Answer:
The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. ... Not only their behavior changed; domestic dogs are different in form from wolves, mainly smaller and with shorter muzzles and smaller teeth.
Explanation:
hope this helps
Dogs were most likely domesticated by chance when wolves began following ancient hunter-gatherers to eat their garbage. The theory goes that docile wolves were given extra food scraps to help them survive and pass on their genes.
What is evolution?The gradual change in the genetic composition of the organism that led to the generation of new characters in the next generations is called evolution.
Dogs may have become domesticated because the forefathers had too much meat to eat. During the ice age, hunters and gatherers may have shared their surplus with wolves, who became their pets.
All dogs are descended from wolves, according to their ancestors. Gray wolves and dogs diverged about 15,000 to 40,000 years ago from an extinct wolf species.
Thus, it can be concluded that many changes occurred during the evolution of dogs from wolves.
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Outline the role of the nucleus.
Answer:
To contol all the activities in the cell
plsss help will mark brainlyest to whoever gives correct answers.
Answer:
its d
Explanation:
Answer:
It's aquifier.
Explanation:
Precipitation is at the top because it any form of water that falls from clouds and reaches Earth's surface. It is not aquitard because that is a slab of impervious surface at the bottom of an aquifer that does not allow water to go through and is at the bottom of the image. The arrow is the gravity, so the only thing left is aquifier, a permeable layer of rock and sediment that stores and brings groundwater in enough quantities to supply wells.
IT'S A 3 QUESTION ASSIGNMENT. WHICH I NEED HELP WITH
As wavelength decreases, what happens to frequency?
Answer:
the Frequency remains constant
Answer: So if a wave slows down, its wavelength will decrease. ... Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases.
Explanation:
Potential drawbacks of utilizing wind as a source of electricity do not
include...
Interrupting the view in normally scenic and uninhabited places.
Noise produced by the spinning rotors.
Electricity from wind farms is far more expensive than fossil fuel-generated electricity.
Answer:
Interrupting the view in normally scenic and uninhabited places.
Explanation:
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Which is the function of the exoskeleton in animals?
A) Produces the sperm used in reproduction
B) Protects against different weather
C) Protects against their environment
D) Works with muscles to allow movement
Answer:
c
Explanation:
the exoskeleton is a hard shell that can provide protection from outside dangers
Question 2 of 10 Which statement does not describe the relationship between genes and inherited traits?
A. Some inherited traits are affected by more than one gene.
B. Inherited traits carry the instructions for individual genes.
C. Individual genes carry the instructions for inherited traits.
D. Some genes influence more than one inherited trait.
Answer:
B. Inherited traits carry the instructions for individual genes.
please help me if you can
Answer:
50%
Explanation
G G
g Gg Gg
g Gg Gg
since each box has Gg it has to be 50%
Create a ranking system for the terms from one to six. The first one has been completed for you. Rank the remaining terms as two through six.
1) letter
chapter
word
page
book
sentence
Answer:
2 - word
3 - sentence
4- page
5 - chapter
6 - book
In two or more complete sentences, describe a scenario where human activities are related to an increase or decrease in blodiversity in an ecosystem. Write your answer in the essay box below
Answer:
Deforestation and loss of green areas so that factories can use those areas for their benefit, exploiting the natural resources around them decrease an ecosystem's biodiversity. The invasion of industrial areas and excessive use of their natural resources causes a disbalance in the ecosystem because the plants, water, nutrients, minerals, amongst other elements, are used by industries killing animals and species, reducing populations due to pollution, and lack of food.
Explanation:
An ecosystem is a system where animals and living organisms, such as plants or bacteria, live together with nonliving elements. Living organisms interact with each other and with nonliving ones to keep the system balanced.
We can define biodiversity as the variety of living things that exist in an ecosystem.
Human activities like deforestation and the building of big factories near areas with large amounts of natural resources lead to the killing of many species. As industries kill in excess species, or they pollute an ecosystem's soil and water, the species' population decreases. Asa result, there is a disbalance in the ecosystem.
A human activity that increases biodiversity is the protection of endangered animals or laws to protect natural areas where there are many species of plants and animals that are of high importance for the planet.
During a research project on the tundra, students selected important information about the biome which is shown below:
The tundra is known for its low temperatures, low precipitation, and layer of permafrost. The growing season is about 50-60 days. Temperatures range from an average of -34oC in the winter to an average of 8oC in the summer.
Some organisms that live in the tundra are:
low shrubs lemmings
mosses hares
lichen foxes
grasses polar bears
grasshoppers
mosquitoes
Part A Explain the reasons for the short growing season and analyze how that affects plant reproduction.
Part B Describe a characteristic of the tundra not given above. Explain how it affects the organisms living there.
Part C Describe one possible adaptation of one of the animals listed that enables it to live in the tundra. Explain your answer.
Part D If a medical doctor visited the tundra and claimed it contained more animal species than any other biome, do you consider the doctor's claim accurate or not? Give reasons for your answer.
She doesn't know the whole course because she was absent the day we were learning this so, she needs more help!! (My friend)
Nutrients are molecules that can be found in______
Answer:
food
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Proteins are involved in what type of cellular activities?
What are the reagents for Photosynthesis?
Answer:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Photosynthesis Reactants. The photosynthetic process requires several simple reactants. ...
Light-Dependent Process. ...
Light-Independent Process.
Explanation:
The emergence, growth, and extinction of a large clade, such as the dinosaurs, is an example of a Choose... pattern. This pattern includes Choose... extinction, which tends not to disturb ecosystems, as well as Choose... extinction, in which ecosystems change drastically.
Answer:
macroevolutionary; background; mass
Explanation:
Macroevolution is defined as the evolutionary process of higher taxa (above the species level). Macroevolutionary patterns include stasis (lack of evolutionary change over a long period), speciation (diversification), lineage character change (modification of major features/traits), and extinction (termination of a species or taxon). Moreover, background extinction refers to the extinction of individual taxon/species due to environmental factors (e.g., climate change, disease, habitat loss, competition, etc), which account for the majority of all extinctions. Conversely, mass extinction refers to the time period in which a major proportion of all known species (about three-quarters or even more of all species) living at the time goes extinct.
Determine the value of xin this polygon.
(6x + 3)º
(x + 12.5)°
(2x + 8)
Answer:
x= 17.3889⁰
Explanation:
6x+ 3+ x+12.5+2x+8
6x+x+2x= 9x
3+12.5+8=23.5
9x+23.5=180
180-23.5= 156.5
9x=156.5
17.3889
ans= 17.3889⁰
what is the only predator left for humans how are they different from us reproductively?
Human do not have any natural predators but may be occasionally killed by lions and tigers.
What are predators?Predators are animals which hunt and kill other animals for their food.
Humans have no natural predators as humans are at the top level of intelligence and development in the animal kingdom.
However, in some instances, humans may be killed for food by large carnivores such as lions, leopards and tigers.
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The overall population of a species has increased. What could have occurred to allow this to happen?
The emigration rate is greater than the death rate.
The death rate of the population is greater than the immigration.
The birth rate of the population is less than the death rate.
The immigration of the population is greater than the emigration.
Answer:
its D
Explanation:
Answer:
d. the immigration of the population is greater than the emigration.
Explanation:
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Plant stems grow up from the ground. This is an example of ____
positive thigmotropism
positive hydrotropism
negative gravitropism
negative phototropism
Answer:
3rd one (gravitropism)
Answer:
Negative Gravitropism
Explanation:
Negative Gravitropism is the process of a plant growing upwards against gravity.
Which is NOT true about genetic disorders? A. Genetic disorders can be treated. B. Genetic disorders are curable. C. Gene therapy is an area study that could eventually fix the disorders. D. Medicines and physical therapies can help the symptoms.
The statement which is not true about genetic disorders is that genetic disorders are curable.
What are genetic disorders ?A genetic disorder is a disease that is caused by a change, or mutation, in an individual's DNA sequence.
Many genetic disorders result from gene changes that are present in essentially every cell in the body. As a result, these disorders often affect many body systems, and most cannot be cured. However, approaches may be available to treat or manage some of the associated signs and symptoms.
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Explain how vaccinating chickens reduces the number of cases of salmonella
food poisoning.
Answer:
https://youtu.be/wmQMBJ_ce3k see this video
a sodium atom that has lost an electron comes near a chlorine atom that has gained an electron. what happens
Answer: The bonds which are produced between a metal ion and a non-metal ion are termed as ionic bonds. To become stable, sodium donates its electron to the chlorine atom and hence ionic bond is formed between them.
Explanation:
Answer:
a
Explanation:
Can blood be both red or blue?
Answer:
Blood does change color somewhat as oxygen is absorbed and replenished. But it doesn't change from red to blue. It changes from red to dark red. It is true that veins, which are sometimes visible through the skin, may look bluish.
Explanation:
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Question 13 of 35
A student creates a model of the solar system and uses a
bright flashlight to represent the Sun and a globe to
represent Earth. Shining the flashlight on the equator
produces a brighter spot than shining the flashlight at the
poles from the same position. The spot produced from
shining the flashlight at the poles is also spread out over a
greater area.
What does this model demonstrate?
A. Earth's tilted axis causes it to be lit evenly throughout the year.
O O O
B. Earth's tilted axis causes it to absorb more energy from sunlight.
C. Earth's curved shape causes it to be lit unevenly by the Sun.
D. Earth's curved shape causes it to absorb more energy from
sunlight
Answer:
The answer is C. Here is proof. It's correct trust me!!
Explanation:
Answer:
C
Explanation:
AP3X APPROVED
Which of the following is NOT a base found in DNA?
A. Thymine
B. Guanine
C. Adenine
D. Uracil
what are the differences between anaerobic respiration and photosynthesis
Answer:
Aerobic respiration produces energy whereas the photosynthesis is the process for trapping energy.
Which proportion of the universe's galaxies can be seen from Earth?
A. far less than 1 percent
B. nearly half
C. approximately 25 percent
D. approximately 10 percent
Answer:
Which proportion of the universe's galaxies can be seen from Earth?
Explanation:
A. far less than 1 percent
B. nearly half
C. approximately 25 percent
D. approximately 10 percent
the answer is D approximatley 10 % percentThe proportion of the universe's galaxies which can be seen from planet Earth is: D. approximately 10 percent.
A galaxy can be defined as a collection (group) of many billions of stars, that are existing independently or by themselves.
Generally, the greatest or largest number of stars are found in a galaxy.
However, it is only a small fraction of the universe's galaxies that can be seen from planet Earth, even though it contains many billions of stars.
The stars, galaxies and planets which can be seen which can be seen from planet Earth makes only 4 percent of the universe according to space researchers, referred to as astronomers.
In conclusion, the proportion of the universe's galaxies which can be seen from planet Earth is approximately 10 percent.
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How can the carrying capacity of an ecosystem change?
Answer: Carrying capacity can be decreased by disease, an increase in predation, hunting or harvesting by humans, a decrease in available habitat such as habitat destruction by humans, parasites, competition with another species for a resource, or changes in the weather that make the species less suited to the environment.
Explanation:
How does fuligo septica move?
can someone please help me with these
Answer: 1. Also known as stolons, runners are modified stems that, unlike rhizomes, grow from existing stems just below the soil surface. As they are propagated, the buds on the modified stems produce roots and stems. Those buds are more separated than the ones found on the rhizome. 2. Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. ... The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. 3. the population can increase rapidly when the conditions are favourable.
only one parent is needed.
it is more time and energy efficient as you don't need a mate.
it is faster than sexual reproduction. Organisms do not need to find a partner, this saves time and energy. Because the offspring inherit a unique combination of genetic information they are all different. 4. In mitosis, motor proteins carry chromosomes or other microtubules as they walk. Telophase. The spindle disappears, a nuclear membrane re-forms around each set of chromosomes, and a nucleolus reappears in each new nucleus. The chromosomes also start to decondense. Mitosis is the process in which the nucleus of a eukaryotic cell divides. During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase. 5. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. 6. Organisms can repair some of their tissues, using mitosis to regenerate new cells. Damaged skin, for example, constantly repairs itself through the production of new skin cells or scar tissue. Some organisms can even use mitosis to regenerate entire body parts. brainliest??
Explanation: