefore, Converting Radiant energy into Chemical energy would be the right answer.
1. 1. What happens during cell differentiation?
Answer:
Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. ... Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover.
Which ACTN3 genotype (RR, RX, or XX) would provide these Olympic marathon athletes with an advantage, and why?
Answer:
XX
Explanation:
ACTN3 genotype i.e. XX provides advantage to the Olympic marathon athletes because it strengthens the fiber of the muscles. This gene is also called the gene of speed. This ACTN3 gene has a great influence on the type of fiber that makes body muscles, and they are also linked to strength and endurance so we can conclude that this gene provides benefits to the Olympic marathon athletes by giving strength to the fiber of muscles.
ACTN3 genotype is the gene encoding for the actinin of the skeletal muscle fibres. XX of the ACTN3 genotype will be advantageous for marathon athletes.
What is ACTN3 genotype and XX?ACTN3 genotype is the gene encoding for the protein of the skeletal muscles fibres that are associated with muscular performance. This protein is expressed in the myofibers with a high twitching ability and result in a high-velocity force.
The XX genotype provides strength to the muscles and is the gene coding for the proteins that give speed. They are also responsible for endurance and are beneficial for athletes.
Therefore, XX of the ACTN3 genotype is advantageous for athletes.
Learn more about ACTN3 genotype here:
https://brainly.com/question/25199454
Which adaptation to a dry climate most helps the elephant tree continue to grow by reducing the loss of moisture?
A
a deep root system
B
loss of leaves during a drought
C
photosynthesis in the bark
D
closing of stomata in daylight
a - a deep root system
The closing of stomata in daylight is an adaptation to a dry climate most helps the elephant tree continue to grow by reducing the loss of moisture (Option D).
What is an adaptation?An adaptation is a phenotypic feature that allows an organism to survive in particular environmental conditions.
Stomata are structures in plants that allow the interchange of gases required during photosynthesis.The closing of stomata represents an adaptation to arid conditions because it avoids water loss.In conclusion, the closing of stomata in daylight is an adaptation to a dry climate most helps the elephant tree continue to grow by reducing the loss of moisture (Option D).
Learn more in:
https://brainly.com/question/2279079
Memory effector cells are also produced in the case that the same pathogen enters the organism again.
true or false
Answer:
True
Explanation:
The first contact that an organism has with a particular antigen will result in the production of effector T and B cells which are activated cells that defend against the pathogen. ... Memory T and memory B cells are also produced in the case that the same pathogen enters the organism again.
Why would a Nonsense mutation be less damaging if it occurred at the end of the gene rather than the
beginning?
Why do you think there are so many bones in the cranium? Why do you think we are born with separate cranial bones that later fuse together as we grow and develop?
Hi, rachellelunaa!!
I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.
I really hope this answers your question!!
The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.
What are the cranial bones?Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).
The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.
Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.
Therefore, preventing damage to skull and brain, we are born with separate cranial bones.
Learn more about cranial bones here:
https://brainly.com/question/5482443
#SPJ2
HOW DO I FIND THE PERCeNT
N:no ears
n:has ears
-what percent of the offspring will have ears????
Answer:
50% will have ears
Explanation:
To have ears you must have the trait nn since the ears trait is recessive, 2 of the four possible offspring are like this, so 50%
PLEASE BE SPECIFIC THANK YOU <3
Due to its location, Hawaii does not have very many land birds. The Hawaiian honeycreepers are a favorite for many ornithologists. There are over 50 species of honeycreepers that can all be traced back to one ancestor. The level of diversity in an ecosystem can be determined by the frequency of speciation and extinction.
Describe speciation and identify two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to speciation.
If the Hawaiian honeycreepers became extinct, explain how the newly available niches could lead to speciation.
Answer:
In speciation, organisms evolved with the passage of time.
Explanation:
Speciation is the evolutionary process in which populations of species evolve with the passage of time to become different species from the original one. Temporal isolation and gametic isolation are two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to occur speciation. The newly available niches could lead to speciation of that organisms that tolerate the Hawaiian climatic conditions when the extinction of Hawaiian honeycreepers occurs. The new organisms used the available resources such as food and space etc and increase its population.