Answer:
answer below
Explanation:
membrane that allows certain substances to go through it but not others, especially allowing the passage of a solvent but not of certain solutes.
What 2 cats cannot compete for food against the python?
Answer:
look up that title to a video an youll figure it out
Explanation:
"CAT vs PYTHON | Mother Cat Cleverly Bite Giant Python To Protect Her Kittens'
What is the difference between diffusion
and facilitated diffusion?
A. Facilitated diffusion requires energy
B. Diffusion moves substances from
low to high concentration
C. Facilitated diffusion uses carrier proteins
to move substances in or out of the cell
D. All of the above
Answer:
option A and C
Explanation:
Which biomes would a cactus belong to?
Answer: Desert Biome
Explanation:
Cactus would grow in the desert biome because it is dry and there is very little water there.
~I hope I helped! :)~
In which category are both animal and plant cells found in?
Answer:
Eukaryotic Cells
Explanation:
Both plant and animal cells are eukaryotic cells.
What is the difference between osmosis and diffusion? A) osmosis only occurs in marine (salt water) organisms B) they are the same in all ways C) they are the same except osmosis specifically and only involves water D) diffusion only occurs in animal cells while osmosis occurs in all cells
Answer: The correct answer is: C The are the same except osmosis specifically and only involves water.
Explanation:
Osmosis is the process in which a solvent moves across a semipermeable membrane in order to dilute a concentrated solution and it ends up equalizing the concentration of the solution at both sides of the cell membrane.
On the other hand, diffusion occurs when particles move from an area of higher concentration to an area of lower concentration and it ends up equalizing the concentration.
So the main difference is the presence/ Lack of water in the processes.
In conclusion the correct answer is : C.
Help quick please!
Which deep-water body is a unique feature of the Southern Ocean?
The ________ water is a saline, cold, and dense body of water lying deep in the Southern Ocean, traveling northward.
Explanation:
a unique feature of Antarctic bottom water is the cold surface wind blowing off the Antarctic continent
Hypotheses that are confirmed through repeated testing can lead to the development of a theory, such as the cell theory. What do all scientific theories attempt to do?
1) classify the natural world
2) explain the natural world
3) describe the natural world
4) predict events in the natural world
Answer:
1
Explanation:
...
An individual went to the doctor with a blockage in their digestive system, but the doctor could
not find the exact location. The doctor decided to give the patient that contained a radioactive
isotope. Explain why.
Answer:
the reason the doctor would have done this is because once the radioactive isotope hit the blockage it would stop and this type a things transmits radioactive rays that would help the doctor locate it more easily.
Answer:
In the explanation. :)
Explanation
The radioactive isotope hits the blockage so that means it would stop and transmit radioactive rays that would help the doctor locate it.
Hope this helps. Have a great day.
two common processes in rock cycle and water cycle
Answer: Erosion and Deposition
Explanation: My textbook
Here ia a simplified food web for some of the organisms you might find in Canyonlands National Park in Utah. Which of these would NOT be a primary consumer?
Answer:
A) Producers
Explanation:
All of the plants are producers. They make their own food from photosynthesis, and organisms that eat them get some of that energy to use as well.
Answer: Coopers hawk
Explanation:
it's the only one not getting eaten by something else.
The Hubble Space Telescope takes hundreds of pictures. An astronomer examines a
recent image that they describe as a collection of many billions of stars bound together by
gravitational attraction. What is the astronomer most likely seeing? A) Moon B) galaxy C) planet d) solar system
Answer:
B, The astronomer is most likely seeing a galaxy
what is the difference between jello and cyloplasm?? HELP ME PLEASE
Jello is a sweetened gelatin product mad why boiling the bones and hides of animals.cytoplasm is a semi fluid substance that is external to the nuclear membrane and internal to the cellular membrane.
describes how an organelle contributes to the ability of the cell to perform life functions?
Answer:
Cell organelles are small structures that exist within cells and perform specialized functions
Based upon the presence and absence of membrane cell organelles can be classified into three types:
Membrane less: Cell organelle that lack membrane for example ribosomes they are not bounded by any membrane. Single membraned: Cell organelle that are bounded by single membrane but they are only found in Eukaryotic cell. For example lysosome, Endoplasmic reticulum, lysosome, vacuole. Double membraned: Cell organelle that are bounded by double membrane. Example chloroplast and mitochondria, they are only present in eukaryotic cell.Mendel crossed tall pea plants with short pea plants. The offspring were all tall plants.
Which allele is recessive____
Which allele is dominant____
Answer:
The short is recessive and the tall is dominant
Explanation:
The Punnett Square would look like this (T - tall, t - short):
| T | T |
t | Tt | Tt |
t | Tt | Tt |
All offspring carry the short gene, but the tall gene is dominant, so the plants are tall with the possibility of having short offspring of their own.
Recessive: Short
Dominant: Tall
Which of the following is true of an exergonic chemical reaction?
A. Reactants lose mass as products are formed.
B. Bonds are broken in reactants and new bonds are formed in products.
C. No activation energy is required to initiate it.
D. The energy released is captured by a catalyst.
Answer:
C. Hopes this works.
Answer:
C I THINK
Explanation:
Which of the following is true of an exergonic chemical reaction?
A. Reactants lose mass as products are formed.
B. Bonds are broken in reactants and new bonds are formed in products.
C. No activation energy is required to initiate it.
D. The energy released is captured by a catalyst.
The place where photosynthesis occurs is the:
A. mitochondrial membranes.
B. thylakoid membrane.
c. plasma membrane.
D. ribosomes.
ANSWER
thylakoid membranes
Answer:
b. thylakold membrane
Explanation:
thylakold membranes are in chloroplasts
Which of the following groups of cellular components are found in eukaryotic cells but not prokaryotic cells?
Answer:
mitochondria is found in eukaryotic cells but not prokaryotic cells
Prokaryotes lack mitochondria, There are no prokaryotic cells without mitochondria. The nucleus and the Golgi apparatus are examples of additional membrane-bound structures.
What is the cellular component of prokaryotic cells?All prokaryotes have DNA, ribosomes, cytoplasm, and plasma membranes but no membrane-bound organelles. Polysaccharide-containing capsules are also typical. Diameters of prokaryotic cells range from 0.1 to 5.0 m.
In the cells of almost all eukaryotic organisms, including plants and animals, are mitochondria.
Cells that require a lot of energy, such as muscle cells, can be seen to have many mitochondria. Red blood cells are one sort of cell that doesn't have any mitochondria at all.
Therefore, mitochondria are found in eukaryotic cells but not prokaryotic cells.
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Why do leave appear starch
Answer:
I think that they have waxy leaves
Explanation:
Question 18
5.48 pts
In science we use very big and very small numbers. Scientists have developed units of
measurement which make the numbers easier to manage. For example, instead of saying that
the Sun is 93 million miles from the Earth, it is easier to say the Sun is one
from
the Earth. In science that is the unit of measure for the distance from the Sun to the Earth.
A) space unit b) light unit. C) planetary unit d) astronomical unit
Answer:
Astronomical Unit
Explanation:
What happens when high frequency shines on some metals? What is this called?
Answer:
When a light with a sufficiently high frequency shines on a metal plate, electrons are ejected from the plate. This effect is known as the photoelectric effect. The electrons ejected in this process are called photoelectrons.
Explanation:
You want to measure the effects of different amounts of oxygen on the rate of yeast growth by cell division. What is the dependent variable of this experiment?
Select all that apply.
Animals need plants for:
oxygen
carbon dioxide
food
chlorophyll
energy
Answer:
food and energy
Which statement describes a change of matter that is different?
A. Peroxide breaking down into water and oxygen
B. Bubbles forming when a pot of water is heated
C. A pair of jeans soaked in water drying after hanging outside.
D. A block of ice decreasing in size due to a change in temperature.
Answer:
The statement that describes something different from the change of matter is peroxide breaking down into water and oxygen.
Explanation:
Hydrogen peroxide (H₂O₂) is found in nature in liquid form and undergoes a decomposition reaction, obtaining water and releasing oxygen and heat.
In any case, in the decomposition reaction of peroxide there is no change in the state of matter, since it is a chemical reaction that can be spontaneous, by contact with organic matter or through the use of catalysts.
The other options are associated with changes in matter:
B and C. Bubbles forming when a pot of water is heated and a pair of jeans soaked in water drying after hanging outside. These are examples of water evaporation, which changes from liquid to water vapor.
D. A block of ice decreasing in size due to a change in temperature. Defrosting or melting of water, which goes from solid to liquid.
An organism that is used to control the population size of another organism is called a(n)
Answer:
limiting factors
Explanation:
Both photosynthesis and cellular respiration are the results of change A) chemical B) physical C) both d) none
Answer:
I am thinking that the answer might be A. chemical
Explanation:
cellular respiration is a set of chemical reactions that cells use to change food,water, and oxygen into forms that is usable as energy for the cell. Photosynthesis is the process through which plants turn light energy into chemical energy.
Tides are caused by the suns and the moons gravity pulling water away from the planet. When the sun, moon and earth are at right angles, this is called a tide. When the sun, moon, and earth are parrallel to each other, this is called a tide. Word Bank: seasonal, diurnal, semidurnal, bore, period, rangeneapspring
Answer:
When the sun, moon and earth are at right angles, this is called a neap tide.
When the sun, moon, and earth are parrallel to each other, this is called a spring tide.
Explanation:
There are two types of tides spring tide and neap tide.
A spring tide occurs when the sun and moon are parallel to each other. This usually happens during periods of full and new moon, which are the moments that the moon can form a straight line with the sun, causing the gravitational force to interfere with the tide.
The neap tide, on the other hand, happens when the sun, moon and earth are at right angles. This moment occurs between the waxing and waning moons, where the sun and moon are at right angles and the earth is used as a vertex of that angle. In this type of tide the gravity of the sun becomes more influential than that of the moon.
How does a population's growth rate change as it goes through the phases of logistic growth?
A population increasing according to logistic growth normally has three phases in which the population is near to its limiting population due to intra-species conflict.
What is logistic growth?In 1845, Pierre Verhulst used the term logistic growth to describe a type of population expansion. A graph with time on the x axis, and population y axis, can be used to depict it. The curve's exact form is determined by carrying capacity and maximum growth rate, however all logistic growth models are s-shaped.Phases of logistic growth curve:-The beginning population, carrying capacity, and maximum population growth rate are all factors in a logistic growth model. The beginning population is self-explanatory the carrying capacity is the maximum population that can live in the environment and the maximum rate of growth is how quickly the population can develop if no limitations exist for example, a rabbit population can grow a lot faster than a human populationThe First Stage of Logistic Growth
A logistic growth model's early phase is generally steady or flat over time.Logistic Growth in the Middle Phase
The pace of growth may alter beyond the first period, based on the connection between the beginning population and the carrying capacity. The population grows fast if the original population is substantially lower than the carrying capacity. If the population is significantly bigger than the carrying capacity, the population will rapidly decline, for example, after some ecological devastation reduces the carrying capacity.The population will be steady if the original population is near to carrying capacity.Logistic Growth's Final Stage
When the population reaches or approaches carrying capacity, the final phase of logistic expansion occurs. Until the carrying capacity changes, the population stabilizes at this stage.To know more about logistic growth curve here
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Why does quadrat sampling provide an accurate estimate of a population size within a defined area? Explain your reasoning.
Answer: it's better to do a small area at a time other than doing large areas where it will be hard to find specific species throughout the huge amount of land
A quadrat is a small, designated portion of the entire area to be sampled that is marked off so that the population within it can be counted by hand or by a similar method, like by taking an aerial photograph.
Quadrat sampling provide an accurate estimate of a population size within a defined area:
Quadrats allow researchers to study plant and animal populations spread out over large areas. They are inexpensive, relatively easy to design and adaptable for studying unevenly distributed populations.
Quadrats work well for observing changes to whole populations over time, including distribution patterns, nesting and overall health.
What is Quadrat Sampling?Quadrat sampling is a classic tool for the study of ecology, especially biodiversity. It is an important method by which organisms in a certain proportion (sample) of the habitat are counted directly.
It is used to estimate population abundance (number), density, frequency and distributions.
A quadrat is a small, designated portion of the entire area to be sampled that is marked off so that the population within it can be counted by hand or by a similar method, like by taking an aerial photograph.
Quadrat sampling methods are time-tested sampling techniques that are best suited for areas where access to a habitat is relatively easy.
Advantages:
- It sampling is easy to use and is inexpensive.
- It is suitable for studying plants, slow-moving animals and faster-moving animals with a small range.
- It requires the researcher to perform the work in the field and, without care.
- It measures abundance and needed cheap equipment.
Disadvantages:
- There exists biasness in favor of slow moving taxa.
- Collect only taxa that are present in the sampling time and not buried too deeper in sediment.
- It is a low estimate of taxonomic richness and assemblage composition.
- It is also a low detectability of among-site differences in assemblage composition.
- Some animals may experience harm if the scientist collects the population within the quadrat rather than studying it in the field.
Applications:
1. Quadrat sampling is broadly used in plant studies.
2. It is applied in ecology especially in biodiversity.
3. It is used to find the taxonomic richness of slow-moving taxa in a certain area.
4. It is the best measure of finding taxonomic richness in costal area.
5. It can be also used to evaluate the impact of weathering, trampling or erosion in an ecosystem or at a cliff or rock face.
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Mix a solution with a ph of 2 and a ph of 7. The final ph is _______.
Answer:
you get a ph value of 14
Explanation:
will ocean acidification affect organisms with silica skeletons
Answer:
The answer is coral.
Explanation:
Many marine organisms that produce calcium carbonate shells or skeletons are negatively impacted by increasing CO2 levels and decreasing pH in seawater. For example, increasing ocean acidification has been shown to significantly reduce the ability of reef-building corals to produce their skeletons.
