The ways through which molecules can pass through phospholipid membranes is/are
Answer: there are atoms
.pls help fast
Is the fossil record complete for humpback whales? Explain your answer.
Answer:
No, the fossil record is not complete because with further fossil discoveries, and more study, it may continue to tell paleontologists how modern whales came to behave the way they do.
Explanation:
what is the primary difference between diffusion and osmosis
Long answer here!
In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.
The movement of particles (such molecules or ions) from a region of higher concentration to a region of lower concentration is known as diffusion.
Thus, It happens in a variety of media, including gases, liquids, and solids. The inherent propensity of particles to travel down their concentration gradient in search of equilibrium is the driving force underlying diffusion.
On the other hand, osmosis is a particular kind of diffusion that entails the passage of water molecules over a membrane that is only permeable in certain places. It happens when the solute concentrations on opposite side of the membrane differ.
Thus, The movement of particles (such molecules or ions) from a region of higher concentration to a region of lower concentration is known as diffusion.
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All volcanoes have at least one vent, or opening. Which of the following does not erupt through volcanic vents?
A. lava
B. liquid water
C. gases
D. ashes
Please help me.
In food chains and webs, what trophic level must you have more of than others?
Answer:
Primary producers
Explanation:
In any food web, energy is lost each time one organism eats another. Because of this, there have to be many more plants than there are plant-eaters. There are more autotrophs than heterotrophs, and more plant-eaters than meat-eaters.
this is just nonsense
Which statement is true?(1 point) The Calvin cycle is the light-independent stage of photosynthesis and occurs in the thylakoid membrane. The Calvin cycle is the light-dependent stage of photosynthesis and occurs in the stroma. The Calvin cycle is the light-dependent stage of photosynthesis and occurs in the thylakoid membrane. The Calvin cycle is the light-independent stage of photosynthesis and occurs in the stroma.
The true statement about calvin cycle is "The Calvin cycle is the light-independent stage of photosynthesis and it occurs in the stroma"
Photosynthesis is generally the process whereby cells of autotrophic organisms obtain their food in form of sugars in the presence of sunlight. The photosynthetic process occurs in two stages namely: light dependent and light independent stage. The light dependent stage is the first stage, which occurs in the thylakoid membrane of the chloroplast. In this stage, ATP and NADPH is produced for the second stage.LIGHT INDEPENDENT STAGE is also known as CALVIN CYCLE. It is so called because it does not need light to occur. This stage occurs in the STROMA, where the glucose is synthesized.Therefore, the true statement about calvin cycle is "The Calvin cycle is the light-independent stage of photosynthesis and it occurs in the stroma"Learn more at: https://brainly.com/question/17600594?referrer=searchResults
Answer:
For connexus students: Cell Work Unit Test
Explanation:
1. 12
2. Chlorophyll breaks down because there's less sunlight.
3. The Calvin-Cycle is light independent (does not need sunlight)
4. light
5. C6 H12 O6 + 6O2 + 6H2O + energy
6. Pyruvic Acid+ NADH --> Lactic Acid+ NAD+
7. Acetyl-CoA joins with a large molecule called oxaloacetic acid
8.Electrolosis
9. ATP
10. Krebs Cycle
11. Oxygen
12. 12
13. Ectotherms cannot insulate- and can only control their body temperature by choice.
14. Shivering
Can someone please help me . Will mark brainliest !!
Answer:
1. 75%
2. 0%
3. 25%
4. 25%
Does an animal cell have a cell wall?
Answer:Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall
Explanation:
Answer:
No
Explanation:
Animal cells have cell membranes, but not cell walls. Cell walls are much more structured and are only present in plant cells who also have a cell membrane.
How does our lung's architecture ensure that very little oxygen is wasted?
Answer:
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Explanation:
Hope This Helps.
i need help this is due to 4:00PM!!
Mai filled two balloons with the same amounts of water, sugar, and yeast. She put one on a table in the classroom. She put the other on a sunny windowsill. Which reasoning explains why Mai observed that the balloon in the window grew larger in size?
The windowsill area is cooler.
The windowsill area is warmer.
The classroom table area is warmer.
The classroom table area is the same temperature as the windowsill.
Answer:
the windowsill area is warmer
Explain
yeast reacts with heat
the windowsill area is warmer
kinetic energy potencial energy both relate to :
A) light
B) sound
C) heat
D) motion
Answer:
Motion
Explanation: Energy stored in an object due to its position is Potential Energy. Energy that a moving object has due to its motion is Kinetic Energy.
Hope this helps, have a nice day
Answer:
D) motion
Explanation:
Kinetic energy is energy of being in motion, and potential energy is the energy of having potential to move.
*PLEASE READ CAREFULLY*
Which statement about
energy is true?
1) Energy can be destroyed.
2)Energy can be created.
3) Energy cannot change form.
4) Energy cannot be created or destroyed, but its form can change.
Answer: 4
Explanation: I take biology now in college my senior year and what I’ve learned is energy cannot be created nor destroyed what is form can be changed and you literally can Google that and it’ll tell you the exact same thing
What type of organisms are most likely to be found as fossils?
Organisms with hard body parts such as a mineralized shell are much more likely to become fossilized as har parts are not fed by scavengers.
Types of organisms that are most likely to be found in the fossils have completely made up of hard bodies or at least some hard body parts.
The deposit of sediments and the finer the sediment deposited the likelier fossilization is to occurThe hard parts of organisms, for instance, bones, and teeth have had becoming fossils.Scavengers normally leave such hard parts, however, they also decay with time but this gives more time to be buried in sediments.These hards parts have better chances than the organisms with soft body parts to be found in fossils.
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The increasing demands for fossil fuels has led governments and businesses to
consider several possibilities to solve the energy crisis. Which solution will reduce the
impact of this crisis on the environment and future generations?
(1) increase the number of drilling sites for crude oil in North America
(2) build more power plants away from population centers
(3) limit the number of people in each vehicle
(4) develop alternative fuel sources that can be produced from renewable
resources
The rise of fossil fuels demands various nations has created problems for the government to meet the increasing supplies as fossil fuels are fast depleting and heavily pollute the environment at large.
The government is trying to build more alternative fuel sources and produce some renewable resources in case of fossil fuels get depleted completely.Hence the option 4 is correct.
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Fog is a cloud that has___?
A small vertical extent
Particles made of ice crystals
No ability to produce rain
It’s base at or near the ground
Answer:
D) its base at or near the water
can you explain in brief about gigatism and dwarfism
Gigantism is a condition caused by excessive secretion of STH(somato trope hormone) before puberty. Individuals reach heights of about 2 meters.
Dwarfism(hypophyseal dwarfism) is caused by hyposecretion of STH before puberty. Individuals reach heights of about 1,20-1,30m
We have heard that we are a product of our DNA. Specific genes in the
chromosomes we inherit from our parents help determine the traits we
inherit. Using the illustration identify the letters that represent the
three structures mentioned: DNA, chromosome, and gene
Answer:
A.) A.DNA; D.Chromosome; E.Gene
Explanation:
The human genome is made up of 23 pairs of chromosomes that are found in the cell's nucleus and one tiny chromosome that is found in the mitochondria. Everything a person needs to grow and operate is encoded in their genome.
What is the genome organization in cell?The single linear bits of DNA that make up genomic DNA are connected to a protein called a nucleoprotein complex.
Chromosomes are made of a DNA-protein complex, and the 23 chromosomes found in the cellular nucleus are where almost all the genomic DNA is dispersed.
A genomic organization is the division of DNA molecules into chromosomes and their linear arrangement.
In addition to the three-dimensional structure of chromosomes, “genome organization” can also refer to the arrangement of DNA sequences inside the nucleus.
Therefore, A.DNA; D. Chromosome; E. Gene
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What is the primary source of energy that flows through food webs?
Group of answer choices
sun
herbivores
consumers
decomposers
Answer:
Sun
Explanation:
The sun sends out energy to plants then herbivores eat the plants
1.
In which order is energy transferred through a food chain?
A. Sun → plants → animals
B. Sun animals → plants
C. plants - Sun animals
nlants animals - Sun
D
Answer:
It is A
since the energy source is the first thing you need to make the planet habitable, and in order for the animals to live, you need plants like trees to give air. so the cycle is Sun-Plant-Animal
why is dowry system a social problem
women and girls in India and other nearby countries where dowry is still prevalent. Dowry can put great financial burden on low income families. Often times, instead of being a gift, it more of a demand from bridegroom's family.
Dowry system can also lead to many unwanted situations
Answer:
Dowry system is one of the contributing factors toward social problems that effects women and girls in India and other nearby countries where dowry is still prevalent. But however, families with low income or under the poverty line, dowry is a huge problem. Dowry can put great financial burden on low income families.
The most common cause of biliary ductal obstruction is the presence of ductal. Cyst. Tumor. Stone. Stricture.
Answer:
tumor
Explanation:
Do lipids dissolve in water? Why or why not?
Answer:
Because they are nonpolar and water is polar, lipids are not soluble in water. That means the lipid molecules and water molecules do not bond or share electrons in any way.
Explanation:
When calcium levels in the blood are too low, the body releases a hormone that removes calcium from the bones. A
person who suffers from a certain type of thyroid disease will often have low blood calcium and brittle bones because
the body is taking the calcium from the bones. The afflicted person will typically see an endocrinologist, who studies
hormones, and an orthopedist, who studies bones. What do these two doctors have in common?
A) They both focus on hormone levels.
B) They both focus on bone density.
C) They both focus on calcium levels.
D) They both focus on the thyroid.
Answer:
they both focus on calcium levels
Explanation:
on edge
These two doctors have in common is :
C) They both focus on calcium levels.
DoctorsAn Endocrinologist is a doctor who has extraordinary preparing in diagnosing and treating clutters of the endocrine framework (the organs and organs that make hormones). These disarranges incorporate diabetes, barrenness, and thyroid, adrenal, and pituitary organ issues.
An orthopedist a specialist who specializes within the department of medication concerned with the adjustment or avoidance of distortions, disarranges, or wounds of the skeleton and related structures An orthopedist treated her knee damage.
These two doctors have in common is that they both focus on calcium levels.
Thus, the correct answer is C.
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 what is the volume of a spear with a radius of 7
Answer:The volume of a sphere whose radius is 7 cm is V = (4/3)*(pi)*r^3 or V = (28/21)^7^3 = 457.3333 cc.
Explanation: Your Welcome!
Who defined the term 'population education for the first time?
Answer:
Professor Solar Wayland
Plzzz help!!! I will give brainliest
Answer:
C
Explanation:
Two amoebeas because when a amoebea splits it has the same information copy as its parents
A cross section of a seed is shown.
Which is represented by the letter X?
embryo
seed coat
stored food
leaf
Answer:
Embryo
Explanation:
I took the text
Answer:
embryo
Explanation:
Muscles in a kangaroo’s legs work because of the cells that make up the muscle. Which component of cell theory does this best illustrate?
A. All living things are made of cells.
B. Cells are the basic unit of structure and function of all living things.
C. All cells come from other cells.
D. Cells are generated from nonliving materials.
Answer:
id say b. cells are the basic unit stricture and function of all living things.
Explanation:
the kangaroo uses his muscles and his muscles are made of cells
Answer:
b is correct
Explanation:
:)
5. The following cell structures are located within cells that make proteins. Which description
best explains the relationship among these cell structures in making a protein?
nucleus
• ribosome
• endoplasmic reticulum (ER)
A. nucleus makes protein → protein winds through the ER → protein folds into active shape
B. nucleus directs ER to assemble the protein → ribosomes surround protein → protein
folds into its active shape
C. ER creates protein → DNA in the nucleus codes for ribosomes to surround protein →
protein folds into its active shape
D. DNA in nucleus codes for protein protein assembled in ribosomes and moves to ER →
protein folds into its active shape
Answer:it’s d
Explanation:
DNA in nucleus codes for protein protein assembled in ribosomes and moves to ER →protein folds into its active shape best explains the relationship among these cell structures in making a protein.
What are the functions of DNA?Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix.
There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T).
The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.
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When the genetic material found within an offspring is diverse, what type of reproduction is responsible?
a
Sexual reproduction, because the genetic material comes from both parents
b
Sexual reproduction, because the genetic material comes from one parent
c
Asexual reproduction, because the genetic material comes from both parents
d
Asexual reproduction, because the genetic material comes from one parent
Answer:
a
Explanation:
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