Answer: The animal cell doesn’t have a cell wall
Explanation: Visit bbc bite size
Answer: A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.
Natural selection effects on allele frequencies ( write in your OWN words)
Answer:
natural selection cause a change in an allele frequencies over time, therefore this increases the likelihood that certain individuals with specific alleles will survive to a reproductive age, enabling them to pass in their alleles to their offspring.
Additional observations were made on day 21, and no yellow-leaved seedlings were found alive in either dish. This is most likely because
Answer: Inability to convert the light energy into chemical energy.
Explanation:
The above question relates to the issue regarding photosynthesis. Plants contain chlorophyll and this helps them in the conversion of the light energy that they get from the sunlight into a chemical energy.
In the case that no yellow-leaved seedlings were found alive in either dish, the reason for this will mainly be because the plant was not able to convert the light energy into chemical energy.
Describe the structure and function of chitin.
Answer: Chitin is one of the most important biopolymers in nature. It is mainly produced by fungi, arthropods and nematodes. In insects, it functions as scaffold material, supporting the cuticles of the epidermis and trachea as well as the peritrophic matrices lining the gut epithelium.
other peerson is correct
help, I don't know the answers for these
Imagine you accidently step on a sharp object with
your bare foot.
Explain how the parts of the peripheral nervous
system work with the central nervous system to
produce a response to the stimulus
Answer: receptors in the skin stimulate sensory neurons
Sensory neurons send messages to the central nervous system
Interneurons send messages to the motor neurons in response to messages received from sensory neurons
Motor neurons cause muscles in the leg to contract and pull the foot away
Explanation:
To produce a response to the stimulus, receptors (sense organs, muscles, glands, etc.) receive stimuli from the environment and from inside your body.
How peripheral nervous system works with the CNS?To produce a response to the stimulus the central nervous system processes information, it is the information that is received from the peripheral nervous system.
After that, the central nervous system sends this processed information to the peripheral nervous system. The peripheral nervous system sends a signal to the body part that needs to respond so you can react appropriately to the stimulus.
Therefore, if you accidentally step on a sharp object with your bare foot the peripheral nervous system work with the central nervous system to produce a response to the stimulus through receptors.
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Describe temperate continental climates.
How much longer is an average day in May compared to October?
i give branily
Answer:
There is no difference there are 31 days in May and October.
Explanation:
Only laboratories BSL-3 and higher require fire extinguishers, emergency showers and eye wash stations.
Answer:
false
Explanation:
Fire extinguishers, emergency showers and eye wash stations are basic safety elements that must be present in all laboratories, regardless of their classification. This is because these are essential elements for common accidents in laboratories and can be easily solved with their presence.
what is the cell theory
Answer:
a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter
What are some of the differences between a forensic autopsy technician and a forensic pathologist assistant?
Answer:
The differences between a forensic autopsy technician and a forensic pathologist assistant are as follows:
Forensic autopsy technician generally work in morgues and hospital while forensic pathologist assistant work in research laboratories and hospital laboratories.Forensic autopsy technician are responsible to prepare the dead body for autopsy while Pathology assistants do research on the tissues of body.Autopsy technician handle morgue examination area, while pathology assistants handles laboratory examination area.Describe the energy transformations that occur when you use energy to
power your computer? (At least 4 sentences)
PLEASE HELP!!
Answer:
How is energy transformed in computers? Mostly from electrical to heat. The electrical may come from chemical in the form of a battery. A very small proportion of the electrical energy is converted to light (the screen) and sound, and some kinetic in the rotation of fans or hard disk platters.
Explanation:
How and where is NADPH produced?
Answer:
NADPH is formed on the stromal side of the thylakoid membrane, so it is released into the stroma. In a process called non-cyclic photophosphorylation (the "standard" form of the light-dependent reactions), electrons are removed from the water and passed through PSII and PSI before ending up in NADPH.
Compact Bone is hard and dense but, it is not solid. It is filled with holes and has small canals for blood vessels and nerves.
True
or
not?
The compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
What is the significance of compact bone?Compact bone is a dense, hard bone tissue that provides structural support and protection to the body, and it is also involved in the storage of minerals, such as calcium, which is important for the strength and density of bones. Haversian canals are present in the compact bone and contain blood vessels, nerves, and other tissues that support the bone.
Hence, compact bone is hard and dense, but it is not solid; it is filled with holes and has small canals for blood vessels and nerves, which is a true fact as the compact bone is one of the dense bones present in the body.
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What is main difference between fresh water & ocean water ecosystem?
the animals that live there
one is deep & one is shallow
one has salt & one does not
the location of fresh and salt water ecosystems
PLEASE HELP THIS IS HELP
Answer:
I think it might be A. I'm not sure.
what is the definition of Paramecium?
Answer:
A Paramecium is a single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia.
Explanation:
what happens if you just change the elasticity of the objects?
Answer:
Cuando un material elástico que contiene fluido se deforma el retorno del material a su forma original se retrasa en el tiempo y es más lento para restaurar a su posición original. Materiales viscoelásticos exhiben tanto amortiguamiento viscoso y una respuesta elástica durante la deformación.
What type of mutation has occurred in the following example? Original DNA sequence С т с Original amino acid sequence Glutamic acid Mutated DNA sequence C T C New mRNA sequence G A G New amino acid Glutamic acid GG с Proline G G G С С С Proline T A G Isoleucine T A G A U с Isoleucine G C A Arginine G С A С G U Arginine A) frameshift mutation (due to deletion) B) nonsense mutation C) silent mutation
Answer:
b
Explanation:
are corks prokaryotic or eukaryotic cells?
Answer:
Cork cambium (pl. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm. The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.
Comparison of Eukaryotes vs. Prokaryotes. Play media. 3D animation of aprokaryotic cell that shows all the elements that compose it. A prokaryote is a single-celled organism that lacks a membrane-bound nucleus (karyon), mitochondria, or any other membrane-bound organelle.
A eukaryote is any organism whose cells contain a nucleus and other organelles enclosed within membranes. Eukaryotes belong to the taxon Eukarya or Eukaryota
Explanation:
Corks are a type of plant part that is eukaryotic cell having well developed nucleus.
What are corks?Cork cells are dead cells found in the bark of stems. They appear hexagonal or pentagonal under a microscope. In 1665, Robert Hook used a microscope for the first time to examine cork cells.
Plant cells that mature into mature cork cells form the protective water-resistant tissue in the outer covering of stems or trunks.
Cork cells are genetically programmed not to divide and, as a result, are considered dead cells.
Eukaryotes are organisms with nuclei and other membrane-bound organelles. Eukaryotic organisms include all animals, plants, fungi, and protists, as well as the majority of algae.
Thus, it can be concluded that the corks are eukaryotic cells.
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What was the Scientific Revolution of the mid-1500s and 1600s? What is the scientific method? List the major steps of the scientific method. What are the lasting consequences of the scientific revolution?
Answer:
Question: What was the Scientific Revolution of the mid-1500s and 1600s?
Answer: Before the mid-1500s and 1600s, Scientists feed on ancient scholars scientific materials and what the church explains through the Bible of how God created the universe and the people that lived in the world. The interest people have to observe their natural environments, coupled with the rise of more educated scientists led to the Scientific Revolution which uses observation of the natural world, experimentation, and a well-followed scientific method to discover the world.
Question: What is the scientific method?
Answer: During the mid-1500s and 1600s scientists developed a method called the scientific method with the aim to lay emphasis on observing the natural world and experimentation to test hypothesis. Making them start thinking like scientists instead of accepting unproven theories.
Question: List the major steps of the scientific method.
Answer:
1. Observation
2. Experimentation
3. Logical Ideas
4. Hypothesis
Question: What are the lasting consequences of the scientific revolution?
Answer:
1. It shaped the way people think and make people question and observe their environments.
2. It embraces the acceptance of proven and tested theories rather than some mystical beliefs.
What is natural selection and what are its effects on allele frequencies? (Due at 11:59)
From about 4 billion years ago to about 2.5 billion years ago, oxygen gas became more common in Earth's atmosphere. Oxygen was a toxic compound to most life forms from that time period. Today, oxygen is required by all but some of the most primitive life forms. Which statement best explains how early life forms that were harmed by oxygen evolved into today's life forms that require it?
Answer:
C
Explanation:
Over time, many species gradually adapted to a more oxygen-rich environment, allowing them to survive in shallow water and on land.
From about 4 billion years ago to about 2.5 billion years ago, oxygen gas became more common in Earth's atmosphere, but the early life forms were harmed by the gas, and later those who survived passed on their genes to the next generation through evolution.
What is the significance of oxygen in evolution?Evolution is a process that explains life's ability to adapt and change over time in response to environmental conditions and the process of evolution is one of the central mechanisms driving life's diversity, but the presence of oxygen harmed early life. As life forms evolve, oxygen becomes one of their most important gases.
Hence, from about 4 billion years ago to about 2.5 billion years ago, oxygen gas became more common in Earth's atmosphere, but the early life forms were harmed by the gas, and later those who survived passed on their genes to the next generation through evolution.
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Do you agree or disagree,cutting down forest is worthwhile even though it brings a lot of economical benefits. Remember these countries need extra GDP
Answer:
I disagree there are definetly more things that can up a country's GDP than killing off animals that are helpless and important to life itself there is no need be continously killing trees and destroying habitats. You can start more businesses or even try to find another source of GDP. But the simple truth is that it is wrong and unnessecary
Explanation:
brainiest plz
Answer quick pls
Why is it important for cells in your body to go through the cell cycle?
Answer:
It is important because if your cells do not reproduce you would eventually run out of cells and die.
Explanation:
Answer:
The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive
Explanation:
Help plz
In the course of natural selection, best adapted organisms
tend to______and therefore produce ______offspring.
A: die off, many
B: overproduce, abnormal
C: survive, more
D: die off, few
JUST THE LETTER CHOICE
Answer:
C: survive, more
Please give me brainlyest
Answer:
C
Explanation:
If organisms are best adapted for the enviorment then they will survive so that means that they will also be the ones to pass on these advantagous apatations to its offspring.
Is there anyone know what’s the answers?
Answer:
1. microorganisms
2. antibiotics
3. wine
4.yoghurt
5.aerobic respiration
6.Microbial spoilage
If the Carbon-14 found in a mastodon tooth went through 8 half lives, how old is the tooth? To help find the answer, use 5,000 years for the half life of Carbon-14. 8,000 years old 14,000 years old 30,000 years old 40,000 years old
Answer:
The age of the mastodon tooth is about 40000 years.
Explanation:
The presence of carbon-14 decreases exponentially in time. Let consider half-life of Carbon 14 in 5000 years. If the mastodon tooth went through 8 half lives, then we estimate its age in 40000 years.
The age of the mastodon tooth is about 40000 years.
A boy is anchored to the ocean floor a large wave approaches the boy how will the boy move as the wave goes by
Answer:
The buoy will move because the wave will push it.
Explanation:
The hours of daylight can vary greatly because of latitude. How would being near the equator shape the amount of sunlight per day in those countries? Explain your answer.
Answer:
Explanation:
The amount of daylight that is received is directly proportional to how close the sun is to each hemisphere. This happens due to Earth's inclined axis which changes as the Earth rotates and causes more daylight in the Northern or Southern hemispheres which is when summer starts in each. That being said the Equator is the only location that has an even amount of sunshine all year round. This is why it is always hot and Equator cultures only recognize dry and wet seasons but still consider it summer all year round.
Organisms, like humans, look different because we share all the same variations of traits, but have different traits.
true
false
Answer:
true
Explanation:
It's like zebras can never have the same stripes. Nothing can be created exactly the same.
True or False: Competition occurs between plants that use the
same resources.
Answer:
True
Explanation: