Answer:
A. Earth is rotating counter clockwise
Explanation:
The Sun, the Moon, the planets, and the stars all rise in the east and set in the west. And that's because Earth spins -- toward the east. ... Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
Let me know if this is wrong...good luck and hope this helped!
Scientists studying human genes could obtain DNA from a cell’s
A.vacuole
B. ribosome
C. nucleus
D. cytoplasm
Answer: C. Nucleus
Explanation:
WILL MARK BRAINLIEST!! please help as quick as possible!!
What is similar about the primary structure of each protein?
The proteins are:
Milk
Meat
Eggs
Answer:
They are similar to the protein structure found in our bodies!
Explanation:
Which of the following is a true statement about scientific theory
Answer:
A. Scientific theory may be revised.
Explanation:
Scientific theory is based on the current scientific research. If new research is conducted and different conclusions made, then a theory may be revised.
#pennfoster
which is part of the theory of evolution by natural selection all animals in a
population
The theory of evolution by natural selection suggests that variation within populations facilitates adaptation and survival as environmental conditions change. Natural selection favors individuals with traits suitable for survival and reproduction in their environment, leading to evolutionary changes over time. Thus, variation is critical for the evolution of populations and species.
Part of the theory of evolution by natural selection is that all animals in a population do not display identical traits, as there exists natural variation within the population. This variation is essential because it provides a pool of different characteristics from which natural selection can occur. Individuals within a population that have traits better suited for survival and reproduction in their environment are more likely to pass on these favorable traits to their offspring, shaping the population over time. If an environmental change occurs, the presence of variation increases the likelihood that some individuals will already possess traits that make them apt to survive the change, thus allowing the population as a whole to persist. Natural selection plays a critical role in how populations evolve and how new species may arise, especially when populations become genetically isolated due to various factors like geographic barriers.
It's important to note that a completely homogeneous population where all individuals are genetically identical clones would have zero evolvability, as there would be no divergent traits for natural selection to act upon in the face of environmental changes. Therefore, variation within populations is crucial for the evolution of populations and for the survival of species through changing conditions.
In summary, the theory of evolution by natural selection explains that the inherited traits of a population change over time, influenced by the organism's ability to survive and reproduce in the environment. The uncontrolled growth potential of populations is checked by various external factors like predation and competition, which also play a role in evolution as they affect the survival and reproductive success of individuals.
The correct option is C because Small changes add up over many generations.
The concept of gradual change over time through the accumulation of small variations within populations. These variations can be inherited and can lead to changes in the characteristics of populations over successive generations, driving the process of evolution.
The other options are incorrect because
A. All animals in a population are able to reproduce: While reproduction is necessary for evolution, not all individuals in a population may be equally successful at reproducing.
B. Adaptations cannot be passed along to later generations: This contradicts the core principle of heritability. Traits that are beneficial for survival and reproduction can be passed on to offspring.
D. Animals have no variation among themselves: Variation is essential for natural selection to work. Individuals within a population exhibit differences in traits, which provide the raw material for evolution.
The complete Question is
Which is part of the theory of evolution by natural selection?
A. All animals in a population are able to reproduce.
B. Adaptations cannot be passed along to later generations.
C. Small changes add up over many generations.
D. Animals have no variation among themselves.
A female guinea pig homozygous dominant for black fur color is mated with a male homozygous for white fur color. In a litter of eight offspring, there would probably be ____. * 5 points 8 black guinea pigs. 4 black and 4 white guinea pigs 2 black, 4 gray, and 2 white guinea pigs 8 white guinea pigs.
Answer:
8 black guinea pigs
Explanation:
We're given that the black fur color is the dominant trait, meaning that this problem deals with complete dominance. In complete dominance, having just one allele is enough to express a certain phenotype. So let's say the female guinea pig has the genotype BB for homozygous black. The male would be bb since he's homozygous white, and the color white is recessive. Cross this and you get the genotypes Bb. But remember that even having one dominant allele will be sufficient to express the dominant phenotype. So all guinea pigs shall be black in fur color.
What are three ways in which carbon dioxide is put back into the earth?
Answer:
below
Explanation:
when an organism decays, burning fossil fuels, respiration/breathing.
These are the top three that come to my head, hope this works :)
Which of these changes in the foodweb would cause a decrease in the population of tundra swans?
A. A decrease in the population of vegetation
B. An increase in the population of benthic invertebrates
C. An increase in the population of wading birds
D. A decrease in the population of osprey
Answer:
I believe it would be a
Explanation:
It eats the vegetation so less food means they have less chance of survival
Final answer:
A decrease in the population of vegetation (option A) would most directly cause a decrease in the population of tundra swans by undermining the support of the food web.
Explanation:
The question asks which changes in the food web would cause a decrease in the population of tundra swans. Considering the given options:
A decrease in the population of vegetation could potentially lead to a decrease in the population of tundra swans, as the vegetation is likely a primary food source for organisms that tundra swans feed on.An increase in the population of benthic invertebrates, which might be part of the tundra swan's diet, would not cause a decrease in swan population.An increase in the population of wading birds may lead to increased competition for food resources with the tundra swans.A decrease in the population of osprey, which might be a predator or a competitor, could have complex effects, but is less likely to directly cause a decrease in tundra swan populations compared to the other factors.The most accurate answer is option A: A decrease in the population of vegetation could lead to a decrease in the population of tundra swans, by reducing the overall food web support.
Which of the following processes can all of the above organisms perform in order to maintain stable internal environments?
get rid of waste
reproduce
extract energy from food
Answer: all of the above
Explanation:
The processes that organisms perform in order to maintain stable internal environments may include getting rid of waste, reproducing, and extracting energy from food. Thus, the correct answer to this question is all of the above.
What is the process of maintaining the internal environment called?The process of maintaining the internal stable environment in living organisms is known as homeostasis. It is the state of maintaining steady internal, physical, and chemical conditions maintained by living systems.
This biological process balances all the body systems that are required for the body to survive and function correctly. It subsequently defines the ability or tendency of an organism to control and maintain a constant or same internal environment. It includes the process of digestion, reproduction, excretion of waste, extraction of energy from food, etc.
Therefore, all of the organisms on this planet perform all processes in order to maintain stable internal environments.
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(BRAINLIEST!) Name the organ without all types of tissue.
Answer:
heart
Explanation:
i dont know
If an object is moving in a straight line at a steady speed, then the forces acting on it are
balanced.
True
False
Choose all of the following that are examples of evidence for evolution.
Choose all of the following that are examples of evidence for evolution.
a
fossils
b
geographical distribution
c
embryology
d
comparative anatomy
e
carbon dating
f
artificial distribution
Answer:
A B C D
Explanation:
Following are examples of evidence for evolution:
a. fossils
b. geographical distribution
c. embryology
d. comparative anatomy
e. carbon dating
What is evolution?Evolution is the process by which species of living organisms change over time through natural selection. It is a slow and gradual process, occurring over millions of years, that results in new species emerging through genetic mutations and adaptations to their environment.
The concept of evolution was first proposed by Charles Darwin in the 19th century and has since been widely accepted as the scientific explanation for the diversity of life on Earth.
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PLEASE HELP ASAP WILL MARK BRAINLIEST!!!
1. Type of asexual reproduction (mitosis) where a specialized reproductive cell is surrounded by a hard outer casing
Ans: _ _ _ _ u _ _ _ _ _ _
(To clarify it can be two words but that’s how many letters are in it and there’s a “u” on the fifth letter)
2. the location in the female reproductive system where fertilization occurs
Ans: _ _ i _ _ _ _
(To clarify it can be two words but that’s how many letters are in it and there’s a “i” on the third letter)
The process of asexual reproduction where a reproductive cell is enveloped by a hard outer casing is spore formation. Regarding the female reproductive system, fertilization generally happens in the Fallopian tube.
Explanation:The type of asexual reproduction where a specialized reproductive cell is surrounded by a hard outer casing is called spore formation. This is a common method of asexual reproduction in fungi, algae, and some plants. In this scenario, the parent organism produces spores - small, lightweight cells capable of growing into new organisms without the need for fertilization.
The location in the female reproductive system where fertilization occurs is known as the Fallopian tube. The Fallopian tubes connect the ovaries to the uterus. After ovulation, the oocyte (egg) travels into the Fallopian tube where it can be fertilized by sperm.
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25 POINTS!!! PLZZ HURRY, IM BEING TIMED
Which structures do plant cells have for making food that animal cells do not? mitochondria vacuoles lysosomes chloroplasts
Answer:
Chloroplasts
Answer:
It's the chloroplast.
Explanation:
Pls mark as brainliest!
What is a species?
(you can come up with your own definition based on your current knowledge!)
PLS HELP I WILL GIVE BRAINLEST
How could you explain this change in the rate of the diseases spread?
Just type what you think
Answer:
People staying at home helps by making the disease die slowly by not being able to find a host.
Answer: It change it a lot because people are still going out and not wearing mask so now there more people get this disease and people are trying to travel of now it going up or some people are running out of supplies are are going to the store but if we stay careful it could go down but there are thousands of people who aren't taking this seriously
Explanation:
Which options identify what the arrows in the diagram
represent? Check all that apply.
atoms
elements
energy
gas
particles
Hurry
Answer:
pictures....
Explanation:
pictures
What type of wave is shown above?
transverse wave
O longitudinal wave
surface wave
electromagnetic wave
Answer: Longitudinal wave
Explanation:
Explain the difference between selective breeding and genetic engineering in the development of food crops with desirable traits.
In plants, asexual reproduction is most likely to occur through the:
A Seeds incorrect answer
B Roots incorrect answer
C Flowers incorrect answer
D Leaves incorrect answer
In plants, the asexual reproduction is most likely to occur through the stems, roots, and buds. Thus, the correct option is B.
What is Asexual reproduction?Asexual reproduction is the process of reproduction which does not involve gamete formation and fertilization. In asexual reproduction, only one parent is involved.
Asexual reproduction in plants is also called as vegetative propagation. Asexual reproduction in plants mainly occurs in the roots, stems, and the buds. Asexual reproduction does not involve seed and flower formation.
Therefore, the correct option is B.
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Final answer:
Asexual reproduction in plants often occurs through roots or other plant parts such as stems and leaves, with roots being a common method. For instance, dandelions reproduce asexually via roots, leading to genetically identical clones of the original plant.
Explanation:
In plants, asexual reproduction can occur through various organs such as leaves, stems, and roots. However, roots are commonly used for this type of reproduction. For example, the dandelion uses its roots for asexual reproduction, and woody trees like poplars and aspens can send up new stems from their roots. This can eventually lead to the creation of an entire grove of trees that are clones of the original plant. A noticeable advantage of asexual reproduction is that when cuttings or buds are taken from an adult plant or plant parts, the resulting plant will grow into an adult faster than a seedling. Many plants, like garlic and strawberries, also use underground storage organs like bulbs, corms, tubers, and runners for asexual reproduction.
Hurricanes are more destructive than tornados due to _____.
a. coastal storm surges
b. their shorter duration
c. the combination of high winds and flood waters
d. all of the above
C. The combination of high winds and flood waters.
Hope this helps you! :)
Answer:
If you can only select one answer, C.) the combination of high winds and flood water. If you can select more than one answer, A.) coastal storm surges, would work as well.
Explanation:
Imagine you are a detective examining a crime scene. You are trying to
identify the person who committed the crime, so you collect many samples at
the crime scene. Which sample would be most useful in identifying the
person who committed the crime?
O
A. A watch and keys found at the crime scene
O
B. Pieces of flooring from the crime scene
O
C. Drops of blood found at the crime scene
O
D. Plants growing at the crime scene
Answer:
C
Explanation:
The sample that would be most useful in identifying the person who committed the crime would be option C: drops of blood found at the crime scene, as blood contains genetic material in the form of DNA.
What are DNA and a blood sample?DNA (deoxyribonucleic acid) is a molecule found in cells that contains genetic information. DNA is unique to each individual, except in the case of identical twins, and can be used to identify a person through a process called DNA profiling or DNA fingerprinting.
When blood is left at a crime scene, it contains DNA that can be analyzed by forensic scientists to create a DNA profile of the person who left the blood. This is usually done through a process called PCR (polymerase chain reaction), which amplifies the DNA found in the sample so that there is enough material for analysis. Once the DNA has been amplified, it can be analyzed to create a DNA profile.
Hence, the sample that would be most useful in identifying the person who committed the crime would be option C: drops of blood found at the crime scene, as blood contains genetic material in the form of DNA.
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How does global warming affect the strength of these storms?
Answer:
Global warming could affect storm formation by decreasing the temperature difference between the poles and the equator. That temperature difference fuels the mid-latitude storms affect the Earth's most populated regions. Warmer temperatures could increase the amount of water vapor that enters the atmosphere
Explanation:
mark me brainliest
Answer:
Global warming could affect storm formation by decreasing the temperature difference between the poles and the equator. That temperature difference fuels the mid-latitude storms affect the Earth's most populated regions. Warmer temperatures could increase the amount of water vapor that enters the atmosphere.
Explanation:
Spring tides are the lowest tides of the year.
True
False
Answer:
False
Explanation:
Hope this helps :))
Answer:
true
Explanation:
Trust me, its true
Why is photosynthesis important in the carbon cycle
Answer: Because
Explanation:
Which of the following best describes alcoholic fermentation?
A. Alcoholic fermentation is the final step of cellular respiration.
.
B. In the absence of oxygen, cells release ATP by breaking down
ethanol into glucose and water.
C. In the absence of oxygen, cells release ATP by breaking down
glucose into ethanol and carbon dioxide.
O D. Alcoholic fermentation is the first step of cellular respiration.
Answer:
I would say C, based on this research. Not 100% sure tho
Explanation:
Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-product
Alcoholic fermentation begins with the breakdown of sugars by yeasts to form pyruvate molecules, which is also known as glycolysis. Glycolysis of a glucose molecule produces two molecules of pyruvic acid. The two molecules of pyruvic acid are then reduced to two molecules of ethanol and 2CO2
C. In the absence of oxygen, cells release ATP by breaking down
glucose into ethanol and carbon dioxide.
What is ethanol fermentation used for?Ethanol fermentation is used in the production of alcoholic beverages. Lactic acid fermentation is used to flavor or preserve dairy and vegetables. Lactic acid fermentation also occurs in muscle cells under strenuous activity.
What are the two stages of ethanol fermentation?Alcohol fermentation has two steps: glycolysis and NADH regeneration. During glycolysis, one glucose molecule is converted to two pyruvate molecules, producing two net ATP and two NADH.
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5. To whom should you report any irregular occurrences or accidents during a lab?
Answer:
You need to report irregular occurrences, accidents, spills to the teacher immediately.
Explanation:
2.
Originally, scientists classified
organisms into five kingdoms based,
in part, on structure.
O cell
family
organ
Answer:
On structure
Explanation:
Robert Whittaker classified the organisms in a broader sense based on many characteristics which could be the limitations of the previous system of classification.
The Whittaker classified the organisms into five large kingdoms called monera, protist, fungi, plants and animals. The basis for this classification is the cell occurrence, their mode of nutrition and cell structure.
In the given question, since the only structure of cell option is provided therefore will be the correct option.
Thus, On structure is correct.
Answer:
cells
Explanation:
When do cells differentiate? That is, when do cells first become different kinds of cell-muscle cells, nerve cells, reproductive cells,
etc.?
A
during the 19 trimester
B.
during the 3rd trimester
C.
during the 2nd trimester
D.
before fertilization
Answer:
during the 1st trimester
Explanation:
Just did it on study island
Cellular differentiation begins in the third week after fertilization, where unspecialized stem cells become various specialized cell types. The correct option seems to be missing which is the third week after fertilization.
Cells begin the differentiation process early in embryonic development. Specifically, cellular differentiation starts during the third week after fertilization when the embryo starts to form various specialized cells. This is when stem cells become specialized into cell types such as muscle cells, nerve cells, and reproductive cells. As part of this process, certain genes are activated, indicating the cells' transition into different forms with unique structures and functions suitable for their roles in the body.
Which ecosystem is the least stable?
A. A patch of lichens on bare rock
B. A rain forest on a small island
C. A savanna on a large volcanic island
D. A vast coral reef in a warm ocean
Answer:
A. Patch of Lichens on a bare rock
Explanation:
the tissue that carries electrical message throughout the body is _____ tissue.
Answer:
the tissue that carries electrical message throughout the body is bad tissue.
Answer:
fiber
Explanation: