Answer:
The difference between a unicellular specimen and other multicellular organisms will be the NUMBER OF CELLS. See detailed explanation below.
Explanation:
Cells are the simplest and basic unit of life. Living organisms has been classified as unicellular or multicellular depending on the number of the cells that make them up. A unicellular organism is that which possess only one cell to carry out all its life functions. According to the question, the Paramecium is an example of unicellular organism.
On the other hand, a multicellular organism is made up of many cells that specializes to perform the different life functions of the organism. This means that a specific kind of cell carries out a specific life function, this is called Cell differentiation. Examples of multicellular organisms include plants, all eukaryotic fungi etc.
Therefore, Stella's unicellular specimen, which is the Paramecium, will be different from other multicellular organisms in the number of cells possessed by each of them. The unicellular specimen will possess just a single cell while the multicellular organisms will possess more than one cell as viewed by the microscope.
11. Which of the following is not a cause of cell necrosis?
Infection
Blood clot
Injury
Perfusion
Infection, blood clot, and injury all are the causes of cell necrosis except perfusion. Thus, the correct option is D.
Cell Necrosis is the death of the cells which are present in the body tissues. While the dead body tissue can be removed, it cannot be brought back to the good health.
The necrotic tissue appears as white and friable cells, like the clumped cheese. Dead cells in the body disintegrate however are not completely digested by lysosomes, thus leaving granular particles. Microscopic examination of the dead cells show amorphous granular debris that is enclosed within a distinctive inflammatory border.
Cell Necrosis can occur due to different causes such as injury, infections or diseases. Lack of blood flow to body tissues and extreme environmental conditions.
Therefore, the correct option is D.
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All of the following are efforts to save a species close to extinction EXCEPT ? genetic preservation. fragmentation. captive-breeding programs. zoos and aquariums.
Answer:
fragmentation
Explanation:
What do you think of genetic engineering? Are GMO's good or bad?
With genetically engineering humans, should we be tampering with the human genome? Do you think humans can stick to a limit (only curing diseases) or do you think humans would begin engineering people?
When two different alleles are dominant and determine the phenotype, this is an example of what?
co-dominance
complete dominance
incomplete dominance
None of the above
Answer:
Complete Dominance
Explanation:
This is complete dominance because both of the alleles are dominant, and there are no recessive alleles :)
What additional evidence
do we have today that
supports Darwin's theory?
A. Cell theory
B. DNA and molecular evidence
C. Process of photosynthesis
D. Method of protein synthesis
Answer: The answer is A cell theory.
Explanation: For our cells to be as developed and complex as they are today a huge evolutional process was necessary. This process is explained in the cell theory
DNA and molecular evidences are the additional evidences to support Darwin's theory. The correct option is B.
What is Darwin's theory?According to Darwin's theory, all species of organisms emerge and develop through natural selection of slight, inherited variations that significantly raise the individual's capacity to compete, stay alive, and reproduce.
It is backed up by research from a wide range of scientific disciplines, as well as genetics, which shows that DNA from different species is similar.
Fossils, embryological studies, anatomical and morphological characteristics, and molecular biology are examples of evidence that support the theory of evolution by comparing DNA sequences.
Thus, the correct option is B.
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What is your hypothesis for the numbers of each phenotype after 32 fertilizations (HINT: Use a Punnett square to come up with the ratio and then determine how much of each if you have 32 individuals.)
Answer:
I need more clarification on what to use in the punnet square
Explanation:
Mendel’s pea plants had either purple or white flowers. This means that the plants can self-pollinate. have two recessive traits. have two alleles for the gene. have two copies of a gene from one parent.
Answer:
I think it's that they have two alleles for the gene
The statement that Mendel’s pea plants had either purple or white flowers means that the plants have two alleles for the gene.
MENDEL'S LAW:Gregor Mendel is regarded as the Father of genetics due to his immense contribution to knowledge of genetic inheritance.
According to Gregor Mendel, a gene consists of two alleles, which individually encode different phenotypes of a particular trait.
In this question involving flower color gene, two alleles coding for purple (P) and white color (p) are present in the gene.
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Which process produces human egg and sperm cells?
Answer:
Hey there! Your answer will be below.
Explanation:
The answer to your question is gametogenesis or meiosis ( which produces gametes....From meiosis it becomes or forms into gametes.)
So the answer should be gametogenesis/ meiosis....
Hope that helps!
By: xBrainly
Meiosis or gametogenesis is the process that produce human egg and sperm cell.
