Answer:
In the case of the algae, each individual cell is responsible for absorbing its own water. This makes the algae nonvascular compared to the highly vascular plant species. In this connection, algae also lack several key structures that are normally present in ordinary plants like the leaves, roots and stem.
Algae are a group of aquatic organisms with autotrophic metabolism that are made up of eukaryotic cells and we can find unicellular or multicellular individuals.
Some characteristics of algae cells are:
• Cellular organization is eukaryotic (with the exception of blue-green algae), that is, they have a nucleus delimited by a double membrane, mitochondria, chloroplasts, endoplasmic reticulum, Golgi complex and lysosomes.
By definition, this type of cell is one that has a nucleus in which genetic material is stored. Compared to prokaryotic cells, eukaryotes have a large genome.
• The cell wall is made up mainly of cellulose and glycoproteins.
• In the algae cells we can find different reserve substances produced by metabolism.
The reserve substances are mainly starch, although we also find chrysolaminarin, laminarin, mannitol and paramilion in the different groups.
These substances form granules that are dispersed in the cell cytoplasm, in chloroplasts or in pyrenoids.
• They have structures of locomotion called flagella.
In different groups of algae, these organs vary in both number and shape, however, they typically present two flagella or multiples of two.
Therefore, we can conclude that algae are unicellular or multicellular photosynthetic organisms endowed with nucleus, cell wall, flagella and reserve substances.
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energy needed to get a reaction started is called ?
Answer:
Activation Energy
Explanation:
Hope that helps :)
The origin of a muscle is generally:
ОА.
The stable and proximal attachment.
B. The stable and distal attachment.
O C.
The moveable and distal attachment.
D.
The moveable and proximal attachment.
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Answer:
Alright. I think I understand. Here's what you need:
PACIFIC, PACIFIST , PACIFY , PAIN-FREE, PAINLESS, PAINLESSLY, PAL , PALATABLE, PALATE, PALATIAL, PALLY, PALPABLE, PAMPER, PAMPERED, PAMPEREDLY, PAMPEREDNESS, PAMPERS, PANORAMIC, PAR EXCELLENCE, PARADIGM, PARADISE, PARADISIAC, PARADISIACAL, PARAGON , PARAMOUNT , PARD , PARDON, PARENT, PARENTAL, PARENTALLY , PARNASSIAN, PARTICIPANT, PARTICIPATION, PARTICIPATIVE, PARTICULAR , PARTICULARLY , PARTISAN , PARTNER , PASSION, PASSIONATE, PASSIONATELY, PASSIVE, PATERNAL, PATERNALLY , PATHFINDER, PATIENCE, PATIENT , PATIENTLY, PATRIARCH, PATRIOT, PATRIOTIC, PATRON, PEACE , PEACE OF MIND, PEACEABLE, PEACEABLY , PEACEFUL, PEACEFUL WORDS, PEACEFULLY, PEACEKEEPER , PEACEKEEPERS, PEACH, PEACHY, PEAK , PEARL, PEER , PEERLESS, PENETRATING, PEP , PEPPED, PEPPINESS, PEPPING, PEPPY, PEPS, PER MALICIOUS, PERCEPTIVE, PERCEPTIVELY , PERCEPTIVENESS, PERFECT, PERFECT COMBINATION, PERFECTION , PERFECTIONIST, PERFECTLY , PERFORMER, PERKINESS, PERKY, PERMALICIOUS, PERMANENT, PERMISSIBLE, PERMISSIVE, PERMISSIVELY, PERSEVERANCE, PERSEVERANT, PERSEVERE , PERSEVERING, PERSEVERINGLY , PERSISTENCE, PERSISTENT, PERSISTENTLY , PERSONABLE, PERSONAGES, PERSONAL GROWTH, PERSONAL-GROWTH, PERSONALITY , PERSONALIZED, PERSONALLY , PERSPECTIVE , PERSPICACIOUS, PERSPICACIOUSLY, PERSPICUOUS, PERSPICUOUSLY , PERSUASIVE, PERSUASIVELY, PERT, PERTINENT, PERTLY , PET , PETITE, PETRICHOR, PHENOMENAL,
Explanation:
Hope I've helped! :)
Which of the following is not an example of mechanical control of nonnative species?
a.
pulling
b.
inspections
c.
net barriers
d.
mowing
Answer:
it's A
Explanation:
Answer:
A. PULLING
Explanation:
Edg 2020
Which describes a way that water cycles through organisms? O A. Waves collide onto a beach. B. A plant is eaten by an animal. C. Rain falls from clouds. O D. A rock breaks in a rainstorm.
Answer:
B.) A plant is eaten by an animal.
which would a scientist most likely examine to locate gene mutations?
Answer:
Single base pair mutations can be identified by any of the following methods: Direct sequencing, which involves identifying each individual base pair, in sequence, and comparing the sequence to that of the normal gene.
DNA is the molecule which is most likely to be examined to locate gene mutations. Thus, the correct option is A.
What are Gene mutations?Genetic mutations are the changes to the DNA sequence which happen during the process of cellular division when the cells make copies of the DNA molecules. The DNA molecule tells body how to form and function well.
Genetic mutations are the changes which could lead to genetic conditions such as cancer, or they could help the humans to better adapt to their environmental conditions over a period of time.
Mutations can be of many different types, such as substitution, deletion, insertion, and translocation of the genetic sequence.
Therefore, the correct option is A.
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What are three functions all cells perform
Answer: Energy Generation
Molecular Transport
Reproduction
Explanation:
Energy Generation-Living cells exist in a perpetually active biological state. ...
Molecular Transport - Each cell is surrounded by a membrane that delineates its boundaries and acts as a gatekeeper, controlling the movement of molecules into and out of the cell. ...
Reproduction-Living cells exist in a perpetually active biological state. All cells require energy to conduct the activities necessary to stay alive
PLEASE PUT IN YOUR OWN WORDS
The components of blood can be separated by spinning them at high speed.
Figure I shows a tube of blood that has been separated in this way.
Figure 1
substance X
white blood cells and platelets
red blood cells
- Identify the substance labelled X.
Answer:
Plasma
Explanation:
We don't have the figure, but I think the answer is probably plasma.
Blood plasma is the fluid that blood cells are suspended in. When blood is spun at high speed, the cells separate away from the plasma into different layers because of their different weights and shapes.
Plasma is liquid portion of blood. It transports nutrients and wastes and maintains homeostasis.
Cells that actively produce proteins will contain large numbers of?
Answer:
Mitochondria
Explanation:
Because mitochondria is the power house of the cell, hence it provides energy.
What is the diffrence between type 2 and type 1 diabietes
Answer:
People with type 1 diabetes don't produce insulin. You can think of it as not having a key. People with type 2 diabetes don't respond to insulin as well as they should and later in the disease often don't make enough insulin. You can think of this as having a broken key.
Water molecules are polar, which give water its unique properties. One important property is water is the universal ________
A. Solvent
B. Drink
C. Liquid
D. Solute
Answer:
A. solvent
Explanation:
Its called the universal solvent because its capable of dissolving more substances than any other liquid.
What type of cell transport is shown in the figure below?
Answer:
facilitated diffusion
In order for a new species to develop, there must be a change in the
А) migration patterns of a population
B) genetic makeup of an existing species.
С) rate of succession in the environment.
D) temperature of the environment.
Answer:
its B, have a good day
Explanation:
The diagram shows the alignment of the sun, the moon, and Earth.
13. Which best explains why low tides are happening at locations 2 and 4?
Group of answer choices
A. Earth’s gravitational pull on the sun
B. the moon’s gravitational pull on Earth
C. Earth’s gravitational pull on the moon
D. the moon’s gravitational pull on the sun
Answer:
I think the answer is c sorry if I'm wrong :(
1) Explain what a covalent bond is.
Answer:
its a chemical link between two atoms or ions in where the electron pairs are shared between them :)
Explanation:
Jill is preparing to cook a family dinner, and she begins by gathering ingredients for the
main course and dessert. She realizes that most ingredients go through both physical
and chemical changes as they cook.
One of the ingredients for her main course undergoes physical changes. Which of the
following is a physical change?
boiling water
cooking eggs
O grilling hamburgers
O baking bread
Answer:
Boiling water
Explanation:
Boiling water is an example of physical change as it does not cause any change in the chemical composition of water.
What are physical changes?Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.
Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.
They involve only rearrangement of atoms and are often characterized to be changes which are reversible.
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What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau? a. They evolved separately as they moved north and became two separate species. b. The original species died off, but the ones that were able to adapt to a northern climate evolved into a new species. c. As a whole the species was able to adapt to a colder climate, but no significant changes occurred. d. They were unable to adapt and evolve to ensure their survival and became extinct. Please select the best answer from the choices provided A B C D
Answer:
The correct answer is - option A. They evolved separately as they moved north and became two separate species
Explanation:
Greenish warbler is a leaf warbler present in many regions in the world and shows migration in winters in the Indian region. The main region of the migration is Tibetan Plateau.
They migrated from the southern part of these birds range and moved north and evolved separately from the main species and become two distinct species due to their geolocation and environment change.
Answer:
option A
Explanation:
EDGE2020
How might this change affect the structure and function of the protein?
Answer:
Explanation:
Three-dimensional folding of a protein is due to interactions among the R groups of the amino acids. Cysteine has a sulfhydryl group, which may form a disulfide bridge with another part of the polypeptide chain. Valine has no sulfhydryl group and is nonpolar, which will affect how the polypeptide will fold.
Answer number 12please
Answer:
A. Ingestion ->Digestion ->Egestion
Which structures are not found in simple leaves?
What are two ways that variation can be described?
Answer:
varyatio of somthing and multiple varitons of it
Explanation:
The two ways that variation can be described are meiosis and evolution, because in the meiosis process, sexual reproduction occurs, and in the evolution process, changes in animals are seen and variation is observed.
What is variation?When sexual reproduction occurs, there is variation seen because in meiosis genes cross over and recombinate, resulting in variation in offspring from their parents, but it is absent in asexual reproduction that is caused by mitosis or binary fission because here there is no variation in the offspring and the parents. The process of evolution introduces variation because, along with environmental factors, the animal genes are influenced too.
Hence, the two ways that variation can be described are meiosis and evolution, because in the meiosis process, sexual reproduction occurs, and in the evolution process, changes in animals are seen and variation is observed.
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Match each tool with its influence on science
Answer:
xray - allows scientists to see dense structures
Microscope - view things that cannot be seen with the naked eye
Telescope - stars, planets and black holes
Ultrasound - see inside the body in real time
Explanation:
Xrays shows highlights dense structures within the body (bones). But is not in real time, usually there images that are captured and reviews later.
Microscope - the clue is in the name, think micro= tiny! Therefore cant be seen by the naked eye. The "scope" part of the word means to look at or observe. So put them together and you get to look at or observe tiny things.
Telescope - the first part of this word "tele", means something far away or at distance. Which gives a clue at what it does, add on the "scope" meaning of to look at or observe and you get; to look at or observe something that is far away.
Ultrasound - this is what is used to monitor the health of babies when they're still developing. It can be seen in real time.
X-rays enable researchers to observe dense formations. View objects using a microscope that is invisible to the eye. Telescope: black holes, planets, and stars see into the body in real-time using ultrasound.
What is the tool microscope's influence on science?X-rays depict the body's dense internal architecture (bones). But it's not in real-time, typically, pictures are taken and then looked at afterward.
The name of the instrument, "microscope," gives it away—think small! as a result, not visible to the eye. The word "telescope" refers to anything far out or remote in its first half.
When a baby is still developing, their health is monitored using ultrasound technology.
Therefore, view objects using a microscope that is invisible to the eye.
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Select the correct answer for the blanks.
What are the differences encountered in the photosynthetic-respiratory pathway of the carbon cycle, as it exists on land and in the ocean?
In a marine environment, the role of plants is performed by _______(phytoplankton, zooplankton, microorganisms) and an additional flux of carbon into the oceans is through _______(aeration, diffusion, deposition).
Answer:
phytoplankton; diffusion
Explanation:
"Phytoplankton" takes the role of the plant in the marine environment because it consists of tiny plants that contain chlorophyll–just like the terrestrial plants. This provides food to many aquatic animals in the ocean.
When it comes to carbon cycle, carbon dioxide from the atmosphere is being diffused into the ocean by dissolving it. The carbon in the ocean turns into an organic matter through the process of photosynthesis. The ocean is said to have more carbon compared to the atmosphere because many marine animals use it for survival.
What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas
Answer: Oxygen
Explanation: Oxygen is primarily produced by photosynthesis.
Answer:
oxygen gas
Explanation:
during the process of photosynthesis in plants the final product is oxygen gas
PLZ ANSWER FIRST PERSON TO ANSWER GETS BRAINLIST
Describe the structure of an amoeba .....in short form
Answer:
Structure of amoeba primarily encompasses 3 parts – the cytoplasm, plasma membrane and the nucleus. The cytoplasm can be differentiated into 2 layers – the outer ectoplasm and the inner endoplasm. The plasma membrane is a very thin, double-layered membrane composed of protein and lipid molecules.
Explanation:
:)
Answer:
The structure of amoeba is primarily composed of 3 parts – the cytoplasm, plasma membrane, and the nucleus.
Explanation:
Hope this helps!
termites are insects that feed on wood, which contains cellucose. scientist have observed that some termite species prefer wood that has been attacked by fungi. Construct an explanation for this observation
Answer:
In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.
RESULT
In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.
Explanation:
Hope this helps
Crown me as brainliest:)
A scientific theory states that something will happen. _______________
True or FALSe ?
Answer:
False
Explanation:
It state how or why something will happen.
Which macromolecules provides quick energy breakdown?
Answer:
carbohydrates provide quick energy
Explain how a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction
Answer:
As a result of a change in the sequence of nucleotides in a strand of DNA (Deoxyribonucleic acid), the amino acids also change in the final protein which leads to protein malfunction.
Explanation:
As a result of a change in the sequence of nucleotides in a strand of DNA (Deoxyribonucleic acid), the amino acids also change in the final protein which leads to protein malfunction. If insulin does not work correctly, it may not be able to bind to the insulin receptor.
DNA contains genetic information. It has a double helix structure.