Answer:
Gametes are reproductive cells, such as sperm and egg. As gametes are produced, the number of chromosomes must be reduced by half. Why? The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells
Explanation:
What can mrna do that dna cannot?
Answer: b
Explanation:
4. Analyze: Compare the offspring traits to the parent traits.
A. Which traits were passed from parents to offspring? __________________________
B. Which traits were not passed down? ______________________________________
Traits that are not passed down (not inherited) are called acquired traits.
Answer: 4a. The transmission of characteristics from parents to offspring is called heredity, and the characteristics that are inherited can be predicted. 4b. An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence. Acquired traits are synonymous with acquired characteristics.
Explanation:
which of the following statements about the intent of earth's global ocean is correct
Answer:
4
Explanation:
the ocean covers 70% and land covers 20%
Four students provide their teacher with an explanation of why photosynthesis is considered a chemical change. Luke: Photosynthesis is considered a chemical change because the CO2 molecules disappear and the O2 molecules reappear. Jackie: I know that photosynthesis is a chemical change because all of the reactants undergo a state of matter change and are all present as a product. Tara: Through photosynthesis, the CO2 and water are changed into new substance, glucose, therefore it is considered a chemical change. Skyler: Photosynthesis is a chemical change because solar energy is required. Which student provides the best explanation of why photosynthesis is a chemical change
Answer:
The best explanation was provided by the student Tara who said: "Through photosynthesis, the CO2 and water are changed into new substance, glucose, therefore it is considered a chemical change".
Explanation:
A chemical change is one which is not easily reversible and which results in the formation of new subsatances.
For example, in photosynthesis,a new substance, glucose is formed from the original substansubstances, carbon dioxide and water. Also, the reverse process of the formation of carbon dioxide and water from glucose is not easily obtained in plants.
From explanations provided by the students :
Luke does not give any explanation of the process but only an observation
Jackie's explanation does not state the main reason why a chemical change differs from a physical one.
Tara, gives the best explanation as the reason why a change that occcured is a chemical change is clearly stated.
Skyler does not state the main reason why photosynthesismis a chemical change as well, because even physical changes like evaporation of water involves solar energy.
Compared with mitosis, the process of melosis results in daughter cells that are?
Answer:
Cells divide and reproduce in two ways, mitosis, and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Explanation:
what is pollen
what is the purpose
Explanation:
a fine powdery substance, typically yellow, consisting of microscopic grains discharged from the male part of a flower or from a male cone. Each grain contains a male gamete that can fertilize the female ovule, to which pollen is transported by the wind, insects, or other animals. This is called pollen .
How does your body become bigger
Answer:
Your body becomes bigger through puberty
What will pair with adenine?
In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C.
This makes a water molecule a ___ which allows for other water molecules to "stick" together
A . non-polar molecule
B. ionic molecule
C. polar molecule
Answer:
Polar molecule
Explanation:
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What type of organ has lost its original function through the process of evolution?
A)analogous structures
B)vestigial structures
C)embryologic structures
D)homologous structures
Answer:
B
Explanation:
vestigial structures like appendix,external part of ear,etc have lost their original function through the process of evolution.
Answer:
B
Explanation:
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Hurricanes and severe storms can lead to flooding. Homes are damaged from rising water. The water can enter the home through broken doors, windows, and roofs. Homeowners need to quickly remove the standing water. Which answer is least related to a homeowner quickly working to achcieve a healthy home?
A. Limiting human and pet parasites
B. Removing mosquito and insect larvae
C. Preventing the growth of mold and mildew
D. Settling home and medical insurance claims
Answer:
I would say that the answer is A :)
Explanation:
What is work?
A. The amount of force applied over time
B. The product of a force moving something over a distance
C. The total amount of time it takes to move something
O D. The amount of power used
Answer:it’s A
Explanation:
What were the sources of genetic variation in the population?
Answer:That is, the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying the3 this is kne f3rcdwecdecfefvrgbvgrbv
Explanation:
and this is sound nba moruf nba mdidd
PLS HLP Excess carbon dioxide should be prevented from entering the atmosphere.
Explain why.
Answer:
I will Plant more tree or just Plants in general
Explanation:
Because plant take in Carbon and realease oxygen that we human take in. And also it will prevent it form getting into the atmosphere because it will all be absorbed by the plants
Compare and contrast the location and function of ribosomes in prokaryotic and eukaryotic cells.
Answer:
Explanation:
In eukaryotic cells, ribosomes are found in the cytosol of a cell, the mRNA , endoplasmic reticulum and also the matrix of the mitochondria. They are large molecules that catalyzes the synthesis of proteins, which is called translation. The ribosome choose tRNA and covalently links the amino acids into a polypeptide chain.
In prokaryotes, it can be found in cystosol and it help translate genetic code into protein.
Organisms that eat plants are called ____________ or ____________.
Answer:
herbivores or omnivores
Help due today Please
What are the steps of gene expression?
A) 1. DNA gives rise to proteins. 2. Proteins make genes. 3. Genes are traits.
B) 1. RNA makes proteins. 2. Proteins catalyze chemical reactions. 3. Chemical reactions result in DNA.
C) 1. DNA forms genes. 2. Genes are expressed proteins. 3. Proteins give rise to RNA.
D) 1. DNA gives rise to RNA. 2. RNA gives rise to proteins. 3. Proteins catalyze chemical reactions that generate traits.
i am not good in this but i will be glad to help your Answer is : A
Benda langit yang mengelilingi Matahari, berkumpul pada lintasan yang dinamakan sabuk asteroid dan mengandung sedikit logam adalah
Answer:
English please I can't understand
Explain what would happen to a person if they eat/drink something that their body does not have an Enzyme for?
Answer:
People with lactose intolerance may have a variety of symptoms. It all depends on how much dairy or how many milk-containing foods the person eats and how little lactase the body produces.
Usually within 30 minutes to 2 hours after eating, someone with lactose intolerance will experience nausea, stomach cramps, bloating, gas, and diarrhea. This can be unpleasant, not to mention embarrassing if you're at school or out with friends.
Because many people may think they're lactose intolerant when they really aren't, it helps to see a doctor who can diagnose the condition correctly and advise you on ways to manage it.
True or false: Photosynthesis is an important part of the carbon cycle.
А
True
B
False
•Photosynthesis is an important part of the carbon cycle - True.
may this helps you
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It is true that photosynthesis is an important part of the carbon cycle. The correct option is A.
What is the role of photosynthesis in carbon cycle?Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy.
Plants absorb carbon dioxide and sunlight during photosynthesis to produce fuel glucose and other sugars for plant structure construction. The fast (biological) carbon cycle is built on this process.
The carbon cycle includes cellular respiration and photosynthesis. The carbon cycle refers to the processes by which carbon is recycled in the biosphere.
While on the other hand cellular respiration emits carbon dioxide into the environment, photosynthesis absorbs carbon dioxide.
Carbon dioxide is removed from the atmosphere by photosynthesis and replaced by cellular respiration. Photosynthesis takes oxygen from the atmosphere and cellular respiration replenishes it.
Thus, the correct option is A.
For more details regarding carbon cycle, visit:
https://brainly.com/question/1627609
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What Are The Reason(s) the Body Responds to Stimuli?
Answer:
All living things are able to respond to stimuli in the external environment. To detect stimuli, organisms have means for receiving information, such as eyes, ears, and taste buds.
Explanation:
4. Which of the following is NOT true of the digestive system? a. The stomach contains acids to break down food b. Digestion begins with enzymes in the stomach c. The large intestine absorbs water from the digestion of nutrients d. The small intestine does most of the absorption of nutrients
Answer:
B. Digestion begins with enzymes in the stomach
Explanation:
The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.
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Begin by selecting a freshwater or marine aquatic ecosystem as a model for your food web. Be specific. Choose a specific lake. Or, if you choose an ocean ecosystem, identify its geographical area and depth. Keep in mind that deep-sea organisms live in a completely different environment than surface aquatic organisms.
Next, conduct research on the following conditions in the ecosystem you chose. They influence the types of organisms that can live there.
geographical features
temperature
depth/light availability
salinity
pH
unique features that contribute to the ecosystem, such as other bodies of water that connect to it, unusual chemistry, and climate
Using the information you gathered, write a paragraph that describes conditions in the ecosystem.
How much time do you have, this may take at least 30 minutes?
The following is a growth curve of bacteria. What type of growth curve is pictured? A) linear growth B) logistic growth C) exponential growth
Answer:
C) exponential growth
In the given figure, exponential growth curve is pictured.
What is exponential growth?It is the pattern of data, which demonstrates greater enhancements with passing time, giving rise to a curve of an exponential function. During the growth cycle of bacteria, the cells of bacteria goes through different phases, that is:
Lag phaseExponential phaseStationary phaseDeath phaseIn the case of bacteria, the cells enter the log or the exponential phase after the lag phase. This is the time when the cells get differentiate by the process of binary fission and double in numbers after each generation time.
In this pattern of growth, the metabolic activity is high as RNA, DNA, the components of the cell wall, and other substances essential for growth are generated for differentiation.
Thus, the pattern of growth demonstrated in the given figure is exponential growth.
Find out more information about the growth curves here:
https://brainly.com/question/24585257
Explain how scientific study is always an ongoing process?
What happened at the end of the most recent ice age?
Answer:
What ended the last ice age?
That CO2 then warmed the globe, melting back the continental ice sheets and ushering in the current climate that enabled humanity to thrive. That, at least, is the story told by a new paper published in Nature on April 5 that reconstructs the end of the last ice age.
Explanation:
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Answer:
pollute groundwater
Explanation:
plans to stop deforestation?
Answer:
Start planting trees
Explanation:
That's the sum of the domestic campaign so far.Soon all the neighbors will be carbon copying each other.
Answer:
Deforestation can be averted by various countermeasures. First of all, we should afforestation which is growing of trees in the forest. This would help to resolve the loss of the trees cut down. Moreover, the use of plant-based products should increase.
Explanation:
Some examples:
Begin by hugging a tree. ...
Start planting trees. ...
Stop printing and go paperless. ...
Recycle paper and cardboard. ...
When shopping, move towards buying recycled products mainly. ...
When at home, recycle as much as possible.
Hope this helps :)
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List AND Describe the 3 physical properties of water.
Answer:
the three main ones that i could find is
Solid
Liquid
Gaseous
solid because you can freeze it.
liquid because thats its natural form
and gaseous because you can steam it.