Answers
Answer: 1. founder effect
2. evolution
3. natural selection
4. species
5. geographically isolated
Explanation: Good luck! :D
Related Questions
what do cells and heredity have in common?
Answers
What are the differences between white blood cells and normal eukaryotic cells?
Answers
Answer:
White blood cells (WBCs) are specialized to respond to antigen and produce antibodies as well as undergo phagocytosis in response to toxic stimuli.
WBCs are part of immune system and there are five different kinds with specialized features.
In order to make a cell model, it is best to use a muscle cell and a nerve cell or neuron: there are pronounced structural differences and those are present throughout animal kingdom.
Lower animals ( such as insects, worms etc. ) have different immune system, however, they do have typical neuron and a muscle cell/skin cell (fibroblast). Such cell models are likely to be easy, distinct and bring you good grades without going through much complication and confusions of various organ systems and animal mod
Explanation:
Fat under the skin
answer is insulation
Answers
Answer:
huh is there any question
Explanation:
Eyepiece magnification(EM) X Objective magnification (OM)= Overall Magnification:
Answers
Answer:
I. Overall magnification (TM) = x40
II. Overall magnification (TM) = x100
III. Overall magnification (TM) = x400
IV. Overall magnification (TM) = x1000
Explanation:
A microscope can be defined as an optical device that is typically used to make an enlarged (magnified) image of a minute (small) object and as such reveals all the little information about the object that cannot be seen by the natural human eye.
Mathematically, the overall (total) magnification of a microscope is given by the formula;
Overall magnification (TM) = Eyepiece magnification(EM) X Objective magnification (OM).
I. When EM = x10 and OM = x4
TM = EM * OM
TM = x10 * x4
TM = x40
II. When EM = x10 and OM = x10
TM = EM * OM
TM = x10 * x10
TM = x100
III. When EM = x10 and OM = x40
TM = EM * OM
TM = x10 * x40
TM = x400
IV. When EM = x10 and OM = x100
TM = EM * OM
TM = x10 * x100
TM = x1000
What will determine whether or not mutations will be passed to offspring?
Answers
will be inherited only if it occurred on a chromosome in either the sperm cell or the ova cell out of many that eventually unite to form a zygote
If a SARS-CoV2 virus were to mutate and become and become better at attaching to respiratory cells, how would natural selection lead to this mutant virus becoming the dominant virus type? Use the four steps of natural selection in your response: overpopulation, genetic variation, competition, differential reproductio.
Answers
Answer:
Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.
Explanation:
1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.
2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would have lesser chances of entering the host cells and may or may not replicate.
3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.
4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.
Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.
competition
random chance
being the luckiest
Answers
There is a dominant trait that affects the short arm of chromosome #4 known as Huntington's disease. A woman that is heterozygous for Huntington's disease and a normal, unaffected male have a female child. What is the probability that this child may be affected by the disease?
Answers
Answer: 50%
Because there are different systems in the body to prevent diseases, however chromosome diseases are usually hereditary so there is about a 50% chance that the child may be affected by this disease.
Huntington's disease is a dominant chromosomal disorder, when a woman who is heterozygous marries a man who is normal, then the probability for the child to be affected is 50%.
What is Huntington's disease?Huntington's disease is a rare genetic disease which causes the progressive breakdown of neurons present in the brain. Huntington's disease has a wide impact on a person's functional abilities and results in movement, cognitive thinking and psychiatric disorders.
When a woman who is heterozygous (Hh) for Huntington's disease marries a man who is normal (hh) for the disease, the probability of the offspring to be affected with the disease can be calculated with the help of Punnett square. And, it will be 50%.
The Punnett square is attached with the answer.
Learn more about Huntington's disease here:
https://brainly.com/question/12572808
#SPJ6
How do you think meteorologists predicted the
arrival of a hurricane before the 1990s?
(Please help with a short sentence)
Answers
I
5. The diagram below shows two kinds of cells.
Font
Arial
Regular
B
Character
A biologist wants to classify protein secretions into groups based on the principal function of the protein.
Which cell would the biologist select to study and why?
SC.912.L. 14.3
Alignment
A. The cell on the left, because it has genetic information organized into chromosomes.
B
B. The cell on the left, because it has organelles that secrete proteins.
C. The cell on the right, because it has free proteins throughout its cytoplasm.
D. The cell on the right, because it has a flagellum that enables movement.
Spaci
10
Bulle
Answers
Answer:
c
Explanation:
Please helppp!!! will give the brainliest it's probably easy
Answers
A biological macromolecule is made up of glycerol and fatty acids. Based on this information, what type of molecule is this? Choose 1 answer: Choose 1 answer: (Choice A) A Nucleic acid (Choice B) B Carbohydrate (Choice C) C Protein (Choice D) D Lipid
Answers
Answer:
D. Lipids
Explanation:
A biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.
What are Biological macromolecules?Biological macromolecules may be defined as those large and organic molecules that are important to biophysical processes. It includes carbohydrates, lipids, proteins, and nucleic acids.
Nucleic acids are derived from a pentose sugar, a phosphate group, and a base. Protein is derived from their monomers known as amino acids. Carbohydrates are derived from monosaccharides units such as glucose. It includes carbon, hydrogen, and oxygen.
Triglycerides are a simple form of lipids that are constructed with the help of one molecule of glycerol while three molecules of fatty acids.
Therefore, a biological molecule that is made up of glycerol and fatty acids is known as Lipid. Thus, the correct option is D.
To learn more about Biomacromolecules, refer to the link:
https://brainly.com/question/2595296
#SPJ2
Which type of electromagnetic wave has the lowest frequency?
A. Ultraviolet
B. Visible light
C. Gamma rays
D. Microwaves
Answers
Answer:
D
Explanation:
What do organisms need both processes
Answers
Hope this helps (:
1. Explain why elements tend to form bonds in compounds and provide two examples of how they can do that.
2. Difference between polar and non-polar molecule.
Answers
2. Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.
The infection-fighting cells that are produced by the immune system are manufactured in specific places around the body, for example, in the lymph nodes and the spleen. However, an infection can occur anywhere in the body. How do these infection-fighting cells manage to move around the body and get to the sites of infection?
A. There are lymph nodes every few millimeters all over the body.
B. They are excreted and float freely around the body, hunting infections.
C. They are carried around the body in the circulatory system.
D. They are moved around the body as muscles squeeze against them.
Answers
Answer:b
Explanation:
Explanation:
those cells are white blood cells.
the xx chromosome type is found in__
Answers
Answer:
[tex]females \: \: \: \: \: \\ it \: is \: your \: right \: answer \: [/tex]
please help me!!! its for hw
Answers
Answer:
100% white cows if i understand what theyre asking for
Explanation:
what is an eclipse ? please explain
Answers
Answer:
An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial objects is known as a syzygy
Explanation:
Answer:
An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obcured.
PLEASE answer all these questions if you can. 1 attempt for all
1.) Which of the following is true about prophase?
chromatin changes into chromosome form
all of the choice occur during prophase
chromosomes line up at the equator of the cell
cytokinesis occurs
2.) Which of the following is true about metaphase?
chromatin changes into chromosome form
chromosomes line up at the equator of the cell
all of the choice occur during metaphase
nucleolus disappears
3.) Which of the following describes the products of mitosis?
one cell identical to the parent
cell death
two unique cells
two daughter cells that have identical DNA to the parent
4.) What is the role of the spindle during cell division?
to separate the chromosomes
to break down the nuclear membrane
to divide the cell in half
to duplicate the DNA
5.) In what phase of mitosis are chromosomes first visible?
Interphase
Prophase
Telophase
Metaphase
6.) A centromere
holds two sister chromatids together
is an unduplicated chromosome
is half of a duplicated chromosome
forms the spindle fibers
7.) In which phase of meiosis would you see crossing over occur?
Anaphase I
Prophase I
Anaphase II
Prophase II
8.) Oogenesis produces __ viable cell/s, and spermatogenesis produces __ viable cell/s.
4, 2
4, 1
4, 4
1, 4
9) Haploid gametes produced in males are called sperm.
True
10.) Which of the following best describes a tetrad?
the spindle fibers at the end of telophase I
the four cells resulting from meiosis
homologous chromosomes during prophase I
tetrads are not present in meiosis, they are present mitosis
False
Answers
Answer:
1. a
2. b
3. d
4. a
5. b
6. d
7.b
8. im not sure abt this one, sry :(
9. yeah, true
10. c
Explanation:
Pro phase is the starting stage of the division where the cell division begins. Spindle fibers are broken into half and the type of division that is present in gametes is reduction division that is the meiosis. Synapsis occurs during mitosis.
What is synapsis ?It is defined as the stage in which the pairing of the homologous chromosomes take place.
Chromosomes do not line at the equator as the lining of the chromosomes at the equator occurs on the stage of mitosis where it is possible to see the V,J and L shapes of the paired chromosomes. After this stage the exchange of genetic material takes place.Chromatin do not change into chromosomes in the metaphase.
Mitosis is present only to make the duplicate copies of the cell. The identical daughter cells are made when the division of mitosis is taking place in the cell. Chromosomes are first visible in the prophase. A centromere holds two sister chromatids together.
In meiosis crossing over takes place in anaphase 1.
Learn more about mitosis at :
https://brainly.com/question/26678449
#SPJ6
What is the main idea of this text?
A. Climate change is a complex and unpredictable process involving
feedback loops.
B. Disagreements about climate change have prevented scientists from
finding real solutions to global warming.
C. Wallace Broecker's theory may have been incorrect, but he presented
some worthwhile ideas.
D. Climate change can be completely reversed if carbon dioxide production
is changed.
Answers
Answer:
should be b
Explanation:
Answer:
disagreements about climate change have prevented scientific from finding real solutions to global warming
Question 7 of 30
Which of the following is the best definition of an ecosystem?
O A. A system formed by the interactions of all of the living things
within an area
B. A system formed by the interactions of organisms of the same
species that live in the same area
C. A system formed by the interactions of living organisms with the
nonliving physical environment
D. A system formed by the interactions of all of the nonliving things
that exist in the same area
Answers
Answer:
C
Explanation:
ecosystem is living AND non living things
The best definition of an ecosystem is option C: "A system formed by the interactions of living organisms with the nonliving physical environment."
What is an ecosystem?An ecosystem is a community of living organisms, such as plants, animals, and microorganisms, interacting with each other and their nonliving environment, including the atmosphere, soil, and water.
This interaction creates a functional system that can be characterized by energy flow and nutrient cycling. The other options are not accurate definitions of an ecosystem, as ecosystems involve both living and nonliving components, and the interactions are not limited to a single species.
Ecosystems are not isolated, and they can interact with other ecosystems. For example, rivers and streams can transport nutrients and organisms downstream, connecting different ecosystems such as a forest and a freshwater system. Similarly, the atmosphere can transport pollutants and other materials across vast distances, affecting ecosystems far from their source.
In summary, an ecosystem is a complex, interconnected system where living organisms interact with each other and the non-living components of their environment. Understanding the functions and interactions within ecosystems is critical to developing effective management strategies for conserving biodiversity and maintaining the ecosystem services that humans depend on.
Learn more about ecosystem at:
https://brainly.com/question/13979184
#SPJ7
Please can anyone help me ill make you the brainiest, I need help with these questions!
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answers
Answer:
the moles of oxygen react only 1.05 moles
Explanation:
because the formula of methane is CH4 so it has 10 molecule so 10.5 ÷10 =1.05
Which statement correctly describes the significance of meiosis during gamete formation?
Answers
Answer:
Explanation:
During sexual reproduction, meiosis generates genetic variation in offspring because the process randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism.
A scientist classified 10 organisms into the same phylum based on their similarities. She further grouped 4 of these organisms together based on the
characteristics they shared. In to which level of classification did the scientist classify the 4 organisms?
a. family
b. genus
c. class
d. order
Answers
Why is animal testing bad?
Answers
Answer:
Explanation:
Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.
Answer:
Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.
Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.
Witch example of potencial energy being transformed into kinetic energy?
Answers
Answer:
Example of potential energy being transformed into kinetic energy will be; Holding a ball in your hands and then throwing it down a hill. The move of the ball as being transformed to kinetic energy.
Explanation:
Potential and kinetic energy are two forms of energy that can be converted into each other. Potential energy is the energy held by an object because of its position relative to other objects or its electric charge. While kinetic energy of an object is the energy that it possesses due to its motion.
Which animal has a bilaterally symmetrical body plan?
A jellyfish.
A lobster.
Coral.
Answers
Guys pls help me!!!!!!
Answers
Answer
A
Explanation:
that is the cell membrane it is used specifically for that reason, to help good things get it and to keep bad things out
The following chart describes several different parts of flowering plants.
A three-column table. Column 1 is labeled A with a row for male reproductive structure. Column 2 is labeled B with a row for female reproductive structure. Column 3 is labeled C with a row for composed of sepals and petals.
What is the correct label for column A?
seed
pistil
stamen
angiosperm
Answers
Answer:
D) Angiosperm
Explanation:
I hope this helps :) Tell me if I am wrong