Answer:
It is A, They are all very reactive nonmetals with similar chemical properties.
The energy that enters or leaves a living system during cellular processes comes from:
A transforming matter into energy
B the kinetic energy of electrons in motion
С
the building or breaking of chemical bonds
D absorbing heat in the environment
A student makes the following list of facts about a groups of objects in space while watching a NASA documentary:
- made of 200 billion stars
- 300 million light years from Earth
- 100 light years in diameter
Which of the following components of the universe is the student most likely describing?
(1 Point)
A galaxy
The universe
A constellation
The solar system
Answer:
the solar system of the universe is most likely.
What is the complementary sequence of the DNA strand modeled below?
3' AATCGC 5
Answer:
5' GCGATT
Explanation:
Complementary sequence: Nucleic acid sequence of bases that can form a double- stranded structure by matching base pairs. For example, the complementary sequence to C-A-T-G (where each letter stands for one of the bases in DNA) is G-T-A-C.
Which statement below, is the best way to state the function of photosynthesis?
A To get rid of carbon dioxide from the plant, as it is toxic.
B To convert solar energy into chemical energy stored in glucose.
C To allow cells to breakdown glucose, thus releasing the stored energy.
D To produce oxygen.
Answer:
,,,lll
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mmmmmkk
The concept of gene flow is demonstrated when a cow is driven off from its herd, joins another herd, and reproduces. When the cow contributes to the gene pool of the new herd, which of these most likely increases?
Complete question:
The concept of gene flow is demonstrated when a cow is driven off from its herd, joins another herd, and reproduces. When the cow contributes to the gene pool of the new herd, which of these most likely increases?
natural selectiongenetic variationenvironmental fitnessgene mutationsAnswer:
genetic variation
Explanation:
Whenever migration occurs between two populations, there is genetic flow going on. Genetic flow is an evolutive strength only if migration > 0 and if the allelic frequency in one generation is different from the allelic frequency in the next generation.
Genetic flow acts homogenizing the allelic frequencies between the two populations, and it might introduce variability into the new one.
For genetic flow to be possible, there needs not only the movement of the genes from one population to the other but also the reproduction process on the new population. Hence, it involves an interaction between the dispersion pattern and the reproductive system.
The bigger the difference in allelic frequencies between populations is, the bigger is the effect of the genetic flow.
Pls help ASAP my teacher is mean
Answer:
A) the different humidity
What is CRISPR-Cas-9? a A medical device made of titanium that cuts genes. b A metal tool used for cloning animals. c A gene editing tool used to cut specific genes
Answer: C. A gene editing tool used to cut specific genes.
Explanation:
CRISPR is simply a family of the sequences in DNA thst are found in certain organisms like bacteria. They are used in the detection and also in destroying DNA.
The CRISPR-Cas9 enables geneticist to
remove or alter parts of the gene. It is a simple, and precise method for manipulating genes.
Answer:
C. A gene editing tool used to cut specific genes.
Explanation:
Hope this helps
Which gas is released due to photosynthesis?
A Carbon dioxide
B Oxygen
C Nitrogen
D Methance
Answer:
Oxygen
Explanation:
Plants take in Carbon dioxide and releases Oxygen
What is the Sun’s role in Photosynthesis and what type of energy conversion occurs
during the process?
Answer:
Explanation:
Sunlight is needed for photosynthesis because the solar energy is what is converted to chemical energy by the plant's chloroplasts. This energy is necessary for the production of glucose, which provides usable energy for the plant. the energy convertion turns solar energy into chemical energy
A student cross-pollinates 20 pairs of pea plants that are heterozygous for flower color and sows all of the seeds obtained from the crosses. Once the seeds germinate, the student observes that the number of purple-flowered offspring is three times the number of white-flowered offspring. Which question is the experiment designed to test
Complete question:
I failed to find the complete problem, but there are a few questions that are usually of importance when performing crosses. These questions are described in the answer box.
Answer:
What is the phenotypic and genotypic ratio of the offspring? Which is the inheritance pattern in the population? What is the dominant trait?
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
What happened to the peppered moths of Manchester, England when industry boomed and coal smoke darkened the light grey bark of the trees?
Answer:
glades middle.
Explanation:
Which of the possible examples below would most likely lead to a change in the cell theory? A Scientists find life on Mars that is not made of cells. BScientists identify a cell organelle that practices the process of photosynthesis. C Scientists determine that an organism is living if it is made of twenty structurally-identical cells. D Scientists gather life from a volcano that is composed of cells which are very different from humans.
Answer: Probably B?
Explanation:
The possible examples below would most likely lead to a change in the cell theory: Scientists discover life on Mars that is not made of cells, i.e., option A, despite the fact that the cell theory states that all living organisms are made of cells.
What is the significance of the cell and its importance?Cell theory explains that life is made up of cells, but If scientists were to discover life on Mars that did not fit this definition, it would challenge the current understanding of the cell theory and the discovery of life on Mars that is not composed of cells would indicate that the cell theory is not universally applicable.
Hence, the possible examples below would most likely lead to a change in the cell theory: Scientists discover life on Mars that is not made of cells, i.e., option A, despite the fact that the cell theory states that all living organisms are made of cells.
Learn more about the cell and its importance here.
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Where does the salt in salt water come from? Choose the two correct answers. A. dissolved salts from rocks B. rainwater flowing over land C. rainwater falling on oceans D. river water flowing into the ocean E. melting glaciers and polar ice caps
Answer:
C
Explanation:
when the rain falls its slightly acidic and that will erode the rocks on the ocean floor causing the water to be salty
Answer:
I feel like it would be A and C
PLEASE HELP!!
How can garbage dumps pollute water?
garbage finds its way into streams and rivers
water overflows garbage dumps and moves into drainage systems
rainfall carries pollution deep underground
garbage is blown out of dumps into living areas
Answer:
water overflows garbage dumps and moves into drainage systems
Explanation:
A widow's peak hairline (W) is dominant to straight hairline (w). Cross a heterozygous widow's
peak hairline person with a straight hairline person. What are the genotypic and phenotypic
ratios of their offspring
Answer:
Use a punnett square! I'll attach an example.
Genotype - Genetic constitution of dominant and recessive traits inherited from parents. BB, Bb, & bb can be used to represent these.
Phenotype - Observable. If a dominant trait is present, it shows as the phenotype. For example, brown hair is dominant to blonde hair. A person with a BB or Bb genotype will have brown hair, but a person with a bb genotype will have blonde hair.
Statistically, they have a 50% chance of a child with a widow's peak, and a 50% chance of a child with a straight hairline.
The genotypic and phenotypic ratios of their offspring are 50% and 50% ratio of the child.
What are the heterozygous ?
The heterozygous are the condition where you have inherited different forms of a particular gene from each of your biological parents. By different shapes we generally mean that there are different parts of the gene where the sequence is different.
Genotype - Genetic charter of dominant and recessive developments inherited from parents. BB, Bb, & bb may be used to symbolize these.Phenotype - Observable. If a dominant trait is present, it indicates because the phenotype. For example, brown hair is dominant to blonde hair. A individual with a BB or Bb genotype may have brown hair, however someone with a bb genotype may have blonde hair.Statistically, they've a 50% risk of a toddler with a widow's peak, and a 50% risk of a toddler with a instantly hairline.
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The highest level of organization in an organism is
Answer: The biosphere
Explanation:
Answer:
Biosphere
Explanation:
because it encompasses all the other levels and also the biological levels of organisation of living things . Hope it is helpful and have a good luck
Hello, I'm 18 yrs, I just wanted to see the answer pls for this!
Answer:
Central diagram
Explanation:
Which statement describes an advantage of sexual reproduction?
Answer:
The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population.
Explanation:
What 2 body systems Uterus contracts to give birth
Plants use sunlight to convert nutrients into energy. What form of energy transfer is taking place?
The*blank1*energy of the Sun is converted into*blank2*energy by the plants.
options for blank1= chemical, potential, radiant, sound
options for blank2=chemical, kinetic, mechanical, thermal
Answer:
Osmosis is the form of energy.
..
What was the importance of the Supreme Court's decision in the case of Gibbons v. Ogden?
Answer:
Ogden (1824). In this Commerce Clause case, the Supreme Court affirmed Congress's power to regulate interstate commerce, and held that by virtue of the Supremacy Clause, state laws “must yield” to constitutional acts of Congress.
Explanation:
Brandy knows that chromosomes behave differently in meiosis and mitosis. What do chromosomes do in meiosis but not in mitosis?
Answer:
secure the cells
Explanation:
because they circle the cell in meiosis but not in mitosis
1
1 point
A genetic mutation causes a snake to have brown skin. After many generations, most of the
snake population has the brown skin mutation.
e
Which of the following most likely caused this change?
Snakes with the brown skin mutation are able to survive and reproduce more
successfully than snakes without it.
The same mutation occurred in other snakes in response to environmental conditions.
All the snakes in the area were infected with the mutation.
The other snakes changed their colors to mimic the brown snake.
2
1 point
Lo
Answer:
I think the answer is B. "The same mutation occurred in other snakes in response to enviromental conditions.
Explanation
Answer:
Snakes with the brown skin mutation are able to survive and reproduce more
successfully than snakes without it.
Explanation:
i already aswered this question correctly .
A town plans to clear a patch of forest to make a road wider. What possible changes should the town take into account?
Answer:
Remove vegetation and little damage to the forest.
Explanation:
The town has to remove all vegetation that is present along the road in order to make road wider but the people of town has to make sure that limited damage has to be done to the forest and organisms that lives in that forest ecosystem. Avoid unnecessarily cutting of trees and and add that side of forest to the road which has no or less number of trees so that trees can be saved from harm.
Problem 3: Unfortunately Punnett Squares are not always for finding out the best parts about parenting. They are often, as you will see in the next few lessons, often used to determine the probability of a disease being passed on to a child. We'll have you try one and see what that looks like. One such disease is Cystic Fibrosis. Let's assume both parents are heterozygous for Cystic Fibrosis. That means both parents carry the recessive gene for the disease, but because of the dominant genes they have, they don't have it. However, they want to know if they try to have a child, what the chances of the child would be for having Cystic Fibrosis?
Answer:
eh
Explanation:
A small and this of spring will be impacted, and this offspring will be normal. Therefore, it is clear that there is a 25% risk that the progeny may be impacted. Due to the fact that one in four people have cystic fibrosis, we can thus state that the likelihood that either of these two people's offspring will be affected is four to one. Therefore, this will be our last arm.
What is cystic fibrosis?The lungs, digestive system, and other body organs suffer severe damage as a result of the genetic condition cystic fibrosis (CF).
Mucus, perspiration, and digestive juice production are all impacted by cystic fibrosis. Normally thin and slick, they released fluids. However, CF patients' secretions are thick and sticky due to a gene abnormality. The secretions clog up tubes, ducts, and passages rather than functioning as lubricants, notably in the pancreas and lungs.
People with cystic fibrosis can normally go to school and work, but the disease is progressive and necessitates daily care. In many cases, their quality of life is higher than it was for those with CF in the past. CF patients may now live longer because to advancements in diagnosis and therapy.
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Lives of plants and animals.
4. Explain how plants and animals may be adapted to live in water
Answer:
These plants require special adaptations for living submerged in water, or at the waters surface. The most common adaptation is aerenchyma, but floating leaves and finely dissected leaves are also common. Aquatic plants can only grow in water or in soil that is permanently saturated with water
Explanation:
Q. what will happen to a plant if its xylem is removed ?
Q. In which chamber of heart is oxygenated and deoxygenated blood found ?
Pls mate ans fast, hurry up
➜ The xylem tissue transports water and minerals from the soil to the leaves of a plant for photosynthesis. If xylem is removed, upward movement of water will stop leading to wilting of leaves and ultimately causes death of that plant.
➜ Oxygenated blood ⇢ It is found in left auricle and left ventricle.
Deoxygenated blood ⇢ It is found in right auricle and right ventricle.
What are some examples of traits?
Answer:
Character Traits List & Examples
Honest.
Brave.
Compassionate.
Leader.
Courageous.
Unselfish.
Loyal.
Answer:
Their could be traits such as the ones like features of your body. Or how you feel!!! So you could have brown hair. You could be bored. You could have a mustache.
Why are ribosomes necessary for both Prokaryotic and eukaryotic cells to function properly?
Answer:
ribosomes are found in both cells
Explanation:
Ribosomes are special because they are found in both prokaryotes and eukaryotes. While a structure such as a nucleus is only found in eukaryotes, every cell needs ribosomes to manufacture proteins. ... The attached ribosomes make proteins that will be used inside the cell and proteins made for export out of the cell
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