Answer:
0.27m
Explanation:
To get the energy
Potential energy= Mgh
M is Mass
G is acceleration due to gravity
H is height..
M= 0.29kg, h= ?
P=0.759. g=9.8m/s
Therefore,
0.759=0.29×9.8×h
H= 0.759÷2.842
H= 0.27m
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❥What is Photosynthesis...?
Answer:
It is the process where by plants manufacture their own food by using raw material such as carbon (iv) oxide, water and sunlight.
Answer:
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Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
What is the independent variable of great white sharks travelling distance?
Answer:
Each year, great white sharks migrate over long distances from their feeding grounds off the central California coast to other feeding grounds far away in the Pacific Ocean. ... That's one reason they migrate from one feeding ground to another, to take advantage of the seasonal bounty.
It's though that a shark can travel up to 50 miles in one day. While we cannot know this for certain as sharks have never been tracked this way, 50 miles is a good estimate
Q.2. Describe the different phases of meiotic prophase – I. Mention the chromosomal events during each stage.
Prophase-I occurs over a long duration and involves several complicated changes in meiotic cell division. It is important because genetic recombineiion and variation in sexually reproducing organism occurs due to the events of this phase.
EXPLANATION:❈ Leptotene —
➥ The chromatin network opens out and threads become clear.
➥ The chromosomes are thin, slender and long.
➥ Chromosome number is diploid.
❈ Zygotene —
➥ Corresponding chromosomes become intimately associated.
➥ The process of pairing is known as synapse. It is so exact that pairing is not merely between corresponding chromosomes but between corresponding individual units.
➥ The chromosomes become shorter and thicker.
❈ Pachytene or Pachynema —
➥ The synaptic chromosomes become very intimately associated.
➥ The pair of chromosomes becomes short and thick.
➥ Crossing over occurs at this stage. Chiasmata are clearly seen.
❈ Diplotene —
➥ Homologous chromosomes start separating from one another.
➥ Chiasmata tend to slip out of the chromosomes. This is known as terminalisation of chiasmata.
➥ Chromosomes start separating out but the separation is not complete.
➥ Nuclear membrane and nucleolus start disappearing.
❈ Diakinesis —
➥ The bivalents condense further and get randomly distributed.
➥ The separation of paired chromosomes is almost complete.
➥ Terminalisation of chiasmata is almost complete.
➥ Nuclear membrane and nucleolus disappear.
Why cells divide and what happens to genetic material during cell division.
Ok, do we live in or on earth?
Answer:
On, we live on the surface of Earth.
If we lived in it, we'd be near the core, or literally inside the earth's many layers.
Hope that helps! :)
-Aphrodite
Explanation:
Genetic Technology: Write a scientific explanation to explain the multiple technologies that humans
can use to affect traits in organisms. Use evidence to describe the processes and give examples. Give
at least two examples
Answer:
Examples of genetic technologies:
- High-yield maize varieties by conventional breeding
- Production of hormones by transgenic or genetically engineered microbes
Explanation:
Genetic improvement refers to the use of technologies in order to develop and select individuals with desired phenotypic traits. These genetic technologies can be divided into 1-conventional genetic improvement approaches based on the development of individuals (e.g., new plant varieties) by crossing together individuals with desired characteristics and subsequent rounds of artificial selection, and 2-modern genetic technologies where genes are directly manipulated in the laboratory through genetic engineering technologies such as, for example, the use of transgenic methods (e.g., DNA microinjection, retrovirus-mediated gene transfer, etc), or the CRISPR-Cas9 genome editing system (which can be used to edit target genes of interest), etc.
Molecules that do not contain carbon are called inorganic.
true or false
Answer:
The answer is false
Explanation:
because most carbon are harmful and are added by humans
how many plant species live in the understory of the long leaf pines?
A:900
B:54
C:800
D:157
Answer:
54 i think
Explanation:
MARK ME PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZzcan anyone help me with this it would really help me out right now
Answer:
I think it's insects ....
How can mountain ranges and regional winds affect patterns of precipitation? Construct an explanation.
Pls help question is in picture
Answer:
"It prevents the two populations from interbreeding" I just took the test.
Explanation:
10 points for each valid answer! Thanks.
There are many technologies that reduce the amount of carbon emissions into our atmosphere. Identify some examples of these technologies.
Answer:
Biomass Energy
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, etc. The energy from these organisms can be burned to create heat or converted into electricity.
Hope this helps! :)
What is a common characteristic between both prokaryotes and eukaryotes?
A. Both lack a nucleus
B. Both have DNA
C. Both are simple
The difference between pinocytosis and receptor-mediated endocytosis is that _____. Question 14 options: pinocytosis can concentrate substances from the extracellular fluid, but receptor-mediated endocytosis cannot. pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity. pinocytosis brings only water molecules into the cell, but receptor-mediated endocytosis brings in other molecules as well. pinocytosis increases the surface area of the plasma membrane, whereas receptor-mediated endocytosis decreases the plasma membrane surface area.
Answer:
The difference between pinocytosis and receptor-mediated endocytosis is that pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity.
Explanation:
Pinocytosis and receptor-mediated endocytosis are two types of endocytosis.
The first one consists of plasmatic membrane invaginations that capture extracellular fluid with different nutrients and sends it to the inside of the cell in vesicles. The second one, receptor-mediated endocytosis, consists of receptors on the outside of the plasmatic membrane and clathrin proteins on the interior side of the membrane. When the receptors are in contact with its specific molecule, a vesicle surrounded by clathrin proteins, is formed transporting specific molecules to the cell's interior.
Which of the following is a definition of the process of natural selection?
a) In each generation, some individuals may, just by chance, have more offspring than other individuals and their traits will become more common in that population.
b) More advantageous traits in a particular environment allow individuals with those traits to have more offspring; as a result their heritable traits become more common in succeeding generations of the population.
c) Mutations occur at random in a population causing populations to change over time as those mutations are inherited from one generation to the next.
Answer:
C
Explanation:
Mutations occur oftenly in organisms because it is seen as natural. Not all generations will give offsprings with perfect traits, They tend to have either 50/50 inherited traits from each parent of 100% off a parent if it was asexual reproduction.
“Explain how chemical energy for use in the cell is generated by electron transport and chemiosmosis”
PLEASE HELP!!
*50 points to whoever can answer that question and draw a flowchart, thank you*
Answer: The ETC is the last part of cellular respiration. In the first steps of cellular respiration (glycolysis and Krebs cylce), electrons are freed from glucose derived molecules. In the ETC the electrons are passed on through a series of proteins in the inner membrane of the mitochondria. The electrons in a sense 'flow' to lower energy levels (see image), they lose energy in the process.
Energy produced by H+ travelling via ATP synthase and down a concentration gradient is used by chemiosmosis. ADP is phosphorylated with this energy to create ATP.
What is Chemiosmosis?Chemiosmosis is the passage of ions along their electrochemical gradient through a semipermeable transmembrane domain structure. Adenosine triphosphate is created when hydrogen ions pass a membrane during photosynthesis or cellular respiration. This is a significant example.
The process of ions (often H+ ions, commonly referred to as protons) diffusing across a membrane that is selectively permeable is known as chemiosmosis. Chemiosmosis produces a concentration gradient of a diffusing ion from across membrane, similar to osmosis. Potential energy that can perform work is present in concentration gradients.
Thus, energy produced by H+ travelling via ATP synthase and down a concentration gradient is used by chemiosmosis. ADP is phosphorylated with this energy to create ATP.
Learn more about Chemiosmosis, here:
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Which of the following efforts is used in the enforcement of the Kyoto
Protocol?
A. Trading carbon credits among countries
B. Monitoring the ozone hole over Antarctica
C. Banning aerosols in every country
D. Banning CFCs worldwide
1. The amplitude of a sound's wave determines the sound's
a) pitch
b) loudness
C) speed
d) frequency
Answer:
D, frequency
Explanation:
Answer:
A. frequency
Compare the processes of anaerobic respiration in muscle and plant cells.
Answer:
Both plants and animal perform anaerobic respiration without the use of oxygen however in plants when the glucose is chemically reacted to produce energy it also produces ethanol and carbon dioxide while in animals when the glucose is chemically reacted to produce energy it also produces lactic acid and carbon dioxide
Explanation:
9. What processes make these different types of rocks?
10. What properties are used to identify some of these rocks?
11.What are the most important minerals on Earth?
12.What are the importance of minerals on the earth?
9. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
10.Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage.
11.The feldspar-group, a very complex mixture of oxygen, silicon, aluminum and trace elements like sodium, potassium, calcium and more exotic elements like barium, are by far the most common minerals, making up almost 58% of all to a geologist accessible rocks, especially magmatic and metamorphic ones.
12.minerals are really very important in our life as they are used in our daily purposes and we use for example iron daily we use iron almirahs etc ,......
we use aluminium, diamond etc . in our daily life we use aluminium foils that are used to pack food items etc ,. there are many examples such as these ....
Minerals are play important role in our life. Everything we use from a tiny ship to tower are building is made from a mineral. We use minerals in our daily life for example tooth paste its cover and brush everything is made from minerals. All living things also need minerals
Which of the following is a biotic factor that limits the carrying capacity of animal species?
A.
amount of sunlight
B.
availability of space
C.
temperature
D.
availability of food
Answer:
availability of food
Explanation:
Without food as an energy source the population will decline. Trust me I did the study island
Which statements BEST explains the reason muscle cells have more mitochondria than
skin cells?
Muscle cells have
fewer proteins than
skin cells.
Muscle cells have
more excess water
than skin cells.
Muscle cells have a
smaller nucleus
than skin cells.
Muscle cells use
more energy than
skin cells,
Answer:
Muscle cells use more energy than skin cells.
Explanation:
This is because muscles are what make you move, they are needing a lot more energy to move. Mitochondria are the organelles that make energy, they are the Powerhouse of the cell.
Biologically speaking what is the only purpose of reproduction
Answer: To prevent extinction
Explanation: This is to say the main purpose of reproduction is for the continuation of species.
Factors that influence the size of ocean waves include how
Answer:wind strength
Wind velocity, wind timeframe means how long the wind blows, and fetch, which is the distance over water that the wind blows in a single direction, all influence wave height.
What are ocean waves?The splendor of the sea is also displayed by sea waves. The waves propagate the restlessness of the vast ocean. It also symbolizes faith, presume, and joy even in the most difficult of circumstances.
Wind waves in the ocean, also known as ocean surface waves, are primarily gravity waves.
Wind ripples have some randomness to them: subsequent waves vary in height, length of time, and shape with restricted consistency.
The wind is the most frequent cause of waves. Wind-driven waves, also known as surface waves, are caused by the friction of wind and surface water.
A wave crest is formed when wind picks up across the surface of the ocean or a lake.
Thus, Wind velocity, wind timeframe means how long the wind blows, and fetch are the factors that influence the waves of ocean.
For more details regarding ocean waves, visit:
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Which molecules would you expect to find at the top of the diagram?
Answer: Oxygen. Oxygen because both plants and animals need oxygen to breath. When the inhale its carbon dioxide but when they exhale its oxygen.
Explanation: im so sorry if its wrong i did a test on tath like two weeks ago sorry ◑﹏◐
How is upwelling important for marine organisms?
Answer:
Because the deep water brought to the surface is often rich in nutrients, coastal upwelling supports the growth of seaweed and plankton. These, in turn, provide food for fish, marine mammals, and birds. Upwelling generates some of the world's most fertile ecosystems.
Explanation:
Answer:
Upwelling is very important for marine organisms because these nutrients fertilize surface waters, encouraging the growth of plant life. Upwelling plays an important role in the movement of marine animals.
Hope this helps! :)
The mitochondria is an organelle used for the purpose of cell _______________.
a)respiration
b)replication
c)rejuvenation
d)recitation
Answer:
a)respiration
Explanation:
Cellular respiration takes place in the mitochondria and it basically makes energy for the cell.
Predict the change in gene frequencies as a result of this change to gas furnaces.
For each condon ,find the correct tRNA
Please I beg you help me. Contrast solids,liquids, and gases on the molecular level
gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.