The placenta and umbilical cord act as a life support system. What role do they play in the healthy development of the fetus?
Answer:
It attaches to the wall of the mother's uterus, and the umbilical cord extends from it, connecting to the baby. It is the baby's life support system and breathing organ while in the womb. The placenta allows oxygen and nutrients to move from the mothers blood to the fetus' blood.
Help if you can no links please
What happens at a cell cycle checkpoint?
Answer:
If the checkpoint mechanisms detect problems with the DNA, the cell cycle is halted, and the cell attempts to either complete DNA replication or repair the damaged DNA. If the damage is irreparable, the cell may undergo apoptosis, or programmed cell death 2.
Explanation:
Hello! could someone please do a 4 sentence quark poem
Answer:
Quark is a character in the television series Star Trek: Deep Space Nine.
Quark developed a few strong friendships during his stay on Deep Space Nine.
The Ferengi have business deals throughout the galaxy; Quark is no different.
For vegetarians, soft cheeses like cream cheese and quark do not contain any rennet at all.
Explanation:
Organisms such as yeast can reproduce through mitotic division. During this type of reproduction, nondisjunction is possible.
True
False
I need a small text (about 50 words) for the human brain.
Answer:
The human brain is the command center for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles. The human brain has the same basic structure as other mammal brains but is larger in relation to body size than any other brains.The largest part of the human brain is the cerebrum, which is divided into two hemispheres, according to the Mayfield Clinic. Underneath lies the brainstem, and behind that sits the cerebellum. The outermost layer of the cerebrum is the cerebral cortex, which consists of four lobes: the frontal, parietal, temporal and occipital. [Nervous System: Facts, Functions & Diseases]
Like all vertebrate brains, the human brain develops from three sections known as the forebrain, midbrain and hindbrain. Each of these contains fluid-filled cavities called ventricles. The forebrain develops into the cerebrum and underlying structures; the midbrain becomes part of the brainstem; and the hindbrain gives rise to regions of the brainstem and the cerebellum.
Explanation:
Can someone tell me if it’s correct
Answer:
yes ur right
Explanation:
A student claims that the only difference between prokaryotic cells and eukaryotic cells is that
eukaryotic cells have a nucleus, but prokaryotic cells do not. What is wrong with this claim?
The description of the cell types is incorrect.
Prokaryotic cells have a nucleus, and eukaryotic cells do not.
The description of the cell types is incorrect. Both prokaryotic and eukaryotic cells have a nucleus.
There is another difference between the cell types. Eukaryotic cells have membrane-bound organelles, but
prokaryotic cells do not.
There is another difference between the cell types. Eukaryotic cells have a cell membrane, but prokaryotic
cells have a cell wall instead.
Explanation:
Eukaryotic cells:
• There is a well defined nucleus
• They are membrane bounded cell organelles like chloroplast, golgi bodies, mitochondria.
Prokaryotic cells:
• The nucleus are not well defined
• Cell organelles are not bounded by membrane
3. What is a type of asexual reproduction that com-
monly occurs in many species of unicellular pro-
tists? (1) external fertilization (2) tissue regenera-
tion (3) binary fission (4) vegetative propagation
Answer:
In fission (or binary fission), a parent separates into two or more individuals of about equal size. This type of reproduction is common among single-celled organisms including bacteria, archaea, and unicellular eukaryotes, such as protists and some fungi. The single cell divides into two daughter cells.Aug 17, 2016
Explanation:
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Describe the Lytic cycle.
No dam links
Answer: here ya go
Explanation: The lytic cycle is one of the two cycles of viral reproduction
Answer:The lytic cycle (/ˈlɪtɪk/ LIT-ik) is one of the two cycles of viral reproduction (referring to bacterial viruses or bacteriophages), the other being the lysogenic cycle. The lytic cycle results in the destruction of the infected cell and its membrane.
Explanation:
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Answer:
Proteins.
Explanation:
Genes contain instructions to assemble amino acids in proteins.
using the graph, the temperature seasonal force from the other Forest biomes. choose all the apply
A) the temperature seasonal Forest averages 100 to 200 cm rainfall/year
B) the temperature seasonal Forest is cooler and wetter than the tropical rainforest
C) the temperature seasonal Forest has warmer average temperatures than the Boreal forest
D) the temperature seasonal rainforest has similar temperatures but less rain than the temperate rainfores
E) the temperature seasonal rainforest has similar rainfall to the Boreal and tropical seasonal rainforest, but is much warmer than either one
Answer:
The correct answer is - A and C,
Explanation:
According to the graph, the following conditions are matched correctly with the temperature seasonal forest with other biomes:
The temperature seasonal forest has the precipitation range from 50 cm to 250 cm rainfall per year approximately. The average rainfall from this would be 150 cm/year or between 100 to 200 cm per year.
B. the temperature seasonal forest has a temperature between 15 degrees Celsius to 20 degrees celsius which is warmer than the boreal forest that has a temperature between 0 to 15 degrees Celsius approximately.
Answer:
A, C, D
Explanation:
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Answer: 1. chemical weathering
2. mechanial weathering
3. Chemical weathering
4. I believe mechanical??
If theses are not right, I'm sorry for the wrong answers
Explanation:
Answer:
I dont even know-
Explanation:
Which explanation is best supported by the numbers in the chart?
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Overhunting of lion and cheetah populations has led to a decline in the food source population.
Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.
Answer:
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
The decrease in zebra population also decreases the population of the predator lion and cheetah because both predators depends on zebra for their survival. Both predators used zebra as a source of food for their growth and survival so if there is high availability of zebra so the population of Lions and cheetah also increases while on the other hand, if there is decrease in zebra population, the population of lion and cheetah also decreases because of less available food for them.
Answer:
B) The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
2021 edge :)
What is the answer to this?
Answer:
1.84 × [tex]10^{8}[/tex]
Explanation:
(2.0 × [tex]10^{8}[/tex])-(1.6 × [tex]10^{7}[/tex])
we need to make the powers the same in order to minus
(2.0 × [tex]10^{8}[/tex])-(0.16 × [tex]10^{8}[/tex]) →1.84 × [tex]10^{8}[/tex]
Plants produce oxygen which animals use. Animals produce carbon dioxide which plants use. Predict the most likely outcome if airborne pollution blocked the sun’s rays so significantly that the percentage of living plants was decreased by 95%.
A. Plants would quickly evolve to consume a mixture of oxygen and carbon dioxide
B. Animals would quickly evolve to begin using carbon dioxide
C. The atmosphere would fill with carbon dioxide, and animals would begin to die.
D. The atmosphere would fill with oxygen, and animals would begin to die.
Answer:
C
Explanation:
A can’t happen because there are barely any plants
B can’t happen because Animals need Oxygen to breathe
D won’t happen due to lack of plants
Can someone name and explain each lymph organ?
Answer:
The lymphatic system consists of all lymphatic vessels and lymphoid organs. For example, the lymph nodes, spleen, thymus as well as the lymphatic tissue found in the small intestine (Peyer’s patches) and throat (adenoid tonsils, palatine and tubal tonsils), to name a few, all represent lymphatic organs.Hence, rather than representing a single organ, the lymphatic system comprises a circulatory network of vessels and lymphoid tissue and cells in every part of the body. It works together closely with the blood-producing (haematopoietic) system in the bone marrow, thereby playing a vital role in immune responses to protect the body from various pathogens. Also, the lymphatic vessel network helps transporting nutrients and waste products in the body.
Answer:
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Explanation:
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If a recessive trait is expressed in an organism’s phenotype, what can you determine about its genotype?
a. Both alleles in the genotype are recessive.
b. At least one allele in the genotype is recessive.
c. You cannot determine anything about the organism’s genotype.
d. Both alleles in the genotype are dominant.
Which of the following correctly describes how DNA contributes to the traits that appear in offspring? A) DNA contains the instructions for building RNA, which influences traits. B) DNA contains the instructions for building proteins, which create the physical traits of offspring. C) DNA contains the instructions for building carbohydrates, which are responsible for the physical traits of offspring. D) DNA contains the instructions for building enzymes, which catalyze chemical reactions for the traits of offspring.
