(01.01 MC)
What is the difference between a hypothesis and a theory? (2 points)
Select one:
a. A hypothesis is a testable statement, and a theory is well-supported explanation.
b. A hypothesis is a theory that has been proven.
c. A hypothesis is a law of nature, and a theory is always true.
d. A hypothesis is an observation that can turn into a theory.
Answer:
im almost positive its a
Explanation:
its the only one that makes sense when comparing to the other answers :)
Answer:
A
Explanation:
A hypothesis is what is tested during an experiment while a theory is a phenomenon or outcome that is supported by a significant amount of data and evidence.
Blood, muscle, and bone cells are examples of _____.
plant cells
specialized cells
organs
tissues
Answer:
specialized cells
Explanation:
All of those cells are types of specialized cells. They are cell specifically designed for a specific job.
Which of the following anatomical directions are opposites?
A. Anterior and posterior
B. Posterior and superior
C. Anterior and superior
D. Posterior and inferior
The anatomical directions that are opposites of each other are: Option D. Posterior and inferior . Anatomical directions refer to a standard frame of reference used to describe the locations and orientation of body structures.
The following anatomical directions are opposites of each other:Anterior (front) and posterior (back): These are opposites and refer to the front and back sides of the body. The front side of the body is the anterior side, whereas the back side of the body is the posterior side.
Superior (upper) and inferior (lower): These are opposites and refer to the upper and lower portions of the body. The upper side of the body is the superior side, whereas the lower side of the body is the inferior side. Medial (towards the midline) and lateral (away from the midline):
These are opposites and refer to the sides of the body. The side of the body that is closer to the midline is the medial side, whereas the side of the body that is further away from the midline is the lateral side. Proximal (closer to the trunk) and distal (further away from the trunk):
These are opposites and refer to the position of limbs or body parts relative to the trunk. The part of the limb or body that is closer to the trunk is the proximal part, whereas the part of the limb or body that is further away from the trunk is the distal part. Option D is correct.
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If a woman of blood type A has a child of blood type O, which of the following could be the father's blood type?
A. blood type A, AB, or O, but not B
B. blood type O, only
C. blood type A or B, only
D. blood type A, B, or O, but not AB
Answer:
A blood type A
Explanation:
Why do you think the temperature does not change while a liquid boils even
though heat is being added to the liquid?
Answer:
I'm not really sure
Explanation:
Which pieces of information are typically seen on a newspaper weather map?
isobars
isotherms
symbols for fronts
symbols for long-range predictions
Answer:
c
Explanation:
symbols for fronts
The pieces of information that are typically seen on a newspaper weather map are: symbols for fronts.
What is a weather map?
A weather map can be defined as a type of publication that is typically used to provide information about the average atmospheric condition of a geographical region over a specific period of time.
In Meteorology, symbols for fronts refer to the pieces of information that are typically seen on a newspaper weather map, which provide information on air masses.
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Importance of mitosis, two reasons and 300 words.
Answer: Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
1. Development and growth
After meiosis has produced a gamete, and this has fused with another gamete to form an embryo, the embryo grows using mitosis. This growth continues throughout an organism’s life, in plants, animals, and fungi. In this way, the original chromosomal set is preserved.
2. Cell replacement
This occurs when the original cell is damaged or wounded. New cells are created to replace those that were damaged. Examples of this are the healing of a cut or a broken bone. When old cells die, new ones replace them to ensure continuing functionality.
3. Asexual reproduction
Single-celled organisms and certain multicellular organisms use mitosis for asexual reproduction. This includes reproduction by fragmentation, as in the case of planaria, and reproduction by budding, as in the case of sea anemones. Many plants reproduce using mitosis.
First, we need to understand what meiosis is. Meiosis is the replication of cells that results in each daughter nucleus containing half of the parent cell’s chromosomes. Meiosis is used primarily for the production of gametes, which are incorporated in sexual reproduction. Thus, the main difference between mitosis and meiosis is that mitosis produces somatic (body) cells, which can go on to become part of any bodily tissue, whereas meiosis only produces germ (sex) cells. Organisms which reproduce asexually cannot undergo meiosis, whereas all eukaryotic organisms undergo mitosis. Mitosis and meiosis are similar in that both can only occur in eukaryotic cells. This is because prokaryotic cells do not contain a nucleus within which to begin the processes of mitosis and meiosis. Instead, prokaryotes replicate themselves using binary fission. Both mitosis and meiosis begin with DNA replication in the parent cell to create four sets of chromosomes: in mitosis, these sets are split to form two diploid daughter cells, while in meiosis, these sets are split to form four haploid daughter cells. This is because cells undergo only one division in mitosis, whereas they undergo two divisions in meiosis.
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!! :D
A change in which of the following is least likely to impact primary productivity?
A. Nitrate
B. Dissolved oxygen levels
C. Dissolved carbon dioxide levels
D. Phosphate
Answer:
its C just did the test pennfoster :)
Which of the following is a function of the cell membrane of a cell?
Answer: iM guessing you meant something like this
C. The transport of molecules into and out of the cell through osmosis and diffusion. D
Explanation:
Which of the following is a function of the cell membrane of a cell? A. The production of energy from food molecules using cellular respiration. B. The production of genetic material through DNA transcription. C. The transport of molecules into and out of the cell through osmosis and diffusion. D. The transport of genetic material within the cytoplasm of the cell.
20. Individuals with more than 5 fingers on each hand have a disorder
called "polydactyly." Shaded individuals on this pedigree have polydactyly.
Which is true?
Polydactyly is autosomal recessive
Polydactyly is autosomal dominant
O Polydactyly is sex-linked recessive
Polydactyly is caused by an extra chromosome
Could someone explation for me ?
I was ask yesterday but wrong answer !!
Which of the following statements is NOT part of the cell theory?
a. New cells come only from existing cells.
b. The basic unit of structure and function in an organism are cells
c. All cells are identical
d. All living things are made up of one or more cells
Answer:
c) All cells are identical
Answer:
c. All cells are identical
Explanation:
The three statements are all living things are composed of cells, that cells are the basic units of structure and function in living things, and that new cells are produced from existing cells.
And not all cells are identical as there are different types of cells in the human body and there are different organisms.
2. Which blood type would you have if antibodies A and B were made during your first year of life?
Answer: the possible possibilities are 3 if u have an A and B type of antibodies.
Explanation:
it can be -- AO or AB or BO
plus factor will depend upon enzyme presence.
If a person is having both anti-A and anti-B antibodies in blood then the possible blood group of that individual can be O. However, Rh factor cannot be determined by this information.
What is Blood Group?Blood grouping is the system of classification of blood on the basis of antibodies and antigens in blood which are inherited substances present on the surface of the red blood cells.
Blood groups are classified into four types. These are A, B, AB and O. Blood group A has antigens A on the RBCs with anti-B antibodies present in the plasma. Blood group B has B antigens on RBCs with anti-A antibodies in the plasma. Blood group O has no antigens on the membrane of RBCs and antibodies of both types anti-A and anti-B antibodies in the plasma. Blood group AB has both A and B antigens, but no antibodies in the plasma.
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3
Select the correct answer.
Which equation represents the line that is parallel to y = 3 and passes through (-2,-8)?
A.
x = -2
B.
x = 3
C.
y = -8
D.
y = 3x − 2
Reset Next
Post Test: Special Linear Relationships
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Answer:
A
Explanation:
Answer:
C. -8
Explanation:
One challenge to understanding Earth's geologic history is
Most ancient ocean plates have been destroyed by subduction
Plate tectonics causes uplifting
Continents collide and destroy fossil evidence
There are few continental plates older than 200 million years old
Answer:
Continents collide and destroy fossil evidence
Explanation:
One main challenge in understanding earth's geologic history is that continents collide and destroy fossil evidence.
Fossils are the preserved remains of dead organisms found in rocks. They are very good and useful indicators of the life of an organism. By studying the progression of their evolution, a vivid understanding of the earth's geologic history can be constructed.3. In Lab, Section II, Exercise 3 if dad and mom (first generation) have two children (second generation), how many descendants will there be in the following six generations if each child has the same number of children as their parents (22)? Complete the table below, then construct a line graph. Sign, date and prepare an image of your graph and include it with this lab report.
Answer:
Be happy
Explanation:
Its okay to fail
If the resulting F1 rabbits are crossed, what proportion of the F2 offspring will have the Himalayan phenotype and what causes the hypomorphic ch allele to be unstable and result in the distinctive fur pattern
Answer:
3/4; temperature
Explanation:
When animal are crossed to produce a different hybrid having the features or characteristics of both the two crossed animal, a hybrid offspring is produced. The hybrid offspring have all the qualities and characteristics of the parents.
When a parental cross is done between rabbit with albino rabbit, having genotype cc and with Himalayan phenotype that have a genotype of chch, it results in the production of F1 rabbits having all the Himalayan phenotype.
And if the F1 rabbits are now crossed, three-fourth of the F2 offspring have the Himalayan phenotype. The distinctive fur pattern and the unstable allele of hypomorphic ch is caused by the temperature of the surrounding.
 If a translation of (x, y) → (x + 6, y – 10) is applied to figure ABCD, what are the coordinates of D'? (–5, –2) (1, –12) (4, –15) (–9, –6)
Answer:1,-12
Explanation:
Answer:b
Explanation:
Read the information for transcription and then answer the question.
Protein Synthesis
Explain the process of transcription
Answer:
Protein synthesis is the process which synthesizes proteins by the information coded in the DNA molecule with the help of two distinct process takes place in order namely transcription and translation.
Transcription is the first process of the central dogma or the protein synthesis that produces mRNA molecule that carries all the information stored in the DNA molecule out of the nucleus (in eukaryotes only) to the ribosome where the second process Translation takes place.
Untwists then unzips of DNA molecule is catalyzed by RNA polymerase result in the Hydrogen-bonds between the strands break .
Creates complementary base pairs with bases of the DNA strand with help of free RNA nucleotides
weak hydrogen bonds and sugar-phosphate bonds form between base pairs and RNA nucleotides respectively
mRNA strand is synthesized and peels off the DNA and transported or pass from the nucleus to cytoplasm
Answer:
Transcription converts
*DNA
*mRNA
*Nucleus
*Cell
in this order
Explanation:
How can you tell the difference between alternate and opposite leaf arrangements?
They are based on based whether the leaf pinnate or palmate venation.
They are based on based whether the leaf has one or two leaves at the node.
They are based on based whether the leaf has a smooth or toothed margin.
They are based on whether the leaf is simple or compound.
Answer:
They are based on based whether the leaf has one or two leaves at the node.
Explanation:
Answer: They are based on based whether the leaf has one or two leaves at the node.
Explanation: You can tell the difference between alternate and opposite leaf arrangements based on whether the leaf has one or two leaves at the node. Alternate leaf arrangement is when a single leaf is attached at one location on the stem, the node, in an alternating pattern. On the other hand, the opposite leaf arrangement is when two leaves are attached to the same node on opposite sides of the stem.
List which cell has the listed characteristics
1 Extensions
2 Matrix
3 No nucleus
4 Striated
5 Used in the immune system.
in unicellular organisms, what makes up the organism
Answer:
Unicellular organisms include bacteria, protists, and yeast.
Explanation:
Please, answer it correctly.
Hi, this is what I see when I open your document. Can you please try changing it, then I can probably help.
chromosome are made of
how many DNA molecules
Answer:
A chromosome is formed from a single, enormously long DNA molecule that contains a linear array of many genes. The human genome contains 3.2 × 10^9 DNA nucleotide pairs, divided between 22 different autosomes and 2 sex chromosomes.
Explanation:
HOPE THIS HELPS ;}
Answer:
two
Explanation:
each chromosome is made up of 2 dna molecules
4. Which is a factor that keeps Earth in orbit around
the Sun?
A. the gravitational pull of the Sun
B. the orbital path of the moon
C. the continuous motion of the universe
D. Earth's changing speed and direction
Answer: A. the gravitational pull of the Sun
The sun is providing a centripetal force pulling the earth inward toward the sun. At the same time, the inertia of the earth is making it want to move forward in a straight line. The two forces work together to create the net effect of the earth orbiting around the sun. Other planets, moons, asteroids, and celestial objects exert gravitational forces on the earth as well, but nowhere near the amount of what the sun does.
Which of the following is the proper order of the Linnaean system of classification starting at the most specific and moving up?
species, genus, family, order, class, kingdom, phylum
genus, species, order, family, class, phylum, kingdom
species, genus, family, order, class, phylum, kingdom
Species, genus, order, class, family, phylum, kingdom
Plant height, leaf shape, and flower color are all examples of what in plants
Answer:
inherited traits
Explanation:
The two most important chemicals are ___________ & ______________.
Answer:
Sulfuric acid
Explanation:
Sulfuric acid
Answer:
Sulfuric acid
Explanation:
the female reproductive and endocrine systems work interactively for which main purpose?
Answer: To control hormone levels to prepare the body for pregnancy
Hope this helps!! :)
Answer:
To control hormone levels to prepare the body for pregnancy
Explanation:
which answer is correct?
1)the effector
2)receptors
3)the spinal cord
4)the conscious part of the brain
5) neurones
Answer:
4
Explanation: