Answer:
natural selection :)
Explanation:
Help me out please I would appreciate it
Answer: go for b
Explanation:
makes sense
HELP PLS DUE IN 30MIN WILL MARK BRAINLIEST
Discuss John Dalton and explain why he was so important. What was his contribution to atomic theory? Why was his contribution so important to the concept of atomic theory? (3 Paragraphs)
Which type of succession (primary or secondary) is going to have the biggest impact on an ecosystem?
Answer:
Secondary succesion because secondary succession follows a major disturbance, such as a fire or a flood.
Answer: The secondary succession is going to have the biggest impact
Explanation:
The granite was helpful in helping the team find the lowest gravity spot because of its low
Answer:
BMI
Explanation:
Yaas
Based on the dichotomous key, what type of tree did this leaf come from?
Horse chestnut
Ginkgo
Honey Locust
Black maple
Answer:
I would say ginkgo
Explanation:
I WILL GIVE BRAINLIEST IF ANSWER IS CORRECT! Hurry I cant leave this exam!
Which of the following most likely happens when we exercise?
The heart rate slows down because the blood vessels have less blood to circulate.
The heart rate slows down because the blood vessels have more blood to circulate.
The heart pumps faster so that the blood vessels can carry more oxygen to some cells.
The heart pumps faster so that the blood vessels can carry more carbon dioxide to some cells.
(NO LINKS) Jami is doing an experiment to find out how temperature slows down or speeds up the sprouting of bean seeds. To prepare for the experiment, she plans to put soil into three cups and place six seeds in each cup.
When Jami performs the experiment, which of the following should she keep the same for all of the cups of beans?
since she is putting 6 cups in each then that is what she will keep the same for all of the cups. 6 in each cup is the same
how can you explain what you know about the heavily muscled cows with what you have learned about mutations, patterns of inheritance, incomplete dominance, sexaul reproduction, selective breeding and transferring of genetic information?
Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.
The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps
Brainliest Compare and contrast fibrous, tap, and water root systems.
Answer:
Taproot is a root system where roots develop from a single nodule.these are usually deep rooted .thus the plant gets tightly anchored to the soil. Fiberous root is a system where first a single root develops and further roots develop from it.these are not deep rooted and the plant is not properly anchored to the soil
Pls hurry! its a important test
Answer:
Yea D sounds right........................
Label this illustration with the maximum electron capacity for each energy level:
The maximum electron capacity for each energy level is given by 2n^2.
According to the Bohr model of the atom, electrons are arranged in energy levels in an atom. The energy levels are arranged in increasing order as we go farther away from the nucleus.
The maximum electron capacity for each energy level is given by 2n^2. Hence, when;
n = 2, the maximum electron capacity is 2 electrons
n =2, the maximum electron capacity is 8 electrons
n=3, the maximum electron capacity is 18 electrons
n = 4, the maximum electron capacity is 32 electrons
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Which of these is not a principle of natural selection?
A. Organisms produce more offspring than can survive.
B. Some variations are helpful. Individuals with helpful variations survive and reproduce more than those without these variations.
C. The environment plays no role in adaptations
D. Over time, the offspring of individuals with helpful variations make up more of a population and eventually become a separate species.
Answer: I bleive that it is D Hope it helps
There is more biodiversity
Answer:
Would you like help with anything about biodiversity? I'd be glad to help! :D
Which of the following is an example of an active transport mechanism?
protein channel
sodium-potassium pump
potassium channel
facilitated diffusion
Answer:
sodium-potassium pump
Hey guys i need some good facts about mars and pluto and fast will give brailiest and five stars
The New Horizons spacecraft, which was launched in 2006 and flew by Pluto on July 14, 2015, taking a series of photographs and measurements.
Which is an anthropogenic cause of acid rain?a) methane from swamps and the oceans b) burning of wood and gasses producing carbon dioxide c) volcanic eruptions producing large amounts of sulfur dioxide d) combustion in automobiles producing nitrous oxides
Answer:
I’m pretty sure it’s d
Explanation:
the exhaust from cars, trucks, and buses releases nitrogen oxides and sulfur dioxide into the air. These pollutants cause acid rain
SPACE!
Describe each of the following.
a. Nebula-
b. Protostar-
c. Red Giant-
d. White Dwarf-
e. Red Super Giant-
f. Supernova-
g. Neutron Star-
h. Black Hole-
Answer:
Nebula: is an interstellar cloud of dust,hydrogen, helium and other ionized gases.
protostar: is a very young star that is still gathering mass from its parent molecural cioud.
Red Giant: is a luminous giant star of law or intermediate mass in late phase of stellar evolution.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
How are dermal tissues in plants and epithelial tissues in animals similar?
Choose the correct answer.
They offer protection.
They produce movement.
They function as a messaging system.
They support and connect parts of the organism.
Dermal tissues in plants and epithelial tissues in animals are similar is that they offer protection. The correct option is A.
What is epithelial tissues?The epithelium is a type of body tissue that forms the covering on all of your body's internal as well as external surfaces, lines body cavities and hollow organs, and is the chief tissue in glands.
The primary function of different tissues varies depending on their location and cell type. Stratified epithelium and goblet cells typically form protective barriers.
The plant epidermis, the outer layer of tissue that surrounds the primary body of vascular plants, is referred to as dermal tissue.
The roots, stems, leaves, flowers, fruits, and seeds are all included. The dermal layer lacks chloroplasts and is typically made up of a single layer of tightly packed cells.
Thus, the correct option is A.
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Need help on this question 50 POINTS WILL GET BRAINLYEST!!!!!!!!!!!!!!! this is 4 Scince.
What happens when a parking lot is built in a wetlands area?
Less precipitation occurs in the area because it has no place to be absorbed by the ground.
The wetlands area moves to a new location alongside the parking lot.
Runoff carrying pollutants, organic material and excess nutrients flows directly into lakes and rivers.
Rain percolates through the pavement into the ground below, causing cracks in the pavement.
Answer: the 3rd one
Explanation:
(NO LINKS) Nick hypothesizes that wax has a higher melting point than chocolate. How can Nick test his hypothesis?
A.
Measure the volume and weight of samples of wax and chocolate and calculate their densities.
B.
Heat equal masses of wax and chocolate and measure their temperatures when they start to melt.
C.
Use Mohs Hardness Scale to test how easily wax and chocolate can be scratched.
D.
Heat samples of wax and chocolate and use a stopwatch to time how long it takes until they start to melt.
Answer:
The answer is D
Explanation:
You can test whether the wax or the chocolate will melt faster in the same temperatures to prove Nick's hypthesis.
Hope this helps!
Since Finding Nemo came out in theaters, there has been an increased demand for pet clownfish. Now marine biologists are noticing that the sea anemone population is also decreasing. What can we do to help build up the sea anemone population? Explain why your solution would help
Answer:
there are plenty of things we can do to help build up the sea anemone population, but a few ways would be to either A) mate clownfish to reproduce, B) inform people the issue they're causing, or C) to ban clownfish buying/selling at stores.
pick whichever topic you like best!
Mutations that are not helpful usually __________________.
A. die with that generation
B. live longer and reproduce
C have an advantage
D. are caused by acquired characteristics
Reflect again on competitive relationships. What would happen if the factor became more abundant or unrestricted?
Answer:
If a factor became more abundant, there would still be competition, but there would be less. *See below for an explanation that makes a little more sense (No, I am not sending you a link)*
Explanation:
In every ecosystem, there is competition. The competition could be for mates, food, shelter... anything, really. However, when those resources become more prevalent, there still might be competition, but there would probably be less than before. Let's try an example: Imagine that we were about to endure an incredibly strong hurricane. If you have ever prepared for a hurricane, you would most likely understand that if you get to the stores too late, there most likely wouldn't be much to choose from. Everything would be cleared from the shelves. Now there is competition for resources such as food and water that we would need to spend several days without power and electricity. However, if the shelves were to restock and everything is replenished, there wouldn't need to be any fighting over toilet paper, right? The same happens with plants and animals. If there is a sudden abundance of resources, they no longer need to compete so aggressively. *You might also see an increase in population, too*
Sorry, I gave such a wordy answer. I just really, really, really want you to understand so you good grades. I hope you understand :) :) :)
If the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.
What is Competition?Competition may be defined as a type of species interaction that significantly affects both species negatively because both species here compete for the same resources. It is a type of negative-negative interaction.
According to the context of this question, if a factor or resource remarkably increases its abundant and became unrestricted, it will definitely lead to the process that increases the competition between two or more species. This is because it allows the organisms to move away from their original niches.
Therefore, if the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.
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Memories of a Memory
Have you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? Have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? If so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. New insights into human memory suggest human memories are really a mixture of many non-factual things.
First, memory is vague. Imagine your room at home or a classroom you see every day. Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."
Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.
Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.
With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? Was that really your father throwing rocks into the river with you when you were seven? The human brain may be quite remarkable indeed. When it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture.
Which line from the text most clearly explains the main idea of the final paragraph? (5 points)
Group of answer choices
With individual memories all jumbled up
It is hard to believe we ever know anything
The human brain may be quite remarkable indeed
We may want to start carrying video cameras
Answer:
I think it would be D
Sorry if its incorrect
Explanation:
All fossils form the same way. True or False
Answer:
False
Explanation:
Fossils are formed in different ways
have a good day ^^
SPACE! What is a main sequence star? What event causes a star to leave the main sequence?
Explanation:
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
List two ecosystems and their features. Make sure to list at least three features of each ecosystem.
There's two ecosystems. A Terrestrial Ecosystem and an Aquatic Ecosystem. Examples of terrestrial ecosystems include the tundra, taigas, temperate deciduous forests, tropical rainforests, grasslands, and deserts. Wetlands, rivers, lakes, and coastal estuaries are all aquatic ecosystems.
Here are six breeds of dogs and the various abilities based upon their preferred characteristics. Some traits were deemed more important than others, over time, producing the variety you see here.
Use this chart of information to aid in your decision making with the task below.
Answer:
f and c
Explanation:
Please help! Write a public service announcement that encourages people to protect ecosystems by maintaining biodiversity and conserving natural resources.
If you need any information, let me know.
Answer:
We should stop leaving plastic and trash on the ground and stop littering and leaving our stuff on the ground cause birds and other animals can get exteremly hurt we should also stop cutting trees down cause it is ruining heir homes and when the trees fall sqirells and chipmunks can get hurt the birds can fly away but that doesn't mean that they won't get hurt either.
Explanation:
giving brainiest
An area with a large population of valuable ocean organisms is called a(n) a. aquaculture. b. sustainable yield. c. fishery. d. neritic zone.
Answer:
the answer to that is A aquaculture
hope this helps pls give me brainless
Answer:
neritic zone
Explanation: