Do you think the vacuum hose is an effective way to remove sea urchins? Why? Explain at least one way this technology can be improved.
Answer:
No, or at least not yet. there small and dont do much improvment. If they were much bigger and sucked better, including some touch-ups here and there, they would have a bigger effect on removing sea urchins.
Explanation:
No
vaccum hoses are quite small in size.They don't suck sea urchins as per requirement.If they would be bigger and have more sucking power then it can be yes.what is the relationship between the reactants and products in photosynthesis
Answer:
to produce Food . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......... ...... ....... .....
what is the difference between metameres and septa
Answer: External segments are called metameres and internally, septa, or dividing walls, are located between the segments.
Explanation: I think it is
Standard SB3
1. Using Mendel's Law of Segregation and Law of
Independent Assortment, explain how meiosis leads to genetic variation.
Answer:
Homologous chromosomes can independently assort along the metaphase plate during metaphase 1, meaning it doesn't not matter the order in which they line up, making it have more diverse possibilities. The law of segregation says that one allele from a gene can go to either gamete randomly, therefore there are 4 genetically different gametes from each parent that can be formed and come together to form a genetically diverse person.
Explanation:
1. Did the overall population of thr villages increase decrease or remain constant?
2. Did evolution (change in genotype frequency) occur in this population?
3.which genotypes(s) was selected for by natural selection?
4. Which genotypes(s) was selected against by natural selection?
5. Which genotype remained the lowest portion of the population? Why did this percentage remain so low?
Answer: remain constant
2 no
3. 1 2 and 4
4. 4 just 4
5. it remained low because EOF natural selection
In the case of blood types, both alleles A and B may be expressed as the phenotype. This exemplifies:
Answer:
Codominance
Explanation:
Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.
What is the defination for monocots and it's characteristics?
Explanation:
Definition of monocot
: a chiefly herbaceous angiospermous plant (such as a grass, lily, or palm) having an embryo with a single cotyledon, usually parallel-veined leaves, and floral organs arranged in multiples of three : monocotyledon Monocots account for a quarter of all flowering plants.
Why is the sky blue according to Science.
Answer: The sky is blue due to a phenomenon called Raleigh scattering.
Explanation:
Answer: Raleigh scattering is the scattering of electromagnetic radiation by particles with smaller wavelengths. Shorter wavelenght waves are blue-hue.
Explanation:
Which statement best explains why the population stabilized and why?!
A population of chipmunks migrated to an environment
where they had little competition, Their population quickly
increased but eventually stabilized as shown in the graph.
A. Interbreeding between members of the population increased the mutation rate.
B. A predator species came to the area and occupied the same niche as the
chipmunks
C.
The population size became limited due to factors such as availability of food.
D. An increase in the chipmunk population caused an increase in the producer
population.
Answer: C. The population size became limited due to factors such as availability of food.
Explanation:
Out of all the choices, C is the most likely to happen since more often then not, food runs out because a species has too many members. C is an example of the environment’s carrying capacity limiting the chipmunk species.
Since we are not told if the chipmunk population is really small, interbreeding may not happen. Predators hunt prey, not eat fruits like chipmunks do (I’m assuming what chipmunks eat.) If there was a predator species that came in, they would hunt the chipmunks instead of competing for the same resources. D just doesn’t make much sense in my opinion because that wouldn’t limit the chipmunk population.
The population size became limited due to factors such as availability of food in the chipmunks. Thus the correct option is C.
Why the population size become limited?The population size become limited because of carrying capacity. It can be defined as a species' average population size in a particular habitat.
The chipmunks species population size is limited by environmental factors like adequate food, water, shelter, and mates. If these needs are not met, the population will decrease until the resource resile.
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HELPPPPP!!!!!
The following are true of DDAVP or desmopressin except
D. it helps to stimulate the urinary bladder to produce more urine.
C. it is administered by injection
A. it is a form of vasopressin
B. it is used to take the place of ADH
Answer:
i think its BExplanation:
*What is the relationship between DNA and gene expression? How do they depend on each other?*
Answer:
Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. When the information stored in our DNA? is converted into instructions for making proteins? or other molecules, it is called gene expression
Explanation:
DNA makes genetic expression. DNA is a structure located in the nucleus that makes people themselves. DNA is unique to everyone, no two people are exactly the same. The way the DNA is structured and what instructions it was given affect one's genetic makeup.
4. Using the Celsius scale, at what temperature does water freeze? At what temperature does water boil?
Answer:
Using celsius water freezes at 0, and water boils at 100.
Explanation: That is the purpose of the celsius scale to measure between those two points.
Which statement about US greenhouse gas emissions is supported by the bar graph? Emissions decreased every year between 2005 and 2014. Emissions increased substantially between 2005 and 2014. After peaking in 2007, emissions dropped every year through 2014. After peaking in 2007, emissions went up and down through 2014.
Countries often have records of gas emissions in their county. The statement about US greenhouse gas emissions is supported by the bar graph is that after peaking in 2007, emissions went up and down through 2014.
Greenhouse gas emissions often takes place due to the activities of human. These activities acts as a catalyst to powerup the greenhouse effect, causing climate changes.Recorded data of gas emissions has shown that after it peaked in 2007, reduction is said to be of averaged 1.3% per year but the data of U.S. energy-related CO2 emissions in 2019 shows that it was 1.8% greater than in 1990.
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Answer:
D. After peaking in 2007, emissions went up and down through 2014.
Explanation:
EDGE2021
Which of the following structures is known as the power house or power generator of a cell?
оооо
mitochondria
rough ER
smooth ER
cytoskeleton
where do duplicated chromosomes line up during metaphase?
How is molecular nitrogen (N2) utilized by plants and animals?
Before it can be utilized by plants and animals, molecular nitrogen (N2) must be converted by microbes that use N2 as a replacement for
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer:
Oxygen ✓
Explanation:
That's it and it's actually simple and correct
How to Determine density from an experiment ?
Answer:
To find the total Volume displaced, subtract Initial Volume and Volume of Object. To calculate Density divide the Mass in grams by the Volume displaced in milliliters. Finally record whether the object floats or sinks.
Explanation:
how can I study quickly
Answer: Time yourself, takes notes(postcards), try listening to music, try exercising to see if it relieves stress, get more sleep, test yourself, go to your teacher for study guides or explanations
Explanation: Help yourself for a better future, and also Search for questions online or from your teachers
how is the magnetic field of a magnet represented ?
first to answer gets brainliest!
Answer:
Continuous lines of force/magnetic flux
The preganglionic fibers of the sympathetic nervous division originate in segments ____ of the spinal cord and first enter the ____ ganglia.
Answer:
T1 to L2 ; Sympathetic Chain
Researchers continued to record the deer population for many years after the coyote reduction. After a few years of growth, the deer population stopped changing much and stayed consistent. What is the term that best describes the continued stability of the population in this ecosystem?
Exponential growth
Carrying capacity
Overshoot
Limiting factor
Carrying capacity is a constant that equals population size at the equilibrium point. The term that best describes the continued stability of the population is option B, carrying capacity.
---------------------------------
Populations that exhibit the logistic growth model depend on density.
Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate.
The population per capita growth rate decreases as population size increases.
The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that equals population size at the equilibrium point, in which the natality and the mortality rate get equal to each other.
Assuming that population size is N, when
N<K, the population can still grow. N approximates to K, the population´s growth speed decreases. N=K the population reaches equilibrium, N>K, the population must decrease in size because there are not enough resources to maintain that size.The sigmoid curve represents the logistic growth model.
The carrying capacity might be affected by different factors, known as limiting factors, which might be a result of the population density (for example, competition) or might be density-independent.
Dense-independent factors might be human impact or natural disasters (fires, volcanic eruption, flooding).
In the exposed example we have a small population of deer that could grow and increase in size because of the absence of its predator.
This deer population exhibited continuous growth until it reached a certain point in which it remained stable.
This point is the carrying capacity.
At this point N = K ⇒ the deer population stoped increasing its size because it reached the environmental maximal capacity.
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80. An atom is to a molecule, as a
to a cell
A. an organism
B. an organ
C. a tissue
D. an organelle
Answer: C. a tissue
Explanation:
Explain why carbon dioxide is constantly given off during the Krebs cycle.
Answer:
Hope it helps
Explanation:
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Glycolysis and the citric acid cycle both produce carbon dioxide, which is a crucial byproduct (Krebs cycle). This oxidized carbon is a metabolic waste product that must finally be eliminated through transit to the lungs and subsequent exhalation into the environment.
What is the purpose of Krebs cycle?
Pyruvate is converted into three different products by the Krebs cycle: carbon dioxide, a little quantity of ATP, and the reduced molecules NADH and FADH.
Each acetyl group adds two carbon atoms to the citric acid cycle. On each cycle turn, two carbon dioxide molecules are emitted.
However, these do not include the identical carbon atoms that the acetyl group contributed on that turn of the circuit.
Therefore, carbon dioxide is constantly given off during the Krebs cycle.
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What structural adaptation in chickens allows them to lay their eggs in arid environments rather than in water
The body has a number of systems that protect against infection.
Which of the following correctly orders four of these systems from most to least foundational?
Choose 1 answer:
A. B cell lymphatic tissue, lymph node, lymphatic system
B. B cell, lymphatic tissue, lymphatic system, lymph node
C. lymphatic tissue, B cell, lymph node, lymphatic system
Th appropriate ordering of the body system from least to most foundation in which they protect the body against infection is as follows.
cell lymphatic tissue, lymph node, lymphatic system, option A is correct.
The body has levels of organisation that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs
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Which of the following statements BEST describes photosynthesis?
Photosynthesis uses light energy to convert glucose and carbon dioxide to oxygen and water.
Photosynthesis uses light energy to convert carbon dioxide and oxygen to glucose and water.
Photosynthesis uses light energy to convert carbon dioxide and water to glucose and oxygen.
Photosynthesis uses light energy to convert glucose and oxygen to carbon dioxide and water.
Answer:
Explation 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.
what type of a receptor would provide information on lung expansion to respiratory centers in the brainstem?
The current human population growth rate is 1.12% per year. At this rate, how many years will it take for our population to double in size?
Answer:
62.5
Explanation:
The solution for doubling time is 70/(current % growth rate)
5. Viruses are not cells, nor are they made of cells. They also cannot
reproduce without another living cell. Which statement about viruses
is true?
A. viruses do not have a nucleus
C. virus are made up of tissues
B. viruses are multicellular
D. viruses are made up of organs
Answer:
B
Explanation:
... I think :] it could also be D
19. An ectotherm is also called a a. thermoregulator. b. thermoconformer. c. homeotherm. d. poikilotherm.
Answer:
An ectotherm can also be called a Poikilotherm.
:)