cirrostratus
I don't need an umbrella.
stratocumulus
I most likely need an umbrella.
cumulonimbus
I need to stay indoors!
i think this is how it goes hope this helps
Describe what a mutation is and how it can occur
Answer:
when a new creature is made due to the cause of chemicals i believe
Explanation:
Mutations can occur by the cause of natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens.
Short-term climate changes have been linked to changes in the number of _____.
continents
sunspots
solar storms
solar flares
Answer: I believe it's either continents or sunspots I could be wrong
Explanation:
The map shows the distribution of wild boars in the united states. wild boars are an invasive species to the united states
Wild boars have established successfully in areas with warm climates.
Answer is third choice
differences between virus and bacterium
Answer:
A virus attaches itself to cells and usually reprograms them to reproduce itself. Also, unlike bacteria, most viruses do cause disease. Some virus-caused diseases include the common cold, AIDS, herpes, and chickenpox
Explanation:
Answer:
A virus can not be cured, but it can be treated to be better.
A bacterium can be cured.
Explanation:
HOW DO I EXPLAIN THAT?!
Which is not a difference between a population showing exponential growth and a population showing logistic growth?
Answer:
Mutation rate is not a difference between a population showing exponential growth and a population showing logistic growth. Hope this helped :D
Can someone please answer my questions
Answer:
What question.
Explanation:
You have to write your question for it to be answered
How does a skate differ from a lamprey
Explanation:
Bases on the structure of their mouth and the type of the skeleton, scientists have divided the fish into 3 main categories:
Jawless FishCartilaginous FishBony FishLampreys:
Lampreys belong to the first category i.e. Jawless Fish.Lampryes are mostly parasites and feed on other fish by sucking their blood and tissues using their suction like mouth structures. Their body is not covered with scales and they do not have a pair of fins.Skates:
Skates belongs to the second category i.e. Cartilaginous Fishes. They have jaws and pair of fine unlike Lampreys (Jawless Fish)Their bodies are covered with scales. These are carnivores.Chargaff discovered that in DNA extracted from organisms, the amounts of guanine and cytosine are roughly the same, and the amounts of adenine and thymine are roughly the same. Why was this discovery important?
It acted as a catalyst towards the discovery of the double helix structure of DNA by Watson & Crick. It showed that G pairs C while A pairs with T as a rule. He also noticed that the percentages of G-C and A-T pairs differed between species hence this corroborated the understanding that DNA, rather than proteins, is the genetic material in cells.
Erwin Chargaff's discovery was immensely important because it led to the formulation of Chargaff's rules.
These rules state that in any given DNA sample, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of cytosine (C) is equal to the amount of guanine (G).
The significance of these findings lies in the fact that they provided a critical clue for the double-helix structure of DNA, which was later proposed by James Watson and Francis Crick.
Here is a step-by-step explanation of why Chargaff's discovery was important:
Discovery of Equal Quantities: Chargaff found that the quantities of A and T, and G and C, were always equal in the DNA of different organisms. This was a significant observation because it indicated a specific pairing mechanism.Formation of Complementary Base Pairing: The equal quantities led to the hypothesis that A pairs with T, and G pairs with C. This complementary base pairing is a cornerstone of the DNA structure.Foundation for the Double-Helix Model: These findings directly supported Watson and Crick's development of the double-helix model of DNA, illustrating how the bases pair to maintain the consistent helical structure.Consistency Across Species: Chargaff's rules also highlighted that while the overall ratios of A+T to G+C can vary across species, the equality of A with T and G with C is maintained, suggesting a universal structural principle in DNA.Which best describes a bacterium?
This question isn't really finished, but bacterium are unicellular prokaryote.
I hope this helps?.. :S
A planet has an average distance to the sun of 3.36 AU. In two or more complete sentences, explain how to calculate the the orbital period of the planet and calculate it.
Answer:
You can check this calculation by setting the masses to 1 Sun and 1 Earth, and the distance to 1 astronomical unit (AU), which is the distance between the Earth and the Sun. You will see an orbital period close to the familiar 1 year.
Explanation:
Answer:
The orbital period of the planet is 6.16 years.
Explanation:
A planet has an average distance to the sun of 3.36 AU i.e. a = 3.36 AU
[tex]1\ AU=1.496\times 10^{11}\ m[/tex]
or [tex]3.36\ AU=3.36\times 1.496\times 10^{11}\ m[/tex]
i.e. average distance, [tex]a=5.02\times 10^{11}\ m[/tex]
If we want to calculate the orbital period of the planet, it can be calculated using Kepler's third law as :
[tex]T^2\propto a^3[/tex]
[tex]T^2=\dfrac{4\pi^2}{GM}a^3[/tex]
Where
M = mass of sun
G = universal gravitational constant
[tex]T^2=\dfrac{4\pi^2}{6.67\times 10^{-11}\times 1.98\times 10^{30}}\times (5.02\times 10^{11})^3[/tex]
[tex]T=\sqrt{(3.78\times 10^{16})}[/tex]
T = 194422220.952 seconds
Since, [tex]1\ Year=3.2\times 10^7\ seconds[/tex]
So, T = 194422220.952 seconds = 6.16 years
Hence, the orbital period of the planet is 6.16 years.
What is a dominant trait ?
Answer:
(In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.
Explanation:
Answer:
Read the link below
Explanation:
Marcus is admitted to the hospital for a bone marrow stem cell transplant from his brother. What will happen after his brother’s stem cells are transplanted into Marcus?
Explanation:
The first part of the stem cell transplant process is called conditioning. During this time, you'll receive chemotherapy and/or radiation therapy to damage and possibly destroy your bone marrow. The stem cell transplant itself replaces the damaged bone marrow with healthy stem cells.
how old is the earth
Answer:
4.543 billion years
Explanation:
The Earth is around 4.6 billion years old. earth has a slightly squashed sphere, measuring 7,973 miles (12,756 km) in the diameter at the equator.
The graph shows how much it costs to feed enough dairy cattle to produce 100 pounds of milk in two different places which statement best explains the data
Answer:
A. New Zealand farmers have access to larger areas of pastureland.
Explanation:
What would best explain the difference in costs?
Let's examine each proposed answer and see if it makes sense:
A. New Zealand farmers have access to larger areas of pastureland.
Yes, makes sense. It's true that NZ farmers have access to more pastureland than those in California, since the population density is less in NZ than in California, and its more humid. That has as consequence that they need to purchase less grain for their cows.
B. Milk in California is more concentrated than milk in New Zealand.
Nope, even if California is dryer, the milk doesn't come out as dry milk.
C. Cows in New Zealand are more efficient at producing milk.
They might be a more efficient species of cows.... but that wouldn't explain such a large gap in costs.
D. New Zealand farmers feed their cattle more expensive grain.
If it was true, their costs would be higher than those in California... it's the opposite.
Thermal vents are found at the bottom of the ocean in the benthic zone.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
The thermal vents, or hydrothermal vents are basically fissures on the seafloor from which issues water that has been geothermally heated. The thermal vents appear at places where there's intense geological activity, such as the divergent zones, or the hotspots, where there's lot of hot magma rising up, managing to heat up the crust around it, and with the water in that crust as well, propelling it upward under high pressure. This occurs in the benthic zone. This zone of the bodies of water is the lowest, bottom part of the body water, starting from its coastline through the deepest parts, and ending at other coastline, practically covering the deepest layer at all points of the body of water.
Answer:
true
Explanation:
A key difference between green algae and land-based plants is that
Answer:
alge can be unicellular or multi-cellular
land based plants are multi-cellular
Explanation:
Answer:
Algae are a unicellular body found in water while land plants are the multicellular body.
Explanation:
Algae are aquatic organisms with the unicellular body that have the ability to perform photosynthesis. They are not differentiated in leaves, stems, and roots. They found generally underwater.
Land plants are multicellular differentiated into stem, leaves, and roots and connective tissue also found in them.
Thus, the key difference in algae and land plants is that the algae are unicellular while land plants are multicellular.
What is one condition that must be met for a population to be in genetic equilibrium?
A.
There is a high mutation rate.
B.
There is no genetic drift.
C.
There is a large amount of gene flow.
D.
There is nonrandom mating.
Answer:
B. There is no genetic drift.
Explanation:
For a population to be in genetic balance it is necessary that, in this population, no genetic drift occurs. This can be explained through the Hardy-Weinberg balance.
According to the Hardy-Weinberg balance, for a population to reach genetic equilibrium, it is necessary that mutations do not occur in this population, natural selection does not occur, does not occur, does not occur gene flow, occurs random crosses and no genetic drift occurs.
Genetic drift is a term used to describe a suture that causes a strong change in the genotype of a population, resulting in a low genetic variability among individuals that will have to undergo selection pressure.
How do organisms typically come to live on newly formed volcanic islands?
A.They appear there randomly due to abiogenesis in order to fill the empty niches present
B. Seeds or animals get blown over in storms or pushed over through the ocean tides
C.They evolve from volcanic archea and bacteria on the island over millions of years
D.They travel there to get the beneficial and nutrient rich volcanic soil
One important disadvantage of radiation treatment is that ___.
A. Radiation kills cancer cells
B. Radiation cannot be focused, the entire body must be treated
C. Radiation must be delivered through an implanted device
D. Radiation kills cancer cells and healthy cells
Answer:D
Explanation:
Answer:
D) Radiation kills cancer cells and healthy cells
Explanation:
help needed on both questions asap! 20 points
1. Adaptive radiation
The adaptive radiation is an evolutionary process in which rapid diversification occurs from a single ancestral species. The reasons for such rapid diversification, thus development of new physical traits, can occur from multiple reasons, such as sudden climate change, change in the food sources, or extinction of other species. Most often it is a response where there are numerous niches in the food chain opened up and free for taking, so the organisms develop new traits quickly in order to take over those niches.
2. It is dated from about 605-600 million years ago
The first multi-cellular organisms have appeared around 600 million years ago, at least from what is known so far from the fossils and the evidence of activities left from the organisms. They were very simple organisms, and the closest we can compare to in the present are the bacteria. In order for these multi-cellular organisms to develop, around 2.9 billion years where needed, as the first single-cellular organisms appeared around 3.5 billion years ago.
Answer:
1. Adaptive radiation
The adaptive radiation is an evolutionary process in which rapid diversification occurs from a single ancestral species. The reasons for such rapid diversification, thus development of new physical traits, can occur from multiple reasons, such as sudden climate change, change in the food sources, or extinction of other species. Most often it is a response where there are numerous niches in the food chain opened up and free for taking, so the organisms develop new traits quickly in order to take over those niches.
2. It is dated from about 605-600 million years ago
The first multi-cellular organisms have appeared around 600 million years ago, at least from what is known so far from the fossils and the evidence of activities left from the organisms. They were very simple organisms, and the closest we can compare to in the present are the bacteria. In order for these multi-cellular organisms to develop, around 2.9 billion years where needed, as the first single-cellular organisms appeared around 3.5 billion years ago
Plz help me with this I will mark brainliest
Answer:
2) cardiac muscle
3) Adipose
4) Epithelial tissue
5) connective
6) bone
7) Cartilage
8) blood
9) Skeletal muscle
10) nervous tissue
11) muscle tissue
Explanation:
Explanation:
1-
2-
3-
4-a
5-c
8-b
9
10-h
11-j
sorry i can't give you many more i did as best i could but they are correct
The lock-and-key mechanism refers to
the complementary shapes of an enzyme and a substrate.
the attractive forces between an enzyme and a substrate.
the ability of an enzyme to lower the activation energy of a reaction.
the ability of an enzyme to “unlock” the products of a reaction
Answer:
Option (1).
Explanation:
Enzymes are the bio catalyst that increases the rate of biochemical reactions of the body. Enzymes are highly specific in nature and works at optimum temperature and pH conditions.
The enzymes work according to the lock and key mechanism. This mechanism explains that the active of enzyme should fit into the substrate in such a way as the key fits into its lock. Hence, this determines the complementary shapes of the substrate and enzyme.
Thus, the correct answer is option (1).
Question 16 of 20:
Select the best answer for the question.
16. An amoeba moves by pushing out small projections called
rest of the organism along.
and then pulling the
O A. bacterial conjugates
O B. spores
O C. pellicles
O D. pseudopodia
Mark for review (Will be highlighted on the review page)
<< Previous Question
Next Question >>
Answer:
D. pseudopodia
Explanation:
The pseudopods are one of the modes of locomotion of unicellular organisms. The amoebas move forming a large pseudopod at the front of the cell, while the cytoplasm retracts from the back and repeats this process, or by extending and contracting several small pseudopods that, in contact with the substrate, allow displacement.
Answer:
Answer is D
Explanation:
I took the test
Can someone please help me!
Answer:
1. Ggbb- grey hair, red eyes ggBB- white hair, black eyes ggbb- white hair, red eyes GgBb- grey hair, black eyes
Explanation:
I don't know the rest but that's #1... sorry. That's as much as I can help you :(
(!!FIRST TO ANSWER GETS BRAINLIEST PLEASE HELP!!))
1. A good way for a lizard to conserve its body heat in cold, windy weather would be to
A. Retreat to an underground burrow.
B. bask in the sun on an exposed rock.
C. sit in the shade of a tree.
D. submerge in a pond.
2. An endotherm is an animal that
A. Regulates its body temperature by staying in the sun.
B.Regulates its body temperature by living underground.
C. Regulates its body temperature partly by generating its own body heat.
D. Does not regulate its body temperature.
Answer:
1) B
2) C
Can you Mark me as the Brainliest??
1. A lizard is cold blooded. This means that it rely on its surroundings to regulate it's body temp. Normally if a lizard needs warmth they rely on the sun, but in the cold months in many places the heat from the sun isn't enough to be a counter effect of the cold/wind. Sometimes the sun isn't even out at all. Because of this it will A. Retreat to an underground burrow to keep warm
2. Endotherm animal is another name for warm-blooded (mammals are a great example of endotherm animals). If you think of your self, a human (at least I hope you are...) then you don't have to worry about the external temperature regulating your internal temp. You don't have to stay in the sun to keep warm or live underground (D. is just ridiculous that it should be obvious that it isn't the answer, so I'm not even going to talk about it). Your body, and all other endotherm animals generate their own body heat, therefore the answer is C.