What is meiosis?Meiosis is a type of reproduction in which a parent cell divide into four daughter cells that are genetically different from the parent cell. The daughter cells have half number of chromosome of the parent cell.
This process produce the gametes which are the sperm cell and egg cell.
Therefore, Meiosis or gametogenesis is the process that produce human egg and sperm cell.
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A_____ Cell is one that has one copy of each chromosome
Answer: Haploid
Explanation:
A Haploid cell that has only one copy of each chromosome which can be paternally or maternally-derived
I hope this helped
In the carbon cycle, what form of carbon do producers take in from the atmosphere to preform photosynthesis?
A. Carbohydrates
B. CO2
C. Protein
D. Solid carbon
E. Water
Answer:
Option B
Explanation:
Producers take in carbon in the form of CO2 from atmosphere to perform photosynthesis clear from the photosynthesis reaction:
Water + CO2 => Food + Oxygen + Energy
During the transmission of signals across a neuromuscular junction, which of the following happens first?
A. Acetylcholine binds to a receptor protein on the motor end plate
B. The sodium and potassium ion gates on the motor end plates open
C. Synaptic vesicies release acetylcholine molecules
D. Synaptic vesicles move toward the axon terminals
Answer:
D. Synaptic vesicles move toward the axon terminals.
This happens at first
Note-taking can be an effective study strategy if you:
a record everything verbatim.
b. use a laptop to take notes.
c. take notes by hand.
d. take notes only on your second read-through.
Answer:
c. take notes by hand
Hope this helps.
What factor determines how much linoleic acid can twist and bend its shape?
A. The weight of the molecule
B. The number of carbon-hydrogen bonds
C. The length of the molecule
D. The number of carbon-carbon double bonds
When doctors hear the details of an autopsy and then learn of the deceased person's diagnosis, they often believe that they could
have predicted the diagnosis. This is an exullnple of the bias.
a. misconception
b. research
c. hindsight
d. commonsense
Answer:
c. hindsight
Explanation:
Hindsight bias is a term used in psychology to explain the tendency of people to overestimate their ability to have predicted an outcome that could not possibly have been predicted.
What is the effect of the inheritance of one trait on the inheritance of a second trait?” with a hypothesis. Remember that you can either assume that the two genes are independent or that they are linked. What results would you expect in either case?
Hypothesis:
Proteins are made from amino acids. An amino
acid has three parts that are joined to a central
carbon atom. Identify the three parts that create
an amino acid,
amino aroun
Answer:
A hydrogen atom, an amino group (NH₂), and a carboxyl group (COOH) make up an amino acid.
Explanation:
Hope this helps. :)
Wildlife experts may attempt to restore the population of an individual species ?
by changing the food web of the ecosystem.
by moving the species to a rain forest.
through captive breeding.
by introducing an exotic species into the population.
Answer:
C
Explanation:
through captive breeding. Once they are breed, they should be released
What is a biome i need help on this
Answer:
A biome is a large area with a unique climate. The plants and animals share common characteristics in the environment they live in.
Examples of biomes are tundra, forests, grasslands, and deserts.
Answer:
This is a community of plants and animals that have common behaviour for the place they live in.
Explanation:
They are found in a range of continents.
What are villi and what makes them suited for their function?
Answer:
Villi are finger-like projections.They increase the surface area of inner walls and helps alot in absorption of digested food.
Explanation:
What is the correct order of
evolution of the major types
of pants?
A. Non vascular, Gymnosperm,
Vascular seedless, Angiosperm
B. Vascular seedless, Non
vascular, Angiosperm,
Gymnosperm
C. Non vascular, Vascular
seedless, Gymnosperm,
Angiosperm
D. Angiosperm, Gymnosperm,
Vascular seedless, Non vascular
Answer:
The correct order of evolution is C- Non Vascular, Vascular seedless, Gymnosperms, Angiosperms.
Explanation:
The first plants to evolve were the non-vascular bryophytes like fungi and algae.
The next to evolve were vascular plants that supported a vascular tissue system but lacked seeds.
Gymnosperms are vascular plants that have seeds.
The seeds produced in the gymnosperms could undergo fertilization easily as the wind acted as pollen carrier.
The next to evolve were angiosperms or flowering plants.
Flowering plants have highly modified shoots that carry male as well as female gametes.
Identify characteristic of alcohol. a. It is a key ingredient in dietary supplements. b. It provides water but not calories. c. It enhances the repair of body tissues. d. It provides calories. e. It is an essential nutrient.
What does Saccharomyces cerevisiae (Baker’s yeast) need to survive?
Answer:
Food (Sugars)
Explanation:
S. cerevisiae feeds on sugars for energy, in the process producing carbon dioxide and alcohol (this is fermentation in a nutshell). The carbon dioxide bubbles get trapped in the dough, creating the lift that makes the dough rise. The alcohol, meanwhile, evaporates when baking, transforming into gas that also contributes to the rise of the bread. The alcohol, along with acids produced during the fermentation process, impart that wonderful flavor and aroma associated with yeast-leavened breads.
Which endocrine gland is indicated by the arrow?
pineal gland
adrenal gland
hypothalamus
ovary
A human body with endocrine glands are shown. The glands on the kidneys are indicated by the arrow.
Answer:
its the adrenal gland B on ENG 2022
Explanation:
The glands on the kidneys are indicated by the arrow, and the gland is called the adrenal gland which is present in the second option, and there are two adrenal glands on the two kidneys of the human body.
What is the importance of the adrenal glands in humans?The adrenal glands are two small glands located on top of the two kidneys that play an important role in the endocrine system because they produce hormones that help regulate a variety of important functions, such as metabolism, immune system function, and the stress response by releasing hormones like adrenaline, cortisol, and epinephrine, etc, while adrenaline, is released in response to stress or danger, it increases heart rate, blood pressure, and glucose levels, preparing the body for stress.
Hence, the glands on the kidneys are indicated by the arrow, and the gland is called the adrenal gland, which is present in the second option, and there are two adrenal glands on the two kidneys of the human body.
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3. Were you able to restore the land? Why or why not?
Answer:
yes yes I was
Explanation:
I invested with money for crops and bammo bingo land back!!!
Which statement describes a parasite?
• A parasite is beneficial to its host.
O Aparasite is harmed in its relationship with the host.
A parasite only benefits when the host is alive.
A parasite always kills its host and takes all the nutrients.
If the number of photosynthetic organisms on the earth decreased drastically, which would happen as a result? Less water would be available on the earth’s surface. Less solar energy would reach the earth’s atmosphere. More oxygen gas would be found in the atmosphere. More carbon dioxide gas would be found in the atmosphere.
Answer:
More carbon dioxide gas would be found in the atmosphere.
Explanation:
Photosynthetic organisms convert carbon dioxide in air to oxygen through photosynthesis, while other non-photosynthetic organisms only consume oxygen and release carbon dioxide through respiration, they do not undergo photosynthesis.
When the number of photosynthetic organisms on the earth decreased drastically, the carbon dioxide released from other non-photosynthetic organisms cannot be converted to oxygen, so carbon dioxide in air accumulates.
Please if anyone could answer this question? Will mark brainliest!!
Explain the process of gaseous exchange in the alveoli of the lungs.
Answer: Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Answer:
carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Explanation:
Where is our sun located in the Milky Way?
O at the tip of one of the spiral arms
O within one of the spiral arms
O at the exact center of the galactic nucleus
O in the galactic halo
Answer:
B is the answer
Explanation:
The sun is located within one of the spiral arms, the Orion Arm to be exact.
The sun's mass
is very small compared to other stars
is very small compared to Earth
creates a very powerful gravitational force
o pulls the planets in orbit around Earth
Answer:
his answer is wrong it is "creates a very powerful gravitational force"
Explanation:
if anyone needs it in the future <3
What is the benefit of using a shortcut in a reaction between two chemicals? A shortcut would ensure a safer reaction. A shortcut may provide a faster reaction. A reaction with a shortcut would yield more chemical output. A reaction with a shortcut would require less chemical input.
Answer:
A shortcut may provide a faster reaction
Explanation:
Chemical reactions occur in a particular manner and speed if allowed to occur normally. However, shortcuts can be used for the essence of making the reaction proceed much faster than it naturally would. Catalysts are the substances used to provide these shortcuts.
A catalyst is a substance that increases the rate at which a chemical reaction occurs without being chemically used up in the reaction. A catalyst speedens up the chemical reaction by decreasing the activation energy. The activation energy is that energy needed for a chemical reaction to kick start. The higher the activation energy, the slower the reaction proceeds.
A catalyst, thus, creates a shortcut by lowering the activation energy of the chemical reaction, allowing it to proceed faster than when a catalyst is not used.
Answer:
B
Explanation:
Edge 2020