A cell membrane is selectively permeable when it
Question 6 options:
lets everything in.
keeps everything out.
allows some substances in and others out.
connects to other cells.
Answers
Answer: allows some substances in and others out
Answer: B
Explanation:
Related Questions
Please help me with this question!
Answers
1) a decrease in the amount of groundwater.
Copy the following base sequence of one strand of an imaginary DNA molecule:
AAT - GCC - AGT - GGT - TCG - CAC
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The following base sequence of one strand of an imaginary DNA molecule is AAT - GCC - AGT - GGT - TCG - CAC, so the other strand will be base sequence of TTA-CGG-TCA-CCA-AGC-GTG.
DNA (deoxyribonucleic acid) is the genetic material that encodes the instructions for the development, function, and reproduction of all living organisms. It is composed of two complementary strands that are arranged in a double helix structure, with the base pairs forming the rungs of the ladder. In the base sequence provided, AAT-GCC-AGT-GGT-TCG-CAC, each three-letter sequence (called a codon) corresponds to a specific trait that is expressed in the cell and carries out the particular function.
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help me pleaseeeeeeeeeeeeeeeeeeeee
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The organisms are related because of their adaptations to the harsh terrain of the dessert and their resistance to the extreme heat and cold of the desert’s days and nights.
Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z.
Answers
Answer:
X = 120
Y= 710
Z= 620
Explanation:
The Density of Rocks Part A Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z. Rock Balance Reading of Rock Mass (g) X triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 1 Y triple beam part of mass balance with top beam with pointer at 10, middle beam with pointer at 0, and lowest beam with pointer at 7 Z triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 6
y = 710
z = 620
1. Find the section in each article that describes the effects of climate change on forests.
Summarize what each article says in the chart below.
The GLAS is Half Full: Satellites
and Changing Tropical Forests
Climate Change and Ecosystems
Need quick answer
Answers
Answer:
Forest productivity is changing as a result of our warming climate. With warmer temperatures lasting longer, our plants have a longer growing season and more time to photosynthesize. This can lead to enhanced forest growth and carbon sequestration.
Explanation:
At first most scientists did not believe in cold fusion because
A.) It was too easy.
B.) It was not reproducible every time
C.) It produced too much heat.
D.) It destroyed matter.
Answers
Cold fusion experiments have been conducted at room temperature only because there was too much waste involved in the process.
1) What determines which
genes will be an advantage
and which ones will be a
disadvantage?
2) How does this experiment
illustrate Darwin's theory of
Natural Selection?
Answers
Answer:
1. While you do inherit certain genes from your mother and father, you will get separate versions of those genes meaning there will be advantages and disadvantages.
2. Charles Darwin, Natural selection explains how the genetic traits of a species may change over time. This may lead to speciation and the formation of a distinct new species.
Explanation:
1. Something that is an advantage towards the person achieving the genes is whether or not that trait is beneficial. For example, your body size can be determined by your mother or father which can lead to negative health or positive health. That can be a disadvantage (shape, being born with asthma, inheriting a mental illness). All can be achieved because of a parent.
2. Charles Darwin and his theory illustrate genes because as a parent hands over a gene during pregnancy it can be altered because it is a different version of that gene and that can lead to different species whether it is visible or not.
Is it possible for parents with dominant traits to have offspring with recessive traits?
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how are osmosis and facilitated diffusion alike?
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They both use passive transport. they don't need energy to move molecules through the plasma membrane.
What do you think makes an argument stronger? Explain 1- 2 things that would make an argument stronger and more believable?
(This is for science so try to make it science-related.)
Answers
Answer:
a diagram, speech photos and classifications
Explan
Which of the following is not a characteristic of mammals?
A. warm blooded
B. cold blooded
C. Have hair
D. Produce milk to feed their young
Answers
Answer:
Cold blooded
Explanation: all mammals are warm blooded they prouduce milk to feed their young and they have hair. Cold blooded animals are lizards and stuff related to that.
Answer:
The anwser is C. Cold blooded
Explanation:
most to all mammals are warm blooded, have hair, and produce milk for their young.
Hope this helps:)
please answer the questions below
Answers
1. The particles will speed up as they gain more kinetic energy from their surroundings and try to escape. They will collide with the balloon more and cause gas pressure which over time will cause the balloon to explode.
2. The particles will slow down
3. It has more density unlike water which expands when it’s frozen. Normally a liquid has more volume and less density when heated.
4. 10°C 50°F
5. 0°C 35°C/36°C ( trick question it’s not 10 degrees less Fahrenheit but Celsius for both)
6. The air particles slow down, losing their energy to the surroundings in an attempt to change state.
Why do regions/places have different types of climates? Try to give an example in your answer
Answers
Answer:
The climate of a region depends on many factors including the amount of sunlight it receives, its height above sea level, the shape of the land, and how close it is to oceans. Since the equator receives more sunlight than the poles, climate varies depending on its distance from the equator.
Answer,because of the bench marks
Explanation:
regions have different type of climates because of various reasons it could be determined by the fove benchmarks equator ,arctic circle,antartic circle,tropic of cancer and capricorn.
1.) The scientific name always consists of two words:
Group of answer choices
Genus and species
Family and species
Species and kindom
Domain and species
2.) Puma concolor is the scientific name for an American Mountain Lion, what is the species?
Group of answer choices
Puma
concolor
mountain lion
American mountain Lion
Answers
2.Puma
(Daily Question) If you were to choose what animal you would be what would the animal be? Comment your answers too!
Answers
Monkey
we are most similar to them but smarter so i think it would be fun to kinda relearn how to do basic stuff like making tools, since some monkeys can make stuff with a simple rock. AND OF COURSE TO SWING!!!
A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
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The text is divided into sections with subheadings. What does the section with the subheading "Taking Precautions" list?
a
tips for getting into the Guinness Book of World Records
b
tips for walking to the North Pole
c
tips for staying safe in the cold
d
tips for building a snowman
Answers
Answer:
b
Explanation:
it makes sence
How can the Swartz process be modified to work for bacteria?
Science
7th
Answers
How does the orientation of the North Pole change during the year?
Drag and drop the months to correctly match the descriptions.
points away from the sun, so the Northern Hemisphere gets its least sunlight
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter
points toward the sun, so the Northern Hemisphere gets its most sunlight
December,March,June, or September
(THIS IS SCIENCE NOT BIOLOGY)
Answers
The orientation of the North Pole changes as follows during the year:
December: points away from the sun, so the Northern Hemisphere gets its least sunlight.March: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer.June: points toward the sun, so the Northern Hemisphere gets its most sunlight.September: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter.How does the orientation of the North Pole change during the year?The orientation of the North Pole remains relatively fixed throughout the year. It does not change its position or direction.
The North Pole always points in the same direction in the northern sky, which is towards the North Star or Polaris.
However, the tilt of the Earth's axis in relation to its orbit around the Sun causes the amount of sunlight received by different parts of the Earth to vary throughout the year.
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someone help I appreciate it
Answers
Answer:
D. The nuclear membrane forms in telophase and breaks down in prophase.
Explanation:
The spindle fibers pull the chromosomes apart in prophase then bring them together in telophase.
The nuclear membrane forms in prophase and breaks down.
Hello, plz answer
What is meant by a pioneer species? Would you expect a shrub or dandelion (dispersed by wind-blown seeds) to be a more likely pioneer plant species? Why?
Answers
Mechanical energy can take on many forms, but these different forms can be categorized as either potential energy or energy of motion. The height an object is dropped from has an effect on the amount of energy in the object. Let’s conduct an experiment to see the effect.
:How does the height of an object affect the amount of mechanical energy it contains?
1:Variables What is the test variable?
Answers
The height of an object is crucial to the amount of energy something has because the higher up it is the most potential energy it has and kinetic energy it could have.
For example, if the height of a basketball was just a couple inches off the ground, it would not have a large amount of potential energy because because there is not much of a fall between the ball and the ground. However, if the ball was higher, there would be more potential energy because there is more room to fall.
---
"What is the test variable?"
The test variable, or independent variable in this case would be the height, as the scientist is changing the height in order to get different results in the total mechanical energy, which would be the dependent variable.
I may need some help on a lot of these questions
Answers
Answer:
number three is ghe real answer
Can someone please help me on this question?
The model below represents water.
~insert picture~
Based on the labels, what is the best description of this model?
A. X and Y represent molecules; Z represents an atom of water
B. X represents a molecule; Y represents a particle; Z represents an atom of water
C. X represents an atom; Y represents a molecule; Z represents a particle of water
D. X and Y represent atoms; Z represents a molecule of water
Answers
Answer: D. X and Y represent atoms; Z represents a molecule of water
Explanation:
Molecule - Group of two or more atoms
Water is H2O meaning two hydrogen atoms bound to an oxygen atom.
Answer:
The answer is D
Lesson 3, Interactions among living things
Be able to define and give an example of each.
1. natural selection
2. adaptations
3. niche
4. competition
5. predation, predator, prey
6. symbiosis: mutualism, commensalism, parasitism: parasite and host
Answers
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Plants are considered to be ___________ because they are the only living organisms that make their own food.
Answers
Answer:
heterotrophs
Explanation:
plants can prepare their own food due to a process called photosynthesis.
animals depend on other animals or plants to make their food so they are called autotrophs
Select your answer from the choices below, then write them on its appropriate column.
Answers
Answer: The duties that the students and community members have to be done to save our environment and resources
Explanation: My part as a students
1. Switch off classroom lights and fans when not in use.
2. Plant a tree (in vacant lot / backyard).
3. Join environment friendly groups.
4. Switch to non- plastic water bottles.
5. Switch off faucets in the school or park when not in use.
My initiative as a Community Member
1. Conserve water.
2. Throw garbages in the trash can.
3. Decrease the amount of paper you print.
4. Minimize the use of plastic when buying good
5. Volunteer for clean-up drives.
The correct options that have to be filled in its appropriate column are:
The part as a Student in conserving the environment.
Decrease the amount of paper you print.Switch off classroom lights and fans when not in use.Conserve water.Switch to non-plastic water bottles.Minimize the use of plastic when buying goods.My Initiative as a Community MemberVolunteer for clean-up drives.
Join environment-friendly groups.Plant a tree (in a vacant lot/backyard).Throw garbage in the trash can.Switch off faucets in the school or park when not in use.Thus, these are the correct options for the given columns.
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Write the WORD (not the chemical formula) that goes in each box of the diagram for the cellular respiration reaction. #3 = name the organelle.
Answers
2 is Glucose
3 is mitochondria
4 is Carbon Dioxide
5 is Water
6 is ATP
How does passive transport come into play in oxygen's journey through our body?
Answers
In the alveoli of the lungs, oxygen frequently diffuses from the air into the erythrocytes and blood plasma.
What is passive transport?Diffusion is a form of passive transport where molecules migrate from a high concentration to a low concentration, if you didn't know. Therefore, it follows that the oxygen content of the air must be higher than that of the blood.
Passive membrane transport methods are the most direct. Passive transport is a phenomenon that happens naturally and doesn't require the cell to use energy to move.
Diffusion is the process by which chemicals travel passively from a region of higher concentration to a region of lower concentration.
Therefore, Passive transport is a term that refers to both osmosis and diffusion. They don't need any power.
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