Answer:
They move their heads protruding out in all directions forming a thick myosin filament.
Explanation:
Please mark brainliest and have a great day!
Answer:
Myosin heads attach to and move along actin-binding sites
Explanation:
I just took the test, and I got 100%!!!
The change that occurred in peppered moths is an example of
a. overproduction
b. natural selection
c. migration
d. isolation
Answer:
I think it's D, but it could be B.
Explanation:
Answer:
B. natural selection
Explanation:
when a species needs to breed the males often compete and the stronger of them usually prospers, causing them to be more likely to breed.
Which of the following defines wikipedia
Answer:
a free encyclopedia...but probably best not to use it cos apparently anyone can just edit it
Wikipedia is an online encyclopedia that operates through a process called crowdsourcing, which involves soliciting contributions from a large online community. It sources its information from a range of resources such as government reports, newspapers, and other well-regarded media organizations. It has become a very significant source of knowledge production.
Explanation:Wikipedia is an online encyclopedia that is the result of a crowdsourcing effort. Unlike traditional encyclopedias such as the Random House Encyclopedia and the New Encyclopædia Britannica, which are written by experts and provide detailed information, Wikipedia allows thousands of volunteers to add and correct material. This process, evident in digital platforms like Wikipedia and Kickstarter, is known as crowdsourcing. This method of gathering services, ideas, or content bypasses traditional routes and instead harvests the collective knowledge of a large online community.
Wikipedia collects and presents information in the form of articles on various topics. These are sourced from long articles, reports from major newspapers and well-regarded media organizations, government and international agency reports, well-sourced nonacademic books, and more. It has become a significant source of knowledge production, as explained by Danah Boyd in her work, 'It's Complicated: The Social Lives of Networked Teens.'
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Which best describes how parents affect the genotype of a child?
A.the parents decide what to feed their child
B.the parents choose whether to educate their child
C.the parents allow their child to stay up late
D. the parents pass along genes to the child
Answer:
d. the parents pass along genes to the child
Explanation:
the other answers are based on decisions and that is not what genotypes do
Answer: D. the parents pass along genes to the child
Explanation: The word genotype refers to the genes in a human's DNA that determine traits, the heritable genetic identity and some of the physical characteristics of that organism such as eye and hair color height, certain diseases and behaviors, parents pass that to their children.
Molecular models of two different substances are shown below. In the
molecule on the left, the oxygen atom pulls on electrons more strongly than
the hydrogen atoms. In the molecule on the right, the two oxygen atoms pull
on the shared electrons with the same strength.
Water molecule, H,O Oxygen molecule, Oz
When the two substances are put in the same container, they do not attract
each other. Why does this happen?
A. They both contain oxygen.
B. One is polar and one is nonpolar.
C . They are both polar.
D. They contain different elements.
Answer: Option B
Explanation:
The molecules that is described in the model is water [tex]H_{2}O[/tex] and other molecule is [tex]O_{2}[/tex] molecule.
Due to difference in electronegativity of hydrogen atom and oxygen atom there is partial positive charge on each hydrogen atom and partial negative charge on oxygen atom of [tex]O_{2}[/tex] molecule.
Hence, water is a polar molecule.
Whereas in [tex]O_{2}[/tex], there is covalent bonding due to sharing of electrons. Hence, this molecule is covalend and hence, it is neutral in nature.
Therefore, [tex]O_{2}[/tex] is a non-polar molecule.
So, both the molecules are put together in the container then there will be no attraction in between them because water molecules contains charge but oxygen molecules does not contain any charge as they are neutral.
Thus, we can conclude that one molecule is polar and other is non polar so they do not attract each other.
which is an example of a vestigial structure?
A: paw of a lion
B: wing of a bird
C: appendix of a human
D: tail of a cat
(I think it's A but I'm not sure)
Answer:
Pelvic bone of a snake
Explanation:
Muscular dystrophy can result in loss of mobility and lack of coordinated movements. Given this information, what does mu
• Muscle tissue from communicating with the brain
Connective tissue from creating blood cells
Epithelial tissue from excreting and absorbing
Bone tissue from supporting the weight of the body
Answer:
Muscle tissue from communicating with the brain
Explanation:
Answer:
Muscle tissue from communicating with the brain
Explanation:
Muscular dystrophy is the term used to describe a group composed of more than 30 diseases that directly affect the muscular system. These diseases are of a genetic nature and are directly linked to the X chromosome. As already mentioned, this group of diseases causes damage to the muscles and their progressive degeneration, in addition to their malfunction, because it prevents muscle tissue from communicating with the brain. .
