What does it mean to say a gene is under both positive and negative regulation?.
Answer:
In negative control, a regulatory protein shuts down transcription, and in positive control, an activator switches on transcription.
Explanation:
.
2. what is the trend between 20-30 years in the kelp population? explain.
The trend between 20-30 years in the kelp population is that it is reducing due to sea urchins eating kelp and clipping the bottoms, hence, stopping kelp from regrowing.
What is the trend in the Kelp population?Kelp is a form of giant seaweed found in ocean floors.
Kelp serve as food for certain sea animals such as sea urchins.
However, due to increasing number of sea urchins and increase in environmental pressures, the Kelp population reduced in the last 20 to 30 years.
Therefore, the trend between 20-30 years in the kelp population is that it is going down due to sea urchins eating kelp and clipping the bottoms, hence, stopping kelp from regrowing.
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In Cellular Respiration, Glucose is transformed into?
*
how often can a catalase molecule be used to hydrolyze hydrogen peroxide?
Answer:
One molecule of catalase can break 40 million molecules of hydrogen peroxide each second
Explanation:
How would mutation in the plakophilin gene lead to hyperhidrosis.
Mutation in the plakophilin gene can lead to hyperhidrosis because a change in the sequence of the plakophilin gene will hinder the production of a protein.
What is hyperhidrosis?Hyperhidrosis is a medical condition with the primary symptom of excessive sweating, in excess of that required for regulation of body temperature.
Mutation is any change or alteration in the genetic sequence of the genome.
Therefore, mutation in the plakophilin gene can lead to hyperhidrosis because a change in the sequence of the plakophilin gene will hinder the production of a protein.
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Which of the following lists organisms from oldest to youngest organisms on Earth?
a. bacteria, mammals, reptiles, fish
b. fish, bacteria, mammals, reptiles
c. bacteria, fish, reptiles, mammals
d. reptiles, mammals, fish, bacteria
Answer:
c
c is the correct anwser because if you date back to the young earth ot was nothing but water and bacteria was the first thing on earth and then came fish and then the land for reptiles
Ovulation involves the release of the _____________ from a mature follicle.
Answer:
ovulation involves the release of the secondary oocyte from a mature follicle
How can fish farming still deplete ecosystems?
A. Farmed fish often eat wild-caught fish.
B. Fish farming always occurs in the wild.
C. Farmed fish always live in self-contained units.
D.Farmed fish can be fed sustainably grown grains.
Answer:
B.
Explanation:
How does fish farming harm the local ecosystem?
Fish-farming is thought to contribute to eutrophication and the worldwide growth of this industry is of concern. Faeces and uneaten food pellets from fish farms alter the organic matter in the sediment, which can change the consumption of oxygen and cause local eutrophication.
6.04 energy conservation design worksheet
In this section, describe at least six green building approaches from the
lesson (or your research) that you would like to use in your model green
home.
Description of Green Source Approximate Energy
Price of Using the
Building Approach
Savings
Approach
Approach 1
Approach 2
Approach 3
Approach 4
Approach 5
Approach 6
Total Price
Energy Efficiency:
In this section, describe at least six energy-efficient appliances and
technologies from the lesson (or your research) that you would like to use
in your model green home.
Description of
Source Approximate Energy
Appliance/Technology
Savings
Price of Using the
Appliance/Technology
Telli
Item 2
Item 3
Item 4
fem )
Item 6
Total Price
The six green building approaches to use are:
Heating and Cooling system.Water collection systems.What are Green energy sources?
Others are;
Use of natural and recycled materials. Water Treatment and Waste Management.Promoting local food production.Integrated building processes.Green energy sources are known to be a kind of naturally sustained, energy source.
Energy-efficient appliances are:
Washing machinesDryersRefrigeratorsDishwashersDehumidifiers.Note that Green sources is one that des not used mining or drilling operations as it can cause great harm to our eco-systems.
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When are conservation efforts most effective?
a.
Conservation efforts are most effective when multiple groups cooperate.
b.
Conservation efforts are most effective when government is solely responsible for them.
c.
Conservation efforts are most effective with individual efforts.
d.
Conservation efforts are always effective.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A 100%
Explanation:
just took the test on edge
If the experimental animals in the chamber were engaged in physical activity, how would this change the results of the metabolism experiment
Answer:
it woud have tow different rezalts
Explanation:
Which of the following is not a possible cause for air pollution?
a. volcanoes
b. industry
c. combustion
d. none of the above
A farmer is struggling to control the population of a certain insect on his farm. After researching population control techniques, he discovers that a particular bird is a predator of this insect. The farmer purchases a number of these birds and releases them onto his farm.
How might the farmer’s action most likely have a negative impact on the ecosystem?
The birds will increase biodiversity of native plant species.
The birds will pollinate native species, increasing genetic variation.
The birds will consume beneficial insects, as well as the pest species.
The birds will mate with native birds and create a new species.
One of the effects of the farmer's action on the ecosystem would be that the birds will consume beneficial insects along with the pest species.
Ecological effects of biological pest controlBiological control of pest requires that a living organism that will prey on the pests are introduced into the ecosystem
However, the most effective biological control of pests has to do with introducing biological agents that are very specific in action.
Using a bird species to control insect pests may lead to beneficial insects being consumed along with the insect pest in the ecosystem. The loss of beneficial insects will create a new problem in the ecosystem.
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Energy Flow in Ecosystems
Answer:
Energy flow in ecosystem is SOLAR ENERGY.
I’m general how many human activities influence the carbon cycle
Explanation:
Factories, cars, oil producers, woodcutting, building houses, and even building new roads makes the carbon cycle harder to go through.
1.) What is ''Green Power?''
2.) Do you believe that we need to find alternate, environmentally friendly energy sources?
3.) How many possible ''green power'' options did you find?
4.) What were the options?
5.) Are any of these options being used today?
6.) Which, if any, do you feel are viable energy sources for the future? Why?
7.) Which, if any, do you feel are NOT viable energy sources for the future? Why?
Answer:
green power is power that doesn't hurt the environment or is able to be overconsumed
yes we should
wind solar hydro biofeedback
bio and solar are the most viable
wind bc it can over consume property and become a push factor
what does a stigma in a flower do?
Answer:
Part of the pistil where the pollen germinates
Explanation:
Stigma is the platform on which pollen grains land. Pollen drops on the stigma from where fertilization occurs. Stigma's main work is to basically receive the pollen, thus it has sticky surface.
Which problem does the Montreal Protocol attempt to remedy?
A.The hole in the ozone layer
B.The use of fossil fuels
C.The carbon market
D.The warming of Earth
Answer:
A.The hole in the ozone layer
Explanation:
• Montreal protocol is an international treaty that was signed to control the use of substances that are resulting in the depletion of the ozone hole.
This treaty was signed in the year 1987 and became effective form 1989.
• Since the time that this treaty has come into force, there has been a significant improvement in the ozone hole that was observed over Antarctic as it's size has decreased.
• This improvement has been possible because the treaty helped to phase out chemicals such as chlorofluorocarbons, carbon tetrachloride, etc. that are responsible for ozone hole depletion.
Astronomy
With all the interaction, competitiveness, and collaboration among countries around the globe with space travel, what role do you think politics plays (or has played) in these relationships regarding space travel? Explain and discuss.
Politics plays an active role in relation to space travel, as an example we can mention the space race during the Cold War.
What was the space race?It was the dispute for hegemony in space exploration between the United States and the Soviet Union in the period from 1957 to 1975 during the Cold War, which was a geopolitical conflict. This period was marked by major technological developments.
Therefore, the policy is an instrument capable of influencing space travel in order to generate collaboration and competitiveness between countries, being a positive instrument for further development in space exploration.
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Answer: Politics plays an active role in relation to space travel, as an example we can mention the space race during the Cold War. The space race was the dispute for hegemony in space exploration between the United States and the Soviet Union in the period from 1957 to 1975 during the Cold War, which was a geopolitical conflict. This period was marked by major technological developments.
Explanation:
Hybrid offspring such as mules and zonkeys that are produced when two different, but similar species mate are not considered a true species because the hybrids are infertile. What type of reproductive isolation does this illustrate?
a. behavioral prezygotic reproductive isolation
b. gametic prezygotic reproductive isolation
c. postzygotic reproductive isolation
Answer:
I'd sat b
Explanation:
is this a question or a test or something
what are the major schools of thought on personality
HELP PLEASEEE!!!
Answer:
Structuralism and Functionalism
Explanation:
Structuralism is widely regarded as the first school of thought in psychology. This outlook focused on breaking down mental processes into the most basic components. Major thinkers associated with structuralism include Wilhelm Wundt and Edward Titchener.
Nick is smiling even though he does not feel happy. After a short time he feels happier. The best explanation for Nick's change in mood is
O bottom-up processing
o facial feedback
selective encoding
O justification of effort
o facial feedback
When someone replicates a emotion, they tend to feel it
Nick is smiling even though he does not feel happy and after a short time he feels happier too. This change in mood is due to facial feedback. Therefore, the correct statement is option B.
What is the facial feedback mechanism?Facial feedback is a psychological theory that suggests that the expression on a face of a person can influence their emotions and mood also. Therefore, when a person smiles even when they are not feeling happy, it can trigger positive emotions in the brain that change in mood.
Nick is smiling even though he is not feeling happy. Therefore, this act of smiling can trigger positive emotions in his brain and changes his mood because of the facial feedback mechanism.
However, bottom-up processing is the processing of sensory information from the environment to create a perception, while selective encoding is a process of selectively attending to and encoding certain aspects of a stimulus while ignoring others.
Therefore, Nick is smiling even though he does not feel happy and feels happy after a short time due to facial feedback.
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Photosynthesis and ______are considered opposite reactions. The matter is _______
between each process, because the products of one reaction are the reactants of the
other reaction.
In 2001, the Human Genome Project reported that humans have about 30,000 genes. By 2018, researchers had revised that number to
In 2001, the Human Genome Project reported that humans have about 30,000 genes. By 2018, researchers had revised that number to 20,700. This is further explained below.
What is Genome?Generally, Genome can be defined as a gamete or microorganism's haploid pair of chromosomes or each cell of a multicellular organism
In conclusion, researchers had revised that number to around 20,000 to 25,000 in later years
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An obstruction in the glomerulus would affect the flow of blood into the:
Which are ethical concerns related to editing the genes of germline cells?
Select all that apply.
The risk of unknown side effects if we allow it.
The cost of human suffering if we don’t allow it.
The effects on future generations if we allow it.
The risk that genes will not end up in future generations if we allow it.
The ethical concerns related to editing the genes of germline cells include the risk of unknown side effects and effects on future generations.
What is gene editing?Gene editing refers to the genetic engineering technologies aimed at modifying the content of genes.
Germinal gene editing assumes the edition of the germinal line and therefore it affects the gene content of future generations.
In conclusion, the ethical concerns related to editing the genes of germline cells include the risk of unknown side effects and effects on future generations.
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In peas, the trait of plant height is determined by a dominant tall allele and a recessive dwarf allele. A true-breeding tall plant is crossed to a true-breeding dwarf plant. What do you expect to see in the offspring of this mating?
Answer:
Here is the answer...hope it helps:)
Which of these is not a direct function of mitosis in humans?
O development from embryo to adult
O reproduction to produce the next generation
O repair of damaged tissue
O growth
Answer:
O reproduction to produce the next generation
Explanation:
Meiosis is responsible to reproduction (not mitosis). The rest of options are for mitosis.
The one that is not a direct function of mitosis is reproduction to produce the next generation. The correct option is B.
What is mitosis?Mitosis is a type of cell division in which one cell (the mother) divides to produce two new genetically identical cells (the daughters).
Mitosis is the process by which the DNA of the cell's nucleus is divided into two equal sets of chromosomes in the context of the cell cycle.
Meiosis is the process by which egg and sperm cells are formed. Mitosis is a necessary process for life.
Meiosis is a type of cell division that produces four gamete cells while reducing the number of chromosomes in the parent cell by half.
This process is necessary for the production of egg and sperm cells for reproduction.
Thus, the correct option is B.
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What features generally characterize cancer cells? Select all that apply.
A. rapid cell division
B. large or irregularly shaped nucleus
C. lack of cell organelles
D. long tubular shape
Which event is directly mediated by a ligand-gated ion channel?.
Answer:
Influx of Na+ across the motor end plate resulting in the depolarization of the muscle fiber membrane
**because the influx of Na+ across the motor end plate occurs when Na+ ion channels bind the ligand acetylcholine.
