Answer:
Explanation:The phospholipid bilayer formed by these interactions makes a good barrier between the interior and exterior of the cell, because water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane. Can water cross the plasma membrane at all?
It also helps the cell move things in and out. The cell membrane is made of what is called a phospholipid bilayer, which means it has two layers of phospholipids. ... This allows the phosphates to be exposed to water, either in the cell or the environment, while the lipids are protected from water Lipids are essential for all life on Earth. They play many important roles in maintaining the health of an organism. Arguably the most important function lipids perform is as the building blocks of cellular membranes. Other functions include energy storage, insulation, cellular communication and protection.Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible.
24. Name two types of pathways that help a body maintain homeostasis, and an example of each.
B
I
U
Font Family
Answer:
See the answer below
Explanation:
Homeostasis refers to the maintenance of relatively constant internal body processes. This is done in two ways
Negative feedbacksPositive feedbacksNegative feedback returns body processes back to normal after the process has been breached. An example is when the body temperature becomes too high or too low. At too high temperature, vasodilation of the skin's blood vessels occurs and more heat is lost to the surrounding from the skin, sweat is also produced by sweat glands and evaporation of the seat causes cooling. At too low temperature, vasoconstriction occurs leading to the conservation of more heat. The muscles also shake to generate more body heat
Positive feedback ensures that a breach of body processes reaches completion. An example is when a pregnant woman starts laboring. The increase in the amount of oxytocin in the blood leads to the contraction of the uterus consequently leading to the opening of the cervix. More and more oxytocin leads to more frequent and stronger contraction of the uterus untill the baby is born.
20 pts!!!!!
What additional restriction enzyme would be used to cut out another gene flanked by a different restriction site?
Answer:
a clone
Explanation:
Restriction enzymes are DNA-cutting enzymes. Each enzyme recognizes one or a few target sequences and cuts DNA at or near those sequences. Many restriction enzymes make staggered cuts, producing ends with single-stranded DNA overhangs. However, some produce blunt ends.
This process removes hunks of DNA and replaces them with new ones to help people
Answer:
Gene editing
Explanation:
Hope this helped! MARK BRAINLEST!!
What is the difference between a molecule and macromolecule
Explanation:
The molecule is the smallest unit of the substance that retains its characteristic properties. The macromolecule is such a unit but is considerably larger than the ordinary molecule, which usually has a diameter of less than 10 angstroms (10−6 mm).
The answer please will give brainliest
Answer:
true
Explanation:
Answer:
false
Explanation:
as you go deeper into the earth's crust the core gets hotter due to magma underneath it, the pressure also increases
How does the name photosynthesis offer clues about the meaning?
Answer:
The word photosynthesis contains clues to its meaning: the prefix photo comes from a Greek word meaning “light.” The root synthesis comes from another Greek word meaning “to put together.” Through photosynthesis, plants use the energy of light to put a meal together using water and carbon dioxide.
Explanation:
PLEASE HELP
In pea plants, yellow seeds are dominant over green seeds. What would be the
expected genotypic ratio in a cross between a plant with green seeds & a plant that
is heterozygous for yellow seed color?
4:1
1:3
1:1
1:2:1
Evaluate the impact of human activities on air and water quality
QUICK PLZ IM ALMOST DONEEEEE
Answer:
its all bad
Explanation:
pollution is everywhere due to cars factorys and everything people do is bad
LOTS OF POINTS AND BRIANLIESTTT 6. How is the liquid water different from the ice? *
1 point
The freezing point of the ice is lower.
The temperature of the liquid water is lower.
o
The average kinetic energy of the ice particles is lower.
a
The motion of the particles that make up the water is slower.
Answer:
the answer will be B : the tempreature of the liquid water is lower
pls answer ..........
Explanation:
1. Beetroot and Parsnip
2. Corn and Rice
3. Bamboo and Sugarcane
4. Maize and Sugarcane
Answer:
Examples of plants with the taproot system
. Beetroot
. Burdock
. Carrot
. Sugar beet
. Dandelion
. Parsley
.Parsnip
. Poppy mallow
Examples of plants that have fibrous root system include: grass,wheat, rice, marigold, white clover, maize, banana, millet, bamboo and onion .
Examples of prop roots include benghalensis ( Banyan tree) , Rubber plant, Corn etc.
Examples of stilt roots include Sugarcane , maize , Sorghum, Rhizophora.
I hope it helps ❤❤
How is phosphorus NOT returned to the abiotic portion of the environment?
A. Death and
decomposition
B.animal waste
C. Fertilizer use
D.acid rain
Answer:
D) acid rain
Explanation:
Phosphorus is not returned to the abiotic portion of the environment through d. acid rain.
Abiotic portion of the environment are the nonliving components such as soil, water, or air.
Phosphorus is an essential element in any ecosystem that supports life and the functioning of the ecosystem. Phosphorus is used and returned into an ecosystem through various means in the phosphorus cycle.
Animals and plants are composed of phosphorus. When they die and decompose, phosphorus is returned to the aortic portion of the environment. Also, it is returned via the waste of animals.
Fertilizers containing phosphorus also add phosphorus back to the abiotic portion of the environment.
Acid rain occurs when Sulphur dioxide and nitrogen oxides mix and interact with oxygen and water in the atmosphere to form acidic compounds released as precipitation to the environment.
Therefore, phosphorus is NOT returned to the abiotic portion of the environment through d. acid rain.
See image of phosphorus cycle in the attachment below.
Learn more about phosphorus cycle here:
https://brainly.com/question/11530767
POSSIBLE POINTS: 2 A student wondered if different types of plants would produce different amounts of oxygen. A pea plant, a fern, and a cactus were growing in equal-sized containers with equal amounts of soil. The student measured the amount of oxygen produced by each. Identify one factor (other than the size of the container and the amount of soil) that should be held constant in this experiment. Explain why this variable needs to be held constant.
Answer:
The correct answer would be - the amount of water they get.
Explanation:
In any research or study, there are some variables other than the independent variable that can affect any experiment directly or directly. To avoid such conditions these variables are held constant.
In this case, the production of oxygen can be affected in all three plants due to various variables also such as the amount of soil, size of the container, amount of water all three different plant gets, and others.
Thus, the correct answer would be - the amount of water should be held constant.
The chart below shows data from butterfly populations over a four-year period. Use the data in the chart to answer the question that follows.
Butterfly Color
Year 1
Year 2
Year 3
Year 4
Year 5
Red
100
107
180
192
?
Blue
102
108
33
10
?
White
120
118
175
188
?
Yellow
110
107
39
17
?
Which of the following statements is a valid conclusion based on the data table above?
A.
In year 5, the red population will decrease because a change in the habitat occurred in year three that favored red butterflies.
B.
In year 5, the blue population will decrease because a change in the habitat occurred in year three that favored blue butterflies.
C.
In year 5, the red population will increase because a change in the habitat occurred in year three that favored red butterflies.
D.
In year 5, the blue population will increase because a change in the habitat occurred in year three that favored blue butterflies.
Answer:
red
Explanation:
How are meiosis and mitosis different?
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
I hope it's helpful!
Answer:
Explanation:
Mitosis produces 2 diploid cells that are identical to each other.
So like :
o
o > 8 >
o
While Meiosis produces 4 haploid cells that are unique , not identical.
So like : o
o 8 o
o > 8 >
o 8 o
o
I attached something to help you understand better as well.
Hope this helps!
If you have any questions or concerns please let me know.
describe selective breeding in your own words
Answer:
This is a type of breeding in which two organism having some special features are choosne to breed with each other to make a single organise which has both features accumulated
What weakens limestone
Answer:
im not smart but i love chicken
Explanation:
bc
Answer:
carbonic acid
Explanation:
whats the location and structure for dendrite
Answer:
it is located in the cell body of a neuron. it's thread like structure that parts from Dendron.
what effect does the gradual decrease in ph from 13 to 1 have on the action of amylase
Answer:
: A decrease in pH is too acidic compared to optimum pH for amylase activity.
Streams have a detectable current, while rivers do not.
Please select the best answer from the choices provided:
True or False
Answer:
false
Explanation:
you can detect the current in the river
Answer:
False
Explanation:
Edge 2021
Name 3 ways we can protect and maintain stability within an aquatic ecosystem? please help
Explain the characteristics scientists use when
observing organisms and placing them in the six
kingdoms
why skin is the largest organ in our body? and why skin classified as organ?
Answer:
1) Skin is the largest organ in the body because it surrounds the whole human body.
2) It is classified as an organ because of the fact that it is many cells working together to achieve the same goal and that is basically what an organ does.
How to determine the inputs and outputs of carbon dioxide in the atmosphere.
Answer:
change in concentration maybe...
In the experimental set up above there are bubbles being
produced. What gas would be inside the bubbles?
Answer:
carbon dioxide
Explanation:
did humans evolve from neandethals
I WILL MARK YOU BRAINELEST Describe an example of convection that occurs on Earth.
Answer:
Breeze. The formation of sea and land breeze form the classic examples of convection. Going by the definition of convection, the molecules at a higher temperature displace the ones at a lower temperature. Similarly, in the afternoon, the surface of the land near the sea is warmer as compared to in the evening.
Explanation:
hopes this helps
The image to the left is
a simple circuit. What
part of the circuit is
considered the "load"?
A. The battery
B. The wire
C. The light bulb
D. The switch
pyright © 2003 - 2021 Acellus Corporation. All Rights Reserved.
Answer:
C
Explanation:
The load is the lightbulb just learnt this 1 week ago
The lightbulb part of the circuit is consider the "load"
What is simple circuit?
A simple circuit is a circuit that contains the three basic components needed for an electric circuit to function. The three basic components are a source of voltage, a conductive path, and a resistor.
When a light bulb connects to an electrical power supply, an electrical current flows from one metal contact to the other. As the current travels through the wires and the filament, the filament heats up to the point where it begins to emit photons, which are small packets of visible light.
Hence, option C is correct.
Learn more about simple circuit here:
https://brainly.com/question/22667470
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Select all the statements that correctly describe the differences between DNA and RNA.
A RNA nucleotides contains uracil instead of thymine as in DNA.
B) DNA consists of two strands of nucleotides while RNA has one.
C) RNA consists of phosphate group while DNA has nitrogenous group.
D) DNA nucleotide comprises deoxyribose sugar while RNA consists of ribose sugar.
E) DNA nucleotides contain an adenine-uracil base pairing.
F) DNA is more complex than RNA because it has more types.
Which graphs cannot represent a proportional relationship? Explain how you know.
PLEASE HELP THIS IS DUE AT 11pm
Answer:
B and C
Explanation:
they do not cross (0,0) so they are not proportional
(hope this helps you)
If a student tested the bubbles collected in the test tube what would they find they are made of and how do you know?
Hello. This question is incomplete. The full question is:
A student prepared two beakers with identical sprigs of a water plant as shown below. She placed Beaker A in the shade and the Beaker B beside a fluorescent lamp. She then systematically changed the distance from the beaker to the lamp. She counted the bubbles given off by the plants in each beaker.
If the student later tested the bubbles collected in the test tube, What would she find they are made of?
Answer:
oxygen
Explanation:
The bubbles are oxygen and we can say that because this is the gas that plants release through photosynthesis. In this case, we can also confirm that the plant that was exposed to fluorescent light, showed more bubbles than the other plant, since the light allowed the photosynthetic rate of this plant to be higher, releasing more oxygen to the environment.