Answers
Answer:
dolphins and porpoises
Explanation:
they all use echolocation and commonly get trapped by net fishers :(
Hope this helps you out :P
Answer:
Dolphins
Explanation:
Dolphins utilize sounds via echolocation to orient themselves and survive by detecting prey. In murky waters, visibility may be extremely low, thus dolphins rely on echolocation rather than sight to catch prey and avoid predators.
Hope this helps! :)
Related Questions
The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
Answers
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Explanation:
The theory of endosymbiosis proposes that eukaryotes descended from a combination of both archaea and bacteria. Evidence that supports this theory includes the similarities between mitochondria and chloroplasts to free-living bacteria, the presence of double membranes around mitochondria and chloroplasts, and the fact that mitochondria and chloroplasts have their own DNA.
Mitochondria and chloroplasts contain some of the same enzymes and transport systems as bacteria, and are similar in size and shape to bacteria. In addition, they both reproduce by binary fission, similar to bacteria. The presence of double membranes around mitochondria and chloroplasts also supports the theory of endosymbiosis, as this suggests that the organelles were engulfed by the host cell and retained their own membranes.
Finally, mitochondria and chloroplasts have their own DNA, which is circular like bacterial DNA. The DNA of mitochondria and chloroplasts also lacks histones, which are present in eukaryotic DNA, and is more similar to bacterial DNA in terms of gene expression and replication.
Together, these lines of evidence support the theory of endosymbiosis and suggest that mitochondria and chloroplasts were once free-living bacteria that were engulfed by a host cell and evolved into the organelles found in eukaryotic cells today.
lab reports of onion cell
Answers
Answer:
you gotta show the onion cell if you want this to be answered
State the unique characteristics of epithelial tissue.
Answers
Answer:
Characteristics of epithelium tissue
1.Polarity- Epithelium is arranged so there is one free surface (apical surface) and one attached surface (basal surface)
2.Cellular nature– Cells in epithelium fit closely together side by side and sometimes atop each other to form sheets of cells. These sheets are held together by specialized junctions.
3.Supported by connective tissue– Attachment to a layer of connective tissue at the basal surface forms a layer called the basement membrane, an adhesive layer formed by secretions from the epithelial cells and the connective tissue cells.
4.Avascular– Epithelium typically lacks its own blood supply.
5.Regeneration– Epithelium cells can regenerate if proper nourished.
6.Absence of nerves (except for a few axons in the deeper layers)
Classification scheme of epithelial tissue:
Typically epithelial tissue is classified on the basis of arrangement and shape of cells. For naming the tissue types, the arrangement of the cells is stated first, then the shape, and is followed by “epithelium” to complete the naming. For example; Simple Squamous Epithelium.
Explanation:
How do people affect the environment?
Answers
Answer:
Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation have an adverse effect on the physical environment. Climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.
Explanation:
Which of the following is the most permeable?
gravel
nonporous rock
clay
shale
Answers
Answer:
I think the correct answer of this question is first option. Gravel is the most permeable
During a University of Nevada, Reno blood donation campaign, the frequencies of alleles determining the ABO blood groups were determined to be 0.70 for IO, 0.2 for IA and 0.1 for IB. Assuming random mating, what is the expected frequency of blood type O?
Answers
Answer:
The expected frequency of blood type O is 0.49
Explanation: Due to some technical problems, you will find the complete answer and explanation
1. Which of the following is not evidence of an earthquake?
Cracks in the sidewalk
Bumps in the road
Rumbles and shakes
Precipitation
Answers
Answer:
precipitation would be the answer
Check all that are true of the following scenario.
An archer strings an arrow on a bow and draws the string back. Aiming the bow
upwards at a 45 degree angle, the archer pauses with arms locked into position and
then releases the string. The arrow flies upwards making an arc and then sticks into
the trunk of a tree with an audible thud.
At least four different types of energy are illustrated in this example.
The first energy transformation in the scenario is chemical energy to kinetic.
From the time the archer draws the bow until the thud us heard, entropy increases in
the universe.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the
muscles of the archer.
When the arrow sticks into the tree the original energy has all been used up.
Answers
Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.
The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.
When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.
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TTT 18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants 19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens 20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera 21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm 22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class 23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium 24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population 26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista 25. Ecology is a biological science that deals with all of the following except C. organism D. none
Answers
All of the options are chemical approaches to control micro-organism excepts: B Disinfectants
19. The scientific name for modern man is: B. Homo sapiens
20. kingdoms are prokaryotic organisms placed D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are: B. Angiosperm
22. taxonomic groups contains closely related organisms A. Genus
23. Malaria causing single-celled parasitic protozoan is called: D. Plasmodium
24. kingdoms consists of eukaryotic organisms such as yeast, molds, and mushrooms A. Kingdom fungi
25. Ecology is a biological science that deals with except: D. none
26. The organism that are consumer is D. Scavengers
What is the chemical approaches to control micro-organismDisinfectants are special chemicals that are used to kill germs or prevent them from growing on surfaces or objects. They are not usually used to control microorganisms within living things, unlike antibiotics, antiseptics, and autoclaving, which are all chemicals used to control microorganisms.
Homo sapiens is the fancy name used by scientists to refer to regular, everyday humans This is the species that humans are a part of.
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18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants
19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens
20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm
22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class
23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium
24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population
25. Ecology is a biological science that deals with all of the following except Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista C. organism D. none
26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers
what are some organism animals ? ( 10th grade )
Answers
Some animals include, among others, mammals (cats, dogs, dolphins), birds,reptiles (lizards), fish, amphibians, arthropods, etc.
What is an animal?An animal is an organism belonging to the Kingdom Animalia, which includes invertebrates such as arthropods (e.g., arachnids) and vertebrates such as mammals and fish.
Animals are characterized to share certain features such as oxygen respiration, movement, heterotrophic habits (because they need other food sources to survive), sexual reproduction, etc.
In conclusion, some animals include, among others, mammals (cats, dogs, dolphins), birds,reptiles (lizards), fish, amphibians, arthropods, etc.
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Draw and label a simple diagram to show how DNA is constructed from sugars, phosphates and bases.
Answers
The DNA is constructed from sugars, phosphates and bases as follows:
explain details all process of phosphorous cycles?
Answers
Answer:
The biogeochemical cycle known as the phosphorus cycle describes how phosphorus moves across the Earth's ecosystem. All living things require phosphorus as a necessary nutrient, and it is required for many biological functions including DNA synthesis, energy transmission, and cell division.
Explanation:
The phosphorus cycle has several key steps, including:
Weathering: Phosphorus is present in rocks and minerals, and weathering processes such as erosion and dissolution release it into the soil and water.
Adsorption: Once in the soil, phosphorus can be adsorbed (attached) to clay and organic matter particles, making it less available for plant uptake.
Uptake by plants: Phosphorus is taken up by plants through their roots and used for growth and metabolism.
Animal uptake: Animals consume plants and incorporate the phosphorus into their own bodies for growth and metabolism.
Decomposition: When plants and animals die, their bodies are broken down by decomposers, releasing the phosphorus back into the soil.
Leaching: Some of the phosphorus in the soil can be leached (washed out) into waterways and oceans by rainwater and irrigation.
Deposition: Phosphorus can be deposited into sediments and sedimentary rocks through precipitation of minerals such as apatite.
Human activities: Human activities such as mining, agriculture, and waste disposal can also affect the phosphorus cycle by releasing large amounts of phosphorus into the environment and altering natural processes.
The phosphorus cycle is relatively slow because phosphorus is not readily transformed between different forms and it is mostly stored in rocks and soil, unlike the other elements cycles such as carbon and nitrogen that are more dynamic and have a faster turnover.
7. A niche is
a) a small population of organisms
b) a place in which organisms live
c) a large collection of ecosystems
d) the role an organism plays in an ecosystem
Answers
Answer:
its d!
Explanation:
good luck! :)
While Mitosis produces 2 identical cells for growth, repair and replacement; what is the purpose of Meiosis? (Choose 3)
a
increase genetic diversity
b
produce identical copies of the diploid parent cell
c
keeping the chromosome number same as parent cell
d
reduction of the number of chromosomes, creating a haploid gamete
e
produce non- identical genetically different gametes
Answers
Answer:
a,c,e
Explanation:
Drag the labels to their appropriate locations on the diagram. Help Reset Side with higher concentration of square molecules Side with lower Energy input from the cell Transport protein Plasma membrane concentration of square molecules ATP
Answers
A) Side with lower concentration of square molecules, B) Transport protein, C) Energy input from the cell, D) Plasma membrane, E) Side with higher concentration of square molecules.
What is active transport?Active transport is a cellular process that requires energy to move molecules or ions against their concentration gradient, from an area of low concentration to an area of high concentration. This energy is typically derived from the breakdown of ATP, the main energy currency of cells. The active transport is necessary for a wide range of biological functions like the nutrient uptake, waste removal and cell signaling. Some examples of active transport are sodium potassium pump.
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Which is/are possible genotypes for a person with straight little finger and brown eyes?
a. bbrr
b. bbRR
c. BbRr
d. bbRr
Answers
Answer:
The correct answer is b. bbRR.
Explanation:
Brown eyes color is dominant over blue eyes color. So, we can assign the letter R to the dominant allele that expresses brown eyes and r to the recessive allele that expresses the blue eyes. The phenotype bent little finger is dominant over the phenotype straight little finger. We can assign the letter B to the dominant allele, and b to the recessive allele.a. bbrr : This genotype belongs to a person with blue eyes and straight little finger
b. bbRR : This genotype belongs to a person with brown eyes and straight little finger
c. BbRr : This genotype belongs to a person with brown eyes and bent little finger
d. bbRr: This genotype belongs to a person with brown eyes and straight little finger.
Which factors that affect personal health are the most easily controlled?
a.
genetic
b.
environmental
c.
lifestyle
d.
global
Answers
Answer:
c. lifestyle
Explanation:
There are many things that can affect a person's health but not all can be controlled. For example, genetics are what people are born with and cannot be changed. Additionally, global and environmental situations can change but it takes an entire community; so, one individual cannot change these factors. However, one person can change their own lifestyle, assuming they have the willpower.
Brandon was walking along one day and came across a rock. He noticed a fossil in it. What type of rock did he have?
Answers
Answer
Sedimentary rock
What building blocks form a DNA molecule?Amino acidsNucleotidesFatty acid chainsPolysaccharides
Answers
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Answers
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
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what does it show the last answer choice is quarter moon
science!!!
Answers
Answer:
Solar eclipse
Explanation:
The moon is directly in between the Sun and Earth.
1. Marco's little brother is watching a TV program about the gene that causes the genetic disease hemophilia. People with this disease cannot make a protein that is needed for blood to clot. After a few minutes, he turns to Marco and asks, "what exactly is a gene, anyway?"
Which of the following BEST describes a gene?
A. A gene is a random change to an organism's DNA.
B. A gene is a structure in a cell that contains the cell's chromosomes.
C. A gene is made of DNA and contains the instructions for building proteins.
D. A gene is a protein that makes up an organism's structure and helps it function.
Answers
A gene can be described as being made up of DNA and it contains the instructions which are required for the building of the proteins.
The correct option is option C.
Genes are basically considered as the the functional units of heredity as they are basically composed of DNA, which is the nucleic acid responsible of the transmission of information from one generation to the other generation.
The chromosomes which are present in our body are basically made up of DNA which contain a number of genes. Each of the gene basically comprises of certain set of instructions which are required in order to perform a particular function or codes for some proteins.
Hence, the correct option is option C.
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If a population grows larger then it’s evironmental carrying capacity then
Answers
The pedigree below shows inheritance of an X-
linked trait in a family. Based on the inheritance
pattern, what is the genotype of the person in
generation III (third generation), letter b?
Generation
11
111
TOOOD
500
Answers
Pedigrees have multiple uses. One of them is getting to know an individual's genotype. In the e xposed example, the individual IIIb is X-Y.
What is a pedigree?
A Pedigree is the representation of a family's history. This graph is used to track a trait through different generations, and analyze the inheritance pattern of a particular gene and its expression.
It is a tool used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
In sex linked inheritance, we need to remember that the gene coding for the trait is linked to the sex-chromosome (in this case, the X-chromosome).
In pedigrees, usually affected individuals or individual carring the trait are representes with solid black figures.
Individual IIIb is a black square, meaning it is an affected man. Its genotype is X-Y. The X-chromosome is carrying the recessive allele (-).
In the attached files you will find the pedigree with the genotype of each member of the family. Notice that individuals X+X represent either homozygous dominant or heterozygous females.
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the amount of space that matter occupies is called______
Answers
Answer:
Volume!
Explanation:
The amount of space that matter occupies is called its volume. Solids, liquids, and gases all have volume. :)
Which statement best describes the earliest ancestors of plants
Answers
Answer:
they live in water
Explanation:
you can google the question
Answer:
d
Explanation: they lived in water
Which of the following statements is not an observation?
O Jessie is wearing red shirt.
Jessie has blond hair.
O Jessie is wearing a red shirt because her blue one got dirty.
O Jessie has her hair in a ponytail.
Answers
Answer:
the 3rd option - Jessie is wearing a red shirt because her blue one got dirty.
*PLEASE HELP!!! I’ve never needed help this badly before!*
designing a device to protect an egg on impact student guide
materials
four sheets of eight and a half by 11 inch paper
1 m of masking tape
One receivable plastic bag size for an egg
1 m of string
three straws
white school glue
for this assignment your teacher will give you an egg and some building materials. You will use these materials to build a device that will keep an egg from cracking when it is dropped from a certain height. Then you will test the device determine how well it worked and make recommendations to improve its design. You will present your final design and logic that supports it in a lab report. Your lab report must include the title and initial design, observations from your experimental tests and recommendations for a final design based on force and momentum concept. as well as observations from the test conducted. To help you write your lab report there is a student worksheet on the last few pages of this document.
egg drop student worksheet
use this worksheet to design your device and record your data. You can use this form to help you write your lab report.
height of egg drop
ideas for prototype
design preliminary sketches (attach separate paper if needed)
option A
advantages and disadvantages
option b
advantages and disadvantages
option c
advantages and disadvantages
which of these three designs will move forward with? explain your reasoning for selecting this design.
building the prototype
what modifications, if any, did you make to the design during the construction process?
predictions
Will your device cushion the egg?
how are your device do this?
will your device increase the time it takes for the egg to impact the ground? how your device do this?
observations
record your observations in the results of the experimental test of your device below.
evaluating your prototype
what worked well?
which features can be improved upon?
suggestions
how could the design of this device be improved?
why would this change be an improvement?
What force and momentum principle in this movement is based on?
Sketch a final design
draw a well labeled sketch of the final design.
If you need any pictures, please let me know as I can’t post them all here!
Answers
We can see here that in order to design a device, here is a guide:
Step 1: Understanding the requirements
Step 2: Brainstorming and sketching
What is a device?A device refers to a physical or mechanical tool, instrument, or apparatus designed to perform a specific function or task. It is typically created with the purpose of achieving a particular objective or solving a problem.
Continuation of the steps:
Step 3: Selecting a design
Step 4: Building the prototype
Step 5: Making predictions
Step 6: Conducting experimental tests
Step 7: Evaluating the prototype
Step 8: Providing suggestions
Step 9: Understanding force and momentum principles
Step 10: Sketching the final design
Devices can vary in complexity and size, ranging from simple handheld tools to complex machinery.
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All cells have DNA that must be replicated True or false
Answers
The answer is True.
What is responsible for production of a blood moon?
absorption of blue light by the Earth's atmosphere
absorption of red light by the Moon's atmosphere
absorption of blue light by the Moon's atmosphere
absorption of red light by the Earth's atmosphere
Answers
Answer:
Blood Moons happen during a total lunar eclipse. This occurs when the Earth moves between the Moon and the Sun, casting a large shadow on the Moon, putting the Moon in darkness.
Explanation:
hope it will help you