How do the structures of the alveoli and capillaries support the function of gas exchange?
In humans, free earlobes (F) is a dominant trait to attached earlobes (f) . If parents with the genotypes FF have a child, what is the probability that the child will have earlobes different from its parents?
Answer:
0%
Explanation:
Mother: FF
Father: FF
From the Punnet Square, we can conclude that the only possible genotype from these parents is FF --> free earlobes.
This means that there is a 0% chance of having a child with attached earlobes.
Suppose a scientist develops a technique for genetically modifying a bacterium species. This scientist would not be able to use the exact same technique to genetically modify a plant species. Why is that the case?
Every species on Earth is somewhat genetically unique.
B.
All species on Earth have identical genomes.
C.
There are no genetic similarities between the species on Earth.
D.
Genetic engineering can be done only on unicellular organisms.
Answer:
Answer is a, every species on earth is somewhat genetically unique.
Explanation:
I took the test, the person above me is wrong.
help me decide this !
Answer:
D. it takes in oxygen and releases carbon dioxide
Answer:
Best option is D
Explanation:
your respiratory system is a network of organs and tissues that help you breathe. It cleans out your blood and moves oxygen through your blood it filters out carbon dioxide.
Which of the following agricultural practices decreases biodiversity?
A.Tiling soil
B.Monoculture
C.Synthetic fertilizers
D.Flood irrigation
Monoculture is an agricultural practice that often decreases biodiversity. Therefore, option (B) is correct.
What is monoculture?Monoculture is the practice of planting only one type of crop on a large scale, which can lead to a reduction in the diversity of plant and animal species in the area. When a single crop is planted over a large area, it can disrupt the natural ecological balance of the region, leading to a decline in the number and variety of species that can survive in the area.
In contrast, tiling soil, synthetic fertilizers, and flood irrigation do not necessarily decrease biodiversity on their own. However, the use of these practices may have negative impacts on the environment, such as soil degradation and contamination of water resources, which can indirectly affect biodiversity.
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In the spring, Florida plants respond to ________.
A. increased daylight hours and temperature
B. decreased daylight hours and temperature
C. increased daylight hours and decreased temperatures
D. decreased daylight hours and increased temperatures
Answer: Its A
Explanation: You're welcome
Increased daylight hours and temperature. Therefore, option (A) is correct.
Florida flora respond to spring lighting and temperature. Photosynthesis requires sunlight, which increases as days lengthen. Plants develop and metabolically activate due to prolonged sunshine exposure.
Additionally, spring temperatures boost plant growth. Enzymes, nutrient absorption, and cellular mechanisms increase photosynthesis and plant growth at warmer temperatures.
Florida plants start growing when daylight and temperature increase. It grows new roots, leaves, buds, and flowers. These reactions increase energy capture, nutrient absorption, and reproduction, maximising plant output and adding to Florida's ecosystems' vitality and diversity. Therefore, option (A) is correct.
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(04.02 LC)
Which statement is supported by the cell theory?
All animal cells are the same size.
All plant cells are the same shape.
Similar organisms all have the same number of cells.
Cells are the primary unit of structure in living organisms.
Cells are the primary unit of structure in living organisms.
=============================================================
Explanation:
According to cell theory, cells are the building blocks of any living organism. This pertains to unicellular organisms (aka creatures that are one cell only) or multicellular organisms. This is why choice D is the answer.
Choice A is false because animal cells range in size. The largest animal cell is the ostrich egg that is about 5.1 inches across. In contrast, a neuron in the human body is about 100 microns across.
Choice B is false because plant cells have different shapes depending on the role they play in the plant itself.
Choice C is false. The number of cells varies even within the same species of a plant or animal. This is because the number is randomly determined and changes all the time. Old cells die and new ones are created constantly.
Which organ system in human makes sperm cells
Answer:
The male reproduction system.
Which of the following best explains why most bacterial infections can be treated more easily than viral infections?
A.Vaccines are less effective at curing infections.
B.Antibiotics can destroy bacteria but not viruses.
C.The immune system does not respond to viruses.
D.Anti-viral medications don't work fast enough.
Answer: B- Antibiotics can destroy bacteria but not viruses.
Explanation: I got it rigth on the test :)))
What do homologous structures tell us about evolution?
Answer:
Multiple types of evidence support the theory of evolution: Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features).
Explanation:
Multiple types of evidence support the theory of evolution: Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features).
___ is a method of preventing erosion by alternating crops in rows
Answer:
This is a method of preventing erosion by alternating crops in rows
Explanation:
I think is that true for me hehe
5th grade! pls help
6. Explain what happens when you slip on a wet floor.
Answer:
You usually fall backwards or other ways sometimes and hurt yourself, depending on where you land because of gravity.
Explanation:
Genes are the parts of DNA that code for proteins.
How many genes are in a healthy human being?
A) about 27,000
B) about 80,000
C) about 2,000
D) about 20,000
Answer:
The answer to this question is D
Explanation:
Healthy humans have about 20,000 and 25,000 genes.
2. Which parts of this model would you change and why?
Answer: MODULE IS 3 AND 2+1 = 3
Explanation:
Create two Punnett squares for a fictional trait, “Star-bellied.” “S” represents a dominant star-bellied gene, and “s” represents the recessive trait. For the first Punnett square, the mother and father both have star bellies and the recessive gene; what is the chance their child will have a star-belly? For the second square, the mother has a star-belly and the recessive gene, and the father does not have a star-belly; what is the chance their child will have a star-belly?
The Punnett squares provide information about the genotype and phenotype of individuals produced by the crosses. Cross 1) 3/4 = 75%. Cross 2) 2/4 = 50%.
What is a punnett square?The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Available data:
S represents a dominant star-bellied genes represents the recessive trait.We will assume this is a diallelic gene expressing complete dominance, this is, the dominant allele S completely hides the expression of the recessive allele s.
1st cross: mother and father both have star bellies and the recessive gene
Parentals) Ss x Ss
Gametes) S s S s
Punnett square) S s
S SS Ss
s Ss ss
F1)
Genotype
1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant SS
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
3/4 =75% of the progeny is expected to have star bellies
1/4 = 25% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 3/4 or 75%.
2nd cross: motherhas star bellies and the recessive gene and the father does not have a star-belly
Parentals) Ss x ss
Gametes) S s s s
Punnett square) S s
s Ss ss
s Ss ss
F1)
Genotype
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
2/4 = 50% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
2/4 =50% of the progeny is expected to have star bellies
2/4 = 50% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 2/4 or 50%
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The ocean is a three-dimensional environment. Explain how this kind of living space impacts diverse forms of marine life.
Suggest 2 types of learned behaviors and two innate behaviors that you have observed in animals (cats, dogs, whales, humans)
A persistent change in behavior that develops through experience is called Learned behavior. They can be developed by trial and error methods.
What do you mean by Behaviors?Behaviors may be defined as the observable response of organisms to external or internal stimuli.
The two examples of learned behaviors include operant learning (rat pressing lever experiment) and classical conditioning (Food and bell experiment).
The two examples of innate behaviors include feeding their young ones by humans, and fighting against male stickleback fish.
Therefore, it is well described above.
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Which choice describes what may happen if a predator species disappears from an ecosystem?
uncontrolled growth of pest species
O growth in population of all other species
O prey species disappears as well
gradual return of predator species
why do ice cores taken from polar regions contain much older information about earth's climate than ice cores taken from mountaintops
Answer:
Ice cores provide a unique contribution to our view of past climate because the bubbles within the ice capture the gas concentration of our well-mixed atmosphere while the ice itself records other properties. Basically, the lack of melt from polar regions don’t corrupt the record of trapped gases or blur the record of other impurities.
Explanation:
I hope this helps :)
What type of plate boundary caused the feature shown in the photo ?
Answer:
Convergent boundary.
Explanation:
A convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the other (in a process known as subduction). The collision of tectonic plates can result in earthquakes, volcanoes, the formation of mountains, and other geological events.
Why do you think we thought no life could survive in the deep ocean?
Answer:
The intense pressures in the deep ocean make it an extremely difficult environment to explore
Explanation:
Most of the deep ocean is cold, usually lower than the temperature in your refrigerator. Deep-sea animals don't mind the cold at all, and many can only survive and grow in the cold. Food is scarce in much of the deep sea, in part because photosynthesis only takes place at the ocean's surface where there's sunlight.
Answer: people are scared of what they'll find if they search so no one ever looks they just know what they know and dont want to learn new things
Explanation:
Identify the type of energy described in each sentence
Answer:
1. is chemical energy
2. is gravitational energy
3. is mechanical energy
4. is radiant energy
Explanation:
Convert the following sentences into passive form 6. Ethiopia has denied the request.
Converting the sentence ( Ethiopia has denied the request ) into a passive form :
The request has been denied by the Ethiopia
Active vs Passive voiceActive voice asserts that the grammatical subject performs the action which is represented by the verb. while in a passive voice form the subject of the sentence is acted upon by the verb in the sentence. The sentence in the question is in active voice. The passive form of the sentence is The request has been denied by the Ethiopia.
Hence we can conclude that Converting the sentence into a passive form : The request has been denied by the Ethiopia.
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What are some ways in which materials affect how light is transmitted
Answer:
Materials can be classified according to the amount and type of light they transmit. Transparent (trans-PAIR-uhnt) materials allow most of the light that strikes them to pass through. It is possible to see objects through a transparent material. Air, water, and clear glass are trans- parent.
The french taxonomist who, in 1809, was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their ability was
The french taxonomist who, in 1809, was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their ability was Jean Lamarck
Organisms will not pass acquired physical traits to the next generation.
In his theory, Lamarck proposed how species adapted to the changed environment by passing down acquired physical traits to the next generation. But, after Charles Darwin published his theory of evolution, Lamarck's theory was rejected. Now, it is known that acquired physical traits could not be inherited and epigenetics is a good proof for that.
suggest one component of blood plasma that could enter the red blood cells and describe how it would cross the cell surface membrane
Once isolated, a pure colony is added to a broth for increased numbers of viable bacteria to test.
A pure bacterial colony is important for studying the characteristics of that bacterial species.
What is a pure bacterial colony?A pure bacterial colony is a bacterial colony which contains only bacteria of the same species growing together.
A pure colony can be obtained by growing bacteria in medium which is specific for a particular species of bacteria.
Once isolated, a pure colony is added to a broth for increased numbers of viable bacteria to test.
Therefore, a pure bacterial colony is important for studying the characteristics of that bacterial species.
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Which of these is a neurodevelopmental disorder?
A. mood disorder
B. panic disorder
C. agoraphobia
D. autism
Answer:
D. Autism
Explanation:
Autism is a neurological and developmental disorder that begins early in childhood and lasts throughout a person's life. It affects how a person acts and interacts with others, communicates, and learns.
Answer:
D.autism
Fact-
Neurodevelopmental disorders are a group of conditions in which the growth and development of the brain is affected. This can impact an individual's language, emotions, behavior, self-control, learning and memory.
Explanation:
HGD
What would be a beneficial adaptation for a plant in a dry climate?
positive hydrotropism
positive phototropism
positive thigmotropism
positive gravitropism
Answer:
positive hydrotropism
Explanation:
the plants roots will move towards water, giving it better odds of survival in this dry place
Answer:
Positive hydrotropism because it provides water I hope this helps!!!
What is the predominant religion in Mexico?
Answer:
Roman Catholic is the most popular religion in Mexico...
Explanation:
....with 82.7% of the population associated with it.