The statement that is true is as follows: the density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink (option C).
What is density?Density is the measure of the mass of matter contained by a unit volume. The density of a liquid substance is a determinant of whether the substance will float or sink in water.
Water is a liquid substance with a density of 1 gram per millilitres (1 g/mL). This suggests that any substance with greater density than that of water will sink while any substance with lesser density than water will float.
Density is a measure of how heavy something is compared to its size, hence, if an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
Therefore, according to this question, objects with a relative density greater than 1 gram per milliliter will sink.
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Complete the statement below using the drop-down menus.
It is believed mitochondria evolved from
,
while chloroplasts evolved from
Mitochondria evolved from aerobic bacteria while chloroplasts evolved from cyanobacteria.
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. A eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion.
Chloroplast evolutionarily derives from a primitive cyanobacteria that was engulfed by non-photosynthetic cells and, progressively, after losing most of its DNA, became the actual chloroplast that retains only a fraction of the original cyanobacterial genes. Chloroplasts of plants and algae are currently believed to originate from a cyanobacterial endosymbiont.
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What is the defining characteristics of monotreme mammals?A. They carry highly immature young in a pouchB. They develop a placenta during pregnancyC. They lay eggsD. They lactate (produce milk)
The best option would be C. They lay eggs
HELP 100 POINTS
Complete the following sentences:
Cellular respiration uses one glucose molecule to produce energy in the form of _____. Approximately _____ of this energy is converted into thermal energy.
(1 point)
Responses
a). 32 ATPs; 56%
b). 36 ATPs; 64%
c). 48 ATPs; 68%
d). 4 ATPs; 30%
Answer:
the answer is a
Explanation:
Cellular respiration produces 30-32 ATPs from one glucose molecule.
I hope this helps!!
HELP PLEASEEEEE!!!!!!
The complete chart indicating the number of chromosomes after meiosis, in body cells, in gametes and after mitosis are indicated in the given image.
Meiosis is the process of cell division in which the number of chromosomes are reduced to half. This is the reason why it is also called the reductional division. The process occurs in two phases: Meiosis I and Meiosis II. Meiosis I is the phase where actual reduction takes place.
Mitosis is the process of cell division where the daughter cells are identical to the parent cell. Here, the number of chromosomes remain the same and hence is called equational division.
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In a respiration experiment we are measuring the rate alcoholic Fermentation in yeast by measuring the amount of CO2 produced Please assist with following questions
Answer and explanation:
1. sources of error- in the experiment, the amount of carbon dioxide released by east is monitored, a source of error could be the carbon dioxide present in the atmosphere which would interfere with the results.
2. baking recipes add sugars and molasses to provide carbohydrates for the yeast. this acts as a source of energy for the fermentation process.
3. the respiration of yeast could be monitored by measured the amount of sugar used or by measuring the amount of ethanol produced in the respiration process
4. high concentrations of sugar my inhibit yeast activity most likely because of the high osmotic concentration which prevents yeast from getting enough water for growth. as the osmotic concentration increases a yeast cell will reach a pont where water moves out of the cell.
9. As the temperature increases, the chemical reaction
A. Speeds up
B. Slows down
C. Stays the same
Answer: A. Speeds up
Explanation: Increasing the temperature increases the speed of the reactant molecules.
Water molecules moves out of a red blood cell and its shrivels is an example of.
A Protein Channel
B Simple Diffusion
C Facilitated Diffusion
D Osmosis
Answer: D Osmosis
Explanation: Water moves into and out of cells by osmosis
A beavers build a dam behind a dam water forms a pond What effect can this have on the organisms living in the ecosystem
Beavers build dams that build wetlands which will result to flooding. Attraction of insects is also an outcome because of the effect of flooding that will kill tress and build impediments. Other organisms will now live in the area because homes will be provided by such act. Beavers actions will increase biodiversity.
Answer - Option A
Which gas is transported by the circulatory system in humans and is USED BY cells during respiration to release energy stored in food? *A Carbon DioxideB NitrogenC HydrogenD Oxygen
In order to answer this question, we must remember a bit of cellular metabolism, when mitochondria carry out the process of cellular respiration we can see that in the electron transport chain the final acceptor of electrons is oxygen. Therefore the correct answer for the question is option D oxygen.
4 things yk about matter (in science) WILL GIVE BRANILIEST!!
Which of the following is not a means of locomotion in protists?stigmaflagellaciliapseudopod
Between the options the only one that is not a mean of locomotion in protists is the stigma, that is a plant structure and not a locomotion strategy . All the others are locomotion strategy for protists.
This passage describes the flower position trait in pea plants:Flowers can grow in different positions on a pea plant's stem. Axial flowers arein the middle of the plant's stem. Terminal flowers are at the tip of the stem.In a group of pea plants, some individuals have axial flowers and others have terminalflowers. In this group, the gene for the flower position trait has two alleles. The allele F is foraxial flowers, and the allele f is for terminal flowers.A certain pea plant from this group has axial flowers. This plant has one allele for axialflowers and one allele for terminal flowers.Based on this information, what is this pea plant's genotype for the flower position gene?axial flowersFfffterminal flowers
Axial flowers are in the middle of the plant's stem.
Terminal flowers are at the tip of the plant's stem.
The alleles that code for the trait "position of the flower" are F: axial flowers, and, f: terminal flowers.
A pea plant has axial flowers (Phenotype of the plant)
You know that it has one allele for axial flowers, F, and one allele for terminal flowers, f.
→ The genotype of the plant is then Ff (heterozygous)
Answer:
Yes
Explanation:
Which state of matter does this model represent?
ᴡʜᴀᴛ ɪs ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs??? [tex] \\ [/tex]
Answer: The process by which green plants and some other organisms use sunlight to synthesize from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
You are examining a patient who has been in an accident. You test their motor skills and find that they can move their limbs but cannot write with a pencil and stumble often when walking. You conclude that they have damage to the part of the brain that governs fine muscle control. What area is this?A. Brain stemB. PituitaryC. Cerebral cortexD. Cerebellum
The answer is the letter D. Cerebellum- responsible for fine muscle control.
*Cerebellum is responsible for maintaining balance and posture.
What analogy is used to describe how cell replication is regulated?
Driving a car might be one common analogy used to describe how cell replication is regulated.
What is the cell replication cycle?The cell replication cycle is a sharply regulated process that resembles driving a car because there are many steps that can be stopped to continue with the process.
In the case of the cell cycle, there are major points of control that regulate the progression through this process which involve the Growth 1 phase (G1), the synthesis S phase and the Growth 2 (G2) phase. All these phases in the cell cycle are regulated by the presence of cyclin proteins that are phosphorylated by cyclin-dependent kinases in order to continue with the cell cycle.
Therefore, with this data, we can see that the cell cycle is a sharply regulated process that has several points of control where the cell recognizes that all is fine to continue with the process.
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Which of the following processes is not associated with sexual reproduction?OOOOmeiosisfertilizationbinary fissionrecombination
Of the following processes the one that is not associated with sexual reproduction is the binary fission, that is a asexual reproduction by a separation of an organism of the body into two new bodies.
Explain what is meant by “dimorphic” and how this term applies to pathogenic fungi.
Dimorphism is the occurence of the existence of two forms, in the case of sexual dimorphism the existence of two distinct types of a individual. The dimorphism among fungi is the capacity to convert between two specific morphological forms, like hyphae and yeast, the Ascomycota phylum have dimorphic organism. The dimorphism in fungi can happen depending of environmental condictions or situations, like an yeast in cold temperatures turning into mold.
Heartburn occurs when stomach acid escapes the stomach and burns the tissues of the esophagus. Baking soda is sometimes
used as an antacid. How does baking soda help relieve symptoms of heartburn?
Baking soda is used as an antacid during heartburn because: (a) The baking soda is serving as a buffer to take up excess H+ ions from stomach acid.
Antacid is a medication used to neutralize to excessive acid inside the stomach and also cure heartburn as well as indigestion. They can come as liquids or as tablets. The composition of antacids must include aluminum hydroxide. magnesium carbonate, etc.
Baking soda is a bicarbonate with the chemical formula NaHCO₃. It is a very versatile compound used in a variety of ways like in cooking, as a odor repellant, for cleaning and also as an antacid.
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I need help with this practice problem solving In your own words answer my pic below all
Answer:
Kudzu was intentionally introduced to North America by the Soil Erosion Service and Civilian Conservation Corps in the 1930s for the purpose of controlling soil erosion in the American Southeast.
What surface can only vacuum metal deposition be used on?
Porous surfaces
Non-porous surfaces
Metals
Fabrics
The surface that only vacuum metal deposition can be used on is option B: Non-porous surfaces.
What are Nonporous materials?Nonporous materials are substances that do not permit the passage of liquid or air. Nonporous materials are those that are not porous, such as glass, plastic, metal, and varnished wood.
Note that Vacuum lifting nonporous materials is much simpler than vacuum lifting porous surfaces, as the definition suggests. A proven method for creating latent fingerprints on non-porous surfaces is vacuum metal deposition (VMD).
Therefore, A variety of displays, such as flexible plastic packaging, plastic bottles, glass, and others, respond best to vacuum metal deposition (VMD).
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Which type of mutation speaks produces a stop condon?
