Answer:
- Fossil record
- Geography
- Embryology
- Comparative anatomy
Explanation:
The four types of evidence for evolution upon which Darwin based his ideas were:
1-The geographic distribution of related species. The theory of evolution states that species evolve in geographic areas that were colonized by their ancestors.
2-The fossil record shows successions of organisms through time
3-Embryology: animal embryos in related species are very similar in the early stages of development but differentiate as they grow, thereby suggesting these species evolved from a common ancestor.
4-Comparative anatomy demonstrates physical and structural similarities between species. The species share anatomical similarities because they descend from a common ancestor (i.e., presence of homologies).
Evolution by Darwin was based on the development of the species from the ancestors. The evidence for evolution are fossils, geography, anatomy, and embryology.
What are the pieces of evidence of evolution?The Darwin theory was based on the evolution of the species from their ancestors. The time period has resulted in the change in the features that are based on natural selection.
The evidence for evolution proposed by Darwin is fossil records, comparative anatomy between the species, geographical changes in the species relation, and the embryonic similarities with the evolution.
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A person sees a ball and kicks it, in part because of actions of the nervous system. Using the parts of the nervous system listed, describe the path of nerve impulses that cause the person to (1) see the ball and (2) kick the ball.
Answer:
In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:
Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.
PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.
Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles
The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950.
Answer: Some of the previously warm regions became colder from 1650 to 1700
Explanation: I got it right on the test
According to the graph, the number of sunspots decreased from 1650 to 1700. That means the correct option is A.
What is a sunspot?The areas of the sun where the magnetic field of the sun is 2500 times more than the Earth. In these areas, the magnetic field is more than anywhere else on the surface of the sun.
Near the area of a sunspot, there is a small amount of energy output from the sun. UV rays from the sun also increase at a high sunspot activity. This increase in UV radiation causes dramatic effects on the atmosphere of the Earth.
The more number sunspots are observed, the more energy will be delivered to the earth. This increase in the energy delivered to the earth would result in an increase in the overall global temperature.
According to the graph, the number of sunspots observed decreased from 40 to 5 and increased slightly from 5 to 10 from 1610 to 1700. So, the statement says that some of the warm regions would become colder from 1650 to 1700.
Therefore, the correct option is A.
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- Recently living organisms have been reclassified into three domains. A new living
object has been found. It is multicellular, and can make its own food by using the sun.
The cells have a cell wall, and they have a nucleus.
Which of the following could it be classified as?
A.animalia
B.plantae
C.fungi
D.protista
HELP ASAP!!!
What concept does Hubble's Law most concern?
A. energy lost over time across the universe
B. growing distance between galaxies
C. how stars recycle energy and matter
D. how the universe will eventually end
Hubble's Law most concern with growing distance between galaxies. Thus option B is correct.
What is Hubble's Law ?Hubble’s law refers to the observation in physical cosmology where the movement of galaxies from the Earth at a speed that are proportional to their distance.
The velocity of the galaxy which is called as the redshift.
This laws study physical cosmology and is also known as Hubble-Lemaitre law.
After measuring recession velocity one can determine the distance of the galaxy from us by using Hubble’s equation.
Some limitations are; due to intrinsic motion of galaxies, observed velocity gets influenced and Galaxy orbit due to gravitational movements.
Hubble constant is another unit of measurement, which is used for description of the expansion of the universe. It is 160 km/s per million-light-years.
Thus option B is correct.
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How does the integumentary and immune systems work together?
*summary and not too detailed*
BIOLOGY QUESTIONS PLEASE HELP!!!!!!! Brainliest to whoever answers all of them
Answer:
segmented
Explanation:
trust me. thank me later
Answer:
pretty sure you have the answer by now so thanks for the Points
Explanation:
Explanation:
Please help I’m limited in time and have so many questions!!
What makes an organism more likely to survive and do well in its environment?
1. Stabilizing selection
2. Vibration
3. Artificial selection
4. Adaptation
Answer:
Adaptation because they are traits that increases an organism's ability to survive and reproduce.
Brainliest involved:)) help pls
2 differences between animal and plant cells
Answer:
Plants cells have cell walls and they also have chloroplasts (animal cells don’t have either of these)
Explanation:
The cell wall helps to maintain a rigid structure
The chloroplasts helps in the process of photosynthesis
Choose the items that complete the sentence about the key features of f(x) = 8x. The y-intercept is Choose... , the asymptote is y = Choose... , and the range is y > Choose... .
Answer:
I suppose that the equation is:
f(x) = 8/x
(You wrote 8x, this is a linear function, so it has no asymptotes, then I assume that the actual function was 8/x)
The y-intercept is the value such that f(x) = 0
Notice that there is no value of x such that 8/x = 0 (if the numerator is never zero, then the quotient can't be zero)
So we do not have an y-intercept.
The asymptote:
Here we have four:
if x tends to zero from the negative side, then:
8/x tends to negative infinity.
if x tends to zero from the positive side, then:
8/x tends to positive infinity.
These two asymptotes can be written as:
[tex]\lim_{n \to \_-0} \frac{8}{x} = -\infty\\ \lim_{n \to \_+0} \frac{8}{x} = +\infty[/tex]
We also have two when x tends to plus infinity (and 8/x goes to zero) and when x tends to negative infinity, such that the function tends to zero again, these two can be written as:
[tex]\lim_{n \to \infty} \frac{8}{x} = 0\\ \lim_{n \to -\infty} \frac{8}{x} = 0[/tex]
Finally, the range:
The only value that y never reaches (only on limits) is:
y = 0
Then the range is the set of all real numbers except the zero, or:
R : { x ∈ R / {0} }
b. Earth's thermohaline circulation moves heat around the planet, as can be seen by the warmer
climate in England due to the Gulf Stream. (2 points)
True or false ?
Farley often treats patients with medical products that come from nature. He also performs acupuncture, the art of using needles to restore the flow of energy.
Which career would Farley most likely have?
A: Naturopathic Physician
B: Nurse Practitioner
C: Home Health Aide
D: Pediatrician
Please Help!!
Answer:
A
Explanation:
search up what a is, trust me, it will make sense for you to click A after this.
The career would Farley most likely have Naturopathic Physician. Therefore, option A is correct.
What is Naturopathic Physician ?The same fundamental sciences that are taught to conventional medical doctors' students are also taught to naturopathic physician who attend naturopathic medical colleges. In order to get licensed, they must also pass a professional board exam, however they are not regarded as medical doctors.
Natural remedies are used in naturopathic medicine to support the body's ability to cure itself. Herbs, massage, acupuncture, exercise, and dietary advice are just a few of the techniques it embraces. Even though naturopathy was introduced to the United States from Germany in the 1800s, some of its practices date back hundreds of years.
Alternative medicine includes naturopathy, sometimes known as naturopathic medicine. Its physician, known as naturopaths, use a wide range of pseudoscientific techniques that are marketed as "natural," "non-invasive," or encouraging "self-healing."
Thus, option A is correct.
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7 points for each answer plus a brainliest (picture of the chart shown)
Sophia discovered two objects in space with the help of her telescope. She noted down the characteristics of the objects in the chart below.
Which of these statements is most likely correct about Object 1 and Object 2 discovered by Sophia?
A. Object 1 is an inner planet and Object 2 is a comet.
B. Object 2 is an inner planet and Object 1 is a comet.
C. Object 1 is an outer planet and Object 2 is an asteroid.
D. Object 2 is an outer planet and Object 1 is an asteroid.
Answer:
C. Object 1 is an outer planet and Object 2 is an asteroid.
Explanation:
While inner planets can have moons, many moons are a more common feature of outer planets (ex. Jupiter has 79 moons, while Mars has 2). Plus, moons don't orbit asteroids or comets since moons are usually larger. This rules out any of the options involving Object 1 being an inner planet, comet, or asteroid. As for object two, both an asteroid or a comet would make sense as they both have irregular shapes. The only answer that has Object 1 as an outer planet is C. Also Object 1 has rings, which shows that it's an outer planet.
Pesticide resistance is increasing, Farmers in the US tost 7% of their crops to pests in the 1940s, over the 1980s and 1990s, the loss
was 13%, despite more pesticides being used. It is estimated that 500-1000 pests have developed a resistance to pesticides. Consider
the diagram showing the evolution of pesticide resistance. Select ALL of the statements that do NOT accurately describe the
mechanisms of pesticide resistance shown in the graphic.
A)Insects that are sensitive to the pesticide all die out after the first
application, leaving only the resistant insects in the population,
B)When insects are exposed to the pesticide, some will develop a mutationmaking it resistant. Only these insects survive in the next generation
C)The first generation has an insect with a gene responsible for resistance toa pesticide. This allows it to survive the pesticide application and reproduce
D)The insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this
trait become more prominent in the population
E)As a population of insects is exposed to a pesticide, those susceptible to
the pesticide will die out of the population, leaving those with a resistance
to survive and reproduce, becoming more common in the population
The insect with the pesticide resistance gene reproduces, these insects are more likely to survive pesticide application hence insects with this trait become more prominent in the population
What is a pesticide?A pesticide refers to a chemical that is used to control the spread of pests in the farm.
The question is incomplete but I will help you the much I can. We know that organisms that have favorable traits live long enough to reproduce and pass on these favorable traits to the next generation. Therefore, the insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this trait become more prominent in the population
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BIOLOGY HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NO LINKS OR FILES>>>
Answer:
I NEED POINTS
Explanation:
I will just answer this.
Answer:
1. A. radial symmtery
2 A. completely lined with mesoderm
3 C. varying shapes of forelimbs
4. B. enables the members of the phylum to survive and reproduce.
5 B. deuterostome development
Explanation:
I hope this helped ;)
10 points each answer plus brainliest
A student explains the Nebular theory of formation of planets as follows.
"A cloud of gas and dust in space, called nebula, began to rotate and condensed into a flattened disk. Gravitational force pulled the gas and dust closer together. This resulted in the nuclear fusion of gases and dust to create the sun and planets at the outer flattened portion of the disk."
What is the flaw in the student's explanation? (1 point)
A. nuclear fission created the sun and planets
B. the nebula evaporated instead of condensing
C. the sun was formed at the center of the nebula
D. gravitational forces kept the gases well separated
Answer:
A
Explanation:
nuclear fission created the sun and planets the nebula evaporated instead of condensing the sun was formed at the center of the nebula gravitational forces kept the gases well separated.
Help on any of these would be very much appreciated
1. Circle the clade that includes both
amphibians and snakes.
2. What is something that all organisms in that
clade have in common?
3. What kingdom does this cladogram fit into?
4. Who are the lizards most closely related to
on this cladogram?
5. On the cladogram, star the organism that
has wings as a derived character.
Based on the given cladogram:
the clade that includes both amphibians and snakes is; turtles, snakes, lizard and crocodileall the organisms lay eggsthe cladogram belongs to kingdom animalializards are most closely related to snakesbirds have wings as a derived character What is a cladogram?A cladogram is a treelike diagram used to shoe relationship between organisms.
A cladogram is shown above.
Based on the given cladogram;
Turtles, snakes, lizard and crocodile are the amphibians and reptiles in the same cladeThe amphibians and reptiles reproduce by laying eggsthe cladogram contains organisms belonging to the kingdom animalializards and snakes are both reptiles, thus, are most closely-relatedbirds belong to the class aves and possess wings as a derived characterTherefore, the cladogram is of organisms that belong to kingdom animalia.
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Which of the following is NOT an example of a chemical reaction?
A)
Oxidation
B)
Decomposition
C) O Combustion
D)
Sublimation
Answer:
Sublimation
Explanation:
Sublimation is a physical change, not a reaction. There are five main types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion.
What natural object inspired the structure of a road reflector? O A Aball-and-socket joint B. A fish's swim bladder O c. A burr D. A cat's eye
ONLY SAY THE RIGHT ANSWER IF YOU DONT KNOW IT DONT ANSWER
Answer: a cats eye
Explanation:
How do the organ systems function together in the human body?
Answer: organ system work together to accomplish their task so the diffrerent organ systems also cooperate to keep the body runing
Explanation:
Which of the following is made of cells?
1. ocean water
2. glass bowl
3.oak tree
4. cement sidewalk
Explanation:
oak tree are plants and made up of plant cells.
Which two conditions do most seeds need in order to germinate?
A. Adequate sunlight
B. Enriched soil
C. Adequate water
D. Warm temperatures
Answer:
I believe it is a and c because plants need sunlight and water
Explanation:
The correct answer of the question about seed germination is that Adequate water and Enriched Soil are the two most important condition in order to germinate seed.
What do you mean seed germination?The fundamental process by which many plant species develop from a single seed into a plant is known as seed germination. This method has an impact on crop output and quality.The growth of a seedling from an angiosperm or gymnosperm seed is a frequent example of seed germination.Rapid water uptake by the seeds during the early stages of germination causes swelling and optimal temperature induced softening of the seed coat. Imbibition is the name given to this phase. Enzymes are activated to begin the growth process. The seed starts to create proteins, respire, and metabolise the food that has been stored after activating its internal physiology. This is the lag phase of seed germination.The seed coat bursts, allowing the radicle to emerge and develop into a main root. The seed begins to take up water from underground. After the radicle and plumule have emerged, the shoot begins to ascend.The seed cell lengthens, divides, and becomes metabolically active in the last stage of seed germination to produce the seedling.
Thus, we can conclude that after analysing and understanding the above given theory the best two realistic conditions in order to germinate good quality of seeds can be that Soil should be enriched and Adequate water supply should be there.
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I need Help with this.
Answer it for me plz
Two plants with an inated seed shape produced 340ospring. Of those 340, six ospring had a constricted pod shape. What are the genotypes of the parents?
Answer:
The genotype of both parents will be heterozygous for the trait, Ii.
Explanation:
Let us assume that the shape of the seeds is controlled by a single diallelic gene.
Dominant allele I expresses the inflated phenotypeRecessive allele i expresses the constricted phenotypeThe dominant phenotype is inflated seeds, expresses by genotype II and Ii. The dominant allele hides the expression of the recessive allele, so if the genotype has at least one dominant allele, the phenotype will be inflated. The recessive phenotype is constricted seeds, expressed by the genotype ii. In this genotype there is no dominant allele, so the recessive allele can be expressed.The individual with constricted seeds must have two recessive alleles i in its genotype ⇒ ii.
One of the i alleles was inherited from one of the parental plants, while the other parental plant provided the other i allele. So both parental plants must carry the recessive allele in their genotype.
We know that both parental plants have inflated seeds, which is the dominant phenotype.
So, if both parental plants have inflated seeds and also carry the recessive allele, then the parentals´ genotype must be heterozygous, Ii.
Both plants exhibit the dominant inflated phenotype but carry a recessive allele which will be provided to some of the descendants. These last individuals will have constricted seeds.
Variation in great horned owl body size due to food supply can / cannot be acted on by
natural selection.
Answer:
Variation can be acted on by natural selection.
Explanation:
Variation are the difference that exist in the organism in terms of the body size and can be acted upon by natural selection.
Natural selection could act on the owl body size, favor the selection of owl with small body size especially when resources available are limited and can only sustain small number of individuals leading to availability of owl with small body size in such area and a gradual reduction in the number of owl with large body size.
Which conclusion BEST describes the data in this table in reference to all life on Earth?
O Organisms have different proportions of bases in their DNA.
O Plants are least related genetically to other organisms on this table.
0 Animals have similar amounts of bases in their cells.
O The genetic code is exactly the same among all living organisms.
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Which describes an atom that has fewer neutrons than protons and more electrons than protons?
Answer:
An atom that has fewer neutrons than protons and more electrons than protons is an anion.
.ما مصدر الأكسجين المتفاعل مع سكر الجلوكوز
يأتي الأكسجين الذي تستخدمه الحيوانات للتنفس الخلوي من النباتات وكائنات التمثيل الضوئي الأخرى. متفاعلات التنفس الخلوي في الحيوانات هي نتاج تلك الموجودة في النباتات ، لذلك كل شيء يعمل بشكل جيد.
(أنا لا أتحدث العربية ، لقد استخدمت ترجمة جوجل لذلك أعتذر عن أي أخطاء)
A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?
As per the given scenario, the number of small predators will decrease and the number of herbivores will increase. The correct option is C.
A reduction in the pressure of large predators on herbivores would follow from their disappearance.
Since there would be less threats to them from predators, the population of herbivores would probably rise.
The effect would be a reduction in the population of tiny predators, which may have previously depended on the huge predators as a food source.
As a result of this adjustment, the ecosystem's small predator population would decline while the population of herbivores would expand.
Thus, the correct option is C.
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Your question seems incomplete, the probable complete question is:
A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?
A.
The number of herbivores will decrease and the number of producers will increase.
B.
The number of herbivores will increase and the number of producers will decrease.
C.
The number of small predators will decrease and the number of herbivores will increase.
D.
The number of small predators will decrease and the number of omnivores will decrease.
Elements of xylem in a vascular bundle are lesser than those of phloem؟
Answer:
No.
Explanation:
No, elements of xylem in a vascular bundle are not lesser than those of phloem because of the division of xylem progenitor cells that increases the xylem concentration in vascular bundle. The vascular cambium forms more xylem tissue than phloem due to more division of the xylem progenitor cells. so in the light of this discussion we can say that xylem is more in concentration than phloem in a vascular bundle.