Answer:
No cell wall only plasma membrane.
Explanation:
The cells of animals lack wall and chlorophyll
Answer:
no cell wall, only plasma membrane
no chlorophyll or chloroplasts
cleavage furrow
Explanation:
Everything else are characteristics of plants cells.
The selection of antibiotic resistant bacteria is an example of:.
The selection of antibiotic resistant bacteria is an example of natural selection.
What is natural selection?Natural selection is the process whereby organisms that are better suited or adapted to their environment have more chance of survival.
Antibiotic resistance is a phenomenon of certain bacteria that gives them an edge over their susceptible counterparts.
Antibiotic resistance is caused by evolution through the process of natural selection.
Therefore, the selection of antibiotic resistant bacteria is an example of natural selection.
Learn more about natural selection at: https://brainly.com/question/9830102
4. Prokaryotes differ from eukaryotes in that prokaryotes
A) have only a nucleus, cell membrane, and cytoplasm
B) have ribosomes and mitochondria
C) have a true nucleus and may have a cell wall
D) lack a true nucleus but may have a cell wall
E) lack DNA but can synthesize proteins
What is the right answer?
Answer:
D
Explanation:
prokaryotes are things like bacterial cells , they have no true nucleus just a long ring of dna.
Eukaryotes are things like animal cells they have a nucleus (opposite of prokaryotes)
Pleas help fast! I am not happy with my grade on this and I'm on my last try!
Answer:
im pretty sure its A and B
PLEASE MARK BRAINLIEST !!!!!!!
The exchange of genetic material between nonsister chromatids is called crossing-over and occurs during which phase of meiosis?.
Answer:
prophase I
Explanation:
during prophase I, and it is the exchange of genetic material between non-sister chromatids of homologous chromosomes
hope this helps
pls mark brainliest
I have 5 mins left please help!!
#1 Which of these events happened earliest in the history of life on Earth?
A. eukaryotic cells with a nucleus
B. skeleton made of bone
C. multicellular organisms, like algae
D. opposable thumbs
#2 Which of these events happened earliest in the history of life on Earth?
A. dinosaurs
B. early animals
C. prokaryotic cells
D. eukaryotic cells
#3 Early life needed which of the following conditions to exist?
A. building block molecules
B. a source of energy
C. instructions
D. all of these were necessary
#4 It is thought that prokaryotes that were good at making ATP began to live inside other prokaryotes that were good at getting glucose. One provided glucose while the other shared its ATP. This formed early mitochondria, and natural selection favored these cells and they diversified to many forms. This idea is called the
A. cell theory
B. endosymbiont theory.
C. mitochondria theory.
D. eukaryotic theory.
Explanation:
4) option B endosymbiont theory
2) option C prokaryotic cells
The ___ is the inner lining of the uterus, facilitates the transport of sperm and prepares for implantation of an embryo. Group of answer choices Fallopian tubes Myometrium Perimetrium Endometrium
Answer:
Endometrium
Explanation:
Based on the food web shown, which organism is the primary consumer?
Answer:
The grass hopper, rabbit, and the slug are primary consumers.
Explanation:
They are all herbavores and at the second lowest part of the food web (the first being the grass
compare and contrast the five types of evidence that support the theory of evolution
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology. The basic idea of natural selection is that a population of organisms can change over the generations if individual having certain heritable traits leave more offspring than other individuals. The result of natural selection is evolutionary adaptation, a population’s increase in the frequency of traits that are suited to the environment. In modern terms, we would say that the genetic makeup of the population has changed over time, and that is one way to define evolution. Evolution leaves observable signs. There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
. Which of the following types of erosion is caused by landslides?
a. Gravity erosion
b. Wind erosion
c. Wave erosion
d. Temperature erosion
e. Flood erosion
Answer:
a. Gravity erosionerosion
Explanation:
Question 6 (1 point)
What 4 body systems are used for CLEANING
YOUR ROOM?
List each body system (4 systems should be
listed) and explain how each system helps the
body when you clean your room.
Here are the body systems we talked about in class. Use this list to help you recall the types of systems
in the body: Muscular System, Skeletal System, Nervous System, Circulatory System, Digestive System,
Immune System, Reproductive System, Integumentary System, Respiratory System, Excretory System
Answer:
The skeletal system:This system controls our bones so we aren't just a blob on the ground. Our bones help keep our important organs intact.
The muscular system works about the same way, it protects your bones so they don't grind against eachother when you move. Your muscles give you the ability to move.
Our organ system is what keeps us alive, you can't clean your room if your dead and if your room is hot you need your skin so you don't overheat and die.
Lastly of course is your respitory system, you need to bring when your moving about. Our ability to breathe gives our blood cells and our heart what they need to keep working.
5. The family tree below shows the trait of having attached earlobes. Having
attached earlobes is recessive, and having detached earlobes is dominant. People
with attached earlobes are shaded in.
B) describe the genotype of the person labeled b.
C) describe the genotype of the person labeled c.
D) could the person labeled d have a recessive allele? Explain.
This can be defined as the variant form of a gene. In this scenario, there are two variants which are dominant and recessive allele.
Both parents have to possess the dominant allele for all the offsprings to also have the dominant trait.
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The breaststroke is started in the dive position in the water
Question 4 options:
True or false
The breaststroke is not started in the dive position in the water. Therefore, the statement is false.
What is breaststroke?The breaststroke is not started in the dive position in the water. It started in a stationary position with the swimmer, which faces forward and floats in the water.
The swimmer then takes a breath followed by the beginning of the stroke by pulling both arms back simultaneously and lifting their head and shoulders out of the water.
The legs are brought together by the swimmer andglides forward before the repetition of the arm and leg movements. It is the butterfly stroke because of the dive position, as the swimmer resurfaces both arms extended above the head to begin the stroke.
Therefore, the breaststroke is not started in the dive position in the water as it is started in a stationary position with the swimmer facing forward and floats in the water.
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When a group of proteins such as interferons and interleukins are released by the t cells, intercellular signals begin the immune response, what is the medical term used for the group of proteins?.
The cytokine describes the group of proteins such as interferons and interleukins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.
What is a cytokine?They are messenger molecules with a glycoprotein structure, whose lifetime is short and generally secreted in cascades.
They are produced by different activated cells, responsible for innate and/or acquired immunity, and regulate the immune and inflammatory response.
Therefore, we can conclude that the cytokine describes the group of proteins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.
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Use the four population pyramids above to answer the question. Which country's population is
significantly decreasing? Sb
O Brazil
O Japan
O Afghanistan
O US
When arginine is added to a culture already growing exponentially in a medium without arginine, what occurs?.
Answer:
When arginine is added to a culture growing exponentially in a medium without arginine, what occurs? Growth continues, but the production of enzymes required for the synthesis of arginine ceases
Explanation:
Which of the following is true about acid rain? a. It is more acidic that normal rain. b. It is less acidic than normal rain. c. All rain is acid rain. d. There is no such thing as acid rain. Please select the best answer from the choices provided A B C D
Answer:
A
Explanation:
Acid rain usually has a pH between 4.2 and 4.4, while normal rain has a pH of about 5.6.
If the DNA is GGC ATC CAG, what is the corresponding mRNA?
Answer:
CCG UAG GUC
Explanation:
The complementary mRNA strands for DNA are shown below.
G = C
A = U
C = G
T = A
U = A
Using this, we can conclude that the corresponding mRNA is CCG UAG GUC.
hope this helps!
An astronomer notices increased chances of solar energetic particles in the ionosphere. Who should be notified of this possibility? Select the two correct answers. (1 point)
engineers who control power systems to cities in the affected area
flight operations officers who devise airline flight planes
scientists who are responsible for tracking and maneuvering satellites
computer technicians trying to charge several new computers at a warehouse
You must be notified of this engineers who control power systems for cities in the affected area and scientists responsible for tracking and maneuvering satellites.
What is a solar storm and a solar flare?The sun is a gigantic thermonuclear reactor that eventually fires huge amounts of concentrated radiation in the form of particles in a constant stream called the "solar wind".
A geomagnetic storm can last just a few minutes, or several hours, but the effects of geomagnetic storms can linger in the Earth's magnetosphere and atmosphere for days to weeks. The storm also results in a rapid drop in the strength of Earth's magnetosphere for a period of between 6 and 12 hours. Then the magnetic field gradually recovers over a few days.
Whit this information, we can conclude that you must be notified of this engineers who control power systems for cities in the affected area and scientists responsible for tracking and maneuvering satellites.
Learn more about solar storm in brainly.com/question/24427668
What is the most basic unit of structure
and function?
A. a tissue
B. a cell
C. an organ
D. an organ system
Answer:
a cell is the basic unit of structure and function
Viruses require __________ for growth (to spread).
bacteria
plants
animals
living cells (host)
Answer:
Living cells
Explanation:
Viruses require living cells. Viruses aim to replicate themselves, and cells do exactly that. By injecting their DNA into a living cell, the cell will replicate the virus's DNA and infect other cells, spreading it more and more in the organism.
What natural resources are used to make artificial sweeteners?.
Producers are found on what level of an energy pyramid
Answer:
first/ lowest level
Explanation:
Which of the following is the correct chemical formula for glucose
Answer:
C6H12O6: 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms bonded together making one molecule of glucose
This is an organism that relies on other organisms for its food and energy supply also called a heterotroph
Answer:
Consumer
Explanation:
This is because comsumers rely on eating other organisms for energy. They "consume" other organisms, which is where the name comes from.
differentiate the types of muscle- skeletal, cardiac, smooth
Answer:
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.
Explanation:
Answer:
cardiac muscles perform involuntary muscular movements of the heart, aiding the heart to pump blood throughout the body, while skeletal muscles perform voluntary muscular movements of bones, aiding physical movements of the body such as walking, running, and writing and smooth muscles perform an involuntary muscular movements of internal organs, aiding functions of the body such as digestion, urination, and breathing.
If your small intestine where unwound approximately how long would it be.
It would be about twenty - two- ish feet
Concentrated animal feeding operations that raise hundreds of animals in a single location often use manure lagoons to dispose of the manure. manure lagoons are ponds lined with rubber to prevent the manure from leaking into groundwater or nearby waterways. one pig produces 30 liters of manure each day, and the average feedlot holds 900 pigs. calculate the amount of manure produced by the feedlot after 30 days to determine the minimum capacity needed for a manure lagoon. a faulty manure pond leaks into a nearby lake. describe one effect this leak would have on the organisms living in the lake.
If there is a leakage of the manure pond into the near by river, the growth the nitrates and phosphates in the leak causes an overgrowth of algae leading to eutrophication.
What is a manure?A manure is that which is used to improve the fertility of the soil. It is composed of the nutrients that are required by the soil. We know that each pig produces 30 liters of manure each day, and the average feedlot holds 900 pigs. Hence, each day, 30 * 900 = 27000 litres of manure is produced.
Within a period of 30 days, a total of 27000 litres of manure * 30 = 810,000 litres of manure is produced. If there is a leakage of the manure pond into the near by river, the growth the nitrates and phosphates in the leak causes an overgrowth of algae leading to eutrophication.
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1. *All of the following statements about invasive exotic species are true EXCEPT:
a. They may compete with native species for food.
b. They may prey on native species.
They are generally introduced by human activity.
d. They may be plant or animal species.
e. They tend to have low reproductive rates.
Invasive species are usually competitors, predators, high reproducers, and are mostly introduced by humans activities.
What are invasive species?They are plant or animal species that invade ecosystems.
They are mostly introduced to ecosystems from another ecosystem and once they establish themselves, end up out-competing native species for resources.
Invasive species generally have high reproductive capacity and efficient dispersal mechanisms.
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PLS HELPPP :(((
VOLUME
Why does the first method for determining volume work only for a regular-shaped object?
Will the second method for determining volume work for any object or just an odd-shaped one?
Why?
Is one method of measurement more accurate than the other? Why or why not?
Would the displacement method of measurement work for a cube of sugar?
What about a cork? Why?
What did you find out from this investigation? Be thoughtful in your answer.
.
Answer:
1. Because only regular-shaped objects have a consistent length, width, height, and shape. When dealing with an object composed of differing shapes, you must calculate each portion separately and then add them. For instance, if you have a swimming pool of two depths and want to determine cubic feet, you would have to calculate the volume for each section and then add them.
2. method used to figure the volume of an irregular shaped object Neither measurement is more "accurate" than the other--they simply denote different things. Length is a measurement of the distance between two points in space. The area is a measurement of the surface covered by a given shape.
3. not in the water as the sugar would dissolve if you could find a liquid that sugar does not dissolve in, then it would work
Explanation:
When igneous rock is formed,the size of the rock crystals or grains is primarily dependent on
Answer:
The three factors that influence the textures of igneous rocks are the speed of cooling, the silicate content, and the water content.
Igneous rocks contain randomly arranged interlocking crystals. The size of the crystals depends on how quickly the molten magma solidified: magma that cools slowly will form an igneous rock with large crystals. lava that cools quickly will form an igneous rock with small crystals. When magma cools, crystals form because the solution is super-saturated with respect to some minerals. If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.