Answer:
I believe that is ribosomes
Explanation:
Explain the significance of oxygen to animals?
A.Animals use oxygen to help circulate blood in the body.
B.Animals use oxygen to digest food.
C.Animals use oxygen to convert food to energy through photosynthesis.
D.Animals use oxygen to convert food to energy through respiration.
please answer asap its for a test
Answer:
a
Explanation:
what is the expanded portion of a longitudinal wave
Answer:
well longitudinal waves are waves that move the medium parallel to the direction in which the waves travel
Explanation:
in waves, there is compression and rarefaction which is what makes up the distance of the wave. i hope this helps. if it doesn't, lmk and i'll fix it
Do you agree with Dr. Walker and his colleagues that the changes to Jordan Jones’s meal could not explain his improved performance? Why or why not?
Answer: I agree with Dr. Walker and his colleagues that the changes to Jordan Jones’s meal could not explain his improved performance.
Explanation: I agree with Dr. Walker and his colleagues that the changes to Jordan Jones’s meal could not explain his improved performance because, food can´t change anything except for your hungriness, and the more food you eat the more fat you get, and not slim.
why do you think are the reasons why only few seeds germinate
Answer:
The germination of a seed can eventually be affected by temperature, humidity and oxygen. Generally, the seeds remain viable longer at low temperatures, a humidity range of 3% to 20% and an environment with low partial pressure of oxygen. If some of these factors are not met, the seed can age or eventually germinate.
Explanation:
Seeds are the main reproductive organ of the vast majority of higher terrestrial and aquatic plants. They play a key role in the renewal, persistence and dispersal of plant populations, the regeneration of forests and ecological succession. In nature the seed is a staple food source for many animals. Seed germination often takes place on the surface of the soil, so the balance between the gain of soil moisture and its loss by transpiration to the atmosphere determines when the seed becomes saturated with moisture and begins to germinate.
The reasons why only few seeds germinate are as a result of some factors such as temperature, availability of water, depth of plant, presence of plant hormone (Gibberellin) in the seed. etc
Seed Germination is a process after seed dormancy where seeds sprout and develop into a new young plant. The reason why some seeds germinate and others do not are some of the following:
Temperature: For the germination of seed to occurs, seed needs to undergo a moderate amount of soil temperature. The cotyledon of the seedling gets destroyed when the seeds are being exposed to an extreme soil temperature. This is why most seed doesn't thrive in the deserts.
Availability of water: The soil in which seeds need to be planted must be moist and contain have a moderate amount of water holding capacity for the survival of the seed plant. The moderate amount of water holding capacity can be seen in humus soil.
Presence of plant hormone: The presence of Gibberellin in seeds helps the activation of the cotyledon to begin the germination process after the seed has absorbed water from the soil. In seeds where the enzymes are absent, such seeds do not germinate.
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2. A scientist who studies communities studies
a. Interactions between different populations in an ecosystem
b. Interactions between members of the same species in an ecosystem
c. The adaptations of an individual organism
d. Interactions between the living and nonliving factors in an environment
Answer:
b
Explanation:
If a female with blood type A (IAIA) and a male with blood type O (ii) have a child, would the child inherit blood type A or O? Use the Punnett square as a guide.
Answer:
They would inherit blood type A
Explanation:
Please mark brainiest
you have two bean burritos with the same ingredients. One burrito weighs 0.3 pounds, while the other weighs 0.5 pounds. After microwaving each of them for one minute, which burrito will be hotter? Explain your answer.
Answer:
the one that weighs less
Explanation:
the one that weighs less has less of the amount of ingredients in it which takes less long to cook and heats up faster
Answer:
0.3 pounds
Explanation:
I say that because since there is less weight on one of them, it doesn’t have to be cooked as long, or else it may get cooked TOO uh since it weighs less, while the other one may be cooked perfectly since there is more to cook.
Mitosis results in which of the following?
A. Two cells with different genes.
B. Two cells with identical genes.
C. Four cells with different genes.
D. Four cells with identical genes
Answer:
B - Two identical daughter cells
Explanation:
In mitosis, the sister chromatids of each chromosome seperate so each daughter cell takes one chromatid from each chromosome
A plant with the genotype ANL/anl, YGR/ygr, is bred with a plant with the genotype ANL/anl, ygr/ygr. About what percentage of the offspring plants will have both purple stems and yellow leaves? A. 50% B. 38% C. 25% D. 13%
Answer:
38%
Explanation:
Sorry im so late
Which cell structure do nutrients pass through to enter a cell?
(A) cell membrane (B) cytoplasm (C) chloroplast (D) nucleus
What is a defining feature of mammals that is not present in most other
OA.
OB.
C
D
Mammals maintain a constant body temperature.
Mammals can produce milk for their offspring.
Mammals have a nervous system with a spinal cord.
Mammals reproduce through internal fertilization.
O
Answer:
Mammals can produce milk for their offspring.Explanation:
Mammary glands are evolved from the modification of sweat glands. Mammary glands produce milk for their offspring. presence of hair on the body is also a defining feature of mammals. These defining features are not present in most of the vertebrates.
Hope this helps
Using the information below, what will happen to the cell as it reaches equilibrium?
Answer:
Even when equilibrium is reached, particles of a solution will continue to move across the membrane in both directions. However, because almost equal numbers of particles move in each direction, there is no further change in concentration
Explanation:
Answer: the cell will get smaller
1. On average, how do the proportions of typical and mutant bacteria change in the population over time?
Answer:
bacteria
Explanation:
Which of the following is a product of the Krebs cycle?
water
alcohol
carbon dioxide
glucose
Answer:
The answer is #3- Carbon Dioxide
Explanation:
The Krebs Cycle is a series of reactions that produces two carbon dioxide molecules, one GTP/ATP, and reduced forms of NADH and FADH2.
Answer:
carbon dioxide
Explanation:
https://quizlet.com/193523001/cellular-respiration-krebs-cycle-flash-cards/
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
10 points
Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
In a breed of dog, the gene for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur What is the most by explanation for the brown?
SC 912 L 16.1
The dog received a mutated gene
The dog only received one gene for fur color
The dog received two recessive genes for brown fur
The dog received one gene for brown fur and one gene for black fur
O
Answer:
the dog received 2 recessive genes for brown for
Explanation:
the only time a recessive trait will be shown physically is when the dog gets two recessive alleles
Answer: I believe its two recessive genes for brown fur
Explanation:
GIVING BRAINLIEST!
In the 1940s, American farmers lost 7% of their crops to pests. By the 1990s crop losses due to pests had risen to 13%. Select a reason for this increase.
A. Between the 1940s and 1990s more land was being developed for houses and city space. Less land was used to grow crops. The increased number of crops in smaller spaces led to increased numbers of pests.
B. The farmers were using reasonably effective pesticides in the 1940s. However, over time, more pests have evolved to become more resistant to the pesticides.
C. The pesticides decreased in quality due to America's expanding economy, allowing more pests to successfully feed on the crops.
D. Pests became used to the taste of pesticides and were able to detect when crops had been sprayed.
Answer:
b not for sure tho
Explanation:
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Answer b i think
Explanation:
I WILL GIVE BRAINLIEST!!!
Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss).
What is the probability that the offspring of two heterozygous parents will also be heterozygous?
Choose 1 answer:
(choice A)
A
[tex]\frac{0}{4}[/tex]
(choice B)
B
[tex]\frac{1}{4}[/tex]
(choice C)
C
[tex]\frac{1}{2}[/tex]
(choice D)
D
[tex]\frac{3}{4}[/tex]
(choice E)
E
[tex]\frac{4}{4}[/tex]
Answer:
D
Explanation:
It's D because past generations may not be heterozygous.
BRAINLIEST
1) What are the differences between artificial and natural selection?
2) What are the similarities between artificial and natural selection?
3 )How can environmental changes impact natural selection and adaptations?
4) When can extinction occur?
Answer:
1. artificial is done by humans, doesn't result in evolution or speciation and is a faster process
natural is random changes in the genotype of an organism that increase the change of the organism surviving and procreating thus passing on their genotype to the next generation
2. both can result in genotype and phenotype changes within a population
3. the environment and organisms are in constant relationship, as the environment changes the individual organisms within that environment that are best suited in a heritable way will survive and procreate more thus increasing the suitability of the population to the current environment
4. anytime a species is not able to replace it's numbers successfully, could be caused by environmental changes, predation pressures etc
Explanation:
Both matter and energy cycle through systems in nature. How are aerobic and anaerobic respiration part of one or both of these cycling systems?
