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The diagram is a model of one way that materials move into a cell.
Which sentence explains what happens in the first step of the process shown?
A. The cell membrane surrounds particles outside the cell.
B. Phospholipids in the cell membrane allow particles to pass through.
C. Transport proteins push particles into and out of the cell.
D. The vacuole opens and releases particles from the cell.
Answers
Answer:
the answer is A
sorry if wrong but positive the answer is A
Related Questions
An ecosystem that is balanced and in steady state is said to be ____?
Answers
Answer:
homeostasis
Explanation:
I think
Answer:
An Ecological balanced ecosystem.
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What is the name of things the Arrows are pointing to
Answers
Explanation:
well you have two different kinds of cells, the one on the left is a plant cell, B. cell wall, D. central vacuole, H. mitochondria, E. Nucleus, c. cytoplasm, A. cell membrane, F. chloroplast. For the Animal cell on the right, A. cell membrane, C. cytoplasm, D. peroxisome or lysosome, E. nucleus, H. mitochondria, G. rough endoplasmic reticulum, I. Golgi apparatus, j. smooth endoplasmic reticulum.
Why did the population of stag horn's increase during the black band infection?
Answers
The population of stag horn's increase during the black band infection because they were not affected and there was less competition.
What is the stag horn?The stag horn is a type of coral found in coral reefs.
The stag horn is branching cylindrical coral.
The black band disease of corals is a microbial disease which results in tissue degradation of corals
During the black band disease of corals, the stage horns were not affected.
Therefore, the population of stag horn's increase during the black band infection because they were not affected and there was less competition.
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One of the most important characteristics of a pesticide is how long it will stay deadly in the environment, a characteristic called ____.
Answers
Answer:
persistence
Explanation:
This characteristic is often describe as a way of
how long it will be useful, just like how long
will the pesticides could be useful in killing
the things that it is useful for in which is in
consistent with the given statement above.
Drosophila sechellia often eat Indian mulberry plants. Suppose the consumption efficiency of Drosophila is 20%, the assimilation efficiency is 40%, and the production efficiency is 30%. If Drosophila eat 50 kilograms of the plant, how much will be used to produce fly biomass
Answers
Answer:b,c,e
Explanation:
i just took the test
Seasonal changes are related to the length of a day and the height of the Sun in the sky. Describe how these two factors change throughout a year, and how this relates to the seasonal changes you observe in your home town.
Answers
Answer:
it presents a cause and effect perspective
Explanation:
The axis of the Earth rotates in relation to the Sun as it revolves around it, the height of our Sun as seen above the horizon changes as a result of this.
What are seasonal changes?Our Sun is seen to trace a higher route above the horizon in the summer and a lower path in the winter at any given place on Earth.
Since the Earth is slightly inclined toward the Sun during the summer, we are warmed and experience longer, brighter days.
Based on our location, the Earth is tilted away from the Sun throughout the winter, making the days colder, shorter, and with less sunshine.
Therefore, the tilt of a planet's axis and its orbit around the sun are causes of seasons.
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The graphs below show the average monthly rainfall in three ecosystems over three consecutive years. Which ecosystem is likely to
be the most stable?
Answers
the mouth of the shark is part of which organ system?
Answers
Answer:
Oral cavity
Explanation:
its first organ from which food enter
I need the answer quick please
Answers
Answer:I think that is correct I am not certain
Explanation:
How long until Chernobyl will be safe again?
Answers
plss help!!
Explain why oxygen is critically important to all living things. Then explain how humans, flatworm,s and a plant get the oxygen they need to survive
Answers
Answer:
Humans get oxygen via breathing through the nose or mouth.
Flatworms get oxygen through their pores via the process of diffusion.
Plants get oxygen through the stomata.
Explanation:
A climate shift changes a forested area with little annual snowfall to an area with snowfall most of the year. Natural selection would most likely favor a rabbit with which adaptation?
Answers
Answer:
it would be very snowy for 2 months
Explanation:
1.The digestive system relies on the______system to deliver the nutrients to the entire body of the organism.
2.The respiratory system provides oxygen to the ______system
3. Carbon dioxide from cell is delivered from the circulatory system back to the______system so it can exist the body
4. The circulatory system carries the waste from throughout the organism to the _____system, which takes care of excreting the waste from the organism:
5. The circulatory system and the _____system interact to deliver oxygen to and to remove carbon dioxide from cells.
Answers
Answer:
1_circulatory
2_circulatory
3_respiratory
4_excratory
5_respiratory
Testicular temperature control is accomplished through the actions of the.
Answers
Answer:
scrotum skin
Explanation:
testicular thermoregulation is controlled by heat regulation with the environment through the scrotal skin by passive convection and radiation
Which of the following lacks a nucleus?
A. a virus
B. a plant cell
C. an amoeba
D. an animal cell
Answers
Answer:
A. a virus
Explanation:
Virus does not have nucleus in it. Other all options contains nucleus. Hence, option (a) is the correct answer.
Answer:
a virus
Explanation:
a virus has no nucleus
What is the primary function of the cardiovascular system?
Group of answer choices
Carry nutrients throughout the body
Secrete enzymes and hormones used by organs in the body
Supply macromolecules needed by other parts of the body
Support and regulate the body's homeostasis
Answers
Answer:
support and regulate the bodies homeostatis
Explanation:
Homeostatis is a type of mode your body goes into when it has no food for a prolonged period of time your body essentially eats your own fat to live
hope i helped
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Answer:
A
Explanation:
This is what your veins do, hence this is part of the cardio (vascular) system, if you are vascular then your veins pop out
Compare between Atrium and ventricle in one point
Answers
See the attached file!!(≡^∇^≡)
which two of the following arrows show matter moving from primary consumer to an omnivore
Answers
Answer:
A
Explanation:
Because
Caribou is a primary consumer
Bear is an omnivore
Which step occurs in the e site of the ribosome during translation?.
Answers
Biotic potential is anything that increases
the survivability of a population. Biotic
potential can be
B. both biotic and abiotic
A. abiotic only
C. biotic only
D. neither biotic nor abiotic
of Scimce. All Rights Reserved.
Answers
Answer:
B. both biotic and abiotic
Explanation:
Anything that helps a organism to increase its survivability can be living (biotic) or non-living (abiotic) thing.
Abiotic things like plenty of food or biotic things like organisms better reproduction
Which of the following is not a concern associated with fossil fuel dependence?
a. global warming
. b. rising prices
C.
increased competition
d. increased development
Please select the best answer from the choices provided
A
B
О с
Answers
Answer:
D
Explanation:
It is not A. because fossil fuels contribute to global warming
Not B. since fossil fuels are finishing the prices are rising to buy fossil fuels
Not C. since less fossil fuel means more competition
D. because it is the only one left and there are other factors that increase development as well
Give two examples of cells that relate their shapes with their functions.
Answers
Answer:
alle and cell's
Explanation:
this is the answers you need to solve
If your body temperature gets too high, why is it dangerous?
Answers
Answer:
If your body temperature gets too high you can get a heat stroke which can result in death. When your body temperature is high your likely to get a fever, when you have a fever its harder for your body to fight bacteria and viruses.
Answer:
Hyperthermia is a condition that results in an abnormally high body temperature.
Hyperthermia occurs when your body absorbs or generates more heat than it can release.
Heat fatigue, heat syncope (sudden dizziness after prolonged exposure to the heat), heat cramps, heat exhaustion and heat stroke are commonly known forms of hyperthermia.
Explanation:
It's a life-threatening condition that causes your body temperature to rise above 104 degrees Fahrenheit. It causes problems in your brain and other organs. Heatstroke is especially dangerous if your body temperature rises above 106 degrees Fahrenheit.
In science, facts question 1 options: a) are absolute. b) may change. c) mean very little. d) are more important than theories.
Answers
In science, facts may change with time if new discoveries contradict them.
What are scientific facts?Facts, according to science, are observations that have been repeatedly found to be true.
However, that an observation has been found to be true on several occasions does not mean that it cannot change or become discarded totally.
Because science is dynamic, what is known as a fact today may be modified or discarded tomorrow due to new discoveries or observations.
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100 POINTS AND I WILL BRAINLIST!!
In Guinea pigs black is dominant to white
a. If you cross two heteroxenous guineapigs what will be the genotypic and phenotypic ratios of their offspring?
b. If you cross one of the black offspring with a white guinea pig you get 12 black offspring what is the genotype of this black guinea pig?
c. If you cross another black offspring with a white Guinea pig you get 7 black offspring and 6 white offspring what is the genotype of this black Guinea pig
Answers
Parents: BB x bb
Gametes: B, B x b, b
F
1
generation: All Bb (black coloured guinea pig)
Selfing: Bb x Bb
Gametes: b, b x B, b
F
2
generation: BB, Bb, Bb and bb
The offsprings produced in the F
2
generation are:
BB- black coloured guinea pig
2 Bb- black coloured guinea pig
bb- white coloured guinea pig
The genotypic ratio is 1:2:1. (1 BB, 2Bb and 1 bb)
The phenotypic ratio is 3:1 (3 black and 1 white)
a population of alligators
lives in a wetland habitat.
which of these describes a
density-dependent factor
that could affect
a. there's is a decrease in prey animals
b.human introduce pollutants into the water of the ecosystem
c. a drought that lasts for several months
d. a hurricane passed through the area
Answers
A density-dependent factor that could affect, there's is a decrease in prey animals Thus, option "A" is correct.
What is Population Density?To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area.
The unit of land area should be square miles or square kilometers.
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Carla did an experiment by placing a piece of smooth, clear glass and a piece of smooth, black stone under a lamp for twenty minutes. Which prediction will most likely be supported by Carla’s experimental results?
The glass will feel warmer than the stone after twenty minutes.
The stone will feel warmer than the glass after twenty minutes.
The glass will reflect all of the light after twenty minutes.
The stone will reflect all of the light after twenty minutes.
Answers
Answer:
The glass will reflect all the light after twenty minutes.
Explanation:
because glass surface is smooth.
The prediction that is most likely to be supported by Carla's experimental results is that the glass will feel warmer than the stone after twenty minutes.
Why is it taking so long?This is because glass will absorb and transfer heat more quickly than stone since it is a far better conductor of heat.
The temperature of the transparent glass will rise even faster as a result of its increased ability to absorb more of the lamp's light.
The black stone, on the other hand, will absorb less light and won't be able to transmit heat as rapidly as the glass, thus after 20 minutes it will be colder.
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Compare the gravitational pull of the earth to that of the moon, the planets, and the sun.
Answers
What abiotic aspects of an ecosystem can be affected by the biotic aspects?
Answers
The abiotic factors refers to things which are not to able to respire, breathe, move, excrete in a specified place. The living organisms will constitute the biotic factors which able to respire, breathe, move, excrete in a specified place.
What is ecosystem?
An ecosystem is defined as all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controlling the biotic factors of an environment.
Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem.
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What are the blood vessels called that carry blood to the heart?.
Answers
Veins
Explanation:
The vena cava and the pulmonary vein carry blood to the heart