Answer:
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.
Explanation:
how can mass help identify an unknown substance
Answer:
Explanation:
You cannot use mass to tell one substance from another.
two very different objects can have the same mass.
Which of the following statements is subjective?
A. Van Gogh painted beautiful works of art.
B. Einstein was a scientist.
C. The planets revolve around the sun.
D. Blue is a color.
The answer is
What do these panels do?
What are atoms? What particles are they composed of? What is relative location and charge of each particle?
Explanation:
an atom is the smallest chemical particle that exists
the are composed of 3 main things
protons
neutrons
electrons
protons and neutrons are located in the nucleus of the atomic structure( centre) and electrons are in shells out of the nucleus
protons are positive charged
electrons are negative charged
neutrons don't have a charge as their charge is too small and considered as nothing so 0
High metamorphism ( what is the metamorphic rock) ?
Answer:
I hope this helps you!
Explanation:
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors
Answer:
Metamorphism rock is...
Explanation:
Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.
A student observed a palisade cell using a microscope. The microscope had four objective lenses, each with a different magnification. Which objective lense should the student use?
Answer:
x4 objective
Explanation:
The student should use the x4 objective lense in order to be able to observe the palisade cell of a leaf.
The palisade cells are located below the cuticle and the epidermis of the leaf and the x4 objective will provide the largest field of view for adequate study by the student. The x4 objective is also easier to focus compared to the lower objectives.
Rotenone, a piscicide (fish poison), interferes with the transfer of electrons between Complex I and Complex II in the process shown above. Which of the following results would be expected in the mitochondria of fish exposed to Rotenone? Why?
Answer:
Mitochondria stops working.
Explanation:
When the mitochondria of fish exposed to Rotenone, it inhibits the cellular respiration which is the main cause of death of fishes. This inhibiting of cellular respiration in mitochondria leads to reduction in cellular uptake of oxygen and this reduction is responsible for the death of fishes. This Rotenone releases by the plants present in the water as well as used as pesticides for killing of fishes.
Both a man and a woman are heterozygous for freckles. Freckles (F) are completely dominant over no freckles (f). What is the chance that their child will have freckles? Show the genotypes crossed, and the probability of each genotype and phenotype that may result from the cross.
Answer:
The chances that their child will have freckles equals 75% or 0.75.
Explanation:
Due to technical problems, I was not able to complete the explanation in this box. You will find it in the attached files.
Cell division occurs in two stages: division of the nucleus, called
Choose...
, and division of the cytoplasm, called
Choose...
.
Answer:
mitosis, cytokinesis
Explanation:
Cell division occurs in two stages: the division of the nucleus, called karyokinesis, and the division of the cytoplasm, called cytokinesis, and both of these include cell division and form two cells from one.
What is the significance of karyokinesis?There are many steps in cell division, two of which are important, the first is the division of the nucleus, known as karyokinesis, which is the process of nuclear division that includes replication of the genetic material and separation of the duplicated chromosomes and is important for the production of genetically identical daughter cells for growth and repair in multicellular organisms. The single cell is divided into two cells after cytokinesis, which occurs at the end of cell division.
Hence, cell division occurs in two stages: the division of the nucleus, called karyokinesis, and the division of the cytoplasm, called cytokinesis, and both of these include cell division and form two cells from one.
Learn more about the Karyokinesis here.
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16 An organism with a cell wall would most likely be unable to take in materials through
A) osmosis
B) facilitated diffusion
C) active transport
D) endocytosis
Answer:
endocytocis
Explanation:
Which of the following statements is true about the movement of fluid in a
convection cell?
A. Hot fluid rises because it is denser.
B. Cool fluid rises because it is less dense.
C. Cool fluid sinks because it is denser.
D. Hot fluid sinks because it is less dense.
The option that is true about the movement of fluid in a convection cell is B. Cool fluid rises because it is less dense.
What is a convection cell?It should be noted that a convection cell simply means a system where a fluid is warmed and loses density.
In this case, cool fluid rises because it is less dense. The colder and denser part of the fluid simply descends below the warmer fluid.
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What is the driving force for plate tectonics?
A.Gravity slab pull
B.The gravity of the Moon and Sun
C.Heat from the Earth's core causing mantle convection
Answer:
Option C
Explanation:
Driving force for plate tectonics is the "convection in the Earths mantle" or option C. Convection is the transfer of heat due to the movement in molecules also causing hot to rise and cold to sink. Convection currents cause the tectonic plates to move because the currents rise to the Earths surface forcing the plates to drive away from each other also known as seafloor spreading.
Hope this helps
why is blood pressure an example of negative feedback?
Answer:
Regulation of blood pressure is an example of negative feedback. ... If blood pressure is too high, the heart rate decreases as the blood vessels increase in diameter ( vasodilation ), while the kidneys retain less water. These changes would cause the blood pressure to return to its normal range.
Explanation:
Which of the following statements is true regarding the vice president's role in the Senate?
In recent years, vice presidents have been less active in the Senate.
Most modern vice presidents have voted hundreds of times in the Senate.
Vice presidents will often get involved in debates being held in the Senate.
The vice president may cast a vote in the Senate whenever they chose.
Answer:
answer ...In Recent year, vice presidempnt have been less active in the Senate
Explanation:
hope It will help
Predict the two possible outcomes if temperature or pH were changed within the molecular control system of cell division.
I'm pretty sure it's that the cells would divide more or divide less, right? Because the temp or pH change would cause some enzymes to denature, and then, depending on which ones denature, the regulation of cell division would be messed up and they would either divide too much or not enough?
Answer:
Yes, pH and temperature affects the cell division.
Explanation:
If the temperature falls between the range of 3 °C to 25 °C, the mitosis process increases but when the temperature lowers from 3 °C and exceeds from 25 °C so it decreases the rate of mitosis process because the enzymes which is responsible for the process of mitosis denatures and does not work properly. same is the case with pH, the rate of the process will increase when the pH is neutral but decreases when the pH goes lower or higher.
Which phrase correctly defines net production efficiency? The amount of energy–
A. captured from sunlight
B. available to decomposers
C. stored in roots
D. available to make new tissue tissue
The statement that describes net production efficiency from the question is The amount of energy ;A. captured from sunlight
Net production efficiency can be regarded as measure that explains the way each trophic level make use of energy and also incorporate it from their food into biomass so that another level of trophic can be fueled.Option A, which State that the energy captured from the sun is correct because it serves as the efficient and principal energy for all trophic level.
Therefore, option A is correct.
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VERY EASY 7TH GRADE SCIENCE QUESTION FIRST PERSON BRAINLIEST!!!!
The final velocity minus the initial velocity divided by time is the formula for —
A. constant speed
B. ending velocity
C. average speed
D. acceleration
please help me, i dont like this
Answer:
the answer is true because plant can be infected
by parasitic
sorry if wrong
Answer:
This is true.
Explanation:
Some plants are parasitic, which means they do not make their own food. They do, however, steal necessary water and minerals from other plants, often killing the other plants off. Parasitic plants sometimes do have chlorophyll, and others do not.
Describe how bacteria have become resistant to treatment.
Answer:
Explanation:
Bacteria gene will mutate and this trait will be passed along to the offspring. This allows them to withstand treatment.
As the fruit develops, why do the petals, stamen, and sepals fall off?
A. The fruit absorbs them, which gives the fruit its color.
B. They have served their purpose and are no longer needed by the plant.
C. The material in the petals, stamen, and sepals become the skin of the fruit.
D. The flower has become dehydrated.
Answer:
A. The fruit absorb them, which gives the fruit its color
Explanation:
basta yunn
1.) If a strand of DNA has 10% G, what percent will be T?
2.) If a strand of DNA has 45% A, what percent will be C?
3.) If a strand of DNA has 24% T, what percent will be G?
Please select the word in parentheses that fits the sentence:
A catalyst [weakens/strengthens] the bonds of the reactants [increasing/decreasing] the activation energy.
Answer:
Weakens and Lowers activation energy
Explanation:
please hellp asappppp In an area with very tall trees shading an understory of shorter trees, all of which have epiphytes growing on them, which of the following other conditions are most likely to exist as well?
It is near 30° latitude north or south or on the leeward side of a mountain range.
Moist air is rising over the area.
Night temperatures are much colder than daytime temperatures.
The soil has a thick layer of decomposed, nutrient-rich organic material.
There is an extremely high diversity of species in the area.
There is little rainfall and frequent fires regularly cut the vegetation to the ground.
4 and 6
1 and 3
2 and 5
3 and 4
please please give me the brainlyest answer
PLEASE PLS PLS ANSWER FASTT
Which of the following is not an example of chemical weathering?
a Animals burrowing in the ground and causing rocks to become exposed and then further weathered by wind and other elements.
b Acid rain reacting with rocks.
c Plants that produce acid and slowly wear down the rocks
d Rocks that contain iron react with oxygen and water and cause rocks to turn a reddish color.
Since chemical weathering is the reaction of rocks with other chemicals, the answer should be answer D!
Hope this helps, if not, comment below please!!!
Which of the following is an example of an ecosystem service that would provide protection from a hurricane storm surge?
A lock and dam system
An intact coastal wetland
An energy-producing tidal barrage system
An offshore, deep-water fish farm
Answer: An intact coastal wetland
Explanation:
Hurricane storm surges results when the water level rises above normal as a result of a storm and therefore goes inland from the coast far deeper than it normally does.
Normally this can destroy things next to the coast by washing them away but some ecosystem services can provide protection against this such as an intact coastal wetland. Being intact, there are less chances of being washed away and as it is a wetland it is used to high levels of water and can even absorb some of the surge.
What are some of our key mineral resources and what are our known reserves?
Answer: heyy
nnejdew
Explanation:
I need help in this I’m confused
Answer:
A
Explanation:
see, if the beetle population decrease. the green plants will have nothing that eats them so they will increase. but since the owl's existence depends on every other organism to the left, any decrease will affect is negatively.
Which sequence of RNA transcribed from the base sequence of DNA is ATA CCG ATC GAT
a. UAU GGC UAG CUA c. GCG CCG ATG GUA
b. TCG CCC AUG CUA d. UAU CCG AUG CUA
Answer:
a
Explanation:
this image shows what each letter changes to.
Answer:
The transcription of the sequence ATA CCG ATC GAT is a. UAU GGC UAG CUA
Explanation:
T --> A
A --> U
C --> G
G --> C
Which statement explains the role of genes in the process of inheriting a specific trait? Question 8 options: Genes are changed by the environment of a living thing and these changes effect the genes of the offspring. Genes in living things come together to make chromosomes which take information from offspring to parent. Genes absorb chemicals from the blood stream and carry them throughout the body of parents and offspring. Genes which are past from both parents carry the genetic material that determines inherited traits.
Answer:
Genes which are past from both parents carry the genetic material that determines inherited traits.
Explanation:
water molecules are polar, with the
Answer:
Water molecules are polar, with the oxygen side being slightly negative and the hydrogen side being slightly positive. ... In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is slightly negative.
Explanation: