Answer:
A macromolecule is a very large molecule, such as protein, commonly composed of the polymerization of smaller subunits called monomers. They are typically composed of thousands of atoms or more. A substance that is composed of monomers is called a polymer .
Explanation:
Question 3 of 5
Which two particles are found in an atom's nucleus?
Answer:
protons and neutrons.
Explanation:
I need help please 10 points
Answer:
Recessive
Explanation:
because, if the first generation is purple flowers that means the purple flower Dominant, Which makes the white flower Recessive.
diversity increases the chances that individuals will possess favorable traits needed to survive changing environmental conditions
Answer:
True
Explanation:
When we have a narrow gene pool for our offspring that narrows down the favorable traits that the offspring can have. This can lead to the offspring having more traits that are not so good in its family tree and leave it not suited for a given environment. On the other hand, if the diversity is large it will lead to more offspring having more favorable traits and more adaptation to their environment.
WILL GIVE BRAINLIEST!!!!!!!
Answer:
Answer is B
Explanation:
I had a project on this
Describe the menstrual cycle depending on its variation of length and fertile and infertile phrases
Free points sorry man or woman its a rough world out here
What is the deletion?
A. An extra-base was added in
B. A base was removed
C. The wrong bases were matched together
Which characteristic of mitochondria supports this theory of development
Answer:
both contain DNA molecules
Explanation:
Few plants can survive in a desert because
A.There are many herbivores B.The sun is too hot
C. The climate is too dry
D. Too much leaching occurs
Answer: C
Explanation: If you were to travel to the desert, the only plants you would find would be shrubs and cacti, because unlike most plants, they are able to survive in a dry climate with very little water. All plants need the basics- that is, sun, water, and CO2, but only a select few have been able to adapt to the harsh desert climate. There are other places in the world where there is intense sunlight all day, (like my front yard, for example, which is ALWAYS yellow smh) but the plants usually are okay as long as they get enough water, which my grass doesn't lol.
PLZZZ HURRY!! I WILL GIVE 20 POINTS
In fruit flies, straight wings are dominant and curly wings are recessive. What will the generations look like? Assume that Mendel’s method of crossing two true breeding parents with opposite traits is followed. Check all that apply.
The P generation has all straight wings.
The P generation has straight wings and curly wings.
The F1 generation has all straight wings.
The F1 generation has all curly wings.
The F1 generation has straight wings and curly wings.
The F2 generation has all straight wings.
The F2 generation has straight wings and curly wings.
Answer:
B,C,G trust
Explanation:
edge 2020
Fruit flies when crossed produce the F1 generation with straight wings, and the F2 generation with straight and curly wings as the P generation had straight wings and curly wings. Thus, options B, C, and G are correct.
What is Mendel's cross?Mendel crossed plants to produce the F1 and F2 (filial) generations that involve the dominant and recessive alleles. The different phenotypic and genotypic ratios were predicted by the cross.
The crosses are attached to the image below.
The parent generation in fruit flies are purebred dominant and recessive = WW and ww
When they are crossed produces, F1 generation with offsprings with straight wings (Ww). Now the gametes of F1 are crossed to produce 16 offsprings with ratios as,
Phenotype ratio = 3 :1
Therefore, options B, C, and G are correct. Straight-winged flies will produce straight wings in F1 and both straight and curly wings in F2.
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- Why does a male bird displays his colorful feathers? (1 point)
O to increase the success rate of asexual reproduction
to increase the gestation period
to release gametes into his surroundings
O to attract a mate
Answer: To attract a Mate
Explanation: In competition, males use feather color to warn potential rivals that they occupy a piece of territory. When it's time to mate, male birds show off their plumage to attract a mate. In experiments, female birds prefer males with more fanciful feathers, or brighter colors.
Question:
If the soil is made up of large particles, what size will the air spaces be?
which of the following is water habitat??
a ocean
b river
c lake
d pound
Answer:
The answer is a(ocean)
Antibiotic resistance can vary within a population of bacteria. The diagram below represents the changes in a population of bacteria as a result of exposure to antibiotic over time.
Explain how this is an example of natural selection, and why we can use this as evidence that evolution occurs.
Answer:
The resistance that some bacterial populations develop to an antibiotic is an example of natural selection because the individuals with more resistance are those that survive, being an evidence of evolution since resistance can be inherited to the following generations.
Explanation:
The resistance to antibiotics that bacteria develop is the best example of how natural selection and evolution occurs, especially because of the fast and easy reproduction of these microorganisms.
In the example it can be seen that only the the most resistant bacterial populations to the antibiotic survive over time. Antibiotic resistance is due to mutations developed by bacteria that modify their structure and function so that they are not affected by an antimicrobial. According to natural selection, these mutations make resistance an inherited trait, and future generations will not be sensitive to the effect of the drug.
Why does natural selection occur? Only resistant individuals survive the effect of the antibiotic.
How do you explain evolution? Successive generations of bacteria have evolved, through mutations, to resist the effect of an antibiotic.
Thirty corn seedlings of equal size were randomly assigned to one of three treatment groups. At the beginning of the experiment, the plants in group I were dried and the mass was determined. The plants in group II were maintained in light for a week. The plants in group III were maintained in the dark for a week. All conditions, other than light, were the same for groups II and III. At the end of the week, the plants in groups II and III were dried and the mass was determined.
To explain the increase in mass of the light-grown plants, identify ONE inorganic source of new plant mass and connect it to the cellular process underlying the increase in mass.
To explain the decrease in mass of the dark-grown plants, identify the overall chemical reaction that is occurring in the plant cells and connect it to the cellular process underlying the decrease in mass.
Answer:
See the answer below
Explanation:
To explain the increase in the mass of the light-grown plant, one inorganic source of new plant mass would be carbon from carbon dioxide. The carbon becomes fixed into the plant through a process known as photosynthesis. During this process, carbon dioxide combines with water in the presence of light to produce carbohydrates, a major component of plant mass. Oxygen is produced as a by-product. The process can be summarized by the following equation;
[tex]6CO_2 + 6H_2O + light --> C_6H_1_2O_6 + 6O_2[/tex]
To explain the decrease in mass of the dark-grown plants, the loss of mass would be due to the breakdown of carbohydrates in the body of the plant through a process known as respiration. During this process, carbohydrate is broken down to release energy for the metabolism of the plant. Carbon dioxide and water are released as by-products and the entire process can be summarized by the equation below;
[tex]C_6H_1_2O_6 + 6O_2--> 6CO_2 + 6H_2O + ATP[/tex]
The inorganic source of new plant mass which is connected to the cellular process underlying the increase in mass is:
Carbon from carbon dioxideThe overall chemical reaction which is occurring in the plant cells and connected to the cellular process underlying the decrease in mass is:
Breakdown of carbohydratesAccording to the given question, we are asked to show how the group of plant cells which are used as part of an experiment actually increases in mass and how the decrease in mass of the dark grown plants comes about.
As a result of this, we can see that the inorganic source of new plant mass would be from carbon which is gotten from CO2 and feeds the plants with the help of chlorophyll with photosynthesis.
Furthermore, the decrease in mass of the dark grown plants would be as a result of the catalyst of the carbohydrates in the plant through respiration where carbon is the by product and energy is released.
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Just by looking at the guinea pig you would be able to tell if its genotype
were HH or Hh.
False
True
Answer:
False
Explanation:
I just did it on the Ed puzzle and out false and it was right. Good luck!
The genotype of an organism must therefore be homozygous recessive if it exhibits a recessive characteristic in its phenotype. Examples: If we come across a white guinea, its genotype should be “bb”.
What is the genotype of the guinea?A phenotype with juvenile hairlessness, weak skin, and age-dependent lung emphysema has been identified. The three genotypes may be distinguished, and the characteristic exhibits autosomal co-dominant inheritance.
The dominant allele H in guinea codes for the trait of having hair, whereas the allele H codes for the trait of not having any hair.
The guinea with the black coat is homozygous for the dominant allele if all of his or her progeny have black coats (BB). Heterozygous hybrids occur when guinea with black coats produce offspring that are half black coat color and half white coat color (Bb).
Therefore, it is false that the guinea you would be able to tell if its genotype were HH or Hh.
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How does cell theory help scientists to research more efficiently?
Answer:
Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Explanation:
The Cell Theory states: All living organisms are composed of cells. They may be unicellular or multicellular. The cell is the basic unit of life. Cells arise from pre-existing cells. (They are not derived from spontaneous generation.) The modern version of the Cell Theory includes the ideas that: Energy flow occurs within cells.
Answer:
Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Explanation:
Helpppppppp plssssssssss
Answer:
D
Explanation:
I studies cells last week. Plant cells have chloropasts and cell walls. Animal cells do not. Hope this helped :)
hey y'all I just really need help with this question so if y'all didn't mind and try to help me that would be greatHELP ME PLEASE I'LL MARK YOU THE BRAINEST!!!!!!!!
4. The monk seal is an endangered marine mammal. What variables do you think might have caused it to become endangered?
Answer:
They got eaten more than they can reproduce
Explanation:
Answer:
Changes in, or damage to monk seal habitat are contributing to the danger posed to the species. These habitat threats include coastal development and sea level rise, which are shrinking the critical habitat areas needed by monk seals for rest and pupping activity.
Explanation:
In which organelle is ATP produced in the cell?
Answer: Mitochondrion
Explanation:Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
Answer:
Mitochondrion is the answer to this question
7. On Galveston Island, an island 90 minutes away from Houston, ocean waves wash up onto the shore, typically picking up sand and depositing it further down the shoreline. Without human intervention, what would happen to the island?
Explanation:
they deleted the other one we were talking on wanna talk on this one now?!
How is carbon recycled through the processes of cellular respiration and photosynthesis?
A. the glucose made by plants is consumed by animals, while the carbon dioxide made by animals is taken in by plants
B. the glucose made by animals is consumed by plants, while the carbon dioxide made by plants is taken in by animals
C. the oxygen made by plants is taken in by animals
D. humans give water to their plants which is needed for photosynthesis to occur.
Answer:
a
Explanation:
Which best explains why plants and animals need nitrogen?
Answer: Nitrogen is important to all organisms because it forms the basis of many compounds necessary for life. However, living things cannot use N2 in its gaseous form in the atmosphere. Nitrogen gas found in air pockets within soil is converted into a form usable by plants through a process called nitrogen fixation.All plants and animals need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. ... When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.
Explanation:
In the following list of infections, two of these are mentioned in the video clip that are caused by bacteria. Place a “B” by the two infections that are caused by bacteria. The other two infections are not mentioned in the video clip as they are not caused by bacteria. Place a “V’ by these as they are viruses and not bacteria.
_____ Common Cold
_____ Tooth Decay (resulting in root canal)
_____ Strep Throat
_____ Influenza (“flu”)
Answer:
Explanation:
V Common Cold
B Tooth Decay (resulting in root canal)
B Strep Throat
V Influenza (“flu”)
Strep throat is caused by streptococcus which is a bacteria. They are present but can grow in numbers due to other problems in the body.
Tooth decay is caused by bacteria and that is why we should avoid feeding them with sweets so they don't grow in numbers.
Influenza is a virus that causes the flu. We have a flu season each year and a vaccine against it.
The common cold is also caused by a virus and there are a few of them that cause the same kinds of symptoms.
What role does yeast play in sourdough?
Answer:
The yeasts cause the dough to rise by creating carbon dioxide bubbles, while the lactic acid bacteria provide the sour flavor (in the form of acetic acid and lactic acid) and preserve the bread by lowering its pH, which prevents the growth of food borne pathogens.
31. Which category of carbon-based molecules includes sugars and starches?
A. unsaturated fatty acids
B. phospholipids
C. proteins
D. carbohydrates
Answer: D. carbohydrates
Explanation:
Carbohydrates are molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches. Carbohydrates can be broken down to provide a source of usable chemical energy for cells.
The law of conservation of mass states that matter cannot be created nor
Destroyed
Rearranged
Transferred
Changed
Answer: A
Explanation:
Which of the following is considered a carbon sink?
the ocean
the Amazon rainforest
Titusville, PA
the desert
what's the difference between aerobic and anaerobic cellular respiration
Answer:
aerobic uses o2 and anaerobic doesn't
Explanation:
Which statement best explains why this process results in weathering?
Answer:
Water expands when freezes
(50 points) Which structures produce a fluid to protect the body in the first line of defense? Select four options.
A. hair
B. stomach
C. mouth
D. eyes
E. skin
Answer: The correct answer is skin,eyes, mouth, stomach.
Answer:
b,c,d,e
Explanation:
