True or false: A selective force (such as antibiotics) must be present for DNA mutations to occur. Group starts

Answers

Answer 1

Answer: False

Explanation:


Related Questions

i need help this is due by 3:00 today

Answers

Answer:

the second to last one would be:

because we create too much waste. we have multiple companies creating harmful gases and liquids that are ruining our envoirment.

this will also help with a few other questions x

Easter Island once had a thriving tree population.
True
False

Answers

Answer:

True, if this helps can i have brainlist :D

Explanation:

In A.D. 1200 (or thereabouts), a small group of Polynesians — it might have been a single family — made their way there, settled in and began to farm. When they arrived, the place was covered with trees — as many as 16 million of them, some towering 100 feet high.

Answer: true i think

Explanation:

11. Is an individual with light skin color living at high latitude at risk of having low serum folate levels due to UV exposure? Why or why not?
12. Is an individual with dark skin color living at low latitude at risk of having vitamin D deficiency due to lack of UV exposure? Why or why not?

Answers

I have no idea...but I tried

What is the porosity of the silt sample?
A)
80%
B)
53%
C)
25%
D)
44%

Answers

Answer:

Explanation:

B = 53 %

is right....

Why is pinocytosis a form of endocytosis?

Answers

Pinocytosis is one type of endocytosis, the general process by which cells engulf external substances, gathering them into special membrane-bound vesicles contained within the cell. ... It is believed that a vesicle may carry extracellular fluid to the opposite side of the cell, where it undergoes exocytosis

Write a 3-4 paragraph scenario or story describing an activity or event that caused an injury to someone at that joint. Include at least 5 relevant vocabulary words in your scenario. Include treatment and prognosis of this type of joint injury.

Answers

jfiffufududufufuf is the answer

Describe how traits are inherited through sexual reproduction.

Answers

The resulting offspring inherit one half of their traits from each parent. The process where haploid sex cells are created from diploid parents is called meiosis, and it occurs only in the reproductive organs.

A family has a Y-linked disease that affects the father. What is the chance of a male offspring inheriting the same disease?

Answers

Answer:

100%

Explanation:

A sex-linked trait is a trait which is inherited on the sex chromosomes (X and Y chromosomes). This means that that trait is only inherited by offsprings of a particular sex. In this question, a family is said to have a Y-linked disease that affects the father.

Note that, Y chromosomes are only present in the male sex, meaning that a father will always transfer its Y chromosome to all his male offsprings. Since this disease (trait) is on the Y chromosome, it means that all male offsprings i.e. 100% of this father will have the disease.

help
i don’t understand this question

Answers

Yeah same mansion that

The particle of an atom. That carries no electrical charge is called a

Answers

Neutrons have no electrical charge

Answer:

Neutrons have no electrical charge. Protons and neutrons together make a dense bundle at the center of an atom. This bundle is called the nucleus. Electrons have a negative electrical charge (-) and move around the nucleus. Electrons are the smallest of these particles.

Hey yall you don't know me but can someone help ill do anything​

Answers

The answer is To your question is C

The following is a list of vessels. Place them in the order that blood would go through entering the systemic circulation. 1. Left ventricle 2. Aorta 3. Vena cavae 4. Pulmonary trunk 5. Pulmonary veins 6. Right atrium 7. Right ventricle 8. Left atrium

Answers

Might splash your b like Harry knicks

) What kind of approach to phylogeny reconstruction is ribosomal RNA sequencing: cladistic or phenetic

Answers

Answer:

cladistics

Explanation:

Cladistics is a phylogenetic approach used to classify groups of organisms based on shared derived characteristics (synapomorphies) that are not present in distant ancestors. Cladistics describes evolutionary relationships between organisms. Ribosomal RNA genes such as, for example, 5S ribosomal RNA, are appropriate for phylogenetic (cladistic) analyses because they are evolutionarily conserved between related species. Using ribosomal RNA genes, it is possible to trace evolutionary relationships ranging from kingdom level to genus. Unlike cladistics, phenetics is a method used to classify organisms based on the degree of similarity between them (usually by using external and/or morphological/observable phenotypic traits), regardless of their evolutionary relationships.

The major mechanism of action of anandamide appears to be: Group of answer choices presynaptic facilitation. postsynaptic facilitation. presynaptic inhibition. postsynaptic inhibition.

Answers

Answer:

presynaptic inhibition

Explanation:

Presynaptic inhibition is an inhibitory mechanism capable of modulating neurotransmitter release in the central nervous system (CNS), i.e., by suppressing the release of neurotransmitters from axon terminals. Endocannabinoids are neurotransmitters that bind to receptors in other cells, thereby indirectly affecting the activity of other neurotransmitters. Anandamide is a neurotransmitter derived from arachidonic acid -an omega-6 fatty acid-, whose effects are mediated by cannabinoid receptors in the CNS. This major endocannabinoid (anandamide) is thought to inhibit the release of the inhibitory neurotransmitter γ-aminobutyric acid (GABA).

What’s the answer to 1 and 2 please help me I’ll give brainliest

Answers

Answer:

1. Everything except for rocks

2.  Humans are burning carbon and putting it in the atmosphere

Explanation:

Emily's body starts to develop secretory glands at the end of the milk ducts in the breasts. Based on the given information, we can say that Emily is most likely to be in the _____ stage.

Answers

Answer:

Thelarche

Explanation:

In females, thelarche represents the start of puberty and as such it marks the beginning of the secondary development of the mammary glands known as breasts. This pubertal development usually occur in females that are between the ages of 8 years and 12 years due to the secretion of hormones such as estrogen.

In this scenario, Emily's body starts to develop secretory glands at the end of the milk ducts in the breasts. Based on the given information, we can say that Emily is most likely to be in the thelarche stage because she is beginning to experience breast budding.

((( HELP ASAP))) I GIVE BRAINLIEST
Which of the following correctly states the law of conservation of energy?

Question 5 options:

Transformations are inefficient because some energy is destroyed and lost as heat.


Energy is created when it is transformed from one form to another.


Energy can be created or destroyed, as well as transformed from one form to another.


Energy cannot be created or destroyed, but it can be transformed from one form to another.

Answers

Answer:

D the last one

Explanation:

Answer:

D- Energy cannot be created or destroyed, but it can be transformed from one form to another.

Explanation:

took the test

Where is most nitrogen found that is unusable by plants and animals?
A soil
B atmosphere
C ocean
D space

Answers

Answer:

b atmosphere

Explanation:

this is based off of past knowledge so if its wrong im sorry- but doesnt nitrogen take up most of our atmosphere? thats why i chose this

Which one has more thermal energy?
a. a pot of soup boiling on the stove b. a cup of hot coffee
c. a bathtub full of warm water
d. an ice cube in a glass of lemonade

Answers

a bathtub full of warm water

Two reactants that are used in the process of photosynthesis are __________

A
water and carbon dioxide

B
glucose and water

C
carbon dioxide and oxygen

D
oxygen and water

Answers

Answer:

a water and carbon dioxide

Explanation:

Please help me guys!!
Describe what role do humans have in protecting or changing this issue? Explain steps or plans you would implement.

Here are a few examples of ideas you could discuss:

Climate change

Habitat destruction

Invasive species

Pollution

Overpopulation

Overconsumption-exploitation

Answers

Answer: Humans can address and resolve the issues related to their environment and social problems.

Explanation:

Climate change: The climate change is caused by the seasonal change or due to human oriented activities like burning of fossil fuels related to liberation of green house gases this is related to global warming.

Human beings can take initiative of utilizing less fossil fuels, planting more trees so that they can absorb more carbon dioxide gas which is a chief green house gas responsible for raising the temperature.

Habitat destruction: The habitat destruction happens when the habitat is destroyed due to forest fire, volcanic eruption, earthquake or cyclone.

Humans can build strong houses by keeping in mind the hazards can influence the building where they are living.

Invasive species: The invasive species is the one which is introduced into the new environment due to human effort or naturally. The invasive species reduce the population of the native species by competing for resources.

The humans can determine whether the invasive species can possibly affect the members of the native species or not. Possible measures can be taken to reduce their population by selective hunting.

Pollution: The contamination of air, water, and soil by the action of polluting agents is called pollution.

The pollution can be reduced by reducing or restricting the sewage and industrial discharge in water, stopping or reducing the use of fossil fuel which on burning produce contaminating gases, and reducing the use of polythene bags which can contaminate the soil.

Overpopulation: The overpopulation is condition in which the population of the species exceeds the carrying capacity of the region. The carrying capacity is the ability of the ecosystem to sustain a particular number of members of the species depending upon the availability of resources.

The overpopulation in case of humans can be controlled by use of contraceptives, small family rule adaptability, and by stopping early marriage as this can offer long reproductive period to couples.

How are humans changing the carbon cycle? Question 2 options: Humans are adding carbon to the Earth by over-farming. Humans are burning carbon and putting it into the atmosphere. Humans are planting more trees to add more oxygen to to the carbon cycle.

Answers

option “Humans are burning carbon and putting it into the atmosphere” is right

Can someone please help me with this? Thanks so much!

Answers

1. aabb, (made by ab x ab)

2. green and smooth

3. 3/16, (combinations would be AAbb, Aabb, and Aabb)

4. 1/16

5. 1/16 (only 1 AABB)

6. 4/16 (4 with AaBb)

Which type of brain wave originates in the central and pariental regions of the brain and is associated with normal sleeping

Answers

Answer:

Delta waves

Explanation:

This is because Delta waves are the slowest brain waves and they have they highest amplitude and these waves are responsible for normal sleep. They originated from Central and parental regions of the brain which is part of the cerebral cortex and they are refer to slow wave sleep. They can occur in the third stage of sleeping. They are deeply penetrated like drum beat and occur during deepest meditation and dreamless dream.

The light-independent reactions of photosynthesis needs __________.

A
water

B
carbon dioxide

C
oxygen

D
cellulose

Answers

The answer is B carbon dioxide Carbon dioxide will enter the Calvin cycle, eventually producing PGAL
The answer would be (B)
Have a wonderful day !

Where does magma come from? where does sediment come from?

Answers

Answer:

The composition of magma depends on the rock it was formed from (by melting), and the conditions of that melting. Magmas derived from ...

Answer:

Magma originates in the lower part of the Earth's crust and in the upper portion of the mantle where as Sediment is solid material that is moved and deposited in a new location.

(a) A cell where PKB is always active has a mutation that results in the permanent activation of GSK3. Based on the information in Figure 2, predict the effect of this mutation on the activity of glycogen synthase. Justify your prediction.

Answers

Answer:

a. Normally, PK2 activates PK1. We are told that PK1 and PK2 normally work sequentially in an intracellular signaling pathway. If PK1 is permanently activated, a response is seen independently of whether or not PK2 is present. If PK1 activated PK2, no response should be seen if PK1 were activated in the absence of PK2.

GSK-3 is an unusual protein kinase in that it displays high, “constitutive” activity in unstimulated cells and is rapidly inactivated upon a variety of cellular stimulations. The most thoroughly documented pathway for the inactivation of GSK-3 is in response to insulin and is mediated by protein kinase B (PKB, also termed Akt), which lies upstream of GSK-3 [8].

A cell wherein the PKB seems to be constantly active does indeed have a disorder that makes GSK3 to be permanently activated. Kinases, for example, control glycogen synthase as well as glucose acid phosphatase.

GSK3, as well as glycogen synthase kinases 3, is however one enzyme that is controlled through PKB phosphorylase kinases.Throughout one cell, PKB seems to be constantly in motion, culminating in GSK3 regulation, which would, in turn, be responsible for glycogen synthase activities only through the signaling cascade.

Thus the response above is correct.

Learn more:

https://brainly.com/question/24260430

can Multiple alleles affect eye color

Answers

Answer:yes

Explanation:

Genetic mutation

Which of the following lists the steps of technological development in the
correct order, from first to most recent?

Answers

C

The hot air balloon was invented before the first plane.

What evidence supports a conservation law?
Energy from sunlight becomes glucose during photosynthesis.
Carbon dioxide becomes glucose and oxygen during photosynthesis.
O Hydrogen is made from the breakdown of carbon dioxide during photosynthesis.
O Glucose and
oxygen become carbon dioxide and water during photosynthesis.

Answers

Answer:

yes

Explanation:

Answer:

its a

Explanation:

Other Questions
!! pls help !!when a consumer eats a producer, 10 percent of the producers energy is passed on to the consumer trophic level. what happens to the other 90%?a. it is consumed and used by the consumerb. it is used by the producer to pass on to the next trophic levelc. it is added back to the soil by decomposers d. it is used for cell processes or released as heat.why is there biomass at the top of the energy pyramid?a. secondary and tertiary consumers have to consume a lot more food to support themselves, so there are fewer of themb. secondary and tertiary consumers live longer, so there are fewer of them because they reproduce more slowly c. secondary and tertiary consumers are larger, so there are fewer of them d. secondary and tertiary consumers have bigger ranges, so there are fewer of them because they each need a lot of space Which detail from "Mohandas Gandhi: Truth in Action" introduces the idea that Gandhi influenced people outside of India?A.) "In London, he trained to become a lawyer."B.) "He was appalled to find that in some parts of South Africa, Indians were not allowed to vote or to own more than a certain amount of property."C.) "He stopped wearing Western clothes, learned to spin cloth, and wore only a cotton shawl and dhoti, a kind of loincloth, which had been spun by Indian hands."D) "In the United States, the Reverend Martin Luther King, Jr., once said that Gandhis words and actions showed him how to use nonviolence to lead the civil rights movement in the 1960s." please help me with this, picture is below. How does the underlined anology on page 2 support the authors purpose? Tennis: Which of the following is a true statement for winning a set. aa set can be won by a score of 5-3 ba set can be won by a score of 6-3 ca set can be won by a set of 6-5 dNone of the above The Price family decides they want to spend less than 300 minutes per week on screens. On Sunday, they watched a movie that was 84 minutes. If they want spread the rest of their allotted screen time evenly over the next 6 days, how many minutes can they spend on their screens each day? Solve for X for A and B 50 POINTS!!!! PLEASE ANSWER A,B, and C. A student incorrectly solved an exponential equation looking at the work shown, what mistake did the student make Leanne is picking out some movies to rent, and she is primarily interested in children's movies and comedies. She has narrowed down her selections to 18 children's movies and 7 comedies. Step 2 of 2 : How many different combinations of 3 movies can she rent if she wants at least one comedy Use the fraction models to solve the addition equation.There are two sets of fraction models. The first set has three fraction models, with two completely shaded, and the last one is partitioned into twelve equal parts with four parts shaded. The second set has two fraction models, with one completely shaded, and the last one is partitioned into six equal parts, with three parts shaded. Below is the equation two and four twelfths plus one and three sixths equals blank line. three and seven twelfths three and ten twelfths three and seven eighteenths two and twelve seventy seconds Which sentence best completes this diagram.A. religious leaders encourages ideas about equality. WILL MARK BRAINIEST!! Choose the most logical response to complete the following sentence:Mon amie est brsilienne. Elle vient ______ Brsilde la Brsilde Brsildu Brsil 20 pts HELP ME PLS !! What is the correct way to write the sentence below?When the student council met for the last time before the winter break, they made sure to vote on whether or not to have a holiday gift drive for underprivileged children.A. When the student council met for the last time before the winter break, it made sure to vote on whether or not to have a holiday gift drive for underprivileged children.B. When the student council met for the last time before the winter break, their made sure to vote on whether or not to have a holiday gift drive for underprivileged children.C. When the student council met for the last time before the winter break, them made sure to vote on whether or not to have a holiday gift drive for underprivileged children.D. When the student council met for the last time before the winter break, he or she made sure to vote on whether or not to have a holiday gift drive for underprivileged children. As North America was initially colonized by the Europeans, the lands that becameNew England, Pennsylvania and Virginia were mostly settled by: 1.Who are they that Niemller writes about, as in, first they came for...?2.What does it mean when he says, came for?3.Why does he repeat the phrase, Then they came for... several times?4.What does he mean by, I didnt speak up? 5.Do you think that everyone in Germany was partly responsible for the Nazis rise to power, or that only those active in the Nazi Party were responsible? Explain your answer. How do the interactions in Acts 1.1 and 1.2 develop macbeths character OK HELP ME IM FAILING PLEASE ILL GIVE BRAINLIEST I MEANT THIS IS LITERALLY 60 POINTS do you guys know how to post math pics On Sunday, Chris bought 5% of the cans from his grocery store in preparation for hurricane Sandy. If he bought 61 cans, how many cans did his grocery store have originally?