Answer:
The myofibrils are the contractile organelles in the muscle fibers.
Animal cells contain what structures
Answer:
Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.
Explanation:
Answer:Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.
Explanation:
what is the relation ship between the availabilty of resources and human population growth
Answer:
An increase in human population growth means there is an increased need for natural resources to supply the basic needs of the population.
Explanation:
Hox genes are regulatory genes in multicellular animals that code for transcription factors that determine the basic body plan in a developing embryo. They act as switches that turn other genes on and off. Scientists have found that a mutation in a fruit fly hox
gene produces flies with legs instead of antennae sticking out of their heads. Another hox gene mutation results in fruit flies with
two pairs of wings instead of one pair. Hox genes affect body plans by controlling the expression of many other genes
Many multicellular animals have the same hox genes. Which statement is evidence for this claim?
(1 point)
O There is a wide variety of body plans in complex animals.
o The body plans of complex animals are very similar to one another
The body plans of complex animals change over generations
The body plans of complex animals typically have a large number of mutations.
Hi! Welcome to Brainly! Thanks for asking a question!
So, based on the options provided in the question above, the correct option would be 'the body plans of complex animals are very similar to one another' or in other words Option B or 2.
Hope this helped! Happy holidays!
The correct option is The body plans of complex animals change over generations.
What are hox genes?
Hox genes are important regulators of how the animal body plan is organized. They contain transcription factors that when combined can give instructions to cells at various body levels on their potential morphological contributions.
In addition to its historical role in the anterior-to-posterior (AP) axis, HOX proteins also help to organize secondary axes and a number of different organs and tissues. Hox genes are grouped together in the genomes of many species that exhibit bilateral symmetry.
Because the sequence of genes in cis inside the cluster corresponds to the order of their expression domains along the various axes, this specific genomic architecture has functional significance.
Therefore, The correct option is The body plans of complex animals change over generations.
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what will be the result if a eukaryotic cell completes mitosis but does not undergo cytokinesis?
A cell that completed mitosis but does not undergo cytokinesis PRODUCES one cell with two nuclei, each identical to the nucleus of the parent cell. Cytokinesis is the last phase of cell division.
Cytokinesis is the process by which a parental cell divides its cytoplasm to produce two genetically identical daughter cells, each one containing one cell nucleus.
Cytokinesis occurs in both types of cell division, i.e., mitosis and meiosis.
In animal cells, cytokinesis occurs by the emergence of a contractile ring that appears just beneath the cell membrane.
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The plant in a is a control plant. explane this statment
Answer:
sgxycghshdgfjdyshgxhfjzgdz
why is dna ligase important for a cell? select all that apply.
Answer:
DNA ligases play an essential role in maintaining genomic integrity by joining breaks in the phosphodiester backbone of DNA.
Explanation:
That's why their important but you didn't list any suggestions so I don't know the exact answer choices but that would've answered the question by itself.
A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks? ____%
Answer:
0% or 100%
Explanation:
Because when you put it out onto a table you only get the combination black and white so there could be a chance of either
In recent years, poaching in Africa has declined. Will the decrease of poaching lead to a return of more elephants with tusks in future generations?
houses nasal conchae to enhance turbulence for filtering air
Answer:
Houses nasal conchae to enhance turbulence for filtering air. larynx. Prevents food and liquid from entering the rest of the respiratory tract.
Explanation:
Houses nasal conchae to enhance turbulence for filtering air through nasal cavity. Hence, the correct option is A.
What is nasal cavity?It is a large air filled space within the nose and is part of the respiratory system. It is lined by an inner thin layer of moist mucous membrane which helps to humidify and filter the air as it is breathed in.
The nasal cavity is divided into two parts-the right and left nasal cavities, separated by a thin bony wall called septum. It is involved in the sense of smell, as small receptors located in the mucous membrane of the nasal cavity are responsible for detecting different odors.
Overall, the nasal cavity is a crucial part of the respiratory system and plays an important role in protecting the body from inhaled irritants, facilitating the sense of smell. Hence, the correct option is A.
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The question is incomplete, but most probably your complete question is,
Houses nasal conchae to enhance turbulence for filtering air:
a) nasal cavity
b) larynx
c) trachea
d) pharynx
there is a net movement of water into a cell from the surrounding tissue fluid. is the tissue fluid more or less concentrated than the fluid inside of the cell?
The ________ variable is the observed or measured result.
Answer:
Hello, There!
QuestionThe ________ variable is the observed or measured result.
AnswerDependent Variables
Explanation:
Dependent variables are the factor that you observe or measure.
The dependent variable is the variable being tested and measured in an experiment and is dependent on the independent variable.Answer:
equal
Explanation:
got an 100 on quiz
What are the functions of the plant cell's parts. l will mark you the brainest.
Answer:
There are xylem vessels and pholem cell it is the major building block for the respiration and growth of plants
Are Dolphins social animals?
What are similarities and differences with other mammals
Any other interesting facts are welcome
Answer:
yes
Explanation:
yes twwnt y minutes long dolpin exercise tuna disg
Answer:
Yes
Explanation:
Dolphins are highly sociable mammals that establish close links with other individuals of the same species and even with dolphins of other species sometimes.
Similarities is that they live in water and they are Viviparous (animals that are born out of the womb)
Like every mammal, dolphins are warm blooded.
Unlike fish, who breathe through gills, dolphins breathe air using lungs.
The epidermis of the leaf surface has the stoma that can help carbon dioxide diffusive inside the leaf with how many percents?
(sorry, my english is bad)
Answer:
27. 3%
As most c2 are being made on the leafs
PLZ HELP ASAP(giving 80 points):
2. Write a micro-theme(short paragraph 100-300 words) using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
Answer:
The process through which creatures evolve is known as evolution. Mutations cause genetic variety throughout populations, and the ecosystem works with this diversity to select people who are most suited to their surroundings. Eventually, a species can develop into a plethora of others; as a theory suggests that sapiens started as monkeys but evolved into the humanoid beings that we are today. In biology, adaptation is the procedure where a species fits to its habitat; it is the outcome of natural selection acting on hereditary diversity over numerous generations. Survival the fittest is a saying that suggests the fittest survive, not the weak. This is commonly seen in everyday life, whether with humans, animals, plants, it holds the same meaning. An example would be that a person in better physical and mental health would go farther and live longer than one with weak physical and mental health.
The concept of "survival of the fittest" is a key tenet of evolution, which refers to the idea that individuals with traits that provide them with a competitive advantage in their environment are more likely to survive and reproduce than those without these traits. This process of natural selection leads to the gradual accumulation of beneficial traits in a population, resulting in adaptation and evolution over time.
What is adaptation?Adaptation refers to the process by which organisms develop characteristics that allow them to better survive and reproduce in their environment, such as camouflage or the ability to digest new types of food.
Evolution refers to the broader process of change over time in a population's genetic makeup and physical characteristics, resulting from the interaction between genetic variation, natural selection, and other factors. Together, these concepts help explain how organisms are able to adapt and change over time, resulting in the diversity of life that we see today.
The study of evolution has important implications for understanding the history and development of life on Earth, as well as for addressing modern challenges such as biodiversity loss and climate change.
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Johnny is drinking a glass of orange juice when he is informed that orange juice is acidic. He begins to panic, thinking his blood will soon turn to acid. Why should he not be worried?
A. Blood contains buffering agents which resist changes in pH.
B. Acids are not absorbed by the blood.
C. The stomach environment is basic, which neutralizes acids.
D. Acids are neutralized by saliva.
Answer:
B
Explanation:
blood only absorbs end products of digested food .
Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
What is blood?The blood is a fluid inside the circulatory system that contain different type of cells (e.g., red blood cells).
The blood served to maintain the internal equilibrium (homeostasis) of the body.The buffers in the blood include different types of proteins, bicarbonate/carbonic acid, and phosphate acid buffers.In conclusion, Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
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Next to each cause of deforestation, suggest a solution from the text or an idea of your own.
(a) large-scale agricultural use-
(b) cattle grazing-
(c) high demand for wood products-
(d) commercial logging-
(e) "urban sprawl"-
(f) mining -
(g) subsistence farming-
Answer:
small scaleuxuxfxd6ifkyfiyfoyfoyfo6f6f6fof
Main Points of the Theory of Plate Tectonics
Midocean ridges form at very large large cracks in _______
Molten magma fries through the crack and cools to form new ___________
New Magma from below pushes up, causing the seafloor to ________
Answer:
Midocean ridges form at very large cracks in the ocean.
Molten magma fries through the crack and cools to form new land.
New magma from below pushes up, causing the seafloor to spread (divergent boundary).
Hope this helps
Pls Mark As Brainliest
Have a great day!!!
Which is the longest cell in human body?
Answer:
nerve cell
Explanation:
i did it and got 100
Which statement best summarizes the function of DNA?
-An RNA sequence hooks up with a particular DNA sequence.
-DNA consists of genes that give instructions for making proteins.
-O A single DNA molecule splits into two DNA molecules .
-Covalent bonds join smaller molecules into proteins.
Answer:
-DNA consists of genes that give instructions for making proteins.
Which statement is true of carriers? Select all that apply.
A) They have one dominant allele.
B) They express the recessive trait.
C) They are heterozygous for a recessive disorder.
D) They can pass a gene for a recessive disorder.
B. They express the recessive trait
The carriers for a disease in a pedigree analysis is a heterozygous. They contain a dominant and a recessive allele. Thus, correct options are A, C and D.
What are genes?A gene is a segment of DNA that contains all the information for the development of organism. A carrier in genetics, is an individual who “carries” and can pass on to its offspring an allele associated with a disease and does not show symptoms of that disease. A carrier is an organism that carries two different alleles of a recessive gene and is thus heterozygous for that the recessive gene.
Dominant genetic disorders are those in which a mutation in just one copy of the gene pair is required for the disorder to develop. However, in recessive genetic disorders both alleles need to be recessive for the gene. This disease symptoms are only observed in case of homozygous condition.
Therefore, the correct options are A, C and D.
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Create a hypothesis: Ben wonders if sugar water will help his vine plant grow taller than it would with regular water. He would like to do an experiment. Create an appropriate hypothesis Ben can test using an experiment. *your hypothesis can be anything as long as it is in the correct format and related to the experiment!
PLZ HELP MEEE I NEED ID NOW(((
Answer:
If Ben waters his vine plant with sugar water, then the plant will not grow as well as it would when watered with regular water.
the origin of a new plant species by hybridization, coupled with accidents during cell division, is an example of
Answer:
An accadental invention?????
Explanation:
What are the options
The physical manifestation of a genotype, like blue eyes for bb, is an organism's
phenotype
genotype
codon
dominant allele
Answer:
phenotype plz mark me brailiest
Explanation:
Answer: phenotype :)
Explanation:
lesson 2 unit 3 genetics phenotype – the physical manifestation of a genotype
bio
is my answer correct ?
Please someone help me with this thank you
Answer:
each substance in a mixture keeps most of its characteristic properties
pls mark brainliest
which pathway allows for the breakdown of carbohydrates by splitting glucose molecules to form pyruvate?
Answer:
Catabolic pathways
Explanation:
Catabolic pathways release energy by breaking down complex molecules to simpler ones.
For example, in cellular respiration, glucose is being breaking down into CO2, H2O, and ATP.
The pathway for the breakdown of glucose to form pyruvate is called glycolysis
What is catabolism?Catabolism is the metabolic reaction in which large molecules ate broken down into smaller molecules with the release of the energy.
Examples of catabolic reactions include those that break down carbohydrates, lipids and proteins.
The pathway for the breakdown of glucose to form pyruvate is called glycolysis.
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What is the purpose of cell division after fertilization?
What characteristic do all protozoa display?
autotrophic
immobile
vertebrate
eukaryotic
The characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
What do you mean by Protozoans?Protozoans may be defined as single-celled microscopic organisms that significantly belong to the kingdom of Protista. These organisms are eukaryotic in nature, and hence they have a true and membrane-bound nucleus in order to function properly.
Some protozoans are definitely attached to the substrate or construct cysts. So, they do not migrate around. But some protozoans have the capability to move around at some stages in their life cycles mostly after the cell division.
So, option B is eliminated. Protozoans are heterotrophic as well. They use organic carbon as a source of energy. So, option A is eliminated.
Therefore, the characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
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Answer:
immobile
Explanation:
Immobile is correct
make a reflection paper about "limiting factors affect carrying capacity"
Answer:
Explanation:
Board of Education Curriculum Information:
1. Current Reality and Research*
In this course, students will engage in scientific inquiry, explore biochemistry, the cell, bio-energy,
mechanisms of genetics, and biotechnology. Students will also study change in organisms over time,
classification, and ecosystems. This course is designed to prepare students for A.P. Biology. Lab
experiences are an integral part of the course too. Common Core Literacy Standards for Science
and ISTE Technology Standards were reviewed and included.
2. Curriculum and Assessment Development and Revision
A. Curriculum Map/Pacing Guide – included in curriculum
B. Curriculum Development Review Feedback:
Content Leader review - [April 2015]
Director of Student Learning review – [April 2015]
Teacher/Administrator review-- [March 2015]
Curriculum Advisory Council review – [04/28/2015]
Academic Strategic Planning Committee review – [05/04/2015]
BOE First Reading – [05/21/2015]
BOE Second Reading/Approval – [06/204/2015]
Summary of curriculum and revisions: Last Curriculum Revision – [February of 2010]
Teachers used Course Level Expectation standards, previous curriculum, current curriculum
template, and content knowledge to develop this curriculum. The new curriculum supports
Biology standards as well as preparing students for A.P. Biology. The course continues to focus
on science transfer goals that transfer vertically among all science classes. It also supports the
Common Core Literacy Standards for Science and ISTE Technology Standards for Science.
This new curriculum is designed to increase rigor and relevance while preparing students to 21st
century learners. These students will be well prepared for semester exams and the Biology
E.O.C. exam.
3. Professional Development and Implementation
Professional Development Plan*
Teacher training dates ___TBD 2015-16___
Administrator training dates ___TBD 2015-16___
Approximate Expense ___$1400 ___
4. Evaluate Resources and Materials
Text Selection (if applicable)* 2016-2017
Approximate Expense_____$100,000____________
5. Monitor Implementation
Projected Date – 2017-2018 school year
6. Program Evaluation*
Projected Date – 2018-2019 school year
*see attached document(s)
PreAP Biology
Curriculum
Board Approved:
FHSD Academics SM PreAP Biology Date Approved ¨
Page 1
Francis Howell School District
Mission Statement
Francis Howell School District is a learning community where all students reach their full potential.
Vision Statement
Francis Howell School District is an educational leader that builds excellence through a collaborative culture that values students, parents,
employees, and the community as partners in learning.
Values
Francis Howell School District is committed to:
● Providing a consistent and comprehensive education that fosters high levels of academic achievement for all
● Operating safe and wellmaintained schools
● Promoting parent, community, student, and business involvement in support of the school district
● Ensuring fiscal responsibility
● Developing character and leadership
Francis Howell School District Graduate Goals
Upon completion of their academic study in the Francis Howell School District, students will be able to:
1. Gather, analyze and apply information and ideas.
2. Communicate effectively within and beyond the classroom.
3. Recognize and solve problems.
4. Make decisions and act as responsible members of society.
Science Graduate Goals
The students in the Francis Howell School District will graduate with the knowledge, skills, and attitudes essential to leading a productive,
meaningful life. Graduates will:
∙ Understand and apply principles of scientific investigation.