Desertification is the change of a normal land in desert. The expansion of the Sahara desert refers to the desertification of the Sahara.
What is Sahara desert?Sahara desert is in Morocco. It is famous for its variety of land features but is most famous because of sand dune fields.
Desertification can leads to the reduction of the vegetation-covered area. The Sahara desert also is constantly expanding at a faster rate.
The cause of Sahara desertification includes both natural processes such as climate and human activities.
Thus the correct option is A.
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the diagram shows a human body system. Which of the following gives the main function of the system shown?
A. preventing and fighting diseases
B. carrying oxygen to cells and waste from cells
C. controlling the functions of the other body
D. breaking food into a usable form of energy for cells
(btw i don’t know if this is biology or chemistry)
Answer:
Explanation: D breaking food into a usable form of energy for cells
Which of the following is not an effector?
A. Skin B. Tongue C. Inner ear D. Diaphragm
Answer:
It should be C. inner ear
Explanation:
according to the web
A tautomeric shift may result in _____________ A. Transition mutations B. Induced mutations C. Any of the above D. Transversion mutations E. Frameshift mutations
Answer: C
Explanation:
Any of the above are possible
Which action describes an experimental investigation?
• A. Measuring the temperatures at which two rock samples melt
• B. Exploring the relationship of the material in a rock sample and its
hardness
•
C. Describing the types of materials that make up one rock sample
• D. Comparing the sizes of the crystals in two rock samples
BMIT
The action that describes an experimental investigation is measuring the temperatures at which two rock samples melt (option A).
What is an experimental investigation?Experimental investigations involve a process in which a test is designed and variables are actively manipulated, controlled, and measured in an effort to gather evidence to support or refute a causal relationship.
An experiment is conducted under controlled conditions to either;
demonstrate a known truth
examine the validity of a hypothesis
determine the efficacy of something previously untried
According to this question, measuring the temperatures at which two rock samples melt shows an action taken that exemplifies an experimental investigation.
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Our oceans absorb carbon dioxide from the air. Carbon doxide and ocean water form carbonic acid.
This causes the ocean's pH to become 4b
O lower
O higher
O it does not change
lower since it is becoming more acidic
The absorption of carbon dioxide from the air by the oceans causes the ocean's pH to become lower, meaning it becomes more acidic. Therefore option (A) is correct.
What affects ocean's pH?The ocean's pH can be affected by a variety of natural and human factors. One of the primary factors affecting the ocean's pH is the absorption of carbon dioxide from the atmosphere. As carbon dioxide dissolves in seawater, it reacts with water to form carbonic acid, which increases the concentration of hydrogen ions (H+) in the water and lowers the pH.
Other factors that can affect the ocean's pH include volcanic activity, which can release large amounts of carbon dioxide and other chemicals into the ocean, and nutrient runoff from land, which can lead to algal blooms that increase carbon dioxide and lower the pH. Human activities, such as burning fossil fuels and deforestation, can also release large amounts of carbon dioxide into the atmosphere, contributing to ocean acidification.
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What sequence of bases on RNA would match, or pair with, the following DNA sequence: GCA?
The sequence of bases on RNA that would match or pair with the following DNA sequence: GCA is CGU.
What is transcription?Transcription is the process by which mRNA sequence is produced from a DNA template in the nucleus of a cell.
During transcription process, the following applies:
Adenine (A) pairs with Uracil (U)Guanine (G) pairs with Cytosine (C)This means that the mRNA sequence that will result from a template of DNA with sequence: GCA is CGU.
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An organism that is eukaryotic and photosynthetic is.
Answer:
A protist
Explanation:
Trust me.
Select all that apply.
Which of the following are photosynthetic autotrophs?
plants
arthropods
all bacteria
protists
some bacteria
algae
Answer:
Plants. Some Bacteria. Algae. These 3 are the photosynthetic autotrophs..
Why the others don't fit:
Athropods are hetertrophs. Not all bacteria are autotrophs. Only some protists are autotrophs.
Which pollution type resulted in the most hypoxic waters? Support this with evidence from your data.
The pollution types that will result in most hypoxic waters is :
Fossil fuel burning and Agricultural runoff Hypoxic waterHypoxic waters are waters with low concentration of oxygen and this can be caused by the presence of excessive nutrients such as nitrogen. and also can be caused by layering. These are caused by saline gradients.
The excessive nutrients present in hypoxic water support the growth algal and eutrophication.
Hence we can conclude that The pollution types that will result in most hypoxic waters is : Fossil fuel burning and Agricultural runoff
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Options related to your question is missing hence I have provided a general answer to your question
Csf flows into which ventricle through the interventricular foramen and out through the cerebral aqueduct?.
CSF flows from the lateral ventricles, via the interventricular foramens, and into the third ventricle, cerebral trench, and the fourth ventricle.
How does CSF flow through the ventricles?CSF flows from the lateral ventricles to the third ventricle via the foramen of Monro, it flows across the cerebral trench of Sylvius to the fourth ventricle and onto the subarachnoid space through the cracks of Magendie and Luschka.
Thus,CSF flows from the lateral ventricles, through the interventricular foramens, and into the third ventricle, cerebral trench, and the fourth ventricle.
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How does a fossil gets into the fossil record?
Answer:
Explanation:
For an organism to be fossilized, the remains usually need to be covered by sediment soon after death. Sediment can include the sandy seafloor, lava, and even sticky tar. Over time, minerals in the sediment seep into the remains. The remains become fossilized
Answer:
i got u
Explanation:
For an organism to be fossilized, the remains usually need to be covered by sediment soon after death. Sediment can include the sandy seafloor, lava, and even sticky tar. Over time, minerals in the sediment seep into the remains. The remains become fossilized.
Which type of intermolecular attractive force operates only between polar molecules?.
Answer:
Dispersion Forces are present inbetween any molecules
Which of these anthropoid groups consists of primates who are mostly tree dwellers and whose forelimbs and hind limbs are about equal in length?.
Answer:
this was sooooo long ago i forgot how to do this
Explanation:
During apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?
Question 2 options:
Golgi apparatus
mitochondrion
ribosome
lysosome
Answer:
B) Mitochondrion
Explanation:
Mitochondria play a pivotal role in apoptosis. Apoptosis or programmed cell death can be initiated by both intracellular and extracellular signals. Mitochondria are responsible for mediating apoptosis initiated by intracellular signals. These are membrane-bound, rod-shaped organelles found in most eukaryotic organisms.
Which statement summarizes the law of superposition?
Answer:
The top layer of rock in a rock formation is the oldest.
Explanation:
it's A
In men, the primary source of androgens is the ____, while the ____ is/are where the remaining androgens are produced.
The primary source of androgens is the Testes.
The Adrenal gland is/are where the remaining androgens are produced.
The Adrenal Gland The Adrenal glands produces the androgens The Androgens are hormones that regulates the development and maintenance of male reproductive characteristics.The main source of the androgens is the testes.Learn more on Adrenal glands here :https://brainly.com/question/23487477
During meiosis, homologous chromosomes exchange genetic material. This exchange of genetic material-
Answer:
Crossing over
Explanation:
The process of exchanging genetic material in homologous pairs in Prophase 1 of mieosis is known as crossing over
Help fast please! I'm lost on this!
Answer:
It should be 1. 2. and 4.
Explanation:
Mangroves have leaves that expel salt and as young plants they do have bladders to help dilute the salt. They also have arial roots to keep them straight and above the water.
I hope this helps!
8
Select the correct answer.
Which statement best describes the classification of Kingdom Protista?
ОА.
"some of the above."
OB.
"none of the above"
O C.
"all of the plants and fungi."
OD.
"all of the above"
Kingdom Protista is the classification given to eukaryotic organisms composed of microorganisms that cannot be registered within the fungi, plant and animal kingdoms.
What is Kingdom Protista?Eukaryotic-type organisms that, due to their characteristics, are not part of the kingdoms of fungi, plants and animals, make up the kingdom protista.
This groups a very diverse set of generally unicellular or simple multicellular organisms that do not form tissues, both autotrophic and heterotrophic.
Therefore, we can conclude that Kingdom Protista is the classification given to eukaryotic organisms composed of microorganisms that cannot be registered within the fungi, plant and animal kingdoms.
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You go for a run on Mount Elden. As you work to summit the peak, you notice your respiratory rate has increased drastically to supply your body with oxygen, and similarly, you know that your bronchioles have dilated. What caused this effect
Answer:
The reduction in oxygen as you advance upwards
The elements neon and argon are not reactive. Which hypothesis BEST explains this?
They are not stable atoms.
They are not readily available on Earth.
They tend to give up all of their valence electons easily.
They have the maximum possible number of electrons in their outermost shell.
Answer:
They have the maximum possible number of electrons in their outermost shell.
Explanation:
There are only a few elements that are less reactive than noble gases. The reason for this is that they are filled with electrons, which are referred to as valence electrons.
Essentially, the more electrons on the outermost shells, the less reactive.
Hope this helps! Let me know if you require further information...
- profparis
Child Artists' Tools Include Mixed Media, Maggots
1. How is Ms. O'Flaherty using maggots in a very unique way?
2. Where does she get these maggots?
3. What is Ms. O'Flaherty's profession? How does she use maggots in her
work?
4. What are some other positive attributes of maggots?
5. Would you be interested in trying this type of art? Why or why not?
Answer:
Mar 29, 2007 · Child Artists' Tools Include Mixed Media, Maggots Letting kids dip maggots into paint may sound merely disgusting — but there's an entomologist from U.C.-Davis who calls it …
Explanation:
By making "maggot art," Ms. O'Flaherty is utilizing maggots in a distinctive way.
What is Maggots art?A great approach to get kids interested in insects, especially fly larvae, is through maggot art. Although it is mostly geared towards kids between the ages of 6 and 14, parents and siblings of all ages find it entertaining as well! Prepupillary blow fly larvae are submerged in non-toxic solution as the main assumption.
Fly eggs are laid everywhere there is a protected area and a fresh food source again for new brood of maggots to feed on. Maggots hatch from these fly eggs. As a forensic entomologist, Ms. O'Flaherty frequently employs maggots to, among other things, ascertain the time of death through investigation and examination. Three main positive benefits of maggots on wounds include debridement, disinfection, and improvement of wound healing.
Thus, by making "maggot art," Ms. O'Flaherty is utilizing maggots in a distinctive way.
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What are two examples of nitrogenous wastes that are excreted by the kidneys?.
Answer:
ammonia,urea and uric acid
If the order of base pairs in a DNA molecule is changed, what might occur?
Answer:
When you change the order of the base pairs in an organism, that is called a mutation. There are three types of mutations: a deletion, an addition, and a substitution. In a deletion, one of the three bases in a codon is pulled out, or deleted.
Explanation:
what happened around 2.5 billion years ago that lead to a tremendous increase in the amount of oxygen in earths atmosphere?
Answer:
The Great Oxidation Event.
Explanation:
i hope this helps
Is it true that The median is the middle number in a data set when the data are arranged in
numerical
Answer:
No
Explanation:
u must list the numbers from least to the greatest and than find the middle number so that will be the median.
Spores are produced in a pine cone-like structure by club mosses.
True or False?
Answer:
The answer is true If that is not the answer I am sorry
Explanation:
[tex]\bold{Heya!}[/tex]
→ Answer :-True.
Explanation :-Mosses have only one chloroplast per cell.
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[tex]\underline{Answer :}[/tex]
Jaceysan ~
The secretion of adh is directly stimulated by _______.
The secretion of adh is directly stimulated by Osmoreceptors.
What stamulated the secretion of ADH?Osmoreceptors are the specialized neurons of hypothalamus that is resposible for monitoring changes in intercellular osmolality. If the concentration of electrolytes increases then ADH secretion is affected.
So we can conclude that the secretion of adh is directly stimulated by Osmoreceptors.
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What is the loose connective tissue surrounding an individual nerve fiber called?.
Answer: The endoneurium.
Explanation: Each bundle of nerve fibers is called a fasciculus and the fasciculus is surrounded by a layer of connective tissue named the perineurium. Within the fasciculus, each individual nerve fiber, with its myelin and neurilemma, is surrounded by an important connective tissue named the endoneurium.
I hope this is helpful!What material is too important to ever leave the nucleus? A. DNA B. Protein. C. Ribosomes D. Chromosomes
A. DNA is too important to ever leave the nucleus.
DNA material is too important to ever leave the nucleus. Hence the correct option is A.
DNA (Deoxyribonucleic Acid) is a crucial molecule found within the nucleus of cells. It carries genetic information and instructions necessary for the growth, development, functioning, and reproduction of living organisms. The information encoded in DNA determines an organism's traits, characteristics, and overall biological processes.
DNA's essential role in inheritance and cellular activities makes it too important to ever leave the nucleus. While other cellular components like proteins, ribosomes, and chromosomes are important, DNA is the primary genetic material that must remain securely stored within the nucleus.
Hence the correct option is A.
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