Describe 3 ways the land/terrain change as we move from Charlotte NC to the coastal plains of North Carolina
Answer:
Hilly towards flat.
Higher elevation toward lower elevation.
Clayey to sandy type of soil.
Explanation:
The land of Charlotte NC is hilly whereas coastal plains of North Carolina is flat. Charlotte NC is located at a high elevation while on the other hand, the coastal plains of North Carolina are located at the sea and at lower height. The soil type of Charlotte NC is clay and silt whereas the soil type of coastal plains of North Carolina is sandy due to the presence of sea.
is Portland cement a mineral?
Answer:
no
Explanation:
Answer. no
Answer. no
explanation
Mitosis results in which of the following?
A. Two cells with different genes.
B. Two cells with identical genes.
C. Four cells with different genes.
D. Four cells with identical genes
Answer:
B
Explanation:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
All of the genes in a cell's nucleus.
Heredity
Genome
Alleles
Answer:
Genome
Explanation:
The cell nucleus contains all of the cell's genome.
Answer:
Cell
Explanation:
Please, anyone that can help ...
Answer:
TAGCCTAACGGG
number 10 i didnt learn about it
Light energy from the Sun is used by a plant to perform
photosynthesis. Which structure of the plant helps it to absorb this
energy?
Answer:
Chlorophyll absorbs the energy from the sun.
Explanation:
Light absorbed by chlorophyll excites the electrons in the ring as shown below.
Answer:
chlorophyll
Explanation:
The main pigment used in photosynthesis, chlorophyll, reflects green light and most intensely absorbs red and blue light. In plants, chloroplasts containing chlorophyll are subject to photosynthesis.
A double membrane wraps chloroplasts and includes a third inner membrane, the thylakoid membrane, which forms long folds within the organelle.
Can someone check my work?
Answer:
I think these are right but I am not 100% sure
Answer:
All wrong, but fix now
Explanation:
heredity is the passing of traits from parent to offspring
alleles are different forms of the same gene
genotype is genetic make up
phenotype is what an organism looks like
genes are instructions for a trait
genetics is the study of heredity
traits characteristics passed on to offspring
What is a gas that plants take in through small holes in their leaves for the process of
photosynthesis?
I WILL GIVE YOU BRAINLYEST!! PLSS HELP ME WAS NOT PAYING ATTENTION!! ONLY ANSWER IF U KNOW!!!
Answer:
Carbon dioxide
Explanation:. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.
During fermentation, the conversion of pyruvate into lactic acid requires?
Answer:
NADH
Explanation:
1. What two reactants enter the mitochondrion?
2. Compare the reactions in mitochondria with glycolysis.
1. How does a cell obtain energy?
2. Under what conditions does fermentation occur in a cell?
3. If a cell could perform both cellular respiration and fermentation, which process would benefit the cell more?
Answer:
1.NADPH2 and FADH2 , and O2
Explanation:
NADPH2 and FADH2 get oxidized in the electro transport chain into NADP+ and FAD+ and water and oxygen and yield 3 ATP molecules and 2 ATP molecules per each molecule respectively
Following are the answers:
The two reactants that enter the mitochondrion are pyruvate, the end product of glycolysis, and oxygen.In the mitochondria, pyruvate and oxygen undergo a series of reactions called cellular respiration, which produces energy in the form of ATP. This process is more efficient than glycolysis, which only produces a small amount of ATP.A cell obtains energy through a variety of processes, including cellular respiration and fermentation.Fermentation occurs in a cell when there is a lack of oxygen, such as in anaerobic conditions.In general, cellular respiration is more efficient than fermentation in producing ATP, but fermentation is a useful process for cells to produce ATP when oxygen is not available.What is mitochondria?Mitochondria are organelles found in the cells of most eukaryotic organisms, including plants, animals, and fungi. They are often referred to as the "powerhouses" of the cell because they are responsible for producing the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy.
Mitochondria are membrane-bound structures that contain their own genetic material, separate from the cell's nucleus, and are responsible for their own replication. They have unique characteristics that allow them to produce energy through the process of cellular respiration, a series of reactions that convert the energy from food molecules, such as glucose, into ATP. This process is one of the most important biological processes in living organisms, as it allows cells to perform their functions and sustain life.
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