Answer:
active transport
Explanation:
Active transport is the movement of particles from a region of low concentration to a region of high concentration against the concentration gradient that requires energy.
Explain what causes acid rain to form and its negative effects on living and nonliving things.
Answer:
The rain containing excess of acids called an acid rain.
Explanation:
The rain becomes acidic because of harmful gases like carbon dioxide,
sulphur dioxide and nitrogen dioxide which are emitted as smoke from
vehicles and industries. These harmful gases dissolve in rain drops to
form carbonic acid, sulphuric acid and nitric acid respectively.
Effects of Acid Rain
Acid rain makes the water of lakes, ponds and rivers too acidic
due to which fish and other aquatic animals get killed.
Acid rain eats up the leaves of the trees gradually. By losing
leaves, the trees die. Acid rain also damages crop plants in the
fields.
Acid rain damages the metal structures like steel bridges, etc
when it falls on them.
Acid rain damages the surfaces of buildings and monuments made
up of marble.
What has constantly changing amount of salt in the water
Answer:
estuary
hope this helps
have a good day :)
Explanation:
what do carbohydrates, proteins , and fats have in common using the model above?
Answer:
carbohydrates ,proteins and fat all have carbon, hydrogen and oxygen atoms
PLS GIVE BRAINLIEST
Do heterozygous individuals have two of the same allele?
Answer:
False.
Heterozygous means having two different alleles.
Answer:
Heterozygous individuals have two different alleles of a gene.
Explanation:
All of the following are kinds of passive transport EXCEPT
A. diffusion B.facilitated diffusion C. osmosis D.ion channels
Answer:
C
Explanation:
Which of these organisms will be hunted more often by predators when the corn is infected by fungus?
A. Grass
B. Owl
C. Rabbit
D. Snake
Answer:
A. Grass
Explanation:
In their natural habitat, organisms feed on one another in a relationship called PREDATION. Predation involves two organisms; one called the PREDATOR (the organism that eats) and the other PREY (the organism being eaten).
Organisms preying on one organism will naturally opt for a substitute once the previous prey is no longer accesible. This is the case of a fungus-infected corn that is no longer edible for predators. Hence, the predators will hunt similar feed, which is GRASS in this case.
Which planet has a longer day than year?
OVenus
O Neptune
O Earth
Answer:
VENUS
Explanation:
On Venus, one rotation on its axis takes the equivalent of 243 Earth days and the planet's orbit around the Sun takes the equivalent of 225 Earth days.
Answer:
Venus, I think
Explanation:
So outta these three, Venus is the closest to the sun, so the year is the shortest. Venus is also the planet with the longest day averaging at 116d 18h, so I think that's the right one. Sorry if this is wrong
hope this helps:|
What are carbohydrates composed of and what is their main function in the body
Answer:
The Bottom Line
Carbohydrates serve several key functions in your body. They provide you with energy for daily tasks and are the primary fuel source for your brain's high energy demands. Fiber is a special type of carb that helps promote good digestive health and may lower your risk of heart disease and diabetes
Explanation:
HOPE IT HELPS
y Sem 2
L 4.5.2 Test (CST): Computer-Scored Unit Test
Question 14 of 25
Why did DNA technology lead to more use of cladistics?
A. It showed that the Linnaean system was very accurate.
O B. It showed that most traits result from genetic drift.
O C. It showed that different looking animals are actually related.
OD. It showed that gene flow happens between populations.
SUBMIT
Answer:
The correct answer is - C. It showed that different-looking animals are actually related.
Explanation:
DNA technologies help in developing the lineage of the organisms and more use of cladistics. DNA techniques help in determining which animals were closely related by studying the genetic change.
It is used to established new evolutionary relationships between different-looking animals as minor genetic changes may lead to morphological changes.
PLZ I'M NOT TRYING YO GOT TO SUMMER SCHOOL I WILL BRAINLIST YOU
true or false All arthropods belong to the Class Insecta
true or false All rodents belong to the phylum Chordata.
true or false All amphibians belong to the class reptilia.
true or false All primates are mammals.
true or false A lion belongs to the genus Felis.
true or false All mammals are primates.
true or false All Insects and lobsters are arthropods.
Answer:
1.)true
2.)true
3.)true
4.)true
5.)true
6.)false
7.)false
Explanation:
Answer:
False: All arthropods belong to the Class Insecta
True: All rodents belong to the phylum Chordata.
False: All amphibians belong to the class reptilia.
True: All primates are mammals.
False: A lion belongs to the genus Felis.
False: All mammals are primates.
True: All Insects and lobsters are arthropods.
Hope this helps :)
Purple flowers are an example of incomplete dominance between blue (B) and red (R) flowers. A purple flower is bred together with a red flower. What are the genotype percentages of their offspring?
Answer:
Purple = BR
Red = RR
B R
R BR RR
R BR RR
50% BR, 50% RR
Explain how a change in the environment can cause the disappearance of traits or possibly cause an extinction of a species.
Answer:
Changes in the environment may leave individuals less well adapted to compete successfully for resources such as food, water and mates. Sometimes an entire species may become unable to compete successfully and reproduce. These problems can lead to extinction.
Why does the author include the example of the Virginia northern flying squirrel?
To highlight the diversity of wildlife in the region
To contrast it with other more common species of squirrel
To demonstrate that protecting endangered species can be effective
To emphasize the importance of this species of squirrel in the ecosystem
Answer: The correct answer is To demonstrate that protecting endangered species can be effective
Explanation: The Unit text pointed out how the flying squirrel population had risen from 10 to over 1100, taking it off the endangered species list and proving that the methods were effective.
what is the main event that happens during metaphase?
in a
U1 A genetic change that occurs in a body cell of a
mouse will not contribute to the evolution of the
species because
(1) body cell mutations will cause the cell to die
before it reproduces
(2) the evolution of a species can result from
changes in reproductive cells, not body cells
(3) random changes are repaired by enzymes
before they are passed on to offspring
(4) the evolution of a species is caused by natural
selection, not genetic variation
Answer: 2
Explanation:
Answer:
2
Explanation:
I got this from my answer and here it what it said: Evolutionary genetic changes occur only in reproductive cells. Body Cells that undergo changes do not affect the evolution of that species
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The nucleus is surrounded by a semipermeable membrane. What would happen if this layer were permeable to most substances?
A. The DNA in the nucleus would be protected from harmful substances
B. Enzymes would not be able to speed up reactions in the nucleus.
C. The nucleus would not be able to communicate with the rest of the cell.
D. Large molecules would be able to enter and damage the nucleus.
Answer:
D
Explanation:
If the layer of nucleus were permeable to most substance, then the large molecules would be able to enter and damage the nucleus.
What is nucleus?It is a membrane-bound organelle present in the centre of cell in which thread like structures called chromatins are present which condenses to form chromosomes contains genetic material (that carries genetic information from parents to offspring).It controls all function of the cell.The layer or membrane around nucleus is called nuclear membrane is semi-permeable in nature which means that only specific molecules and ions can move across it.If the membrane would become permeable, then movement of all types of molecules will occur which will disturb the homeostasis (maintaining balance) of cell and can damage the nucleus.Hence, the correct option is: D. Large molecules would be able to enter and damage the nucleus.
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I need a argument to: Differences in the structure of protein molecules affect how they connect to other protein molecules. This can result in different traits
In meiosis II, _____. View Available Hint(s) In meiosis II, _____. chromosomes cross over to exchange genetic information chromosome number is reduced from diploid to haploid homologous chromosomes pair to ensure their even distribution to daughter cells sister chromatids are separated
Answer:
The correct answer is - sister chromatids are separated.
Explanation:
Meiosis is divided in two parts meiosis I and meiosis II. In the later part that is meiosis II is characterized by forming four haploid gametes by separating the sister chromatids in the two daughter cell.
Crossing over takes place in meiosis I that leads to recombination and reduces the chromosome number from diploid to haploid homologous chromosomes and then enters into meiosis II.
Which of the following is a potential benefit of a disturbance to a
community?
O a decrease in availability of resources
o the community may be unable to recover
O some species depend on disturbances
O links between the native species break
Answer:
I'm pretty sure it is 'some species depend on disterbences'
The potential benefit of a disturbance to a community is that some species depend on disturbances.
Importance of disturbance in a communityCommunity disturbance can be defined as a force, which may be biological or non biological, that results in mortality of organisms or loss of biomass.
Different types of disturbance that can affect a community include:
fires, storms, diseases, volcanic eruptions, earthquakes, contaminant spills, and land clearing.Some species depends on community disturbance because the cleared habitat caused by the disturbance leads to species movement into the newly cleared area, that is, secondary succession.
Learn more about secondary succession here:
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I need help
Claim: Yellow color is always an adaptive trait in a yellow environment.
Do you agree or disagree with this claim?
Yellow color is always an adaptive trait in a yellow environment I agree with this claim.
What is adaptive trait?Adaptive trait is defined as an element of the developmental pattern that makes it easier for its carrier to survive and/or reproduce in a succession of different situations.
Any heritable characteristic that enables a plant or animal to survive and procreate in its environment is referred to as an adaptation.
The process of modifying behavior, physiology, or structure to make it more suitable to an environment is known as adaptation.
It might also be described as the condition that a biological population has achieved after enduring modifications or changes.
There are three types of adaptive traits.
StructuralPhysiologicalBehavioralThus, yellow color is always an adaptive trait in a yellow environment I agree with this claim.
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Which of the following is something mulching does NOT do?
A. it covers the ground
B. it takes nutrients from the soil
C. it keeps in moisture
D. it limits weed growth
which of the following is good for a plant?
Answer:
c,d
Explanation:
hehe don't be mad at me
Which of the following is one of the most abundant elements in all living
things?
A. Helium
B. Oxygen
C. Silver
D. Gold
PLEASE HELP WITH BIOLOGY!! WILL GIVE BRAIN!!
Answer:
RR
Explanation: Two of the same alleles, and R=red
Explain why unreactive metals are good for making jewelry
Explanation:
Platinum, gold and silver are used to make jewellery because the metals used in jewellery are always be chosen on the basis of its reactivity. It should be unreactive so that the metal does not tarnish. Many metals used for jewellery are expensive as well because they are rare.
PLEASE ANSWER! 100 POINTS!
Which of the statements below is true about osmosis?
a. As the universal solvent, water loves dissolving solutes and will always go to a hypertonic area.
or
b. As the universal solvent, water loves dissolving solutes and will always go to a hypotonic area.
An organism made up of only one cell is called...
A. multicellular
B. unicellular
Answer:
unicellular
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism.
Answer:
Unicellular
Explanation:
Uni means consisting of one, and Multi means more than one (:
Which part of cell division is different in plant and animal cells?
A.cytokinesis
B.anaphase
C.mitosis
D.eukaryotic
Explanation:
Cytokines is different in plant and animal cells
Fruits grown in hot climates are usually less sweet than those grown in cooler temperatures. The high temperatures increase the rate of respiration in the plants, thus reducing the sugar content in some fruits. Why does increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant
Answer:
The correct answer is - Sugars produced in the leaves are used as an energy source instead of being stored in fruits.
Explanation:
The high temperature in climate leads to an increase in the respiration rate in the plants so they require more energy in the process.
They produce sugars in the leaves which leads to a decrease in the sugar content in the fruit as energy is the primary focus in such situation to survive in high temperatures.
explain the difference between absorption and transmission of light
Answer:
Absorption is the transformation of radiant power to another type of energy, usually heat, by interaction with matter. The transmittance t of a medium is defined by the ratio of transmitted radiant power to incident radiant power.
Explanation:
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