Answer:
1km/hr every 1.5 minutes
Explanation:
The acceleration is 40 km/hr²
The initial velocity of the car is= 35km/hr
The Final velocity of the car is = 45km/hr
The Time taken by the car is = 0.25
Acceleration= velocity/time
= 45-35/0.25
= 10/0.25
= 40
Acceleration is 40 km/hr²
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Which of the following best describes two identical copies of chromosomes made during S phase?
A:Cytokinesis
B:Sister chromatid
C:Spindle fiber
D:Centromere
How do bones heal after a certain period of time. I'm giving away points
Answer:
Explanation: Well, In the first few days after a fracture/breakage in the bone, the body forms a blood clot around the broken bone to protect it and deliver the cells needed for healing. Then, an area of healing tissue forms around the broken bone. This is called a callus, (It joins the broken bones together)
2.2
Study the diagram of enzyme action and answer the questions that follow.
2.2.1 Provide labels for the parts N, O and P.
2.2.2 What property of enzymes is illustrated in the above diagram?
2.2.3
List TWO properties of enzymes other than the one mentioned in
QUESTION 2.2.2.
Answer:
2.2.1 O is the enzyme and N is the ligand.
2.2.2 In the figure, the enzyme shows lytic activity by generating two products like digestive enzymes.
2.2.3 Enzymes are indispensable for signal transduction and cell regulation, often via kinases and phosphatases. They also generate movement, with myosin hydrolyzing ATP to generate muscle contraction.
Select the 4 choices below which relate only to sedimentary rocks.
Granite
Fossils
Gneiss
Limestone
Weathering and Deposition
Melting and Cooling
Magma
Sandstone
Answer:
fossil, limestone, sandstone, weathering and deposition
HELPPP ASAP !! how are different natural disasters related? what different causes and effects do you know about?
Please Help with both. Will make sure to Mark You Brainliest & Thank your comment.
Thank You. (:
Answer:
2nd 1 is because the letters are caps
1st 1 is more common
Explanation:
fossils are taken as the strongest evidence so far regarding the evolution of organisms. justify this statement
Answer:
No present empirical evidence supports the idea of that natural causes can result in an increase of complexity. The idea that descent with modification has happened in the past is supported by the fossil record. This makes the fossil record the strongest evidence for Darwin's theory of evolution
Explanation:
Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.
What are Fossils?A fossil is defined as the preserved remains, impression, or trace of a once-living thing from a past geological age, including bones, shells, exoskeletons, fossilized traces of animals or microbes, amber, hair, petrified wood, and DNA.
The totality of fossils is known as the fossil record. These are the preserved remains of plants and animals whose bodies were buried in sediments such as sand and mud at the bottom of ancient seas, lakes and rivers, including any preserved traces of life which are usually over 10 000 years old.
The different types of fossils include:
1. Petrified fossils
2. Mold and cast fossils
3. Carbon film fossils
4. Trace fossils
5. Reserved remains, etc.
Thus, Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.
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What is the main difference between Passive Diffusion and Active Transport?
A. Active uses protein channels
B. Passive goes from low to high concentration
C. Active always uses energy (ATP)
Answer:
B. Passive goes from low to high concentration
Explanation:
Hope this helps
what are the types of gametes
In certain organisms, like humans, there are two morphologically distinct types of gametes: (1) the male gamete (i.e. sperm cell) and (2) the female gamete (i.e. ovum). The male gamete is smaller in size and motile whereas the female gamete is several times bigger and non-motile. The haploid condition of the two gametes is essential so that at fertilization during sexual reproduction the integrity of the chromosomal number is maintained throughout generations.
Hope this helps.
Answer:
Examples of Gametes. The two most common gametes are sperm and ova. These two haploid cells can undergo internal or external fertilization and can differ from each other in size, form, and function. Some species produce both sperm and ova within the same organism
please answer this question
Need answer quick please thanks
Answer:
They inherited a recessive allele from both their parents
Explanation:
:)
Video: Earth Day Every Day
1
eText: Ecological Footprints
© In Progress
rth Day Every Day
What were some of the environmental problems that inspired Earth Day?
Oil spills, polluting factories and power plants, raw sewage, toxic dumps, pesticides, freeways, the loss of wilderness and the extinction of wildlife
A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland. What is the most likely effect of this?
Answer: An increase in gene flow between the bird populations.
Explanation:
The population of bird species living in the island and other one in mainland are geographically isolated because of the distance between the island and the mainland is large that does not allow birds to fly and cover the entire distance. This is the reason of reproductive isolation and restricts the gene flow between the two populations. But the creation of sandbars and tiny islands between the island and mainland created a way so that island and mainland birds can meet and reproduce. This will allow the increase in the gene flow between the two separated population of bird species.
Which statement is an accurate description of genes? A) Proteins are made of genes and code for DNA B) Genes are made of proteins that code for nitrogen bases C) DNA is made of carbohydrates that code for genes D)
Genes are made of DNA and code for proteins.
Answer: The correct option is D.
Genes are made of DNA and code for proteins.
Explanation:
This is because genes contain the genetic information needed for expression of characteristics in a living organisms. Therefore, genes contain DNA which is the genetic material. Genes are housed in chromosomes located in the loci.
DNA molecule forms a chromosome, and part of the same DNA molecule produce the genes on that is found in that chromosome. The information that is present in each gene codes the production of proteins and alsothe synthesis of RNA.
Identify the process in Model 2 that describes an artificial (purely human-caused) process that moves carbon.
if you transfer energy into two solid substances, which do you think would melt
first? A substance with stronger molecular attraction OR a substance with weaker
molecular attraction.
Answer:
probably a substance with a stronger molecular attraction
The five-carbon sugar in RNA is _____ whereas in DNA it is _____.
Answer:
The answers are Ribose, deoxyribose.
In nature, which would probably be more common? Exponential or logistic growth
patterns? Why, Explain your response including evidence sited from the exercises above, your understanding of r vs
k strategists, and carrying capacity.
Answer:
In nature, the logistic growth model is more common.
Because interaction between species and the environmental conditions needed for an exponential growth model are not always possible. In fact, they are hardly possible.
Explanation:
Exponential growth model: A population that exhibits an exponential growth model increases in proportion to its size. The increase in the population size depends on the individual´s reproduction rate: a population that grows at constant exponential rate gains individuals faster as the population increases in size.This model states that there is unlimited resource availability. As there are guaranteed resources and space, there is no competition. Population growth does not depend on density, nor Natality and mortality rate. There is constant growth, which is proportional to the population size. The exponential growth model is represented by an exponential curve.
In nature, this is almost impossible. Just a few organisms, such as bacteria species, might be represented by this model. But in most species, this is not feasible because available resources are not infinite, space is not infinite, and there is always an interaction between species that affects their population sizes.
Logistic growth model: The population density affects its growth. Natality and mortality depend on the population size, which means that there is no independence between population growth and population density.When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population's per capita growth rate decreases as population size increases. The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that coincides with the size of the population at the equilibrium point when the natality rate and the mortality rate get qual to each other.
The logistic growth model is represented by a sigmoid curve. In the beginning, the population grows slowly. Its size N is inferior to K.In the second stage, the population size increases rapidly but N, is still inferior to K. Gradually, the population reaches the equilibrium point, K, which depends on resource availability. N equals k. Resources become harder to find, and much of the living space is unavailable. Finally, when N is superior to K, the population must decrease in size because there are not enough resources to maintain that size.
Species have different strategies to survive in different environments, reproduce, disperse, and compete. These strategies are r strategies and k strategies.
"r" species: Their growth rate per capita is very high, which makes possible the colonization of new environments. These species are mostly small-sized organisms with short life cycles. They reach sexual maturity at early stages and have numerous offspring. They hardly spend energy in parental care. Many "r" species exhibit the exponential growth model, but not all of them.
"k" species: Their growth rate per capita is low. They are often big-sized and long-lasting species. They reach sexual maturity in advanced stages and do not have numerous offspring. They spend much time of their lives in parenting to ensure reproductive success. They are important competitors, being capable of displacing other species and monopolizing the available resources. "k" species exhibit the logistic growth model.
Help plz
Which statement best describes the flow of energy and the movement of chemical compounds in an ecosystem?
Energy flows out of living organisms and is lost, while chemical compounds remain permanently inside organisms.
Energy is transferred from organism to organism in a food chain, and chemical compounds are recycled
Energy flows into living organisms and remains there, while chemical compounds are transferred from organism to organism.
Chemical compounds flow in one direction in a food chain and energy is produced.
Answer:
This is because in biology, energy is transferred from organism to organism and some energy is lost along the way. Each energy transfer results in a loss of energy, so that energy is always at a lower level and can never be returned to its original high energy level. On the other hand, chemical elements can form products, then that reaction can be reversed and break back down into reactants. Additionally, the law of conservation of matter says that matter can't be created or destroyed, only transferred from one form to another.
Answer:
C
Explanation:
Energy flows while matter cycles
The figure below shows a food chain that might exist in a meadow.
Meadow Food Chain
Owl
Green plants Beetle
Toad
Snake
Which organism is the primary consumer in this food chain?
А
owl
B
toad
с
beetle
plant leaf
Help me please!!!! :((
1st diagram.
The up one is pointing on something blue its called Nucleus.
The one that is pointingvon some dots is called Ribosomes.
The one that is pointing on a big white space is called Large central vacuole.
The one that is pointing on oval green thing is called Chloroplast.
The one that is pointing on the oval orange thing is called Mitochondrion.
The one that pointing on the green line that is called Cell wall.
The name of the other diagram is nowhere in my mind i cant remember that name so if u know the name tell me i maybe i can help u with that one too.
Explain the structure and function of DNA.
Answer:
"the art of teaching is the art of assisting discovery"
Explanation:
How does a mouse obtain energy for everyday functions? How might this look different compared to how an own obtains energy?
Answer:
A mouse would obtain energy from plants that have vitamins and minerals, and protein from things like nuts. An owl would get protein from eating a mouse and vitamins and minerals from the things the mouse ate.
Explanation:
It's all one big circle. These nutrients would provide the energy needed to perform everyday tasks.
In the data table, record the
number (out of 10) and
percentage (out of 100%) of
each phenotype in the rows
"Simulated Number" and
"Simulated Percentages
respectively."
As predicted by the Punnett
square, (blank)
% of the
offspring have black fur for this
cross.
Answer:
Guy on top is correct. It is 100%
Explanation:
As predicted by the Punnett square, 100% of the offspring have black fur for this cross.
When two individuals with the genotype BB (homozygous dominant for black fur color) are crossed, their Punnett square will look like:
| B | B
--|----|----
B | BB | BB
--|----|----
B | BB | BB
All the offspring will have the genotype BB, which means they will be homozygous dominant for black fur color. Therefore, all the offspring will have black fur.
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In what ways does human population growth impact the populations of animal species?
A. human population growth has no effect on the number of animals
B. a decrease in human population growth causes a decrease in the number of animals
C. many animal extinctions have been related to human population growth in some way
D. a growing human population is related to growth in animal populations
Answer:
I think it's c
Explanation:
ummmm ... if there is a high population growth people will need a place to stay or settle so they can go cut down trees and by doing this they destroy habitants of some animal species leading them to extinction.
hope this helps
Summarize what causes an earthquake to occur.
Answer:
Tectonic plates moving
Explanation:
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A six-inch frog can jump over 100 feet. TRUE or FALSE?
Answer:
False
Explanation:
It depends on what species of frog it is though.
This is the question
Which of these is MOST descriptive of a compartmentalized cell?
What do all members of the swine species always have in common? They always have the same number and kinds of chromosomes. They are always preyed upon by the same predators. They always occupy the same habitat at the same time. They always occupy the same position in the food web no matter where they live.
Answer:
Members of the swine species always have the same number and kinds of chromosomes
Explanation:
The swine species always have their food habits in common. They are omnivorous and they also due to ancestry have the typical type of genes and chromosomes inscribed in it. Hence swine are used in research industry nowadays like dogs and monkeys.
Wild boars, hogs and pigs all have just small differences externally. Their anatomy and physiology are identical. They are all mammals. They are highly intelligent and talented ones. They have their physiology identical to ours which helps in research scientist to experiment and finds cure for human.
Answer:
biological definition of species, which works for sexually reproducing organisms, is a group of actual or potential interbreeding individuals. There are exceptions to this rule. Many species are similar enough that hybrid offspring are possible and may often occur in nature, but for the majority of species this rule generally holds. The presence in nature of hybrids between similar species suggests that they may have descended from a single interbreeding species, and the speciation process may not yet be completed.
Given the extraordinary diversity of life on the planet there must be mechanisms for speciation: the formation of two species from one original species. Darwin envisioned this process as a branching event and diagrammed the process in the only illustration found in On the Origin of Species (Figure 1a). Compare this illustration to the diagram of elephant evolution (Figure 1b), which shows that as one species changes over time, it branches to form more than one new species, repeatedly, as long as the population survives or until the organism becomes extinct.
Explanation:
For speciation to occur, two new populations must be formed from one original population and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed. Biologists have proposed mechanisms by which this could occur that fall into two broad categories. Allopatric speciation (allo– = “other”; –patric = “homeland”) involves geographic separation of populations from a parent species and subsequent evolution. Sympatric speciation (sym– = “same”; –patric = “homeland”) involves speciation occurring within a parent species remaining in one location.
Biologists think of speciation events as the splitting of one ancestral species into two descendant species. There is no reason why more than two species might not form at one time except that it is less likely and we can conceptualize multiple events as single splits occurring close in time.
Allopatric Speciation
A geographically continuous population has a gene pool that is relatively homogeneous. Gene flow, the movement of alleles across a species’ range, is relatively free because individuals can move and then mate with individuals in their new location. Thus, an allele’s frequency at one end of a distribution will be similar to the allele’s frequency at the other end. When populations become geographically discontinuous, it prevents alleles’ free-flow. When that separation lasts for a period of time, the two populations are able to evolve along different trajectories. Thus, their allele frequencies at numerous genetic loci gradually become increasingly different as new alleles independently arise by mutation in each population. Typically, environmental conditions, such as climate, resources, predators, and competitors for the two populations will differ causing natural selection to favor divergent adaptations in each group.