Answer:
nonsense mutation
Explanation:
Looking at your data, which color light was needed the most by chlorophyll during photosynthesis? (Hint: which color light was absorbed the most in your experiment?) Question 9 options:redbluegreen
Chlorophyl absorbs the light at both endpoints of the visual expectrum, which means that ir absorbs the light of the blue and red wavelenghts.
The red wavelength is absorved on a higher rate than the blue wavelength.
Need help with this question will global warming have catastrophic effects?
Global warming is predicted to produce an increase in extreme temperatures and it is caused mainly by an increase in CO2 levels. The increasing temperatures are likely to cause a modification in air circulation patterns and increase evaporation, among others. These have consequences over climate and produce an increment over frequency and magnitude of extreme climatological events (like hurricanes). Also, global warming leaves no place for adaptation (as it is fast compared to biological adaptation), so many species are likely to go extinct, with important ecological effects. I consider these to be catastrophic effects.
If all planets were the same distance from the sun, which would have the largest gravitational force between itself and the sun? Why?
Answer: Jupiter
Explanation:
Jupiter has the greatest mass when compared with the other planets in the solar system. According to the attached gravity formula and considering the only variable is the mass of the planet in this example then it has the greatest gravitational force.
What is the name of the southern part of South America?
Answer:
I think Andes
Which allele will be expressed when both a dominant and recessive allele arepresent in an organism?A. the two alleles will mixB. dominant onlyC. recessive only
The answer is the letter B. dominant only
*Dominant allele is expressed exclusively in heterozygous organisms (presence of dominant and recessive allele).
*Recessive traits are expressed when the organism has a homozygous recessive allele.
6. What is the monomer (building block) of nucleic acids such as DNA and RNA a.Nucleotidesb.Amino Acidsc.Glycerol head and fatty acid tailsd.Monosaccharide
We have to consider that a monomer is, just like the question's statement tells us, the building block of a greater molecule. These basal units in the nucleic acids (DNA and RNA) are known as nucleotides, while are called amino acids in proteins.
Cutting is the easy technology to produce large number of vegetative seedlings at a time . How explain
Many plants, especially horticultural and garden varieties, are propagated through cuttings; by the use of new techniques, many other plants formerly not susceptible to propagation through cuttings have more successfully reproduced. The plants that develop from cuttings are clones.
Explanation:The cutting method is a technique of vegetative reproduction in plants. In this method, a branch of the stem is cut out from the plant and buried in the soil. New leaves arise from the nodes in the stem and the new roots also develop giving rise to a whole new plant. Example- rose, sugarcane. Cuttings can be made from any part of the plant. Most frequently, however, either a stem or leaf is used. A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, stem cutting only needs to form new roots to be a complete, independent plant. A cutting is a section of plants such as a modified stem, leaf, or root used for vegetative propagation that forms either adventitious shoots, adventitious roots (stem and single node cuttings), or both (root and leaf cuttings). These are long pieces of roots which are used to artificially propagate new plants. For example, lemon, orange, blackberry, boysenberry, raspberry, etc. Cutting gives young children independent movements of each finger. Cutting with scissors works on the separation of two sides of the hand and strengthens hand muscles. Bilateral coordination is also addressed when they have to hold the scissors in one hand and the paper in the other. The four main types of stem cuttings are herbaceous, softwood, semi-hardwood, and hardwood. These terms reflect the growth stage of the stock plant, which is one of the most important factors influencing whether or not cuttings will root. You will get greater uniformity (clones) of your plants. The plant will reach maturity at an earlier age. When a recipe specifies how to cut an ingredient, it is important to follow the instructions because using the proper cutting technique will affect the dishes cooking time and will help ensure the food cooks more evenly and maximizes flavour.
Cutting is the easy technology to produce large number of vegetative seedlings at a time because the plants which are not susceptible can be easily propagated through this.
What is Vegetative propagation?
Many plants, especially those of horticultural and garden varieties, are propagated through cuttings. By the use of new techniques, many of the other plants formerly those which are not susceptible to the propagation of plants through cuttings which have more successfully reproduced. The plants that develop from cuttings are clones.
Most of the plant cuttings include stem pieces, and these have no root system of their own, and are therefore likely to die from dehydration of plant parts if the proper conditions are not met. Plant cuttings require a moist medium, which, however, cannot be too wet as this can rot the plant cutting. A number of media which are used in this process include however are not limited to soil, perlite, expanded clay pellets, and even water if given the right conditions. Most of the succulent cuttings can be left in open air until the cut surface dries, which may improve the formation of root when the cutting is later planted.
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Of the following, which may be classified as supportive connective tissue?
a. bone
b. adipose tissue
c. dense regular connective tissue
d. dense irregular connective tissue
Answer: A. Bone tissue.
Explanation: Trust me.
