Answer:
A
Explanation:
got it right on edge
During which phase of mitosis do centromeres, which are at the opposite ends of the cell, use spindle fibers to place the chromosomes in the proper place in the cell
A.)telophase
B.)anaphase
C.)prophase
D.)metaphase
Answer:
Metaphase
Explanation:
The metaphase is when chromosomes are lined up and each sister chromatid is attached to a spindle fiber, which will place all of the chromosomes in the proper place in the cell.
Answer:
D.) Metaphase i took the quiz
Explanation:
(Giving brainliest!!)
Explain why the sun appears to be the brightest star in the sky. Relate your explanation with an example, such as streetlights
Answer:
when you look a streetlight from far it will be some how not bright. the other stars are far from planet earth . but the sun is near
Explanation:
Based on the similarities, what defines an ecosystem?
Answer:
An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.
Explanation:
Help me? This is so hard
Answer:
its c
Explanation:
component of the cell membrane is a Lipid for sure and thats the only answer choice with lipid
Answer:
i belive its C
Explanation:
The others dont make sense to me to fit the answer :)
5 Which answer best describes how
the particles that make up a liquid
move?
A vibrate in place
B tightly packed
C flow past each other
D move freely in all directions
In a plant species, the allele for dark green leaves (D) is dominant over the allele for light green leaves (d). A plant with Genotype (Dd) is crossed with a plant with genotype (did). What percentage of the offspring are expected to be hybrid for the leaf color trait. A 0% B 25%. C.50%. D 75%
The percentage of the offspring that is expected to be hybrid for the leaf color trait is 50%. The correct option is C.
What are alleles?The trait is caused by a pair of two alleles on the chromosome, and there are two possible outcomes. The dominant allele, which is typically written in capital letters and will control the organism's phenotype even in the presence of the other allele, is the one that has the ability to silence the other allele.
It is used in biology to refer to inherited traits that do not manifest in the phenotype of the individual who possesses them but may do so in their offspring.
Recessive alleles, which are only expressed when they are homozygous, are this other type of allele. Both heterozygous and homozygous genotypes exhibit the dominant allele.
Dd is crossed by dd.
100 / 2 = 50%.
Therefore, the correct option is C.
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Did humans and dinosaurs coexist ? Explain your response
Answer:
no
Explanation:
Humans werent around back then
Cells use a molecule called (DNA / RNA / ATP / CMP) to store and release energy like a battery. The energy is stored in chemical bonds between (nucleotide / oxygen / phosphate / ribose) groups of the molecule, and the energy is released when the chemical bonds are broken.
Answer:
Cells use a molecule called ATP to store and release energy like a battery. The energy is stored in chemical bonds between phosphate groups of the molecule, and the energy is released when the chemical bonds are broken.
Explanation:
The Adenosine Triphosphate (ATP) is a molecule made of adenine, ribose, and three phosphate groups, which are the ones that store the energy in its bounds. The ATP is the molecule that provides the energy to the different processes that happen in a cell. The molecule is made from the glycogen, fats, and carbohydrates that the body has absorbed in the intestines. When the body needs energy, the ATP loses one or two phosphates, becoming ADP and AMP. When the phosphorylation happens, which is the loss of phosphate, the energy is released.
A Labradoodle is created by scientist to be hypoallergenic but still look like a labrador
Answer:
whoa there holy cow
Explanation:
SJJKAOKPMADJO*imnotanalien*NNKSNK
Answer: mine has curly hair that looks like a poodle but face of a Labrador
Explanation:
In an experiment, there are two groups. Which group is not changed in any way?
Answer:
the control
Explanation:
In silkworms,yellow cocoon (B) is dominat over white cocoon(b). If the mom is BB and the dad is bb, what are the chances they have offspring with yellow cocoons?
Answer:
100 %
Explanation:
Dominance is a genetic phenomenon where a gene variant or allele masks the effects of another allele (of the same gene) in heterozygous individuals. This last gene variant is referred to as the recessive allele. In this case, the silkworm mother can produce only one type of gamete carrying the dominant gene (B) form, while the silkworm father can produce only one type of gamete carrying the recessive gene (b) form. In consequence, from this cross, all offspring (100 %) will be heterozygous (Bb) and therefore they will express the dominant trait (i.e., yellow cocoon).
Which one do I choose
Answer:
C
Explanation:
What are the kingdoms of life that scientists use to classify organisms?
A. Bacteria, Protista, Fungi, Plantae, Animalia, Phylum
B. Archaebacteria, Phylum, Family, Plantae, Animalia, Eubacteria
C. Eubacteria, Archaebacteria, Protista, Fungi, Phylum, Species
D. Eubacteria, Archaebacteria, Protista, Fungi, Plantae, Animalia
Answer:A
Explanation:
Organisms are classify on the basis of kingdoms Bacteria, Protista, Fungi, Plantae, Animalia, Phylum. Therefore, option (A) is correct.
How do we classify organisms?Organisms can be classified according to any number of criteria, including overall similarities, colors, ecological functions, etc. However, it is generally agreed that the most useful way for scientists to organize biological diversity is to group organisms according to shared evolutionary history.
It is divided into phyla or divisions, which are further subdivided into classes. Further divisions include order, family, genus and species, in that order. Thus, species is the basic unit of classification.
Organisms are usually grouped together based on their unique characteristics. The classification of an organism often provides useful information about its evolutionary history and which other organisms are related to it.
Learn more about classification of organisms:
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A group of two or more organs that work together to perform a specific function.
A. Cell
B. Tissue
C. Organ System
Which of the following statements best describes the state of DNA inside of a prokaryotic cell?
a
46 X-shaped chromosomes inside the cytoplasm
b
46 X-shaped chromosomes inside the nucleus
c
a single circular chromosome in the cytoplasm
d
a single circular chromosome in the nucleus
Answer:
C.
Explanation:
It's a single strand of circular DNA found in the central area of the cell, which is not surrounded by a nuclear membrane.
characteristics of a respiratory system
Answer:
they allow you to breathe, they exchange gases in bloodstream and body tissues, and they allow you to smell.
Answer:
Movement of an oxygen-containing medium so it contacts a moist membrane overlying blood vessels.
Diffusion of oxygen from the medium into the blood.
Transport of oxygen to the tissues and cells of the body.
Diffusion of oxygen from the blood into cells.
What needs to happen for a species to form
Answer:
New species form when individuals from diverging populations no longer recognize one another as potential mates, or opportunities for mating become limited by differences in habitat use or reproductive schedules.
Explanation:
When we speak of life possibly outside of Earth, we use the term ______
Answer:
Extraterrestrial.
Explanation:
It means of or from outside the earth or its atmosphere.
Answer:
we use the term extraterrestrial life
Explanation: extraterrestrial life is hypothetical life which may occur outside of earth and which did not originate on earth.
The cell membrane is a responsible for maintaining ___, a stable internal environment
Answer: Homeostasis is the cell membrane is a responsible for maintaining a stable internal environment
Use the following questions to write your conclusion to your lab report.
What did you learn from doing this lab? (Did the volcano have an effect on the ability of a predator to catch their prey? What might this mean for future generations? Include numbers from your data tables to show these changes.)
How could you make the lab better?
Answer:
WHat??
Explanation:
Which set of atoms can be found in ALL carbon-based molecule?
Answer:
All organisms are made of four types of carbon-based molecules: carbohydrates, lipids, proteins, and nucleic acids. These molecules have different structures and functions, but all are formed around carbon chains and rings.
Carbon-based molecules have three fundamental structures—straight chains, branched chains, and rings.
FILL IN THE BLANK!!!
genotype is the____pair of alleles (TT)____of an organism. And phenotype is the____apperence__of an organism
Answer:
THIS IS IT
Explanation:
The genetic makeup of an organism (ex: TT). Phenotype, The physical ... from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype. ... A Punnett square can be used to predict genotype and phenotypes of offspring from genetic crosses
What is the role of microfilaments in cell division?
Answer:
to help divide the cell during mitosis/ aid the process of cytokinesis
Explanation:
Answer:
microfilaments are made up of proteins including actin and myosin
these proteins help "pinch off" the two daughter cells during cell division during the final stages, a microfilament ring forms and contracts to separate the new cells during cytokinesis.
hope this helped :D
Which of the following is an example of a monomer and a monosaccharide:
A maltose
B. galactose
C. glycine
D. sucrose
Answer:
B. galactose
Explanation:
Galactose is a monosaccharide and is fairly abundant in a human diet
50 points HELP!!
What would be the correct complimentary DNA strand given the following DNA strand.
DNA: ATACGAAAT (Type as one word - no spaces)
Using the same strand of DNA, what would be the correct sequence for an RNA strand? (Type as one word - no spaces)
Answer:
TATGCTTTA for question 1.
For RNA following the original strand it would be UAUGCUUUA
Explanation:
Replace A with T(vice versa), and C with G(vice versa)
But for the RNA, A bonds with U instead of T. So it would be the same as the complimentary DNA, just with U instead of T
Replicate the following DNA sequence: TCT *
Replicate the following DNA sequence: GGG *
Replicate the following DNA sequence: GGA*
Voir
Hint:
A goes with T
T goes with A
C with G
G with C
summarize the future use of dna technology here in 20 words or more
Answer:
DNA testing has gone mainstream. The cost of DNA sequencing has reduced faster than Moore's Law. With an estimated cost of $100 in the foreseeable future, DNA sequencing becomes more accessible and opens up new use cases, such as wider adoption of population sequencing
Explanation:
how do plants grow helppp
Answer:
During photosynthesis, plants take the water from the soil, and the carbon dioxide from the air, and they make sugars out of it. When plants have the right balance of water, air, sunlight and nutrients, their cells grow and divide, and the whole plant gets bigger and bigger. And that's how plants grow.
Explanation:
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SARS-CoV-2 is a respiratory virus. What makes a respiratory virus more difficult to contain than a pathogen that is spread through contaminated food, for example?
Answer:
a respiratory virus is usually air borne. while contaminated food can only harm you if ingested. with SARS, if you breath in contaminated air, its a lot easier to get it.
Explanation:
In the laboratory, yeast cells are usually grown at a temperature of 25oC. A scientist wanted to determine if yeast cells would reproduce faster or slower when the temperature was dropped to 15oC. The same number of yeast cells were placed in the same medium with the same amount of nutrients. One sample was kept at 25oC and the other one was kept at 15oC. The number of yeast cells was counted every hour for an eighteen hour period.
Answer:
This question is incomplete, however, it is asking to identify the following variables:
Independent variable: Temperature
Dependent variable: Number of yeast cells
Constants: same amount of nutrients, same number of yeast cells, same medium
Explanation:
- Independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable effect. In this experiment, the TEMPERATURE at which the yeast are kept is the independent variable.
- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured by the experimenter in the experiment. In this case, The NUMBER OF YEAST CELLS was counted, hence, it is the dependent variable.
- Constants are variables that are kept unchanged or same for all groups by the experimenter in order not to influence the experiment's outcome. In this case, the CONSTANTS are: same amount of nutrients, same number of yeast cells, same medium etc.
