Answer:
Then there would be too much smaller fish and what ever else they eat.
Explanation:
When crossing over take places chromsomes
A.
Decrease in number
B. Produce new genes
C. mutate in the first division D. exchange segment of DNA
Answer: D
Explanation:
Crossing over refers to homologous chrosmomes exchanging DNA which creates variation of chromsoomes that are inheried by offspring.
Why does life grow when the flask is broken? HOMEWORK DUE TODAY I REALLY NEED HELP
After Mount St. Helens erupted, one side of the volcano was completely destroyed for 8 miles. The type of succession that occurred in this area is most likely
Answer:
Secondary Sucession.
Explanation:
13. How does the protein p53 act as a negative regulator?
Answer:
The major negative regulator of p53 is the Mdm2 proto-oncogene. Mdm2 is transcriptionally induced by p53, thus p53 triggers its own destruction through a negative feedback loop. This feedback loop leads to oscillations in the expression of both proteins following DNA damage.
Explanation:
3. How would the bat population influence the number of cactus fruit that develop?
!!!!!!!!!!!!!!!!!!!!!!!!!
As the months pass, the table shows that the number of bats also causes an increase in the number of cactus flowers and fruit.
The cactus fruit don't seem to form in large number until the cactus flowers are also going up more in number. This is because pollination is necessary to form the fruit.
Based on this information:
The more bats in the population, the more pollination takes place, and the more cactus fruit is available as a result.
However, if the bats hit carrying capacity, they will be at a population number that is now bad for the number of cactus fruit, since there won't be enough food to feed the population- as more bats eat more fruit, the cactus isn't able to keep up with growing enough fruit to feed the bats at carrying capacity.
Why are humans dependent on healthy ecosystems throughout the world?
Answer: Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. Significant direct human health impacts can occur if ecosystem services are no longer adequate to meet social needs.
Explanation:
Humans are dependent on healthy ecosystems as they provide resources, regulate climate, purify water, control diseases, offer recreational and cultural values, and drive economic activities.
For a number of reasons, functioning ecosystems are essential to human existence. supplying resources Healthy ecosystems offer vital resources like food, fresh water, clean air, and building supplies like fibre and wood. These materials provide for our basic necessities and are essential to our survival. Genetic and biological diversity: Numerous plant and animal species are supported by ecosystems, which increase biodiversity. Ecosystem stability is ensured by biodiversity, which also increases resilience to environmental changes and offers genetic diversity. The creation of novel foods, medicines, and other useful goods depends on this diversity.
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PLEASE HELP (50 POINTS)
Choose 1-3 activities that you perform regularly and explain the role(s) that each organ system plays in each activity, as well as explain how organ systems work together to perform the chosen activities.
Examples of activities students might choose:
• Arts (drawing/painting, dance or music performance, acting)
• Athletics (exercises/workout routines, sports)
• Food/Culinary-related (cooking, eating different cuisines)
• Other hobbies (video games/TV)
• Other student choices?
Connections with your chosen activities may be:
• Direct – How are your chosen activities directly controlled/performed by different organ systems and processes in the body?
• Analogies – How are your chosen activities similar/analogous to different organ systems and processes in the body?
Athletics would be the easiest choice here
Sports are an active that takes up a lot of different organ systems. When running I use my muscular system and cardiovascular system the most. The cardiovascular system directly controls running because it helps prevent me from getting tired and worn out faster.
Hope this helps :)
ill give brainly please answer asap
Which of the following is the newest and most accurate form of evidence for common ancestry
DNA molecular
Fossils
Please Help me (About Energy)
who is this Justin Bieber??!
What main hormone that is released by the female ovaries is?
A. Estrogen
B. Eggs
C. Oxytocin
D. Testosterone
Answer:A
Explanation:
In cats, long tails are dominant over short tails. Cross one heterozygous
long-tailed cat with a short-tailed cat.
What is the chance there will be a short-tailed cat born?
75
25
50
О
Answer:
I think the chance will be 50 for short tailed cat
how would the solar eclipse be different if the moon was moved AWAY from the earth?
Answer:
The Sun is completely blocked in a solar eclipse because the Moon passes between Earth and the Sun. Even though the Moon is much smaller than the Sun, because it is just the right distance away from Earth, the Moon can fully blocks the Sun’s light from Earth’s perspective. Sometimes the Moon is far enough away that it doesn't create a total solar eclipse. However, once the Moon's growing orbit takes it approximately 14,600 miles (23,500 km) farther away from Earth, it will always be too far away to completely cover the Sun. That won't happen for a long time though.
Explanation:
https://spaceplace.nasa.gov/total-solar-eclipse/en/
what stage of mitosis does the nuclear membrane disapear
Answer:
La transición de interfase a mitosis es la profase. En esta etapa ocurren los siguientes eventos: la cromatina se condensa para formar cromosomas, se forma el huso mitótico y desaparece la envoltura nuclear.
Explanation:
Al final de la profase (profase tardía) desaparece la membrana nuclear quedando los cromosomas dispersos en el citoplasma.
In bunnies long ears are dominant over short ears. If two heterozygous bunnies are crossed, what is the probability their offspring will have the long ear phenotype? 1. 25% 2. 50% 3. 75% 4. 100%
Answer: 75%
Explanation:
See my picture for my work. Use a punnett square.
Answer: 75%
Explanation:
Heterozygous means that one allele would be dominant, and the other would be recessive. I will use B for the dominant allele, and b for the recessive allele.
Next, create a Punnett square (look at the pic).
To make the Punnett square, draw a 2 × 2 table. Put Bb on the top (one over each column) and Bb on the left side (one next to each row). Cross multiply. Remember to always put the dominant allele (in this case, B) in front of the recessive allele (in this case, b). The dominant allele will always be exhibited in the organism. So, the answer is 75%, since 3/4 of the different combinations of alleles is long ears.
what does hertzsprung-russell diagram display?
A.the distance between Earth and other stars.
B.who discovered each star.
C.temperature and luminosity of may stars
PLEASE HELP!! Much appreciated!
Answer:
The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
Explanation:
In this diagram of the water cycle, what process is represented by letter A?
oft
B)
evaporation
condensation
D)
precipitation
Answer:
Precipitation
Explanation:
Precipitation is water vapor that falls from the clouds.
What is the difference between natural selection and selective breeding? Then, give examples of natural selection and selective breeding?
Natural Selection is when traits are "naturally" selected for, because "survival of the fitttest." Example would be a species becoming bigger over time, because the smaller animals of that species were more likely to be eaten by predators. Natural selection is when the "best" trats are passed down due to chance
Selective breeding is if an outside forece (like a dog breeder) "chooses" a triat to be passed down. Example, instead of breeding a brown dog with a white dog, the breeder breeds two black dogs together in orer for the litter to all have black fur
DNA replicates in the
nucleus cytoplasm
endoplasmic reticulum
cell membrane
where does it replicate?
Answer:
Nucleus
DNA replication happens in the nucleus of human cells. It will also take place within mitochondrial matrix.
Explanation:
DNA replication occurs during the S-stage of interphase. DNA replication (DNA amplification) can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to start DNA synthesis at known sequences in a template DNA molecule.
About:
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part for biological inheritance.
DNA replication takes place in the nucleus of the cell. Thus, the correct option for this question is A.
What is DNA replication?DNA replication may be defined as the process through which the genomic DNA successfully gets copied into cells during the mechanism of cell division. It is a process of creating two identical replicas of DNA from one original DNA molecule.
According to the context of this question, the process of DNA replication takes place during the S-phase of interphase. During this phase, the amont of genetic content doubles in the cell which is then separated into daughter cells equally followed by cytokinesis.
Therefore, DNA replication takes place in the nucleus of the cell. Thus, the correct option for this question is A.
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What type mutation are most harmful to an organism
Answer:
type 1
Explanation:
Because an insertion or deletion results in a frame-shift that changes the reading of subsequent codons and, therefore, alters the entire amino acid sequence that follows the mutation, insertions and deletions are usually more harmful than a substitution in which only a single amino acid is altered.
Bacteria use sugar provided by legumes to produce nitrogen-containing compounds. An
example would be
Answer:
Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella. As previously noted, these organisms must find their own source of energy, typically by oxidizing organic molecules released by other organisms or from decomposition.
Explanation:
PLEASE HELP! i inserted a pic will give brainliest if right
Imagine that you are hiking and discover an outcrop of sedimentary rock. The rock is arranged in three distinct layers that appear to be undisturbed. When you examine the layers more closely, you observe fossils in the bottom and middle layers. What inferences can you make about these fossils based upon your observations and your knowledge of the law of superposition?
Answer:
The age of fossils are in millions.
Explanation:
These fossils were present on the earth millions of years ago due to different and unique structure of the fossil. The fossil is present in the bottom of the middle layer indicates that the more age of fossil i.e. millions of years according to the law of superposition. This law states that in an undisturbed layers of rocks, the top layer is the younger layer than middle and bottom layers which is older than the top layer, so we can say that fossils from deeper layers are older than fossils from the top layers of rocks.
Environmentalists are monitoring an area of tropical forest that is being
deforested because of human activities. The graph here shows the scientists'
predictions based on the data they have collected.
Tropical Forest Deforestation
100
100
80
80
70
60
53
Percentage of
Trees Remaining
40
20
10
0
2010
2015
2020
2025
2030
2035
Year
How is the ecosystem likely to change as a result? Select the two correct
answers.
Answer:
its 100
Explanation:
The ecosystem is likely to change as a result of Loss of habitat and Decrease in biodiversity. The correct options are C and D.
What is the meaning of ecosystem?It is biological system is a geographical region in which plants, animals, and other organic entities, as well as climate and environment, work together to form an air pocket of life.
As a result of deforestation, the ecosystem is likely to change in the following ways:
Loss of habitat: Deforestation is the destruction of forests, which results in the extinction of many forest-dwelling species.Reduced biodiversity: Deforestation reduces biodiversity in the ecosystem because many forest species are unable to adapt to the new conditions and may become extinct.Thus, the correct options are C and D.
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Please do all for 50 points,
please.
I am quite simple you can see. There is no nucleus inside of me.
A heater provides heat to an area, but the temperature in the area stays about the same. What do you already know about this phenomena?
ANSWER: IT'S CALLED THE ZEROTH LAW OF THERMODYNAMICS
EXPLANATION:
The zeroth law of thermodynamics state that there's no heat transferred between two objects in thermal equilibrium (i.e having the same temperature). This phenomenon depicts that there's balance in the amount of temperature in all the three entities.
This phenomenon was credited to Sir Ralph Howard Fowler, a British physicist and astronomer during his lifetime.
A scientific paper by Carathéodory also added that when two systems S1 and S2 are made to reach equilibrium with a third system S3 under close thermal conditions, systems S1 and S2 are said to be in mutual equilibrium.
Which of the following is NOT true about homeostasis?
A - Maintaining homeostasis requires that all body systems work together.
B - Long periods of stress can disrupt homeostasis.
C - Body temperature is a factor of homeostasis.
D - Only the nervous and endocrine systems are involved in maintaining homeostasis.
is it close to the end of the world
Answer:
i think so because of co
vid-19
Answer:
Yes it is. I know this because it talks about the last day's in the bible.
"But know this, that in the last days critical times hard to deal with will be here. For men will be lovers of themselves, lovers of money, boastful, haughty, blasphemers, disobedient to parents, unthankful, disloyal, having no natural affection, not open to any agreement, slanderers, without self-control, fierce, without love of goodness, betrayers, headstrong, puffed up with pride, lovers of pleasures rather than lovers of God, having an appearance of godliness but proving false to its power; and from these turn away."
-2 Timothy 3:1-5
Explanation:
Which action has the most harmful impact on the environment?
A. Reusing a steel water bottle at a water fountain
B. Buying a new plastic water bottle and throwing it away
C. Drinking directly from a water fountain or from a sink
D. Using a disposable paper cup to get water from your sink
Buying a new plastic water bottle and throwing it away has the most harmful impact on the environment. Thus, the correct option is B.
What is BPA?Hard plastics, such drinking water bottles and numerous home objects, contain the chemical BPA. According to research, BPA exposure can cause the endocrine system to malfunction. However, the average person's daily exposure levels are unlikely to cause substantial harm.
Using non-BPA-free water bottles and failing to properly dispose of them in a trash can would be the activity that would have the most detrimental effects on the environment.
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