Which of the following would provide the best assessment of the parent material of the soil
- O horizon
- A horizon
- B horizon
- D horizon
Answer:
The correct answer is B
Explanation:
It may be made of the same mineral material that the more superficial layers were formed from, or it may be made of a distinct complex of minerals, rock forms the D horizon, hence option D is correct.
What is the parent material of the soil?An unweathered soil layer that can occasionally be found below the B-horizon or the C-horizon, if they are present.
The soil you see above this rock is made of rock that has weathered (unless the soil has been deposited from elsewhere eg floodplains contain soil that has been carried downstream in water and then deposited as the flood recedes).
Therefore, bedrock's D Horizon - Rock that has been solidified makes up this stratum (tight, unbroken, large formations of rock). Roots do not penetrate thus far down, and there is very little organic matter.
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The frog population of the mangrove wetland declined from Year 0 to Year 4 and increased in Year 6. Which statement most likely explains the decline in the frog population?
Answer:
I can’t see the answer choices. I would like to guess that it would either be natural selection, or something to do with limited natural recourses.
Brainliest? I’m trying to rank up. Thank you sooo much.
_______________is energy that uniformly fills the entire universe.
A) Cosmic force field
B) Cosmic background radiation
C) X-ray radiation
D) Light energy
Which three organs help a plant carry out photosynthesis?
Answer: B, C, and D.
Explanation: Leaves absorb the light coming from the sun. Leaves also have something included in them called chlorophyll. Plants use this chlorophyll and light for photosynthesis. The stem helps to transport the products of photosynthesis. The roots absorb some of the most important nutrients to a plant.
Three organs that help a plant carry out photosynthesis are the leaves, by trap sunlight and take in carbon dioxide, and the stem, which transports nutrients and water to plant cells.
What is photosynthesis?Photosynthesis is a chemical process by organisms that contain chlorophyll to make their own food. The process includes light, carbon dioxide, water, and chlorophyll.
Thus, the correct options are B and C.
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hth
Water is a polar molecule. Which answer describes why it is polar?
The molecule has an overall charge
The molecule does not have an overall charge
It contains two hydrogen atoms for each oxygen atom
The oxygen pulls the electrons more than the hydrogens
The oxygen pulls the electrons more than the hydrogens
amino acid of CAAGGATAT
If you place a balloon over the neck of an empty 2 liter bottle how can you make it inflate?
shake the bottle
cool the bottle
heat the bottle
Answer:
heat the bottle
Explanation:
Explanation:
the last one heat it up i think
Shield volcanoes are ___ stratovolcanoes
1. Equally explosive as
2. more explosive than
3.less explosive than
Answer:
Less explosive than
Explanation:
Starch is an example of?
A) lipid
B) sugar
C) carbohydrate
D) proteins
Answer:
Option A
Explanation:
Starch is a example of a "lipid" or option A. Starch are also a example of a natural polymers and natural polymers are organic substances that are insoluble in water but soluble in other organic mixtures and a example of a natural polymer is starch.
Hope this helps.
Which biome in the given table has the greatest biodiversity?
A) Temperate forest
B) Desert
C) Savannah
D) Tropical rainforest
Influenza is spread by contaminated water and food supplies.
[tex]\huge\color{purple}{\bold{\underline {Answer Choices:}}}[/tex]
True
False
Describe three environmental considitons that increase the rate of transpiration in plants, explaining how they operate:
Explanation:
Plants transpire more rapidly in the light than in the dark. This is largely because light stimulates the opening of the stomata (mechanism). Light also speeds up transpiration by warming the leaf. Plants transpire more rapidly at higher temperatures because water evaporates more rapidly as the temperature rises.
Using what you learned this week about DNA and the cell cycle, explain what can go wrong to cause cancer in an organism. Be detailed in your answer.
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance.
The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke. The cause of cancer may be environmental agents, viral or genetic factors.
Explanation:
Plzzzzzzzzzzzzz give me brainiest
What is missing from the temperature and volume
graph shown at right?
Answer:
a graph title, “Temperature vs. Volume”
a label for the vertical axis, “Volume (cm³)”
units for the horizontal axis
Explanation:
edge 2020
4. Bacteria can share genetic information with each other. How does this make it more difficult to design medications that attack bacterial colonies? (4 points)
Explanation:
Genetic exchanges among bacteria occur by several mechanisms. In transformation, the recipient bacterium takes up extracellular donor DNA. In transduction, donor DNA packaged in a bacteriophage infects the recipient bacterium. In conjugation, the donor bacterium transfers DNA to the recipient by mating.
Genetic information in bacteria and many viruses is encoded in DNA, but some viruses use RNA. Replication of the genome is essential for inheritance of genetically determined traits. Gene expression usually involves transcription of DNA into messenger RNA and translation of mRNA into protein.
Answer:
The bacteria shares information with the recipient, making it harder to differentiate between the bacteria, and the host.
Explanation:
It mates with the recipient's cells and transfers genetic information. Since bacteria is living, it can share this to the host, making it less recognizable. This would make it more difficult to target only the bacteria.
30 pointss why shouldn't we be scared of a continental drift in the plate boundary?
Answer:
because it doesnt effect us?? i think im really really sorry if it isnt correct :((
Explanation:
What role do the lungs play in the digestive system
Answer:
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases
Explanation:
Answer:
Lungs are not part of the digestive system.
Explanation:
Lungs are part of the respiratory system. The respiratory helps you breathe, bringing oxygen to your muscles.
The mitotic phase of the cell cycle is the combination of mitosis and what other process?
Answer:
the cell cycle
Explanation:
Image of the cell cycle. Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
Answer:
cytokinesis :)
Explanation:
Which best describes the law of independent assortment?
A. Traits can only be controlled by a single gene.
B. The traits of the F2 generation are random.
C. The traits of an offspring are independent from the parents.
D. When sex cells form, alleles of a trait separate independently.
Answer:
D. When sex cells form, alleles of a trait separate independently.
Explanation:
i got it right on the test
According to the law of independent assortment, during the formation of gametes, the separation of traits occurs independently. So option D is correct.
Segregation is the principle that each individual has two alleles, and only one of those alleles is inherited by the progeny. Independent assortment is the principle that the genetic makeup of one pair is independent of the genetic makeup of another pair.
Each gene comes in different versions, called alleles. The dominant allele hides the recessive allele, which determines the appearance of the organism. When an organism creates gametes, only one gene copy is selected at a time. This is called the law of segregation.
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Help Please!!! Points will be rewarded!!!!!!
Cell membranes are very important for all cells, because their selectively permeable structure allows materials to enter and exit the cell through passive and active transport.
This is possible because cell membranes have a ______ which allows both surfaces of the membrane to interact with water and other molecules.
A. Carbohydrate wall
B. Protein trilayer
C. Phospholipid bilayer
Answer:
phospholipid layer....
Answer:
Phospholipid bilayer
Explanation:
I studyed this a long time ago
Which organ in the integumentary system keeps germs from entering your body?
Answer: The main organ of the integumentary system is the skin.
Explanation: The skin regulates body temperature, keeps germs from entering your body, and produces vitamin D to help absorb calcium.
which statement about atmospheric pressure near earths surface is true
How are plants classified?
A. According to their stem and how they reproduce
B. According to their height and root system
C. According to their structure and how they reproduce
D. According to their leaves and root system
Answer:
I think that's choice C
Explanation:
Answer:
D. I think, don't take my word for that
There are the choice c and d to Help please I have no time
Answer:
I think it's c (if y is chloroplasts)
Big Question:How is energy/matter transferred throughout an ecosystem? 5-7 sentences
Answer:
om when is this due oh and pls help me it ergent thnx
Explanation:
what kinds of cells can stem cells produce in the human body?
Answer:
what kinds of cells can stem cells produce in the human body?
Explanation:
Stem cells are special human cells that are able to develop into many different cell types. This can range from muscle cells to brain cells. In some cases, they can also fix damaged tissues.
An atom with either more electrons or fewer electrons than protons is a
Answer:
BEEP BEEP IAM A SHEEPI SAId BEEP BEEP IAM A SHEEPExplanation:
Answer:
[tex]\boxed{\text{\sf \Large ion}}[/tex]
Explanation:
An ion is an electrically charged atom or group of atoms formed by the loss or gain of electrons.
Help plz do in 15 min
Answer:
Be able to Write Well
Explanation:
While writing well is important, it's not a required oral skill
What are the differences between C4 plants and CAM plants?
Explanation:
1. The way they minimize water loss
2. C4 plants relocate the Co2 molecules to minimize photorespiration while CAM plants choose when to extract Co2 from the environment
This question I will never understand, someone please help
Answer:
The stroke volume value (X) in the table is 54 cm³.
Explanation:
Stroke volume (SV) is a value that depends on the amount of blood the heart pumps in one beat, that is, during left ventricular systole.
If the cardiac output (CO) is obtained from the stroke volume and the heart rate (HR), the stroke volume can be calculated with the known CO and HR data:
CO = SV X HR
Clearing the formula:
Stroke Volume = CO / HRStroke Volume = 2800 cm³.min ÷ 52 bpm Stroke Volume = 53.85 = 54 cm³.The stroke volume value when the CO is 2800 cm³.min and HR is 52 beats per minute corresponds to 54 cm³.