Answer: For example, an extra copy of chromosome 21 causes Down syndrome (trisomy 21). Chromosomal abnormalities can also cause miscarriage, disease, or problems in growth or development. The most common type of chromosomal abnormality is known as aneuploidy, an abnormal chromosome number due to an extra or missing chromosome. brainliest?
Explanation:
Where does ocean salt come from?
a. macrofungi
b. sporophere
c. roomology
d. mycology
Ocean salt primarily comes from the evaporation of seawater, leaving behind the dissolved minerals and salts. It is not derived from macrofungi, sporophere, roomology, or mycology.
Ocean water contains dissolved salts and minerals, which are primarily derived from various sources such as weathering of rocks on land, volcanic activity, and underwater vents.
When the sun's energy heats the surface of the ocean, it causes the water to evaporate. Evaporation is the process by which water molecules escape into the atmosphere as water vapor.As the water vapor rises, it leaves behind the dissolved salts and minerals, which become concentrated in the remaining seawater.Over time, with continued evaporation, the concentration of salts and minerals in the remaining water increases.Eventually, the remaining water becomes supersaturated with salts, leading to the formation of salt crystals. These crystals can take the form of various salt compounds, such as sodium chloride (common table salt) and others.These salt crystals may precipitate and settle at the bottom of the ocean or accumulate in saltwater bodies, such as salt flats or salt pans.Therefore, ocean salt is primarily a result of the evaporation of seawater, concentrating and leaving behind dissolved salts and minerals. It is not derived from macrofungi, sporophere, roomology, or mycology.
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What is the BEST description of the beginning of secondary succession?
(a)Soil is already present.
(b)It begins on rock formations.
(c)Plants are already present.
(d)Pioneer species appear.
Answer:
C,,, Plants are already present.
Explanation:
Answer:
Plants are already present.
Explanation:
Scientists think that dolphins and whales share a more recent common ancestor than sharks and whales. Which feature of these animals most likely led scientists to think this?
A. anatomical structures
B. feeding behaviors
C. habitat locations
D. ecosystem roles
Answer:
a. animatical structure's
Explanation:
Ernest was looking at the following diagram of a cell. Which statement best explains how he should classify the cell?
A) He should classify the cell as a plant cell because it has a cell membrane.
B) He should classify the cell as an animal cell because it has a flagellum.
C) He should classify the cell as a plant cell because it has cytoplasm.
D) He should not classify the cell as either a plant cell or an animal cell.
Answer: Its d
Explanation:
URGENT!!!!!! PLZ HELP!!!!!!
An organism and its taxonomic key are shown below.
Taxonomic Key
Step Characteristic Organism
1 8 legs --- Go to step 2.
More than 8 legs --- Go to step 3.
2 One body region --- Go to step 4.
Two body regions --- Go to step 5.
3 One pair of legs on each body segment ---- Centipede
Two pairs of legs on each body segment ------ Millipede
4 Less than 1 millimeter long --- Mite
More than 1 millimeter long --- Tick
5 Claw-like pinchers --- Go to step 6.
No claw-like pinchers --- Spider
6 Long tail with a stinger --- Scorpion
No tail or stinger --- Pseudoscorpion
Which organism is shown in the image?
A. Millipede
B. Spider
C. Scorpion
D. Tick
Introduction : Scientists who study earth's layers are called geologists. Since they cannot see inside the earth, they use geological clues to help them. These clues are gathered from activities such as volcanoes and earthquakes. From these clues , geologists make inferences about what the inside of Earth actually looks like.
Question: Name the main layers of the Earth from the inside to the surface.
Answer:
Inner core, the outer core, the mantle, and the crust.
Each tissue and organ in the body has a function, and its metabolism is adapted to its function. For example, one tissue may synthesize fatty acids that are stored and oxidized by another tissue. Classify each phrase as describing the liver, adipose tissue, muscle tissue, the brain, or blood.
my brain can't process this lol
The brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
Adipose Tissue:
These tissue store fat and use fat as the energy source.
Muscle:
It generate ATP as energy to provide energy for contraction.
Blood :
It transport nutrients and other metabolic substances between tissue and organ.
It process the
Brain:
It is the organ that cannot use fatty acid or glycogen as energy source,
Liver:
Use fatty acid, glucose or ketone bodies as fuel to generate energy.
Therefore, the brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
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Which of the following does the frog represent? A. Primary producer B. Primary consumer C. Secondary consumer D. Decomposer
Answer:
Primary Consumer
Explanation:
Because it eat directly from the plants, which are primary producers
(3)
2.1
2.2
23
Provide labels for structures A, B and
State THREE functions of D
Fertilisation usually takes place at Y. Why wil
a blockage at X
2.3.1 Prevent fertilisation at Y
2.3.2 Not necessarily lead to infertity
(2)
3. Study the graph below which shows the menstrual
cycle and the influence of the different hormones on
it.
Answer:
i am pro i am pro i am pro i am pro
(I need help will make brainlyest) Which shows the correct order for the classification of species------------------
A) Domain, Kingdom, class, Order, Phylum, Family, Genus, and species-------------------------
B) Domain, Kingdom, Phylum, class, order, Family, Genus, and species--------------------------
C) Domain, Kingdom, Phylum, Class, Order, Family, Species, and Genus------------------------
D) Domain, Kingdom, Phylum, class, order, family, genus, species----------------------------------
Why were Domains added to the classification system after the time of Linnaeus?
Answer: With the development of powerful microscopes, scientists discovered many single-celled organisms that didn't fit into any of Linnaeus' kingdoms. As a result, a new taxon, called the domain, was added to the classification system.
Explanation:
A. homeotherm
would
QKeep its body temperature constant regardless of the environment.
B.Rely on the environment for its heat.
C.Allow its body temperature to fluctuate with the environment
Answer:
Keep its body temperature constant regardless of the environment. its A
what is noun ?what is verb?what is full from of cpu?
Answer:
Noun:a word (other than a pronoun) used to identify any of a class of people, places, or things ( common noun ), or to name a particular one of these ( proper noun ).
Verb: a word used to describe an action, state, or occurrence, and forming the main part of the predicate of a sentence, such as hear, become, happen.
Central processing unit (CPU), principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. ...
Answer:
NounNoun is a naming word .
Verbverb is an action word .
The full form of CPU is central processing unit .hope it is helpful to you
Which gland is enlarged in a young child and what is the main function of the hormone it secretes?
O A) Pineal – seasonality and salt resorption
B) Thyroid - metabolism
C) Thymus - immune system development
D) Pancreas - calcium storage
E) Adrenal – secondary sexual characteristics
Answer:
C
Explanation:
The thymus produces and secretes thymosin, a hormone necessary for T cell development and production. The thymus is special in that, unlike most organs, it is at its largest in children.
Answer:
The right answer is option C, thymus.
Thymus helps in immune system development. Its located behind sternum and helps in maturation of T lymphocytes.
Anyone Know?
i need fast
can someone please answer this question
Answer:
D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?
Explanation:
What is true for an energy resource with a low net energy?
Answer:
An energy resource with a low or negative net energy can have a hard time competing in the marketplace with other energy alternatives that have medium to high net energy yields unless it receives financial support from the government (taxpayers) or other outside sources.
Explanation:
- Eijiro <3
what kind of animals are the best suited to life in a tundra
Answer:
Muskox, Arctic Wolf and Brown bear
Explanation:
Answer:
Tundra biome is also called as "treeless mountain tract" and the animals best suited to this type of climate are Arctic fox, Muskoxen, snow owl and polar bear.
Which of these are present in both woody and herbaceous stems? (Select all that apply.)
A. xylem
B. rings
C. seedlings
D. phloem
Answer:
xylem & phloem are present in both woody and herbaceous stems
Explanation:
Vascular system is present in both, woody and herbaceous stems. Thus, option A, and D are correct.
What are vascular tissues?In vascular plants, A tissue which is complex in nature, formed by more than one type of cells are called as vascular tissues. Two main types of vascular tissues are:
XylemPhloemThe transportation of water from roots to stem and leaves of the plant is carried out by xylem. Xylem consist of tracheids and vessel elements, which have different characteristics, but both play significant role in transportation of water and nutrients.
The soluble organic compounds synthesized during photosynthesis in the plants are transported by another vascular tissue called as phloem, in process called translocation. It consists of sieve elements, parenchymal cells, fibers, and sclereids.
Therefore xylem and phloem are present in both, woody and herbaceous stems.
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Help please thank youu.
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
In the following sentence, luster probably means
“for example, diamonds are a clear, very hard crystal with a shiny luster, while talc has a very soft texture and is a whitish gray color.”
A. dullness
B. hardness
C. transparent
D. shining by reflecting light
Answer:
D.
Explanation:
Luster means a gentle sheen or soft glow, especially that of a partly reflective surface. The sentence says "a shiny luster," and diamonds are shiny and reflective, so it is most likely D.
hope this helps! :)
Pls mark brainliest!In terms of daily hassles, what age differences have been found?
A) Elderly individuals are much more strongly affected by daily hassles like
grocery shopping, doctor's appointments, and bad weather.
B) Young individual's daily hassles are more commonly related to money
problems, while older individual's daily hassles are more commonly due to
interpersonal conflict.
C) There are no significant age differences in either the frequency or cause of
daily hassles.
D) Older individuals are more likely to cope with daily hassles by becoming
angry, while younger individuals are more likely to respond to daily hassles by
withdrawing from others.
Answer:
Option B is the correct representation of differences in terms of daily hassles between the old and young people
Explanation:
As compared to old people, young people carry heavy burdens in terms of stress exposure. The daily activities such as house hold works, grocery shopping etc become a burden for young ones while the old age people are primarily affected by interpersonal conflicts, physical pain etc. Exposure of such daily hassles causes deterioration of health of both the young and old ones.
Hence, option B is correct
state two functions of cell sap
Explanation:
The liquid inside the large central vacuole of a plant cell that serves as storage of materials and provides mechanical support, especially in non-woody plants. It has also a vital role in plant cell osmosis. (2) The cytosol, which is the watery fluid component of the cytoplasm.
Mutation happens during which of the following processes?
D Protein synthesis
A DNA transcription
B DNA replication
CTranslation
Word Bank :
Condensation
Evaporation
Precipitation
Sublimation
Transportation
Using the works from the Word Bank, explain how the water cycle works. You must using complete sentences and using all of the words in the word bank. Please write you answer in 5 or more sentences using words used from the word bank.
Describe how the EMG signal (a voltage) arises from muscle activity
Answer: The EMG signal is a biomedical signal that measures electrical currents generated in muscles during its contraction representing neuromuscular activities. The nervous system always controls the muscle activity (contraction/relaxation). ... EMG signal acquires noise while traveling through different tissues. EMG signals are recorded by placing electrodes close to the muscle groups. When the muscle is activated, the length of the muscle decreases and the muscle, skin and electrodes move with respect to one another. At that time, the electrodes will show some movement artifacts
Explanation:
EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
What do you mean by EMG signals?EMG signals may be defined as a biomedical signal that estimates electrical currents provoked in muscles during their contraction illustrating neuromuscular activities.
When the muscle is stimulated for any mechanism, the length of the muscle declines, which leads to the muscle, skin, and electrodes moving with regard to one another.
The EMG signals always arise from the electrical activity of the muscle fibers which are stimulated during the time of contraction.
Therefore, EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
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If all of your cells have the same complete set of DNA why do different cells in different proteins
Why do we have different cells in our bodies if every cell has the same DNA?
The genome of a cell contains in its DNA sequence the information to make many thousands of different protein and RNA molecules. A cell typically expresses only a fraction of its genes, and the different types of cells in multicellular organisms arise because different sets of genes are expressed.
What are unicellular organisms
with
examples
what is the function of plasma membrane
HELP ME I NEED THIS DONE ASAP I DON'T HAVE TIME TO COMPLETE IT
50 points for whoever can do this. thanks! :)
(why is no one helping me??? Please!)
Answer:
The reason why no one is helping you is because you never asked a question
Explanation:
Did I get it right?
Answer:
the answer is nothing because u have no question for someone to answer and your point is nothing thats why no one is helping u
Explanation:
which of the following is part of the digestive system? Adrenal gland, Ovary, Striped muscle, or tounge.
Answer:
tongue
Explanation:
Oh boy, what is this. So striped muscle isn't guaranteed to be part of the digestive system, and the adrenal gland just doesn't sound like it would be part of the digestive system. The Ovary is a hard no, to the tongue is the only one left.
if this is wrong let me know
hope this helps:)