If it hits a single atom, a "product" can be broken. But only until it is a single molecule will a "molecule" be separated. Of starters, oxygen, H2O, always appears like oxygen in millions. But if you split it into smaller and lesser parts, say half, you can divide it only until you get 2 hydrogen and 1 oxygen. It's no longer water if you divide it further. It's going to be another matter.
Hope this helps!
Which led to the formation of oceans after water on Earth’s surface evaporated? The sun released a strong burst of water vapor. As Earth cooled, water in the atmosphere condensed. Materials collided due to strong gravitational forces. The ozone layer formed to protect against harmful UV ray exposure.
Answer:
As Earth cooled, water in the atmosphere condensed.
Explanation:
B edg 2020
The process that led to the formation of oceans is, as Earth cooled, water in the atmosphere condensed.
Water cycleThe process that led to the formation of oceans after water on Earth’s surface evaporated can be explained using water cycle.
The evaporated water from the Earth's surface move into the atmosphere where it condenses before precipitating inform of rain. The precipitated water forms a large body of water known as ocean.
Thus, the process that led to the formation of oceans after water on Earth’s surface evaporated is as Earth cooled, water in the atmosphere condensed.
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Scientists use statistics to
- all of the above
- graph data.
- analyze data
communicate ideas to each other.
Which of the following includes all the plants, animals, bacteria and other living things in an area?
- community
-consumer
-ecosystem
-population
Answer:
Community
Explanation:
Community includes all the plants, animals, bacteria and other living things in an area
Answer I am sure that the right answer is consumer
Explanation:
Q. Habitat loss occurs due to agriculture, forestry, and other human activities. Describe the effect of these activities on species diversity in the ecosystems in which they occur, and how this would affect the stability of these ecosystems over time.
Answer:
Explanation:
Human activities had led to diversity of species in ecosystem. Some of the species of animal have been lost and displace due to human activity such as deforestation, construction, company establishment.
Clearing of land for agriculture use has also contributed to diversity that occur in the habitat of an animal.
Diversity of an habitat leads to an unstable ecosystem, as animals can no longer thrive and live in their environment, some species of animals are lost including important species in the environment in the process and others struggles to survive.
Reduction of human activities in animals natural habitat can help restore diversity.
refused to let Americans ship products down the
Mississippi River.
Canada
Spain
Britain
France
Answer:
its Spain
Explanation:
In the dihybrid cross,_____of the parents had black fur and black eyes. The offspring_____.
Answer:
both,varied
Explanation:
Answer:
Both, Varied
Explanation:
edge 2022
which of the following is an adaption that helped plants survive on land? A. a bony skeleton B. a diploid form C. photosynthetic cells D. formation of a cuticle
Answer:
D
Explanation:
The cuticle of a plant helps protect its aerial epidermis from things like environmental stresses and desiccation.
Answer:
D
Explanation:
Partical A has very little mass in comparison to partical B. Both Particals are in the same atom. which is the best conclusion about Particals A and B?
A. They have opposite charges
B. They are located in the nucleus together.
C. Partical A has a negative charge, and Partical B is neutral.
D. Partical A orbits the nucleus, and Partical B is located in the nucleus
Answer:
D. Particle A orbits the nucleus, and Particle B is located in the nucleus
Explanation:
Here since both particles are of the same atom and particle A is much lighter we can infer that Particle A is electron because electrons are much lighter than protons which are Particle B in this case. Thus, particle A orbits nucleus as an electron does and particle B is in nucleus where protons are.
A certain drug is made from only two ingredients: compound A and compound B. There are
6 milliliters of compound A used for every
5 milliliters of compound B. If a chemist wants to make
726
milliliters of the drug, how many milliliters of compound B are needed?
A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255 milliliters of compound A, how many milliliters of the drug will be made?
----------------------------------
4:5 is the same as 4x:5x where 4x is compound A and 5x is compound B.
---
Solve for "x":
If amount of compound A is 4x = 255
x = 255/4
------------------------------
Then amount of compound B is 5x = 5(255/4) = 318.75 ml
=========================
Cheers !!!
===============
Match each measurement tool with what it measures
Answer:
Thermometer measures temperature
Hygrometer measures humidity
Anemometer measure wind speed
Weather vane measure wind direction
Explanation:
The graph shows how the population of turtles in a freshwater pond has
changed over the years.
Turtle Population
250
225
200
175
150
Number of Turtles
125
100
75
50
5
6
10
Year
At which time has the turtle population reached the carrying capacity of the
pond?
A. Year 1
B. Year 5
C. Year 3
O D. Year 10
Answer:
B. Year 5.
Explanation:
In 5 years time the turtle population reached the carrying capacity of the pond. Carrying capacity of pond refers to the population of marine animals such as fishes, turtles etc can live and survive on the natural food available in the pond. If the food is present in large amount, than carrying capacity of the ecosystem is large. In pond ecosystem, the population of turtle decreases because the food is not sufficient to feed the existing population.
Answer:6 years
Explanation:
Dinobryon is a species of protozoa that reproduces asexually. How is it better for the survival of the species for the protozoa to reproduce asexually instead of sexually? A.They do not use up any energy finding mates. B.They use more cellular energy in reproduction. C.They have less genetic diversity in their populations. D.Their populations do not grow too quickl
Answer:
A. They do not use up any energy finding mates.
Explanation:
The asexual reproduction consists of one parent which are same to each other while on the other hand consists of two parent that produced unique.
For species survival, the reproduction of protozoa asexually rather than sexually could be better when they don't use much time and energy for determining the mates
Therefore in the given case the correct option is A.
Answer: A.They do not use up any energy finding mates.
Explanation:
I just did it on a p e x and i got it correct
Which of the following actions involves voluntary muscle movement? A.movement of food through the digestive tract B.movement of blood through the blood vessels C.beating of the heart D.making of faces
Answer:
D. Making of faces
Explanation:
Voluntary muscle movement is where us humans can choose to move and control how our muscles move.
The first three answer choices are involuntary, since the body does that itself without us controlling it.
However, making faces is voluntary and we choose to do that.
Making of faces is the action that involves voluntary muscle movement. Therefore, the correct option is D.
What is voluntary muscle movement?Voluntary muscle movement refers to the controlled, conscious contraction and relaxation of muscles that result in specific movements or actions.
This type of movement is initiated and directed by the conscious decision-making processes of the brain, and requires the activation of nerve cells that stimulate the muscles to contract.
Examples of voluntary muscle movements include movements such as walking, running, jumping, lifting objects, playing sports, making different type of faces and performing other types of physical activities. Therefore, the correct option is D.
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A scientist is studying fruit fly wings. Straight wings are dominant, and curly wings are recessive. Which statement correctly describes the F1 generation if a straight-winged parent is crossed with a curly-winged parent and if both parents are true breeding? The offspring will have two genes for straight wings. The offspring will produce only gametes that have genes for curly wings. The offspring will have one allele for straight wings and one allele for curly wings. The offspring will have only one kind of allele for the gene that determines wing type.
Answer:
C
Explanation:
its right
2. How might a mutation that causes a single letter change in the DNA sequence affect
your protein structure and function?
Answer:
A mutation that causes a single letter change in the DNA sequence can affect your protein structure and function because the sequence of letters in a gene determines the sequence of amino acids in the protein that it encodes. A single letter change in the DNA alters the mRNA which alters the amino acid sequence of the resulting protein and sometimes that can cause serious results if it changes the way a protein works.
ex. sickle cell disease - a single letter swap in the gene that encodes the hemoglobin molecule results in deformed red blood cells
Hope that helps.
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After getting the slide and microscope ready, Stella is eager to see the microscopic pond water specimen! She crouches around her microscope and aligns her eye with the microscope’s eyepiece. But she's only able to see a bright white light. At this point, no specimens or cells are visible on Stella's pond water slide. After taking a moment to collect her thoughts, Stella realizes she can't see any lifeforms because a.the microscope is not yet in focus b.the microscope is not plugged in c.there are no specimens on the slide d.she hasn't fastened the slide to the stage
Answer:
she hasn't fastened the slide to the stage
Explanation:
In Microscopy even if the slide is not yet in focus,she will be able to see part of the slide which may appear as transparent image.Therefore this is a wrong answer.
If the microscope is not plugged it light can not come up.
If there are no specimen on the slide,the slide will still as transparent image at the focus.
No doubt Stella forgot to fasten the slide to the stage.,therefore the specimen on the slide was not in focus of the objective lens,rather she was focusing on the stage only,hence the visible white light.
Students make these mistakes in microscopy,they sometimes place the slide on the stage,but forget to fasten the stage clip,thus the slide is not in focus of the incident light,which gives no reflection to the viewer's eyes.
Which of the following energy sources causes the most pollution? A. coal B. biomass C. neutrons D. geothermal
Answer:
A. Coal
Explanation:
The other forms listed are "clean" energy sources.
Population
250
200
175
150
Number of Rats (in thousands)
125
100
100
90
76
75
50
130
45
SO
25
110
O
1
2
3
5 6
7
8
10
Year
Based on the graph, at what time did the rat population meet the carrying
capacity of the habitat?
A. Year 5
B. Year 8
C. Year 6
D. Year 2
Answer:
b
Explanation:
i took this before and i know its b
How are plant and animal cells different?
Answer:
Plant cells have chloroplasts and a cell wall while animal cells don't. Animal cells are also more rounder, while plant cells have more of a rectangular box-like shape. There are more differences, but these are some of the main ones.
Hope this helped! :)
Answer:
The main difference between these cells is the that a plant cell has a cell wall and a rigid shape while an animal cell lacks a cell wall and its shape is circular.
Explanation: The plant cell has a robost and rigid shape due to the cellulose found in the cell wall. It's also important to note that a plant cell has a larger vacuole than that of an animal cell.
Which of the following are ways that DNA can undergo mutation? A. During DNA replication, the wrong base is added to the strand as it is being built. B. A virus inserts its DNA into the DNA of another organism. C. High-energy waves like UV light or radiation physically damage the DNA. D. A repair DNA polymerase fixes a damaged DNA strand.
Answer: Option C.
High-energy waves like UV light or radiation physically damage the DNA
Explanation:
Mutation is the change or alteration that occur in the DNA sequence or nucleotides sequence of an organism which is caused by mistakes when the organism is copied or environmental factors such as UV light.
Ultraviolet light cause mutations by activating the SOS repair systemof which is a part of i a new DNA polymerase that has no power to edit e but has the ability to move past the thymine dimer and synthesize DNA, This lead to cells able to replicate but with a high frequency of mutations.
Smurfs live in widely separated groups and rarely interbreed, so geneticists know very little about them. On one occasion, two smurfs from different groups did mate. A big-footed, white smurf mated with a small-footed, blue smurf. Three offspring resulted: one big-footed and blue and two small-footed and blue.Which statement about the inheritance of color in smurfs is most likely to be correct?
Answer:
See the answer below
Explanation:
The most correct statement would be that the blue color is dominant over the white color.
According to Mendelian law, when there are two different versions of the same gene/trait in which one is dominant and the other is recessive, the dominant version will be expressed while the recessive version only stays in the background.
In this case, the alternate versions of the same trait in the smurf are the white and blue colors. When they are mixed together in the offspring, the blue color is expressed and the white color stays in the background. It means the blue color is dominant over the white color.
What is the answer ?
Answer:C
Explanation:
Answer:
the answer is c.
Explanation:
took the test
4. What are some of the characteristics that vertebrates share? (Choose all that apply)
endoskeletons and a backbone
joint appendages
highly developed senses and nervous systems
external protective structures
Answer:
The answers are
endoskeletons and a backbone
highly developed senses and nervous systems
Hope this helps you
A. Mitochondria
B. Converts energy
in the cell
C. Stores food and
water in the cell
D. Mitochondrion
What letter does not belong in each group and explain your thinking ?
Answer:
from the first Table ....letter c is not involved because mitochondria is the plural of mitochondrion which is the power house of the cell ...its used to convert energy in the cell
From the second Table ....letter C is not involved because it's not part of the cell theory as proposed by other options
Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected? (3 points)
Answer:
The options are
it was too old to be used in modern times
it was too complicated for scientists to understand
scientists found new evidence to prove it invalid
scientists discovered a shorter theory to replace it
The answer is scientists found new evidence to prove it invalid
Steady State Theory of origin of the universe has been rejected due to new findings about how the universe was formed through carefully observing it which faulted past theories. This validates the option which states that scientists found new evidence to prove it invalid.
The burrowing owl is found in dry, open areas such as grasslands, prairies, savannas, deserts, farmlands, golf courses, and other urban areas throughout most of western United States and Florida, Central America, and most of South America. It makes its home in burrows of other animals and primarily eats insects and small rodents. As humans build more cities, nearby burrowing owl habitats change due to destruction of burrows and loss of prey. Which is the least likely outcome of the habitat changes that are described?
Answer:
its population would increase
Explanation:
it says the least likely outcome which is the population increasing
Answer:
C
Explanation:
Both the ER and Golgi have folds. what is the advantage of folds on an organelle? A. Increased surface area B. Increased volume C. Increased density
Answer:
A) Increased surface areas.
Explanation:
THe larger the surface area, more space available for chemical reactions.
Which scientist performed an experiment with curved-necks flasks in order to further support the results of Redi's experiment? A. Louis Pasteur B. Charles Darwin C. Ludwid Hirszfeld D. Stephen Hawking
Answer:
The answer is A. Louis Pasteur
Explanation:
Countinuing Redi's experiment, Pasteur said that if spontanous generation had been a real thing, the germs would have eventually found its way back into the broth, but it couldn't since the curved neck of one flask blocked the germs.
Organisms are made up of one or more _____. energies cycles cells clones
Answer:
Cells
Explanation:
━━━━━━━☆☆━━━━━━━
▹ Answer
cells
▹ Step-by-Step Explanation
All living organisms are made of cells. There are single cellular organisms, and multicellular organisms.
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━━━━━━━☆☆━━━━━━━
An entomologist writes an article in a scientific journal which claims that fewer than 11 in ten thousand male fireflies are unable to produce light due to a genetic mutation. identify the type i error for the test.
Answer:
The correct answer is given as:
The error of rejecting the claim that the true proportion is fewer than 0.0011% when it really is lower than 0.0011%
Explanation:
When executing hypothesis testing, the probability of rejecting a true null hypothesis is referred to as type one error is.
When on the other hand there is the probability of not rejecting the null hypothesis when its actually false, type two error is said to have occurred.
The strenght/quality of a good test is the probability of rejecting a false null hypothesis.
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