Answer:
C. The cell membrane regulates what goes in and out of the cell.
Explanation:
Answer:
A. Una membrana contiene fosfolipidos
Explanation:
Summarize the reasons why systematists separated Domain Bacteria from Domain Archaea.
Answer:
Initially, Archaea were classified as part of Bacteria, but sequencing technologies enabled them to separate these phylogenetic groups.
Explanation:
Archaea and Bacteria are different domains that belong to a kingdom known as prokaryotes. Prokaryotes are unicellular organisms that lack membrane nucleus, and any class of internal membrane, thereby they neither have organelles. These domains (Archaea and Bacteria) are primarily classified according to the level of sequence homology, being archaea organisms closer to eukaryotes compared than bacteria. Moreover, it has also been proposed that Bacteria are ancestors of eukaryotic organelles.
Due to the certain differences in their morphology and habitats, the Archea are the separate domain from domain Bacteria of life in prokaryotes.
ArchaeaIt is considered as the different domain of life in prokaryotes. These are the most primitive type and are known as the ancient microorganisms found in extreme niches.
They also have morphological differences as well as biochemical than bacteria which are rarely to be seen in those harsh conditions on which archaea can thrive. Their reliance on ether lipids in their cell membranes. Bacteria have phospholipid membranes.
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how are animals like as heterotophs
Answer:
Animals are known as heterotrophs because they cannot create their own food (like plants) and must consume other forms of life to survive.
Explanation:
Which system prepares the body for the situation
described in the scenario?
the somatic nervous system
the parasympathetic nervous system
the central nervous system
the sympathetic nervous system
Answer:
D) The Sympathetic Nervous System
Explanation:
The brain and spinal cord make up the central nervous system. The peripheral nervous system is comprised of the somatic and autonomic nervous systems. The somatic nervous system transmits sensory and motor signals to and from the central nervous system. The autonomic nervous system controls the function of our organs and glands, and can be divided into the sympathetic and parasympathetic divisions. Sympathetic activation prepares us for fight or flight, while parasympathetic activation is associated with normal functioning under relaxed conditions.
Answer:
Its D the sympathetic nervous system
Explanation:
Heres the ssenario: Antonella is on vacation with some friends in Montana. One day, she is out hiking in the woods when she hears a sound in the distance. She turns around and sees a grizzly bear coming out of the bushes. She freezes and becomes fearful of what the bear will do.
Which describes a target cell? releases hormones into the blood produces a particular hormone recognizes a hormone’s chemical structure destroys hormones in the blood
Answer:
recognizes a hormone’s chemical structure
Explanation:
In living systems, chemical messengers called hormones are secreted into the body via the bloodstream or ducts by certain glands called endocrine glands e.g pancreas, hypothalamus etc. These hormones are meant to effect a physiological change in certain cells called TARGET CELLS.
In biology, a target cell is any receiving cell that has the ability to respond to signals and messengers like hormones. This responding ability of hormones is due to the possession of specific receptor sites for the specific hormones. The receptor on a particular target cell recognizes that specific hormone's chemical structure, hence, will only respond to it.
For example, an insulin hormone secreted by the pancreas will only be responded to by a target cell that recognizes the chemical structure of the insulin protein using its receptor molecule.
Which of the following serves as the framework of the ribosome? Group of answer choices tRNA rRNA mRNA DNA
What type of fat is found in meat and most animal products, and can increase your cholesterol levels when consumed?
OA.
Unsaturated fats
OB.
Saturated fats
C.
Trans-fats
D.
Triglycerides
Answer saturated fats :
Explanation:saturated fats raise both Hdl and ldl cholesterol levels
Answer:
Saturated fats
Explanation:
took test
Earth's tides are caused by the influence of celestial bodies. Which body
has the greatest influence on tides?
A.sun because it's larger than the moon
B.moon because it's closer than any other celestial body
C.Earth because that's where we live
D.Jupiter because it's larger than the sun
How do biological agents contribute to weathering??
According to an American Cancer Society's annual report published in December 2009, the U.S. cancer death rate continues to
decline, as it has since the 1990s. This may be attributed to all BUT ONE of these factors.
0)
A)
early screening
B)
fewer people smoke
C)
genetic engineering
D)
healthier diet and less obesity
Answer:
C
Explanation:
The reduced rate of cancer deaths in the United States may be attributed to all of the factors except genetic engineering. Early detection and a healthier lifestyle are the main contributors to the reduced incidence of cancer as well as the reduce death rate.
What is missing in the alpine tundra that is present in the Arctic and Antarctic tundra?
a.) animals
b.) permafrost
c.) trees
d.) cold temperatures
Answer:
Permafrost
Explanation:
Alpine tundra is distinguished from arctic tundra in that alpine tundra typically does not have permafrost, and alpine soils are generally better drained than arctic soils.
One type of reading is _______ what a sign means.
blank = interpreting?
_______is when the body produces antibodies in response to antigens.
a. passive immunity
b. vaccination
c. active immunity
d. immunity
Answer:
c
Explanation:
C
What causes the flu?
Answer:
What Causes the Flu? The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.
Answer:
The virus spreads when a person sneezes or coughs.
Explanation:
Match the nervous system disorders with their descriptions
[a degenerative disease that affects older people]
[affects voluntary muscles]
[a burst blood vessel in the brain]
[a stationary blood clot]
1. ALS
2. Cerebral thrombus
3. Cerebral hemorrhage
4. Alzheimer disease
Answer:
Alzheimer disease-a degenerative disease that affects older people.
Cerebral thrombus a stationary blood clot
Cerebral hemorrhagea burst blood vessel in the brain
ALS- affects voluntary muscles
Explanation:
All these neurological disorders are damaging to health and can lead to other complications. In most cases loss of motor control is the main complication( Alzheimer), other main lead to stroke(cerebral hemorrhage and cerebral thrombus).It may also results in loss of sensation to the muscles- Amyotrophic lateral Sclerosis ALS.
Answer:
Alzheimer disease-a degenerative disease that affects older people.
Cerebral thrombus a stationary blood clot
Cerebral hemorrhagea burst blood vessel in the brain
ALS- affects voluntary muscles
Explanation:
Why is the oxygen atom of one water molecule attracted to the hydrogen
atom of another water molecule?
A. Because hydrogen has a partially positive charge and oxygen has
a partially negative charge
B. Because hydrogen has a partially negative charge and oxygen has
a partially positive charge
C. Because hydrogen and oxygen atoms have partially positive
charges
D. Because hydrogen and oxygen atoms have partially negative
charges
Answer:
A
Explanation:
Because it is the right answer if you do some research.
The oxygen atom of one water molecule is attracted to the hydrogen atom of another water molecule because hydrogen has a partially positive charge and oxygen has a partially negative charge. Thus, the correct option is A.
What is the name of this bonding?The name of this bonding between the oxygen atom of one water molecule and the hydrogen atom of another water molecule is hydrogen bonding.
The slight positive charge on the hydrogen atom of one water molecule attracts the slight negative charge on the oxygen atom of another water molecule.
This small force of attraction between two different atoms of different molecules is presented by hydrogen bonding.
Therefore, the correct option for this question is A.
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Use the definition in the image to answer these questions:
How are subduction and uplift different from each other? *
O Uplift pushes material up, subduction moves material down under Earth's outer layer
O Uplift pushes material down under Earth's outer layer, subduction moves material up
O Both subduction and uplift move rock material up
O None of the above
What is the cause for both subduction and uplift? *
O weathering
O erosion
O plate motion
Answer:
1) uplift pushes material up, subduction moves material down under earths outer layer
2) plate motion
Explanation:
1) I mean, it says it in the definition.
2) it also says in the definition, “due to plate motion”
Answer:
1) uplift pushes material up, subduction moves material down under earths outer layer
2) plate motion
Explanation:
1) I mean, it says it in the definition.
2) it also says in the definition, “due to plate motion”
Explanation:
ITS NOT MY WORK I JUST NEEDED POINTS SO I CAN ASK MY QUESTION FOR MY TEST SORRY!!!
The stem of a plant _____.
transports water, minerals, and food
soaks up water and minerals from the soil
takes in oxygen from the air
all of the above
Answer:
The correct choice is All of the above
Explanation:
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports fluids between the roots and the shoots in the xylem and phloem, stores nutrients, and produces new living tissue.
Storm surge can raise waves as high as _____ above sea level.
A. 6 meters
B. 6 centimeters
C. 6 feet
D. 6 inches
1 Point
What system consists of cells that night and kill foreign substances that enter
the human body?
A. Immune system
B. Excretory system
C. Endocrine system
D. Circulatory system
SUBMIT
Answer:A
Explanation:
The table lists some organelles and functions. Only one pair is correctly matched.
Organelle
Lysosome
Vacuole
Mitochondrion
Ribosome
Functions of Organelles
Function
Stores water and waste materials
Breaks down sugars
Breaks down waste materials and debris
Produces proteins for the cell
Which organelle in the table is correctly matched with its function?
lysosome
vacuole
mitochondrion
ribosome
Answer:
Vacuole-Stores water and waste material.
This maintains turgidity in pants.It is large in size and occupies the center of palnt's cells.
Mitochondrion- Breaks down sugars.
This breaks down sugars during cellular respiration to produce energy as ATPs.
Lysosomes-Breaks down waste materials and debris.
This removes worn out cells and organelles.It is a vital organelle.
Ribosomes-Produces proteins for the cells.
This is the site of protein synthesis through translation of transcripted mRNA in the cells.
Explanation:
Answer:
D. ribosome , ribosomes produce the body's protein
Explanation:
Multiple Choice:
Which species is most likely to exhibit clumped dispersion?
A. dandelions with seeds dispersed by the wind
B. tigers that defend their territories from one another
C. a bird that nests in many different types of trees
D. a tree that grows only on the banks of streams
Answer:
The correct answer is D
Explanation: I took this test on Edmentum. Got it right.
each new strand of DNA that is is refered to as a _____
Answer:
DNA replication is the process by which DNA makes a copy of itself during cell division.
Explanation:
Hope that helps! Have a nice day!
Ice can be considered a mineral.
Answer:
A lot of people think that ice is not a mineral. In my opinion ice is a mineral just like Quartz is. Ice is a naturally occurring compound. Ice carry’s a defined chemical formula. It also has a crystal structure, this structure makes it a legitimate mineral. So yes ice can be considered a mineral!
Explanation:
Question 7: What might be some implications of Robert Hazen’s experiments
and research? Cite evidence from the text to support your answer.
Answer:
Robert Hazen’s studied enviromental and biological processes that might have been critical for life, and also for the formation of approximately two-thirds of Earth's mineral species (see Hazen et al., 2008; Gonzalez & Richards 2020) .
Explanation:
Hazen provided evidence about how first organic molecules were generated on the primitive earth millions of years ago. He observed that high-pressure hydrothermal vents may provide food for underwater ecosystems. It represents a piece of critical evidence on the origin of life.
You can read these articles that are certainly clarifying in the description of his experiments and discoveries:
1- Hazen, R. M., Papineau, D., Bleeker, W., Downs, R. T., Ferry, J. M., McCoy, T. J., ... & Yang, H. (2008). Mineral evolution. American Mineralogist, 93(11-12), 1693-1720.
2- Gonzalez, G., & Richards, J. W. (2020). The privileged planet: how our place in the cosmos is designed for discovery. Gateway Editions.
that it
Changing the DNA of an organism will change the
makes
A.Fats
B.Carbohydrates
C.Proteins
D. Water
I need help please ASAP
Answer: C. Proteins
Explanation:
A new species is introduced to an ecosystem. Over several years, the species biodiversity of the ecosystem decreases. Which statement best explains this observation?
Select one:
The species did not feed on herbivores in the ecosystem.
The species left the ecosystem.
The species competed with existing predators.
The species attracted new predators.
Answer:
I'm not exactly sure about this, but I would say D.
Explanation:
Which of these is the most practical method to prevent global water shortage? A. Stop planting trees and shrubs in gardens. B. Conserve, recycle, and reuse water in households. C. Stop using appliances like washing machines and dishwashers. D. Discourage setting up of power plants which need cooling water.
Answer:
B. Conserve, recycle, and reuse water in households
Explanation:
I think B will be the best way to prevent global shortage because...
A. If we stop planting trees and shrubs in gardens that will reduce water shortage just by a little and trees are very important for fresh air and are equally important as water so its not a nice way to prevent global water shortage.
C. It will be very hard for people who use washing machines and dishwashers to stop using them because they are not used to clean their clothes/dishes by themselves and would be a very hard task to stop using it.
D. Idk
Two next-door neighbours use very different strategies when it comes to landscaping their front yards. One neighbour plants a front lawn of lush green grass that requires regular watering and fertilizer application. The other neighbour uses
stone pathways that wind through a variety of drought-resistant wild flowers and shrubs that are native to the area.
Explain why the drought-resistant wild flowers and native shrubs contribute more to the sustainability of a yard than does the lush green grass.
Answer: When the city/county/state/region declares a drought and stops the use of water on lawns, the green stuff dies.The guy with the drought resistant set up will hardly notice any difference in the look of his yard.
Explanation:
It is observed In the case of grass lawns, that the lush green grasses have more requirements as compared to the area covered with wildflowers and shrubs.
What are their requirements?The requirements include one of the most essential elements water. Compared to the drought-resistant plants grown by the second neighbor, the grass lawns require a large amount of water for their growth. This in turn adds a burden in the form of water requirements.
How do they survive?Drought-resistant plants take nutrients in the form of nourishment and protection whereas the grass requires the use of fertilizers as well as chemical pesticides to provide resistance to the grass against the potent pests and due to the requirement of a large amount of water by the lawns, there are chances of these chemicals getting washed away and entering into a nearby water source, and they don't get enough of the nourishment.
The drought-resistant varieties and the native plants are more potent to survive the conditions already present there and thus are more sustainable.
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how do genes play a role in homeostasis?
genetics!!! plz look at the photos attached....i have no clue what to do and it’s due very soon!
Question:
In order for your mutant dragon population to become its own species, and needs to be separated from the original dragon population so they no longer will mate with each other. come up with an idea of how the mutant dragon population can separate itself from the original population. Link it to your environmental change.
Answer:
There are various tactics that can be used to separate the mutant dragon population, in order to create a new speices. One tactic is to lure the dragons to a location that provides them with a better food supply. Another tactic could be to temporarily relocate the whelps or fledglings, and leaving behind a trail for the Family to follow. The goal is separate the mutant dragon population from the other, and the propositions that I have provided above could possibly be the solution.
Note:
This is the best I could do with the limited information that was given. I advise that you only resort to this if truly needed. I don't have much experience or knowledge in this Topic. I just thought I might give it a try. I hope you get a better answer soon!
