Answer:
Cell wall: plant cells have a cellulosic cell wall, which is absent in the case of animal cells. The plasma membrane serves as the outermost boundary for an animal cell
In a California kelp forest, the garibaldi, the purple sea urchins, and the rocks make up whic of the following? Select all that apply.
a population
part of a community
part of an ecosystem
Part of a community
Part of an Ecosystem
In a California kelp forest, the garibaldi, the purple sea urchins, and the rocks make up part of a community and part of an ecosystem. Therefore, option B and C are correct.
What is ecosystem ?All the organisms and the physical setting they interact with make up an ecosystem. The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue.
Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Healthy ecosystems maintain our soil, clean our air, control the climate, recycle nutrients, and give us food. They offer resources and raw materials for making medications and other things. They support our economies and are the cornerstone of all civilizations.
Thus, option B and C are correct.
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true or false : A tree that includes a homoplasy is more parsimonious than one that includes only homologous characters.
Answer:
True
Explanation:
Tell me if correct (it will be)
PSYCHOLOGY: please help!!!!!!!! why do parents dangle toys above infants in cribs and stuff their cribs with colorful stuffed animals?
Answer:
It tricks the child's mind to feel safe
Explanation:
Answer:safety is of the utmost importance
Explanation:You'll want to ensure that the piece is out of reach of your child, hung securely to the wall, and that if despite your best efforts it does fall, that it won't break, shatter or otherwise bring harm to your baby.Sep
Based on the recommended levels issued by the EPA, water in which region has been subject to the best stewardship?
Plants take in carbon dioxide from the atmosphere in a
process called:
The process of called photosynthesis.
Which of the following correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life?
It is easy to store safely and distribute globally.
It allows for the same efficiency as gasoline-run engines.
It can be used to power small and large electrical systems.
It can only be used without combining with other energy resources.
The statement that correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life is that
It is easy to store safely and distribute globally.
What is hydrogen fuel cell technology?Hydrogen fuel cell technology is a technology developed in order to produce electricity, water or heat by allowing hydrogen cell to react with oxygen in an electrochemical cell which is like a battery.
Therefore, The statement that correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life is that
It is easy to store safely and distribute globally.
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Is a beneficial mutation always
considered beneficial?
A. No, it depends on the organism's personal goals.
B. No, it depends on the organism's environment.
C. Yes, it will always increase the organism's chances of
survival.
D. Yes, it will always increase the organism's chances of
finding a mate.
Answer:
B
Explanation:
B is the correct answer because the environment effects how the body has to adapt.
A beneficial mutation is not always considered beneficial because: (B) It depends on the organism's environment.
While a beneficial mutation can provide advantages to an organism in certain environments or circumstances, its benefits may not be universal. The suitability of a mutation depends on the specific environmental conditions in which the organism finds itself. Organisms inhabit diverse environments with varying challenges and selective pressures.
A mutation is a change in the DNA sequence of an organism's genetic material. Mutations can occur naturally due to errors during DNA replication or as a result of external factors such as exposure to radiation, chemicals, or certain environmental conditions.
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what are the functions of the male reproductive system
Answer:
to produce sperm for fertilization
distinguish between male and female cones of pinus and cycas
Answer:
You can observe a difference between Cycas and Pinus in their cones too. The male cone of cycads is large and terminal, bearing numerous microsporophylls while the male cone of pines is small and clustered. Female Cone
Explanation:
What chemical bond connects
nitrogenous bases like adenine and
thymine?
A. metallic bond
B. hydrogen bond
C. nonpolar bond
D. ionic bond
The chemical bond that connects nitrogenous bases like adenine and thymine is hydrogen bond.
What holds nitrogenous bases in a DNA molecule?DNA is a double stranded molecule made up of monomers called nucleotides.
Each nucleotide subunit is composed of three major components:
Nitrogenous basesFive-carbon sugarPhosphate groupThe nitrogenous bases, which are four in number, are held together in the DNA molecule by hydrogen bonds. That is; Adenine and Thymine are held together by hydrogen bonds.
Therefore, the chemical bond that connects nitrogenous bases like adenine and thymine is hydrogen bond.
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Answer:
b
Explanation:
What are the two main forces that cause soil erosion?
A. Water and wind
B. Plate tectonics and earthquakes
C. Plate tectonics and water
D. Earthquakes and wind
Answer:
A. Water and Wind
Explanation:
Running water is the leading cause of soil erosion because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.
hope this helps!
The process of cell division results in-
A: two identical daughter cells
B: two different daughters cells
C: unregulated cell growth
D: sister chromatic
PLEASE HELP!
Which of the following is NOT an effect of habitat fragmentation?
a Organisms have decreased ability to move around.
b Organisms have fewer opportunities to hunt for food.
c Organisms have decreased food sources.
d Organisms have greater chances to find a mate.
Population density is a factor of which ecosystem factors?
a. number of organisms/density
b. time/area
c. number of organisms/area
d. time/density
Answer:
I think the answer is C number of organisms/ area
The kind of genes an organism possesses is dependent upon the?
Answer:
The kind of genes an organism possesses is determined by the order of the nucleotide bases in the organism's DNA.
Explanation:
:0
:)
PLEASE CAN SOMEONE HELP ME !!!
which characteristics describes both the domain in Bacteria and the domain Archaea?
A.Unicellular organisms only
B.Unicellular and Multicellular organisms
C.Prokaryotic and eukaryotic cells
D.Eukaryotic cells only
Answer:
D.Eukaryotic cells only
Explanation:
How could you take a protein with a known sequence of amino acids and use it to create an artificial gene?
It is possible to take a protein with a known sequence of amino acids and use it to create an artificial gene due to the genetic code.
What is the genetic code?The expression genetic code makes reference to certain triplets of nucleotides or codons that encode specific amino acids.
In consequence, it is possible to design a specific nucleotide sequence in order to synthesize a protein.
The genetic code shows how genetic information flows from DNA to RNA and then to protein.
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How are human populations NOT likely to be impacted by global warming?
A. Freguent intense storms
B. Rising power costs
C. Rising ses levels
D. Increased temperatures
Answer:
Rising power costs
n a strain of tomato plants, short plant height and small fruit size are traits that display autosomal recessive patterns of inheritance. To investigate whether the traits segregate independently, researchers cross a pure-breeding line of tall tomato plants that have large fruits with a pure-breeding line of short tomato plants that have small fruits. The researchers observe that all the plants in the F1 generation are tall and have large fruits. The researchers cross the F1 plants with one another to generate an F2 generation. The researchers record observations for the F2 generation and will use the data to perform a chi-square goodness-of-fit test for a model of independent assortment. The setup for the chi-square goodness-of-fit test is shown in Table 1.The researchers choose a significance level of p=0.05. Which of the following best completes the chi-square goodness-of-fit test?
For researchers who choose a significance level of p=0.05, the chi-square value, the critical value is mathematically given as
9.24, 7.82.What is chi-square goodness-of-fit test?Generally, The Chi-square goodness of fit test is simply defined as a hypothesis test that determines if a variable will originate from a certain distribution.
In conclusion, The calculated chi-square value is will be 9.24, given the significance level.
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Answer:
The calculated chi-square value is 9.24, and the critical value is 7.82. The null hypothesis of independent assortment can be rejected.
Explanation:
10. Use the data and what you have learned about evolution to explain how mutation is a random process, but
hatural selection is not random.
Answer:
Mutations are random, but natural selection is not random. Different mutations can cause the same phenotype. Evolution repeats itself in different environments.
Explanation:
Introduced by Charles Darwin, natural selection is the idea that a species adapts to its environment through changes in its genetics. Natural selection is not random, though the genetic changes (or mutations) that are filtered by natural selection do come about randomly.
explain:
In house elves, droopy ears is an X-linked recessive trait. Kreacher’s brother, mom and dad all have pointed ears, but Kreacher was born with droopy ears. Kreacher’s maternal grandfather also had droopy ears while his grandmother had normal pointed ears. Kreacher wonders how he ended up with droopy ears like his grandpa.
Indicate the genotypes for Kreacher, his mom, dad, brother, and grandfather. (2.5 marks)
Draw the pedigree for Kreacher’s family. Be sure to label generations. (4.5 marks)
No Links please or action will be taken
Answer:
Explanation:
generation 1
R R
r Rr Rr
r Rr Rr
generation 2
R r
R RR Rr
r Rr rr
What is the scientific evidence for the creation of humans by a deity?
Answer:
Here is the scientific proof that God exists. Look at the universe. Look at humans, animals, plants, and every living thing. How did these things become alive? Did they just exist out of nowhere? God created them. You simply can't argue that everything just existed. Everything has a creator. 0+0+0 cannot ever become 1. God is the only thing that exists without a creator, because God is the only creator who made everything. Look at the insane complexity of life. For example, look at humans. We are the most complex thing alive. We are made perfectly with intelligence that onbody on this earth can ever even come close to. Our little minds can only do so much. God is the one and only who can create life. Can we ever make something become alive? Obviously no. If the whole world would come together we wouldn't be able to make a single living fly..
How did the chestnut blight enter America’s forests?
From an imported Japanese tree
After a period of prolonged drought
From a series of EXCEPTionally rainy springs
With settlers as they moved west
Answer:
From an imported Japanese tree
wikipedia
What causes a heart attack?
A. When the arteries increase
B. When LDL metabolizes cholesterol
C. When the heart is starved of oxygen
D. When HDL returns cholesterol to the heart
Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis? The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system. The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. Therefore, option (B) is correct.
What is respiratory system?The respiratory system is the biological system that facilitates the exchange of gases between an organism and its environment. It is responsible for the intake of oxygen, which is used for cellular respiration and energy production, and the removal of carbon dioxide, which is a waste product of cellular metabolism. The respiratory system includes the lungs, airways, and other structures involved in breathing.
The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide, while the circulatory system transports oxygen-rich blood from the lungs to the muscles, where it is needed for energy production. The muscular system then uses the oxygen to produce energy and power movement. These systems work together to ensure that Lewis's body is able to maintain a state of balance, or homeostasis, during exercise.
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explain about speciation
Answer:
Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
Explanation:
Hope this helps!
Which of the following species characteristics would allow a population to recover
most easily from the effects of overfishing?
A. Short life cycle
B. Slow growth rate
C. Low reproductive rate
D.Reaching maturity slowly
Answer:
A
Explanation:
LADO Muji rAndi ko xora muji LADO chus
Which is not a famous art centre in South Africa.
a. Polly Street b. Rorkes Drift C. Community Arts Centre d. Long Street dot Previous page
What does the dominant gene do to the recessive gene
Answer:
B overshadows it physically
Peppered moths come in two color variations, as shown below.
Prior to the Industrial Revolution, the majority of the population in England consisted of the light colored variation. The dark colored moth became the dominant variation by the end of the 20th century and remained so for almost 100 years. Today, the light colored variation is dominant again.
What is the best explanation for this?
A. Populations with two variations have a better chance of survival than populations with more.
B. A single variation can be beneficial under some conditions and harmful under other conditions.
C. One variation will always be harmful, and the other will always be beneficial.
D. A single variation can be beneficial in all conditions or harmful in all conditions.
The answer, I do believe, should be option B. Here's my reasoning...
The question doesn't ask about a bunch of other species and how the moth variations relate to the survivability of many species, so I think that rules out option A. Option C is too black-and-white, because the explanation above simply states how a moth was able to survive better on different color variations. The last option, D, is also too black-and-white. So I believe that the answer is B, because sometimes, like prior to the Industrial Revolution, the one variation is better (as seen in the upswing of dominance in different variations).