These diseases are commonly present in men, although women are asymptomatic carriers of the defective gene responsible for the disease.
Drag each label to the correct location on the image.
G
Organisms adopt different strategies and structures to make sure their offspring
it uses.
herds young into
center of group
produces many
offspring at once to
protect against high
predation risk
protects offspring
until environmental
conditions are ideal
for growth
COO
B
13
1994
7
ODOS
SI
.
AN
.
I
Answer:
1)herds young in to center of group
2)produces many
offspring at once to
protect against high
predation risk
3)protects offspring
until environmental
conditions are ideal
for growth
Explanation:
Answer:
1)herds young in to center of group
2)produces many
offspring at once to
protect against high
predation risk
3)protects offspring
until environmental
conditions are ideal
for growth
Explanation:
what are some possible consequences of preventing prescribed burns and natural wildfires
Answer:
Just to name a few...
- The soil around the forest may start to erode
- Lose its mineral wealth and resources
- If not controlled, plant life can take over buildings or homes.
Explanation:
Please mark brainliest and have a great day!
Preventing prescribed burns and natural wildfires can lead to increased risk of catastrophic wildfires, ecological disruptions, and affect public safety and resource management decisions.
Possible consequences of preventing prescribed burns and natural wildfires:
Increased risk of catastrophic wildfires: Suppressing fires can lead to a buildup of flammable material, making forests more vulnerable to destructive fires in the long term.Ecological changes: Fire exclusion can disrupt forest ecosystems, affecting forest structure and function.Public safety and resource management: Decisions on fire management can impact personal liability, career implications, and long-term risks to ecosystems and communities.the study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem
Answer:
Ecology.
Explanation:
It's the study of the interaction between organisms with eachother and their environment.
Ecology is the scientific study of how living organisms interact with each other and their environment, spanning levels from individual organisms to complete ecosystems.
The study of the interaction between living organisms and their environment is called ecology. This branch of biology deals with the relationships that living organisms have with one another as well as with their physical surroundings. Ecologists explore these complex interactions at various levels, including organismal, population, community, and ecosystem levels. At the most inclusive level, they study ecosystems, which consist of both the biotic (living) and abiotic (nonliving) components of an environment. An ecosystem can be as small as a drop of water or as large as a forest and includes both aquatic and terrestrial types.
Understanding ecology is vital to address many issues facing our world today, such as climate change, biodiversity conservation, and sustainable development. The field overlaps with other disciplines like geography, geology, climatology, and environmental science, illustrating its broad relevance to our understanding of life on Earth.
Some plants require fire in order to release their seeds. True False
This statement is true!
Sunny~ ☺
Scientists recently discovered a species of bacteria that’s capable of photosynthesis, but it’s anaerobic and doesn’t produce or use oxygen for respiration. Which process will be absent in this organism?
Answer:
Bacteriochlorophyll
Explanation: Bacteria that contain bacteriochlorophyll do not use water as an electron donor and therefore do not produce oxygen.
Answer:
Krebs cycle.
Explanation:
Anaerobic bacteria do not do the process called the Krebs Circle. This is because the Krebs Circle only happens in the presence of oxygen and anaerobic bacteria do not survive in the presence of oxygen.
The Krebs cycle, also called the citric acid cycle, or the tricarboxylic acid cycle, is one of the phases of cellular respiration discovered by biochemist Hans Adolf Krebs in 1938. This phase of respiration occurs in the mitochondrial matrix and is considered a amphibolic, catabolic and anabolic route.
In the Krebs cycle, pyruvic acid (C3H4O3) from glycolysis undergoes oxidative decarboxylation through the action of the pyruvate dehydrogenase enzyme found within the mitochondria of eukaryotes, and reacts with coenzyme A (CoA). The result of this reaction is the production of acetylcoenzyme A (acetylCoA) and a carbon dioxide (CO2) molecule. AcetylCoA then reacts with oxaloacetate, or oxalacetic acid, releasing the coenzyme A molecule, which does not stay in the cycle, forming citric acid.
The Krebs cycle is oxygen dependent because decarboxylation of pyruvic acid is by oxidation; Once oxidized, this acid reacts with coenzyme A to form acetylcoenzyme A. Throughout the Krebs cycle, a large amount of ATP is produced, hence it is considered a major energy producer.
At what point on a roller coaster is the gravitational potential energy (GPE) the lowest?
Question 7 options:
at the top of the highest drop
at the lowest point of the roller coaster
while on the decline
while on the incline
Answer:
at the lowest point
Explanation:
highest at the highest point lowest at the lowest point
which interaction would be an example of competition?
A. clown fish and anemones
B. rabbit and hawks
C. sharks and remoras
D. weeds and planktons
E. sharks and planktons
An example of competition is found in option D, where weeds and plankton (especially aquatic plants, also known as 'weeds') compete for resources such as sunlight.
Competition occurs between individuals of two or more species that utilize the same resource in a given area. Weeds typically compete for water and nutrients with other plants in their vicinity. Although planktons are not directly competing with weeds, this option would still be an example of interspecific competition for resources such as sunlight if considering aquatic plants, which are often referred to as 'weeds' in the context of competition with algae (which are a type of plankton).
The graph shows three different projections of human population growth. If you assume that the high projection is correct, what is one way the larger human population can ensire it has enough food?
A. By returning to hunting and gathering
B. By finding more effcient ways of growing crops
C. By learnign to eat a lot less food
D. By focusing more on ideas and services
Answer:
B
Explanation:
They are correct. It is B, by finding more efficient ways of growing crops
The one way the larger human population can ensure it has enough food is option B. By finding more efficient ways of growing crops.
What are the ways for the larger human population to ensure it has enough food?Grow a wider variety of crops. Around 60 percent of all calories consumed come from just four crops: rice, wheat corn, and soy. Ensuring food access and availability in the face of climate change will require the production of a wider range of foods.Reduce Food Waste. An estimated one-third of all food produced is wasted from farm to home. One of the solutions is to upcycle food that would have been thrown away. This includes turning waste food into useful items, finding buyers for food that would rot in the fields if unsold, to selling non-uniform – or ugly – fruits and vegetables.Shift Diets to More Plant-Based Foods. A diet high in meat is very wasteful. Meat from cattle, sheep, and goats uses precious resources, and the demand for meat and dairy products is steadily growing. The only way for more people to have access to animal-based proteins is for other people to consume less. Look to the Seas for More Food. With the earth's population growing, turning to the world's oceans for food is the new blue food revolution. But taking more fish out of our oceans and inland waters is not the answer.To learn more about population and food, refer to: https://brainly.com/question/18681084
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Choose the best explanation of codominance. A. Genes are blended during homologous recombination. B. In a heterozygote, both alleles are expressed. C. In a heterozygote, both alleles combine to form an intermediate phenotype. D. A heterozygote is considered a carrier for the recessive allele.
The exact explanation for co dominance is that in a heterozygote, both alleles are expressed.
Answer: Option B
Explanation:
Mendel drafted certain terminologies in the history of genetics such as dominance and recessive traits. But later after Mendel, certain scientists found out some exceptions for this concept such as codominance, incomplete dominance and linkage.
Among this codominance is a trait in which for a heterozygote individual has both the characters expressed for example when a red flower and a white flower are mixed, the resulting flower is pink in color.
The best explanation of codominance is in a heterozygote, both alleles are expressed. Therefore, option (B) is correct.
Heterozygous individuals express both gene alleles due to codominance. In codominance, both alleles are expressed separately without blending, unlike in partial dominance.
A and B alleles dominate the ABO blood group system. A and B antigens are expressed on red blood cells if a person inherits A and B alleles from their parents. Thus, the person's blood type is AB, not A-B. Therefore, option (B) is correct.
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Why is summer considered the best out of the 4 seasons? Explain why...
Summer's considered the best out of the 4 seasons because most people are on summer vacation and they are able to spend quality time with their family without all the snow or cold weather.
which best describes the earlest land plants
Answer:
The land is believed to be inhabited by the algae on the first. The earliest land plants were the ones which did not have deep roots. They were the non-vascular plants and included mosses, hornworts, and liverworts. i.e., the bryophytes. They reproduced through spores. They also had very thin leaves.
Match the following. 1. an act of fertilization involving the transfer of cell contents to another cell; usually occurs in simpler organisms diploid 2. having chromosomes in homologous pairs conjugation 3. a type of mating pattern in which eggs and sperm are released into the water after the mating partners come near one another; occurs outside the body of the female external fertilization 4. the fusion of gametes to produce a new cell or zygote; often said to be the union of egg and sperm fertilization 5. having a single, complete set of chromosomes, or one half of each pair of homologous chromosomes haploid
Answer:
1. Conjugation
2. Diploid
3. External fertilization
4. Fertilization
5. Haploid
Explanation:
Conjugation is a cell-to-cell encounter between bacteria cells. The bacteria come close to each other and DNA is then transferred through a tube-;ike structure called pilius.
The difference between diploid and haploid is that diploid organisms have chromosomes that come in pairs. The chromosomes are paired up with another chromosome that is similar in shape and size and that is why they are called homologous pairs. Haploid on the other hand do not come in pairs. In human beings for example, the egg cell and sperm cell are haploid, only having one homologous chromosome. When they join together during fertlization, they form a diploid.
Fertilization is the union of gamete cells, male and female, which result in the formation of a zygote. There are two types of fertilization, internal and external. Internal fertilization occurs when the union of the sex cells (gametes) occur inside the organism. You would see this in humans, where fertilization occurs in the womb. External fertilization occurs when the union occurs outside the organism and a good example of this would be fish. The female expels it's eggs into the water and the male would release its own sex cells as well, and they would join in the water.
You're moving into a new apartment and trying to fit your large chair through the doorway. Your friend, who is helping you move, suggests rotating the chair a different way and seeing if it fits. However, you remember that the last time you moved the chair, it must first be reclined in order to fit through the doorway. Which choice below correctly identifies the learning strategies that you each are using in this example?
A. Your friend is demonstrating trial-and-error, and you're demonstrating imprinting.
B. Your friend is demonstrating insight, and you're demonstrating trial-and-error.
C. Your friend is demonstrating trial-and-error, and you're demonstrating insight.
D. Your friend is demonstrating insight, and you're demonstrating imprinting.
A monophyletic group is defined as a common ancestor and all of its descendants. A _______ is defined as a common ancestor and some of its descendants.
A. clade
B. monoclade
C. paraphyletic group
D. diphyletic group
Answer:c
Explanation:
A paraphyletic group is defined as a common ancestor and some of its descendants. The correct option is C.
A paraphyletic group is characterized as a common ancestor and some of its descendants, but not all.
It comprises a subset of the offspring of a common ancestor but excludes specific branches or lineages that evolved independently.
When a group is classified into subgroups, but not all descendants are included in each subgroup, this idea is frequently employed in biological categorization.
A monophyletic group (option A) comprises all descendants of a common ancestor, whereas a paraphyletic group (option C) includes just some descendants of a common ancestor.
Thus, C. paraphyletic group is the right answer.
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which action is a reflex action
Answer:
blinking when light is flashed in the eyes
Explanation:
Edmentum, PLATO, etc.
Hope I helped :)
The diagrams below show the anatomy of the eye in four different animals. Select the two that provide the best evidence of inheritance from a shared ancestor.
Answer:
Option A and C
Explanation:
The anatomy of eye A and C share common characteristics. Though It may appear that the eye anatomy in option D is similar to the anatomy of eye A and C, but if the image is seen properly, it could be noted that the retina in option D is in front of the nerve fiber while in case of both option A and C, it lies at the back side of nerve fiber.
Though there is variation in lens shape in option A and C but yet they resemble very closely in their structure. Option B is an outlier.
Hence, option A and C are correct
Answer: the large one and the smallest one
Explanation:
right on plato
according to cell theory; which structures carry out the basic function of living things?
a. atoms
b. organs
c. cells
b. nuclei
According to cell theory, cells carry out the basic function of living things.
What is cell theory?The cell theory is a scientific theory that states that,
All organisms are made up of cells.All new cells are produced by pre-existing cells.The cell theory states that the cell is the fundamental structure and functional unit of living matter.
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Which statements describe continental crust? Select the three correct answers (apex)
A. It is formed at some of volcanic activity on the ocean floor
B. It is between 25 and 70 km thick
C. It is made of all types of rocks
D. It contains silicate minerals high in sodium, potassium, aluminum and calcium
E. It is relatively young (less than 180 million years old)
Answer:
B, C, D
Explanation:
The following statements are true regarding the continental crust;
It is between 25 and 70 km thick
Its made of all types of rocks
It contains silicate minerals high in sodium, potassium, aluminum, and calcium
Answer: Option (B), (C) and (D)
Explanation: Continental crust is a thick plate that comprises of sedimentary, metamorphic and igneous types of rocks. They are less denser compared to the oceanic crust and usually have a thickness of about 35-40 km, and increases upto 75-80 km at the mountain ranges. It often contains silicate minerals, that are mainly enriched in sodium, aluminium, calcium and potassium.
Thus, the correct options are mentioned above.
What’s the role of oxygen in cellular respiration?
Answer:
if oxygen is present aerobic respiration takes place and pyruvate produced in glycolysis in cytosol enters into mitochondrion for further oxidation through kreb's cycle
Cellular respiration is the process through which cells generate energy. Although other species, such as yeast or bacteria, don't necessarily require it, our body cells require oxygen to carry out this activity.
What oxygen role in cellular respiration?They can produce energy in different ways. However, since the main topic of this lesson is the function of oxygen, we'll stick with animal cells, such as those found in human body.
Cellular respiration takes place within every body cell. They transform carbon dioxide and glucose, a substance that is present in meals, into ATP (adenosine triphosphate), or cellular energy.
Despite the fact that this process can be described by a single equation, there are really a number of minor processes that must be completed before we may use oxygen to produce ATP.
Therefore, Aerobic respiration occurs if oxygen is present, and pyruvate produced during glycolysis in the cytosol enters the mitochondrion for further oxidation through the Kreb's cycle.
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What is the purpose of the retina?
to convert light rays into neural impulses
to focus incoming light rays
O to see sharpness in images
to change size depending on the light it sees
Answer:
The purpose of the retina is to receive light that the lens has focused, convert the light into neural impulses
Answer:
the answer is option a to convert light rays into neural impulses
Explanation:
Which of the following correctly describes the difference between arteries and veins?
A. Veins bring blood to the lungs, while arteries circulate blood to the body
B. Veins carry oxygenated blood, while arteries carry blood low in oxygen
C. Arteries carry oxygenated blood, while veins carry blood low in oxygen
D. Arteries carry blood to the heart, veins carry blood away from the heart
Answer:
C. Arteries carry oxygenated blood, while veins carry blood low in oxygen
Explanation:
Arteries and veins are two types of blood vessels that differ in their structure, function, and location in the body. Arteries are the blood vessels that carry the oxygenated blood from the heart to the body parts.
On the other hand, veins are the blood vessels that collect the deoxygenated blood from various body parts and deliver it to the heart for oxygenation.
Answer:
C
Explanation:
Comprehensive Biology
What scientific breakthrough occurred around 50 years ago that
of the biology puzzle together?
Discovery of cells
Evolutionary theory
The discovery of cells is correct.
which symbols below represent the ions found in the glass of water ?
A. OH- and H+
B. CO2 and O2
C. O2 and H2
D. NH3- and H+
Answer:
A
Explanation:
a rational expression has been simplified below. (x-5) (x+1)/3(x+1) = x-5/3 for what values of x are the two expressions equal
Answer:
All real numbers except -1
Explanation:
apex
All are real numbers except -1.
Why is it referred to as a rational expression?
An algebraic expression wherein each the numerator and the denominator are polynomials e.g. is referred to as a rational expression. for the reason that denominator can't be 0 there are values of x that can be excluded from the rational expression.
What is the real number?Real numbers are numbers that include each rational and irrational numbers. Rational numbers such as integers (-2, zero, 1), fractions(1/2, 2.5) and irrational numbers together with √three, π(22/7), and so on., are all actual numbers.
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