Answer:
Rose's classmate Mina observing Daphnia in water at 30°C, 32°C, and 34°C.
A step in replication of Rose's experiment could be to repeat the procedure of heating three different beakers of water containing Daphnia to 30°C, 32°C, and 34°C, counting the number of heartbeats in one minute for each sample using a microscope and slide mount, and averaging the results.
What is Daphnia?Daphnia, also known as water fleas, are small, transparent aquatic invertebrates that are commonly used in scientific experiments to study the effects of environmental factors on living organisms. In many experiments, Daphnia are subjected to changes in temperature, light, oxygen levels, and other variables to determine how these changes impact their behavior and physiology.
One example is studying the effect of temperature on heart rate, as done by Rose in the experiment described above. The use of Daphnia in experiments is beneficial because they are easy to culture, reproduce quickly, and are small and simple enough to be easily manipulated in the laboratory. Additionally, because Daphnia are freshwater organisms, they are particularly sensitive to changes in their environment, making them useful for investigating the impacts of various stressors on aquatic ecosystems.
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Why does asexual reproduction result in offspring with identical genetic variation? Use the examples that you studied earlier in this lesson to support your answer.
Answer:
The reason asexual reproduction results in identical offspring is because the DNA is replicated exactly from the parent to the daughter. One example is bacteria.
Explanation:
Answer:
Sexual reproduction results in offspring with genetic variation due to the multiplication brings about limitless prospects of hereditary variety. The examples, that can be studied to support this would be at the end of the day, sexual generation brings about posterity that are hereditarily extraordinary. They vary from the two guardians and furthermore from one another. This happens for various reasons.
Explanation:
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Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes:
Facilitated Diffusion
Endocytosis
Diffusion
Exocytosis
please help 20 points if so.
Answer: A. Codominance is a blending of the two traits, and incomplete dominance expresses both traits equally.
Explanation: Good luck! :D
Answer:
A is correct
Explanation:
The base pairing rule for DNA is adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).
When RNA copies the DNA, the base pair for adenine changes to _______ instead of thymine.
Question 5 options:
Thymine
Uracil
There is no new base
U.. Something Or Another...
Answer:
Uracil
Explanation:
DNA molecule is made up of monomeric nucleotides, which are of four different types viz: Adenine, Guanine, Cytosine, and Thymine. According to the COMPLEMENTARY BASE PAIRING RULE as proposed by Chargaff, these nucleotides pair in the DNA as follows: Adenine to Thymine (A-T), Guanine to Cytosine (G-C).
However, in the RNA molecule (second nucleic acid), a fifth nucleotide called URACIL is found. This URACIL replaces thymine because thymine is only found in DNA while Uracil is only found in RNA. When DNA is transcribed into mRNA, Adenine nucleotide gets transcribed into Uracil in the RNA instead of thymine i.e A to U.
Answer:
Uracil
Explanation:
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Which of the genotypes below are purebred?
ADd
B
DD
с
Bb
D
aa
E
TT
F
Ff
Answer:
DD TT
Explanation:
They are the same and capital
DNA is responsible for making a cell¨s what?
Answer:
The answer is in the explanation bellow
Explanation:
the major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code. To read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA.
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3. an organism whose cells contain a nucleus and membrane bound organelles
Archaea
Fungi
Eukaryote
Protista
Answer:
Answer is C
Explanation: Please MARK brainiest
Eukaroyote
Answer:
Answer is eukaryote.
Explanation:
A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes.
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Describe the energy transformations that exist on earth and in your daily life. Describe at least 3 factors and why each one is important. 40 POINTS
Answer:
Energy is the fundamental need of our everyday life. ... This means that we can convert electrical energy into heat energy and light energy, solar energy can be converted to chemical energy, potential energy can be converted into kinetic energy, Gravitational potential energy can be converted into kinetic energy etc.
Explanation:
The Sun transforms nuclear energy into heat and light energy.
Our bodies convert chemical energy in our food into mechanical energy for us to move.
An electric fan transforms electrical energy into kinetic energy.
what do you think is the most important scientific discovery we humans have made?
Answer:
THE MOON
Explanation:
you did not give a time era
Mrs. Cortez has asked her students to write an explanation what chromosomes are and what they do. Four student examples are shown. Which student has written the best explanation of chromosomes?
Answer:
Araceli
Explanation:
I believe this because she just explains it very nicely & if you are to search up chromosomes definition, you'll see that her answer is very identical.
Answer:
what he said araceli
Explanation:
when a plant is in area of light, which of the following will happen?
Answer:
Your answer is B
Explanation:
Plants need light in order to survive. Natural sunlight allows plants to grow leaves, flower, produce chlorophyll, and more.
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Also here's the answer to your other question. I linked a screenshot of the problem :)
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Answer:
B. The plant will slowly die because it cannot photosynthesize.
Explanation:
Because when they don't have light, they can't get the nutrients from the light they need to survive.
Which statement is true about levels of organization for living things
A .organisms that are in the same kingdom are always in the same order
B. Organisms of the same species are always in the same class
C. Organisms that are in the same phylum have more in common Then organisms in the same order
D. Organisms that are in the same family have more in common than organisms in the same genius
Answer:
B and D are true
Explanation:
Kingdom - Phylum - Order - Class - Genus - Family - Species
What do plants do with light energy during photosynthesis?
Answer:
during photosynthesis light energy is captured and used to covert water, carbon dioxide and minerals into oxygen
Explanation:
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
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A student makes a new gel using agarose, water, and buffer solution. The student loads their DNA samples in their wells and places the gel in the chamber for an appropriate length of time. When the student places the gel on the UV lightbox, no DNA bands show up at all. Even the marker lane is clear and has no bands! What mistake did the student make? Explain your answer.
Answer:
A dye needs to be added to the gel electrophoresis
Explanation:
Ethidium bromide (EtBr) is a reagent that adheres to DNA and fluoresces under ultraviolet (UV) light. Due to this feature, EtBr is widely used to dye DNA strands in molecular biology techniques such as agarose gel electrophoresis. The most common dyes for visualizing and staining nucleic acids during gel electrophoresis include EtBr, SYBR gold, Eva green and SYBR safe. If EtBr (or any other staining agent) was not added to the electrophoresis gel and/or running buffer, the gel will be dark under UV light (even the ladder lane will look empty) because DNA has not been stained.
The mistake the student made was by not adding dye to the sample. Dyes
are commonly used during electrophoresis.
Agarose gel electrophoresis is the process which helps in the separation
and purification of DNA samples. This process involves the use of dyes
which acts as markers.
in this scenario, we were told no DNA bands show up and the marker lane is
clear means no dye was added. The common dye used in agarose gel
electrophoresis is Ethidium bromide (EtBr) which should be added by the
student.
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Please help me with this drawing contour lines. I will mark your brainlist if you answer it correctly.
Explanation: Use these images to find the borderlines and to understand what they are.
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Mineral ions are required in the human diet in small quantities. State the mineral ion required for each process: a) making bone b) making haemoglobin
Answer:
a) making bone - Calcium
b) making hemoglobin - Iron
Explanation:
Mineral ions are defined as the charged forms of minerals which are required in small amount in human body but are essential otherwise leads to deficiency symptoms.
Making bone and making hemoglobin both require mineral ion. Making bone require calcium ion, as it maintain the bone mass and strengthen the bones. hemoglobin formation require iron ion, as iron helps to oxygenate our blood cells.
Hence, the correct answer is "a) making bone - Calcium
b) making hemoglobin - Iron".
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Which of the following statements about oceans is incorrect?
A) Oceans collect water from other reservoirs including streams and rivers.
B) Oceans are the main source of drinking water on Earth's surface.
C) Oceans are connected to other reservoirs through evaporation and precipitation.
D) Oceans are the main type of reservoir that contain salt water.
Answer: C
Explanation:
It made sense.
Answer:
B
Explanation:
B is incorrect because oceans are not the main source of drinking water. They contain the most water, but the ocean is not drinkable as it is much too salty and would lead to dehydration and the shriveling up of cells, causing death if it was the only water you drank. Usually only small island countries will have to resort to drinking ocean water after desalinating it, but most of the world gets their water from other sources such as groundwater, springs, lakes, and rivers.
4. Which of the following factors determines the sex of an offspring, specifically in humans?
A) genes on the X chromosome only
B) the number or chromosomes
C) presence or absence of a Y chromosome
D) genes within the chromosomes
What are all the organisms that perform cellular respiration?
Answer:
All the organism that performs cellular respiration is Oxygen is required for cellular respiration and is used to break down nutrients, like sugar, to generate ATP (energy) and carbon dioxide and water (waste). Organisms from all kingdoms of life, including bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.
do all cells have a cell plate?
Answer: No
Explanation: (in plant cells) a plate that develops at the midpoint between the two groups of chromosomes in a dividing cell and that is involved in forming the wall between the two new daughter cells.
all fatty acid elements
Answer:
Carbon Oxygen and Hydrogen are the elements
Explanation:
What makes an immovable joint, an immovable joint?
It allows for full movement
It allows for partial movement
It allows for little or no movement
Answer:
It allows for little or no movement.
Explanation:
An immovable joint is a joint that allows little or no movement.
Ex: found between the bones of the skull or gomphosis between the root of a tooth
Carbon dioxide is released when which of the following phenomena occur?
precipitation
photosynthesis
burning fossil fuels
nitrogen fixation
Answer:
burning fossil fuels
Explanation:
Organisms combine glucose and oxygen in order to release energy in what process?
In which phase of mitosis do chromosomes attach to the spindle fibers, lining up in the middle of the cell?
Answer:
Metaphase
Chromosomes line up at the metaphase plate, under tension from the mitotic spindle
Explanation:
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Describe the amount of sunlight at the poled and at the equator throughout various times of the year. Why does this occur?
Answer:
Neither of the poles are tilted towards the sun. Hence, the sun rays fall directly on the equator due to which all the places on the Earth experience equal daylight hours and equal night time hours that is, 12 hours of day and 12 hours of night on all the places of the Earth.
Answer:
The fact that the equatorial Sun is always so close to the zenith at solar noon explains why the tropical zone contains the warmest regions on the planet overall. Additionally, the Equator sees the shortest sunrise or sunset because the Sun's path across the sky is so nearly perpendicular to the horizon.
Explanation:
i think this might help
Blight is a plant disease caused by a fungus that affects potato plants. Scientists are tying to develop a breed of potato plants that are resistant to blight. The development of blight-resistant potato breed might be good for the environment because the new potato breed will need
A. Less water
B. Less fertilizer
C. Less fungicide
D. Less field space
Answer lil durk a goat LLKV
Explanation:
Description of a ladybugs metamorphosis, including whether it is complete or incomplete
Complete metamorphosis has 4 stages: egg, larva, pupa, and adult. The larva and pupa stages look very different from the adult stage. Examples include butterflies, beetles (including ladybugs), and mealworms. Incomplete metamorphosis has 3 stages: egg, nymph, and adult..
why is the sun so warm
Answer:
cause it supa dig and it's rays be supa hot. ya feel meh
Explanation:
The light radiated by our sun is transformed into heat energy once it reaches a surface. Even though the sun is nearly 92 million miles away from the earth, it's light still reaches us and has it's light transformed into heat.
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Question 1 of 26
True or false? Adrenaline increases the glucose concentration in the blood.
True
False