What is the two-layer membrane surrounding the nucleus that controls what materials go into and
out of the nucleus?
Answer:
Is the nuclear envelope.
Explanation:
An survey makes use of evidence, such as the footprints left behind by animal, to follow animals that re difficult to track.
The correct word to fill the gap would be indirect.
In other words, an indirect survey makes use of evidence, such as the footprints left behind by animals, to follow animals that are difficult to track.
Ecological surveys are of 2 types:
DirectIndirectDirect ecological surveys have to do with studying phenomena directly and recording whatever that is observed.
Indirect surveys involve an indirect way of studying phenomena. The signs left by phenomena are observed and logically used to make deductions about such phenomena.
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Distinguish between smooth endoplasmic reticulum and rough endoplasmic
reticulum (1 point)
Smooth endoplasmic reticulum has ribosomes attached to
its surface
Smooth endoplasmic reticulum has vacuoles attached to its
surface
Rough endoplasmic reticulum has ribosomes attached to its
surface
Rough endoplasmic reticulum has vacuoles attached to its
surface
The smooth endoplasmic reticulum is different from rough endoplasmic reticulum as the rough endoplasmic reticulum has ribosomes attached to its surface which are absent in smooth endoplasmic reticulum. Thus, the correct option is C.
What is Endoplasmic reticulum?
Endoplasmic reticulum (ER) is a large, dynamic structure which serves for many roles in the cell. There are two types of ER which are Smooth Endoplasmic Reticulum (SER) and Rough Endoplasmic Reticulum (RER). The diverse functions of the ER are performed by distinct domains present in the ER consisting of tubules, sheets and the nuclear envelope.
Rough endoplasmic reticulum contains ribosomes on its surface and synthesizes protein, whereas the smooth endoplasmic reticulum does not contain ribosomes and functions to make lipids and detoxify the cell. Large amounts of SER are found in the cells which participate in lipid metabolism and detoxification of the body, such as liver cells.
Therefore, the correct option is C.
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How did mendel prove the law of segregation.
What are the effects of enzymes on chemical reactions? Select all of the answers that apply.
Answer:
Enzymes will make chemical reactions go faster. Enzymes are catalysts which will lower the activation energy of a chemical reaction. Activation energy is the energy needed to get a reaction going.
Explanation:
what are the selections?
how are unicellular and multicellular organisms alike
Answer:
that they exhibit all the functions of life
Explanation:
Which of the following can be used to assess the biological diversity of an area?.
Answer:
genetic variation within each species and number of species present
Explanation:
Neural impulses are transmitted to bipolar cells when light energy enters the eye and triggers ________ in the rods and cones.
Neural impulses are transmitted to bipolar cells when light energy enters the eye and triggers CHEMICAL CHANGES in the rods and cones. This process is known as phototransduction.
Phototransduction refers to the process by which photoreceptors convert light into electrical signals.
Photoreceptors (i.e., rod and cone cells) are specialized cells in the retina of the eye which are capable of converting light into electrical signals and thus trigger different physiological processes.
Phototransduction is triggered by the activation of signaling proteins, that open or close ion membrane channels in photoreceptor cells.
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Someone plz help me :(
What is the function of the respiratory system?
to transport materials in the body
to break down food
to breathe
to rid the body of waste
Answer:
To breathe... Respiratory System
Explanation:
Food is broken down by the Digestive System
The body is rid of waste by the Excretory System
Materials are transported by the Circulatory System
what part of the kidney can be under hormonal control?
Answer:
The kidneys make two main hormones, vitamin D and erythropoietin.
A(n) ______ gene is a type of gene that regulates development and that, when mutated, leads to organisms with structures in abnormal or unusual locations on their body.
A (n) homeotic gene is a type of gene that regulates development and that, when mutated, leads to organisms with structures in abnormal or unusual locations on their body.
A homeotic gene is a gene that intervenes in the developmental program that determines the location of structures along the anteroposterior axis.
The determination of the anteroposterior axis is one of the earliest events in development, and it guides the remaining processes of organogenesis. Once homeotic genes define the identity of the body segments, they code for proteins (homeodomain) that are responsible for activating other genes.These genes ultimately trigger the formation of the organs or limbs of this segment.Genes that control the position of organs have been called homeotic genes, while mutations that affect these genes are known as homeotic mutations.Therefore, we can conclude that homeotic genes are expressed in the body regions that will house the growing structures.
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To observe the surface of an ant you would use...
a dissecting microscope
a scanning electron microscope
a transmission electron microscope
a compound light microscope
what is the difference between volume measurements and capacities
PLS help me!!!!
Finding the Epicenter
Find the length of the radius of each circle. To calculate the radius, divide the distance from the epicenter by 640 km.
Mitosis is a type of cell division. organize the images below to show the steps of mitosis.
(QUICK PLZ)
Answer:
i believe its the first
Explanation:
Which of these statements correctly describe the result of Mitosis
Answer:
The result of mitosis is two identical daughter cells, genetically identical to the original cell, all having 2N chromosomes. ... A chromatid, then, is a single chromosomal DNA molecule.
Answer:
statements??
Explanation:
how can one eukaryotic gene lead to one transcript, but multiple different proteins?
Answer:
source- The ability of certain genes to form multiple proteins by joining different exon segments in the primary trans-cript is called alternate splicing and has caused a reexamination of the concept of “one gene, one protein.
Scientists have long known that it's possible for one gene to produce slightly different forms of the same protein by skipping or including certain sequences from the messenger RNA. ... Human genes typically contain several "exons," or DNA sequences that code for amino acids, the building blocks of proteins.
in your own words-
the flexibility of bound factors to make multiple proteins by connection totally different DNA segments within the primary trans-cript is termed alternate junction and has caused a reexamination of the thought of “one gene, one macromolecule.
Scientists have long noted that it's attainable for one factor to provide slightly totally different styles of a similar macromolecule by skipping or together with bound sequences from the informational RNA. ... Human genes usually contain many "exons," or desoxyribonucleic acid sequences that code for amino acids, the building blocks of proteins.
Explanation:
hope this helps, the source is where i got my information and the in your own words is it fully rewritten for you! also have a wonderful day/night!
Why do you think that you had to use a thin layer of onion skin, rather than a thick layer for the microscope?
Answer:
Because the thin layer will have more bacteria on it since its on the outside
Explanation:
How is the gametophyte stage in gymnosperms different from the gametophyte stage of mosses
Will give brain list
explain how the internal parts of a leaf are adapted for photosynthesis
Explanation:
Leaves have a large surface area so more light hits them. The upper epidermis of the leaf is transparent, allowing light to enter the leaf. The palisade cells contain many chloroplasts which allow light to be converted into energy by the leaf.
Explain in your own words what is meant by one of the diagrams below, you only need to choose 1 to talk about. Share as much detail as you can.
The T-Rex diagram relates to the evolution of species on planet Earth.
The following images are shown in this diagram:
A T-Rex dinosaurA drawing of the planet EarthA drawing of grassA drawing of a cowA drawing of a humanThese 5 pictures can be related to finding the main message of the diagram. This diagram can be interpreted as the evolution of species on planet Earth because a dinosaur is shown first, a species that lived millions of years ago.
An image of the Earth is then displayed showing the familiar shape of the continents to demonstrate evolution on the Earth's surface.
Then show the grass because this represents the evolution of plant species that were expanding throughout most of the Earth.
Subsequently, a cow is shown as an example of the mammalian animals that exist today and finally the human who is the product of various evolutionary processes that resulted in the society and the world that we know today.
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________happens in the mitochondrial membrane and is where hydrogen ions are
pumped through to create ATP
O glycolysis
Okreb's cycle
O light reactions
electron transport chain
Explanation: Electron transport chain
How are hydrogen ions pumped across the membrane?
Image result for what is used to make the mitochondrial membrane and is where hydrogen ions are pumped through to create ATP
During electron transport, energy is used to pump hydrogen ions across the mitochondrial inner membrane, from the matrix into the intermembrane space. A chemiosmotic gradient causes hydrogen ions to flow back across the mitochondrial membrane into the matrix, through ATP synthase, producing ATP.
a group consisting of only the wood, american, cave, and desert cockroaches is a monophyletic group. true or false?
A group consisting of only the wood, american, cave, and desert
cockroaches being a monophyletic group is True.
What is a Monophyletic group?This is the type of groups which consists of organisms which have a
common ancestor.
The organisms mentioned above are all types of cockroaches which
means they emanated from a common ancestor and makes it valid.
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The world population has surpassed 7 billion and is continuing to increase dramatically. Select the factor that has demonstrated an
inverse relationship to population growth.
es )
A)
deforestation
B)
violent political conflict
spread of communicable diseases
D)
biodiversity of plant and animal species
Answer:
D
Explanation:
As population grows all the above factors increase expect the biodiversity of animal and plant species.
On a basic level, it is obvious that population increase and per capita income growth are related. Per capita income is simply total income divided by the population. Thus, option D is correct.
What inverse relationship to population growth?When attempting to forecast changes in population size, demographers frequently focus on four essential criteria.
The population's starting age profile (whether it is relatively young or old to begin with), migration, and fertility rates (death rates; life expectancy).
Depending on particular environmental factors, two different patterns of population expansion may manifest: In a perfect, limitless environment, an exponential growth pattern (J curve) manifests itself.
The development of a logistic growth pattern (S curve) occurs when external forces reduce the pace of growth.
Therefore, The gap between the growth rates of income and population is roughly equivalent to the growth rate of per capita income.
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! What landforms could be the result of diverging plates and name a location where this occurs?
Answer:
rift valleys and mid-oceanic ridges.
Explanation:
During photosynthesis, plants produce _____________ and oxygen from the _____________________________ of solar energy, water, and carbon dioxide
Answer:
During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light.
Explanation:
Most life on Earth depends on photosynthesis.The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar). Herbivores then obtain this energy by eating plants, and carnivores obtain it by eating herbivores.
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
____________ diffuses out of the alveoli and into the pulmonary capillaries, while _______ diffuses out of the pulmonary capillaries and into the alveolar sacs.
Answer: Oxygen; Carbon Dioxide
Explanation:
Oxygen diffuses out of the alveoli and into the pulmonary capillaries, while carbon-dioxide diffuses out of the pulmonary capillaries and into the alveolar sacs.
What are pulmonary capillaries?PULMONARY CAPILLARIES: Deoxygenated blood enters into the pulmonary arteries from the right side of the heart and is delivered to the pulmonary capillaries, the smallest blood vessels inside of the lungs, attached to the walls of the alveoli.
Moreover, oxygenated blood then passes from the capillary beds through venules into the pulmonary veins. The pulmonary veins transport it to the left atrium of the heart.
Therefore, the pulmonary arteries are the only arteries that carry deoxygenated blood, and the pulmonary veins are the only veins that carry oxygenated blood.
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Someone plz help me :(
Nearly all forests in ________ have been cut at least once during the past 300 years, so very little original (virgin) forest remains.
Answer:
In the United States.
Explanation:
It doesn't have very many original forests because people have been chopping them down and planting new ones.
