Someone please help!
The picture below shows a model of the human digestive tract.
Which of the following best describes the purpose of this model?
to show how organs in the digestive tract are compressed by contracting muscles
to show the parts of the digestive tract without having to use real organs
A
B
to show how microscopic molecules flow through the digestive tract
D
to show the function of one organ in the digestive tract in isolation
Answers
Answer:
to show the function of one organ in the digestive tract in isolation
Related Questions
The discovery that chromosomes are involved in inheritance was made possible by the invention of the -
O a. computer
O b. microscope
Oc microgram scale
O d. mercury thermometer
Answers
what is released in the light depended step of photosynthesis?
Answers
Answer: Imma say In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. The light-dependent reactions release oxygen as a byproduct as water is broken apart.The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. ... The photosystems and electron transport chain components are embedded in the thylakoid membrane.
Hope this helps have a awesome night/day❤️✨
Explanation:
Answer: The energy in the light helps create glucose with the help of Carbon Dioxide and Water
(Hope this helps)
Draw a flowchart to illustrate how a change in a nucleotide in a DNA strand leads to symptoms experienced by those with sickle cell anemia.
Answers
Answer:
Explanation:
The Flowchart is in the picture below. I hope it would be helpful for you.
A nucleotide is a compound containing three component units namely a pentose sugar, a heterocyclic nitrogenous base and a phosphate group. The nitrogenous base present may be either purines or pyrimidine.
What is sickle cell anemia?The sickle cell anemia is one of a group of inherited disorders known as the sickle cell disease. It affects the shape of the red blood cells which carry oxygen to all parts of the body. In sickle cell anemia some red blood cells are sickle shaped.
Red blood cells are usually round and flexible, so that they move easily through blood vessels. The sickle shaped red blood cells are also called crescent moons. These sickle cells also become rigid and sticky which slow or block the blood flow.
SCD causes a basal substitution of adenine A to thymine T in the sixth codon of beta globin. This leads to the replacement of glutamic acid with valine in polypeptide chains of haemoglobin.
The flowchart is given below:
To know more about sickle cell anemia, visit;
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Complete each statement to describe sexual reproduction.
The
is the male sex cell.
The
is the female sex cell.
A
forms as a result of fertilization.
Answers
Answer: sperm.... egg.... zygote
Explanation: hope this helps
Answer: The sperm is the male sex cell.
The egg is the female sex cell.
A zygote forms as a result of fertilization.
Explanation:
Recycling of solid waste minimizes pollution. Give reason.
Answers
In the diagram of the DNA molecule below, match the correct term with the image (ignore the blank arrow).
Answers
Answer:
hope this help
Explanation:
Nucleic acids are made up of chains of many repeating units called nucleotides (see bottom left of Figure 1 below). The DNA molecule actually consists of two such chains that spiral around an imaginary axis to form a double helix (spiral.) Nucleic acid molecules are incredibly complex, containing the code that guarantees the accurate ordering of the 20 amino acids in all proteins made by living cells. Surprisingly though there are only a few different nucleotides: only four different nucleotide units comprise DNA, the nucleic acid of interest to the genealogist.
This figure is a diagram of a short stretch of a DNA molecule which is unwound and flattened for clarity. The boxed area at the lower left encloses one nucleotide. Each nucleotide is itself make of three subunits:
A five carbon sugar called deoxyribose (Labeled S)
A phosphate group (a phosphorous atom surrounded by four oxygen atoms.) (Labeled P)
And one of four nitrogen-containing molecules called nucleotides . (Labeled A, T, C, or G)
Alternating sugar and phosphate units form the two sides of a ladder-shaped arrangement with the rungs or steps each formed by a pair of nucleotide bases. Figure 2 below shows the structural formula of DNA in greater detail. The nitrogen bases are ring compounds with their carbon and nitrogen atoms arranged in single or double rings. Only certain bases can pair together to form base pairs. In DNA, Adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).
Notice that in the two figures above, the two strands of a DNA molecule are antiparallel, that is, they run in different directions. The side of the chain on the left begins with a free phosphate group at the top and ends with a sugar molecule at the bottom. In contrast, the complementary chain on the right begins at the top with a sugar molecule and ends at the bottom with a phosphate group.
Happily, it is not necessary to hold the details of DNA structure in your mind at all times! As the sugar and phosphate sides of the molecule are constant they are frequently represented by parallel lines. Even better, each of the nitrogen bases is conveniently represented by the first letter of its name. These conventions allow the simplified representation of the molecule shown in the figure below
Or, even easier, a section of a DNA molecule is often abbreviated to show the bases of just one strand:
A T G G C T A C
Knowing the base pairing convention of A always pairing with T and G always pairing with C makes the complementary strand of the molecule understood. It is this feature of complementary base pairing that insures an exact duplicate of each DNA molecule will be passed to its daughter cells when a cell divides.
15. Explain how each of the following creates electrical energy:
a.
Solar
Hydro
Tidal
Wind
OTEC
Biomass
Geothermal
Answers
Hydro- a hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity
Tidal- energy is a form of hydropower that works by harnessing the kinetic energy created from the rise and fall of ocean tides and currents, also called tidal flows, and turns into unusable electricity
Wind- turns the propeller like blades of a turbine around a rotor, which spins a generator, which creates electricity
OTEC- plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity
Biomass- is burned in a boiler to produce high-pressure steam. This steam flows over a series of turbine blades, causing them to rotate. The rotation of the turbine drives a generator, producing electricity
Geothermal- power plants use steam to produce electricity. The steam comes from reservoirs of hot water found a few miles or more below the earth’s surface. The steam rotates a turbine that activates a generator, which produces electricity
Question 5
The diagram below shows a population of mice over time.
Original
Population After
Population
One Month
Next Generation
Which of the following statements is supported by the information in the diagram?
A
The light mice are poorly adapted to survive in any environment. Because of this, fe
genes.
The dark mice all have identical genes. Because of this, the dark mice were more li
B
Answers
Answer: its c btw :)
Explanation:
Your from Ms Cunningham class, I know :) I CAUGHT U
1.What is precipitation that is more acidic than normal called?
2.The loss of most vegetation is a prominent cause of desertification. (T or F)
3.If we one part of an ecosystem, can we have an effect on the rest of the ecosystem? Explain.
4.How does human activity impact Earth's systems such as deforestation, urbanization,
desertification, erosion, air and water quality, and alternating the flow of water?
PLEASE ANSWER YOU WILL GET MARK THE BRAINIEST
Answers
Answer:
dweqdf ejlff
Explanation:
Compare and Contrasts Biotic Factors and Abiotic Factors. What are they?
How are the alike.
How are the different?
Answers
In the laboratory, scientists remove the gene for insulin from human chromosomes. They insert the gene into the DNA of bacteria. This causes the bacteria
to produce human insulin. The insulin is used to treat diabetes in humans. Which of these describe this process?
A. Recombinant DNA
B. Reproductive Cloning
C. Gene Therapy
D. DNA Fingerprinting
Answers
Answer:
A. Recombinant DNA
Recombinant DNA is created by a process called genetic recombination. In this process, we insert a exogenous gene to let another organism, a bacteria in this case, produce a protein that can not be produced otherwise
Explain why chloroplasts are found only in plant cells?
Answers
Answer:
Explanation:
Chloroplasts are found in plant cells only because chloroplasts contain chlorophyll which is essential for photosynthesis. Chlorophyll traps sunlight and uses it to prepare food for plants by the process of photosynthesis.
Answer:
chloroplast are only found in plant cell because
it contain chlorophyll which is useful in making good for plants by trapping sunlight from
sun .
But animal don't need to make food so. they don't contain chloroplast in their cell
hope it helps
3. (a) The binomial naming system used to identify all living things gives the Indian elephant
a scientific name of Elephas maximus.
Which part of this name refers to the genus and which part refers to the species?
genus
species
[1]
Answers
Answer:
Genus = Elephas
Species = maximus
Explanation:
Carolus Linnaeus, who is considered to be the FATHER OF TAXONOMY for his immense contribution to the classification of living organisms. Carolus Linnaeus between the year 1735 and 1758, developed a scientific system of naming organisms using two-way naming system called BINOMIAL NOMENCLATURE.
The two Latin names given to organisms were derived from their generic and specific epithet i.e. one of the names is GENUS and the other SPECIES. According to this question, the scientific name using the binomial naming system for Indian elephant is Elephas maximus. This means that Elephas is the part that refers to GENUS while maximus is the part that refers to SPECIES.
Illness or condition that negative affects my organ
System
Answers
Answer:
some illnesses that can affect your organ system are heart disease, asthma, and cancer
Answer:
Autoimmune hepatitis, Graves' disease, type 1 diabetes, and Cystic fibrosis.
Explanation:
PLEASE HELP ME
The greater the biodiversity in an ecosystem the
A. less likely the ecosystem is to survive
B. more likely the ecosystem will survive
C. less valuable it is to human, for various products
D. the more similar it is
Answers
Answer:
I am pretty sure the answer is B
- I'm sorry of its not correct
how are brain skin and bone genetically related?
Answers
Explanation:
The brain, skin and bones are genetically related thru DNA.
Gene expression regulates differation of cells...
How aquatic plants get oxygen for photosynthesis?
Answers
Answer:
Explanation:
They take in carbon dioxide from the water and use the sunlight through the water and produce oxygen
100 POINTS AND BRAINLY IF CORRECT PLEASEE HELP ME
Answers
Answer:
A) Nitrogen is cycled through living and non-living components of the ecosystem.
Explanation:
Nitrogen cycles shows and tells you how it travels from plants, animals, bacteria, the air, and the soil. (Both living and non-living organisms.) Nitrogen has to go into different states to go through each organism, living and non-living.
Photosynthesis requires light, water, carbon dioxide, and
____.
Answers
Investigators are looking for the igniter used at their crime scene. Which igniter is most likely to leave evidence behind for investigators to discover?
A cigarette lighter
A cigarette butt
A match
A Molotov cocktail
Answers
Jake is taking photos of his neighbor's home to help them list and sell the house. It is
important to have a wide variety of photos to choose from, so he is taking multiple
shots of each room--some from the doorways, some from floor-level, some from up
above, and some from a corner of the room. What is Jake playing around with as he
photographs each room?
O motivation
O decor
O lighting
O angles
Answers
Will mark brainliest!
Answers
Answer:
true
Explanation:
what are the reactants of glycosis?
Answers
Answer:
Explanation:
The only true reactant of glycolysis is a molecule of glucose. Two molecules each of ATP and NAD+ (nicotinamide adenine dinucleotide, an electron carrier) are introduced during the series of reactions.
How does movement along faults change the Earth’s surface?
Answers
Earthquakes are the result of sudden movement
along faults within the earth that releases stored
up elastic strain energy in the form of seismic
waves that propagate through the earth and
cause the ground surface to shake..
Please mark as brainlist
Forensic DNA examination found the earliest known ancestors of modern
dogs occurred
Answers
Explanation:
By analyzing the DNA of two prehistoric dogs from Germany, an international research team has determined that their genomes were the probable ancestors of modern European dogs. The finding suggests a single domestication event of modern dogs from a population of gray wolves that occurred between 20,000 and 40,000 years ago.
hydra aurelia sea anemone sea cucumber odd one out
Answers
Answer:
The correct answer is - sea cucumber.
Explanation:
Hydra, aurelia, and sea anemone belong to Phylum - Coelenterata or cnidaria while sea cucumber is a member of echinoderms. Cnidaria is radially symmetrical, free-swimming or fixed, aquatic and solitary or colonial animals. While sea cucumber are animals like starfish or sea urchin.
They found on the seafloor and have pentaradial symmetry however, developes bilateral symmetry later.
Which is primary Pollinator of conifers?
A.birds B. Insects C.Wind D. Water
Answers
Answer:
C)wind
Explanation:
All conifers are pollinated by wind.
Answer:
wind
Explanation:
yan po ang sagot sana makatulong
In a food chain, energy moves from producer to herbivore or
and then on to other consumers.
Answer
energy
food web
omnivore
all of the above
Answers
Answer:
To other consumers.
A teacher performs a demonstration of cellular transport by placing a raisin in pure water. After 24 hours, the students check the raisin and find that it has swollen and has a greater mass than before it was placed in the water.
Answers
Answer:
Explanation: it will swell after 24 hrs
Unicellular organisms can reproduce, move, are simple, eats.
Which word is not true.
Answers
Answer:
So, they do eat...they do reproduce...they are simple...and can move.
So if you were lazy and skipped a type of food mentioned or anything, please ask the entire question, with all the included words. This way I can evaluate from how/the way they say it.