DNA attributes to the genotype preference to the individual. DNA contains the instructions for building RNA, which influences traits. The correct statement is answer A.
What is the full form of DNA ?DNA stands for deoxyribonucleic acid.
DNA contains the orders that are needed for any organism in order to develop, survive as well as reproduce. To carry out these duties, DNA sequences are needed to be converted into messages which can be used to produce proteins in which are the complex molecules that are doing most of work in our body.
Since we have two pairs of chromosomes and we also have two pairs of genes in which one is from our father and one is from mother. These pairs of genes then determine certain physical features or traits.
Learn more about DNA at :
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Answer:
a hope it helps make brainlliest ty
Explanation:
make free póínts again please
Put the following in order describing the process of using geothermal energy to create energy.
= Heat is collected from the Earth
= Steam turns a turbine.
= Generators produce electricity.
= Heat is used to change water into steam.
Answer:
1. heat is collected from the earth
2. heat is used to change water into steam
3. steams turns a turbine
4. generators produce electricity
Explanation:
What prevents a lake or ocean from freezing solid?
Answer:
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).
Explanation:
What are some potential solutions to the problems Pavan identifies?
Answer:
below
Explanation:
Waste disposal; We need to recognize the benefits of nature and start preserving nature.
Black fur (B) is dominant and white fur (b) is recessive in mice. What are the possible offspring of two black mice (Father = Bb and Mother = Bb) bred together? Think of Mendel's F2 generation.
Answer:
BB, Bb, Bb, bb
Explanation:
by performing a punnet square you will see that these are the possible outcomes. if you need me to go into more detail I will try my best to list the genetic makeup below:
BB: 25%
Bb: 50%
bb: 25%
White: 25%
Black: 75%
Chapter 1 Question: Why didn't the plants and animals in the biodome have
enough energy storage molecules?
Include at least 3 ways that illegal fishing impacts the environment and descriptions
Answer:
Goodluck. I hope I helped
Explanation:
Oceans support the livelihoods of an estimated 520 million people who rely on fishing and fishing related activities, and 2.6 billion people who depend on fish as an important part of their diet. But Illegal fishing is threatening the food supply of coastal communities as fish populations decline due to overfishing in areas fishers are not permitted to access. Addressing illegal fishing will positively contribute to the equitable growth and empowerment of the people who rely on oceans for food and income.
Outline the process of the Carbon Cycle.
Answer:
Carbon Cycle Definition
Carbon cycle is the process where carbon compounds are interchanged among the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere of the earth.
Carbon Cycle Steps
Following are the major steps involved in the process of the carbon cycle:
Carbon present in the atmosphere is absorbed by plants for photosynthesis.
These plants are then consumed by animals and carbon gets bioaccumulated into their bodies.
These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere.
Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.
These fossil fuels are then used for man-made activities, which pumps more carbon back into the atmosphere.
Hope it helps!!!
The Rio Grande River separates Mexico from Texas.
What most likely created the riverbed?
A.glaciers
B.plate collisions
C.volcanoes
D.water erosion
Answer:
d I think or b?
Explanation:
water could cause it to form a river and spread over time
GVC – Understand how humans depend on and affect natural resources.
Learning Targets:
ESS4.1 – Construct an explanation for how the availability of natural resources, the occurrence of natural hazards, and changes in climate affect human activity.
ESS4.2 – Use computational thinking to explain the relationships between the sustainability of natural resources and biodiversity within a system.
ESS4.3 – Design solutions for developing, managing, and utilizing energy and mineral resources based on cost benefit rations on large and small scale
ESS4.4 – Design solutions for a major global or local environmental problem based on one of Earth’s systems.
Answer:
Hope It Help
Explanation:
That's all I know
which involves producers, consumers, and decomposers?
the water cycle
nitrogen fixation
evaporation
the carbon and oxygen cycles
Infants are born with a number of instinctive reflexes.
True
False
Answer:
True
Explanation:
:D