Answer:
c
Explanation:
If the substances can move across the cell membrane without the cell expending energy, the movement of molecules is called passive transport. Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O 2) and carbon dioxide (CO 2)
Guiding Question: How does island size and/or the distance to the mainland affect carnivore richness in the Apostle Islands?
Answer:
observe the island size and or distans
Sickle cell anemia is a monogenic disorder in which the body produces abnormally shaped red blood cells. Sickle cell anemia is inherited in an autosomal recessive pattern. A person who is a carrier for this disease typically do not show signs and symptoms of the condition. Two cousins in Bangladesh got married and had kids without being aware that sickle cell disease runs in their family. Laboratory testing later showed that both partners were carriers for the sickle cell mutation. If this couple decides to have children, What is the chance (probability) that their children will also be carriers of the sickle cell disease?
Answer:
there's a ½ or 50% chance of their children will also be carriers of the sickle cell disease.
Explanation:
let IA = normal and IS =sickle cell
since both parents are carriers so it would be IAIS x IAIS
IAIS x IAIS
1 IAIA, 2 IAIS, 1 ISIS
which part of the dna nucleotide determines genetic characteristics?
A baby carriage is sitting at the top of a 21 m high hill. It weighs 12 N. It has ________________ energy?
A - kinetic
B - Potential
Answer:
B- Potential
Explanation:
The object has the potential energy to be converted to kinetic energy if it starts to roll down the hill. But right now it has the potential for energy.
How do I describe chloroplast
Answer:
a plastid that contains chlorophyll and in which photosynthesis takes place.
or
a type of plastid that is involved in the synthesis and storage of foodstuffs
Explanation:
hope this helps :)
Answer:
Chloroplasts are/have
- Oval shaped
- filled with chlorophyll
- have a 2 membrane structure
Chloroplasts are special and unique structures found in plant cells that are king when it comes to turning sunlight into energy for the plant to use. (this process is called chlorophyl)
Hope this helped!
In a chain of consequences after a forest is cleared, what is an immediate, direct impact?
O habitat is destroyed
O the greenhouse effect increases
O species go extinct
O carbon dioxide is sequestered at lower rates
Answer:
I think its the habitat is destroyed
What are some examples of evidence that suggest that some continents were once joined and have since separated?
What do I do when this happen???
Do you think there should be regulations on industries that make fertilizers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems? Why or Why not? Write at least five sentences defending your answer.
Given what we know, we can confirm that there should in fact be regulations on fertilizer manufacturers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems due to its negative effects on the ecosystems.
What is Nitrogen?Nitrogen is an element that is most often found in a gaseous state.It is color and odorless.It is found in the air, water, and almost everywhere else around us, but in low quantities. It can form toxic gases such as ammonia when in high concentrations in the air. Why can it be harmful in excess?Excess nitrogen in water is very bad due to the effect on algae. Contrary to what we may initially believe, excess nitrogen can help algae to grow at very high rates.However, these algae blooms sap the oxygen from the water at increased rates and damage if not kill all other marine life in the area as a consequence.Therefore, regulations should be in place for fertilizer manufacturers and farmers who use fertilizers to ensure that excess nitrogen does not reach water ecosystems due to its negative effects on the ecosystems.
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Help please and are the ones that already answered to are correct ?
Yes, all of your answers are correct except for number 12. Instead I would say a food chain outlines who eats whom but a food web is all of the food chains in an ecosystem.
Primary consumers are basically herbivores, such as squirrels, rabbits, crickets, etc.
Secondary consumers are carnivores/omnivores, animals that eat other animals such as foxes, snakes, and owls.
Higher order consumers are animals that can eat more things, like humans for example, because we eat animals that are bigger than us like cows but we also eat plants.
Omnivores are animals that eat meat and plants, such as humans and mice because according to your food web, mice also eat meat.
I can’t see the picture very well because it’s blurry, but i think the owl eats some kind of animal that looks like a frog and snakes, so if the owl is removed the frog animal thing and snakes would increase.
for the last question, i would say
People who have Tay-Sachs disease cannot metabolize some lipids effectively. Tay-Sachs is a recessive disorder. A student used a Punnett Square to determine the probability of offspring inheriting the disease. The results from a Punnett Square are 25% TT, 50% Tt, and 25% tt.
Answer:
dx
Explanation:
vv
Cellulose is the most abundant organic
compound on Earth and is made up of
many monomers linked together to form
the polymer known as cellulose. Which
of these monomers link together to form
the cellulose polymer?
A. glucose
B. DNA fragments
C. water molecules
which of the following hormones produced in the anterior pituitary stimulates the production of progesterone and estrogen by ovaries and is needed for ovulation?
Luteinizing hormone stimulates the corpus luteum to produce progesterone, which is required to support the early stages of pregnancy, if fertilization occurs.
what are the role of Luteinizing hormone ?These hormone are released from ductless Endocrine cells which release their secretion i.e., hormones directly into blood.
The FSH (follicle stimulating hormone) is secreted by pituitary gland which helps in controlling menstrual cycle and stimulation of ovaries for egg production.
The hormone LH (Luteinizing hormone) is secreted from pituitary gland, helps in physical development and maintaining pregnancy.
Thus, both FSH and LH are produces by pituitary gland and their functions are to control menstrual cycle and maintaining pregnancy respectively.
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A baker uses yeast to make bread dough then lets it sit for one hour. During that time the dough doubles in size. What process is responsible for this effect?.
Answer:
alcoholic fermentation/ anaerobic respiration
Explanation:
Alcoholic fermentation is a biochemical process in which sugars such as glucose, fructose, and sucrose are converted into small amounts of ATP, producing ethanol and carbon dioxide during the process. ... In this form of anaerobic respiration, pyruvate is broken down into ethyl alcohol (C2H6O) and carbon dioxide
if a baker uses yeast to make bread dough then lets it sit for one hour alcoholic fermentation causes the rise of the dough.
What is alcoholic fermentation?Alcoholic fermentation is simply defined as the conversion of fructose and glucose in grape juice to ethanol, CO2, and heat by yeast.d heat by yeast.
In conclusion, The Phenomenon of alcoholic fermentation causes the rise of the dough
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HURRY 50 POINTS
Define trawling, and explain the ecological damage associated with it.
DO NOT COPY AND PACE PLZ
Answer:If we are talking the word it means, fishing with a trawl net or seine, or, sifting through as part of speech. if it isnt the word then i dont know:(
Explanation:
Mrs. Franklin's science class is conducting an experiment with corn plants. The students planted 100 corn kernels. Green plants sprouted from 78 of the kernels. The other 22 kernels grew into white plants, which contained no chlorophyll. What inference can be made about the genotype of the corn? A White color is dominant over green. B Green color and white color are equally recessive. C White color and green color are equally dominant. D Green color is dominant over white.
Answer:
D- Green color is dominant over white
Explanation:
For a heterozygous cross, the dominant one will show around 75% of the time where the recessive will show around 25% and 78 and 22 and very close to those numbers!
Hope this helps!
Geologists determine the
geological history of an area by
examining rock layers in geologic
columns. The diagram shows
three geologic columns from the
same region that have not been
overturned.
A.
Place an arrow at each rock
layer boundary to represent a
missing layer of rock in each
of the three columns.
Next part in pic
The sample columns have two missing layers as follows:
Column 1: Layers 3 and 8 are missing. Column 2: Layers 1 and 7 are missing. Column 3: Layers 1 and 5 are missing. What is geology?Geology is a term to refer to the specialized science that focuses on the study of the composition and internal and external structure of the surface of the planet Earth, and the processes by which it has evolved throughout geological time.
In the image 3 columns are shown showing various layers of the Earth, however, each of it has 2 missing layers. To know which layers were missing from each one, we must analyze them to establish what a column with complete layers would look like and then compare the 3 samples with the model to know which layers are missing.
According to the previous process, it can be inferred that the missing layers in each column are:
Column 1: Layers 3 and 8 are missing. Column 2: Layers 1 and 7 are missing. Column 3: Layers 1 and 5 are missing.Note: This question is incomplete because the graph is missing. Here is the graph.
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which layer of soil is closest to the surface
The Top soil is closest to the surface
The top most layer of the soil which contains humus and microorganisms in addition to soil particles is called top soil.
The quality of top soil determines the diversity of life in the region.It is the most fertile layer of soil in which the plants are able to grow.Cheers!!
The third level of cell organization is the ____.
Tissue level
System level
Organism level
Organ level
a scientist finds an organism that has a single cell without a nucleus this organism was found in pond water in which kingdom does it belong to? explain what is the answer if you find the answer i will give you 100,000 dollars
Answer:
Protista
Explanation:
In biology, there are said to be six different kingdoms that an organism can be classified under. They include Animalia, Plantae, Fungi, Protista, Archaea/Archaebacteria, and Bacteria/Eubacteria.
With this in mind, you say that a unicellular (single-celled) organism without a nucleus was found in pond water. This would point to the Protista kingdom, which are also known as protists. These organisms are single-celled beings with no big nucleus that are typically found in environments like ponds.
Hope this helped! I will take my 100,000 dollars via wire transfer (or just give this answer branliest)
what essential chemicals do the light dependent reactions obtain from the light independent reactions
Explanation:
Light Reactions: Light-dependent reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where the Calvin cycle takes place.
The energy storage molecule ATP and the reduced electron carrier NADPH are produced by the light-dependent processes using light energy, which is required for the subsequent stage of photosynthesis.
What are the products of the light-independent reactions check all that apply?
In order to make ATP and NADPH, the light-dependent processes of photosynthesis must first collect energy from the sun.Then, these two molecules that store energy are employed in the light-independent reactions. Two different types of energy-carrier molecules, ATP and NADPH, store the solar energy in the light-dependent reactions.These molecules' stored energy is contained in the bond that binds one atom to the molecule.It is a phosphate atom for ATP and a hydrogen atom for NADPH. The cell has the material it needs to create carbohydrate molecules once the energy from the sun is processed and packed into ATP and NADPH.Carbon atoms will form the backbone of the carbohydrate molecules created. The protein ferredoxin receives electrons from the pigment P700 in its reaction center. Ferredoxin can then donate the electrons to either the electron transport chain to produce more ATP or to the electron carrier NADP+ to make NADPH. The pigment chlorophyll in the thylakoid membranes of the chloroplast is able to absorb solar energy during these reactions.The second stage of photosynthesis uses the molecules ATP and NADPH, which are temporarily transferred the energy to. Chlorophyll absorbs solar energy during the light-dependent reactions and transforms it into chemical energy that is then stored.The chemical energy obtained during the light-dependent reactions powers the construction of sugar molecules from carbon dioxide in the light-independent reactions. Plants require three elements for photosynthesis: carbon dioxide, water, and sunshine. The reactions that depend on light include those that use it to split water, create ATP, and NADPH.The processes that use ATP and NADPH to repair carbon dioxide in order to produce the three-carbon sugar glyceraldehyde 3 phosphate are known as light independent reactions. NADP, ADP, and water molecule reactants are used in the light reaction.After the light processes are finished, the molecules ATP, NADPH, and oxygen are produced, the last of which is already regarded as a byproduct of photosynthesis.To learn more about independent reactions refer
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which term describes the site of a muscle attaching to the bone that moves the most?
Answer:
Insertion
Explanation:
What type of weather is associated with High Pressure systems?
Question 4 options:
it is always different
snowy weather
clear sunny skies
cloudy stormy weather
Answer:
it's option C) clear sunny skies.
The type of weather associated with High pressure systems is : ( C ) clear sunny skies
High pressure systems have a greater amount of air pressure within their systems, when compared to its surroundings. Due to the presence of high air pressure within the system the air in the system is pushed into the surroundings.
Types of pressure systemsThere are two types of pressures systems and they are
High pressure system ; Possess more air pressure within the system Low pressure system ; Possess less air pressure within the systemAs the air leaves the high pressure system into the surroundings the system becomes clearer ( i.e clear sunny skies is evident in a high pressure system).
Hence we can conclude that the type of weather associated with high pressure systems is clear sunny skies
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Energy for active transport comes from
Which mineral(s) have a black (or greenish-black) streak? Check all that apply.
sulfur
quartz
magnetite
pyrite
Answer:
Magnetite and pyrite
Explanation:
Their streaks are black
Magnetite is a mineral with an extremely high iron content. Magnetite is black or brownish-red with a black streak.
Magnetite - black
Pyrite -- greenish to brownish black.
What is so special about magnetite?Magnetite is a mineral with an extremely high iron content. Magnetite is black or brownish-red with a black streak. On the Mohs hardness scale, it has a hardness of about 6.Magnetite is most commonly used as an iron ore in the production of steel. Other uses include using it as a catalyst in the Haber process to produce ammonia, as a pigment in paints and ceramics, and as magnetic micro- and nanoparticles in a variety of processes and materials.Magnetite is an abundant raw material found in the Mountains and Mountains Caves, as well as the Jellyshroom Cave and Lost River.To learn more about : Magnetite
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howw does an acquired mutation in a somativ cell gene leading to cancer develipment affact a persons abilty
Answer:
Cells become cancer cells largely because of mutations in their genes. Often many mutations are needed before a cell becomes a cancer cell. The mutations may affect different genes that control cell growth and division. Some of these genes are called tumor suppressor genes.
Explanation:
what are ways in which carbon is released into the atmosphere?
Answer: Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
The leaves of peperomia plants develop roots and form new plants when they are placed in moist soil. Any leaf on the plant shown can produce a new plant. Which rwp terms describe this kind of reproductian? B. Vegetative C. Vascular
Answer:
b. vegetative
Explanation:
VEGETATIVE REPRODUCTION = any form of asexual reproduction occurring in plants in which a new plant grows from a fragment/cutting of the parent plant
VASCULAR REPRODUCTION = reproduction of seedless vascular plants through unicellular spores instead of seeds
Answer:
SSTOP
Explanation:
Which animals male reproductive organ is actually one of its arms?
A euglena is a unicellular organism. Choose an everyday object, such as a car, to use as a model of this euglena. Explain how the parts of the object model how the euglena's cell parts help it stay alive.
Answer:
a car:
Flagellum is a long thread-like structure that works as a navigator or a steering wheel in a car. The thin filament helps an euglena to move forward in any direction it desires.
Cell membrane is like the doors on a car. They regulate what goes in/out. The cell wall in a plant cell is like the frame on a car. The frame supports the car as the cell wall supports the plant.
The Nucleus is like the front seat of your car because the driver is in control of what the car does, goes, and what happens inside of the car.
Vacuoles is like the Trunk of your car because you store food, water and other wastes into your trunk, like were all the things go in the vacuoles.
The compression stroke in a car engine is like chloroplasts because it gas to fuel a car the same way chloroplasts convert solar energy in to chemical energy for a cell.
Mitochondrion is like the battery on a car. It gives the motor energy so it can run like the mitochondrion produces energy for the cell.
Eyespot is like a radio, because in some cars, radios pull power directly from the battery from the car battery, and this is why you will get the car radios on while the engine is off
Explanation:
The internal structures found in a typical photosynthetic Euglena are as follows:
Pellicle: A thin, flexible membrane that supports the plasma membrane and helps them to change shape
Plasma Membrane: The selectively permeable membrane that protects the inner content of the cell from the outside environment
Cytoplasm: A jelly-like substance distributed throughout the cell that contains all the cell organelles
Chloroplast: Contains the green pigment chlorophyll that helps them to produce food using sunlight by photosynthesis
Nucleus: A membrane-bound organelle that contains the genetic material, DNA. It also contains a distinct nucleolus that contains RNA and helps the cell to synthesize proteins
Mitochondria: The energy-producing organelle that forms ATP. All cellular activities such as movement and reproduction are performed using the mitochondrial energy source
Ribosomes: Consists of RNA and proteins, and are responsible for producing all cellular proteins
Golgi Apparatus: Manufactures, stores, and transports large molecules such as carbohydrates and proteins within the cell
Endoplasmic Reticulum: The extensive network of membranes that helps to package and transport proteins to different organelles. It is of two types: rough endoplasmic reticulum (RER) – containing ribosomes attached to it; and smooth endoplasmic reticulum (SER) – devoid of ribosomes
Lysosomes: Small membrane-bound organelles filled with hydrolytic enzymes that break down large molecules such as carbohydrates, fats, and proteins
Contractile Vacuole: It maintains the water and salt balance within the cell
Reservoir: The inward pocket present near the base of the flagella where contractile vacuole dispels excess water
Flagellum: A long whip-like structure attached externally to the cell body that helps in cell movement. An amoeba contains two flagella, a short one that does not protrude out of the cell, and a long one that helps in swimming
Eyespot: A region that is highly colored and contains red-colored carotenoid pigments that help in the detection of light. It is sometimes called a stigma
Photoreceptor: Also known as the paraflagellar body, it is the light-sensitive region located near the flagellum that helps to detect light. It also helps in their movement towards and away from light stimuli, a process known as phototaxis
Paramylon: They are stored starch-like carbohydrate granules composed of glucose produced during photosynthesis. Paramylon enables the organism to survive in low-light conditions when photosynthesis is not possible by acting as the food reserve for the cell. When the paramylon is enclosed in a sheath of polysaccharide, it is called the paramylon sheath of pyrenoid.
The flagellum of euglena, can be compared to the wheels of a car, as they are responsible for the movement of both.
What is Euglena?Euglena is a genus of single-celled flagellated algae that can occur either as free cells or in colony form.
What is flagellum?Euglenophytes have the presence of flagella as their main characteristic. They have two flagella, one longer than the other. The smaller flagellum does not emerge from the cell. The larger one is mainly used for locomotion.
With this information we can conclude that euglena has flagella for locomotion just as cars have wheels for locomotion.
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