Hope this helped!
Your family is driving across the country to the Grand Canyon. What type of pollution is your car producing?
A. Agriculture source
B. Mobile source
C. Stationary source
D. Natural source
Answer:
The correct answer would be Option B, Mobile Source.
Explanation:
Your family is driving across the country to the Grand Canyon, Air Pollution or Mobile Pollution is produced by your car.
Air pollution is the pollution generated by the Gas emission, Chemical emission, Car Emission, Dust, etc. This pollution consists of solid particles and gases. Air Pollution is very dangerous as it directly affects the Ozone layer.
As the car is moving, so the car is generating the Air pollution, which is considered a mobile source, because car is travelling from one place to another and emitting air pollution where ever it is going.
9. How might an intense solar storm affect people on Earth?
The most powerful solar storms send coronal mass ejections (CMEs), containing charged particles, into space. If Earth happens to be in the path of a CME, the charged particles can slam into our atmosphere, disrupt satellites in orbit and even cause them to fail, and bathe high-flying airplanes with radiation.
CAN SOMEONE PLEASE HELP ME EITH THIS ASAP
For this assignment, you will demonstrate what you have learned about the properties of water by designing and
conducting an experiment that examines one of water's properties. First review this example of an experiment
designed to investigate waters specific heat.
Design and conduct an experiment to investigate water's surface tension.
To investigate water's surface tension, you can design an experiment that involves observing how water behaves with different substances placed on its surface. Start by filling a small container, such as a shallow dish or a petri dish, with water.
Then, carefully place various small objects, such as paperclips, coins, or small pieces of paper, on the surface of the water one at a time and observe what happens. Measure the number of objects that the water's surface can support before they sink. Repeat the experiment with different liquids, such as oil or rubbing alcohol, to compare their surface tension properties with that of water.
The surface tension of water is a result of the cohesive forces between water molecules, which causes them to attract and hold together at the surface. This experiment allows you to observe how surface tension affects the ability of water to support objects on its surface and compare it to other liquids. By understanding surface tension, you gain insight into one of the unique properties of water that plays a crucial role in various natural phenomena, such as the behavior of water striders on the surface of ponds or the formation of droplets on leaves.
Prokaryotes can take up genetic material from each other without reproducing or even being closely related in a phenomenon called
A. parasitism.
B. abiogenesis.
C. ribosomal uptake.
D. horizontal gene transfer.
Answer:
(D). horizontal gene transfer.
Explanation:
HGT (horizontal gene transfer) is a process of lateral gene transfer, which involves transfer of genetic material between organisms other than from parent to offspring.
In prokaryotes, horizontal gene transfer occurs through conjugation, transduction, and transformation.
Thus, the correct answer is option D.
Answer:
D. horizontal gene transfer.
Explanation:
Option D. is the correct answer choice as I completed the same Penn Foster exam with a grade of 100%.
Data Analysis
Aquatic Organism pH Range for Life
Clam 4.5 - 5.0
Snail 5.0 - 9.0
Bass 5.5 - 9.0
Crayfish 5.5 - 8.5
Mayfly 5.5 - 9.0
Salamander 6.0 - 8.0
Trout 6.0 - 8.5
Perch 6.5 - 8.5
Frog 7.0 - 9.5
The EPA has recommended water quality criteria that include the pH in both freshwater and salt water. The recommended pH range for freshwater is 6.5 to 9.0, and for salt water it is 6.6 to 8.5. In the eastern United States, 75% of the lakes have a pH in the acidic range, from 6.5 to 4.2.
Based on this new information, what species are most likely to survive in eastern U.S. lakes, if the pH drops and remains at 4.2?
A) frogs
B) clams and snails
C) none of the species would survive
D) frogs, perch, trout, salamanders
Answer:
C) none of the species would survive
Explanation:
clam only goes down to a pH of 4.5
Answer:
The correct answer is C) none of the species would survive
Explanation:
According to the given data, the minimum pH range in which an organism can survive is 4.5-5.0 and that is for clam and that maximum range an organism can live is between 7.0-9.5 which is for frog.
Therefore according to data, no organism can live below pH 4.5 and above pH 9.5 or organism can only live between pH 4.5-9.5. So if the pH eastern U.S. lake drops to 4.2 than even clam will not able to survive in that lake.
This means the pH of the lake is too acidic for the survival of any species, therefore, the correct answer is C) None of the species would survive.