Answer:
That is C.) blastocyst. I hope this helps! :)
During pregnancy after fertilization, the embryo gets implanted in the uterine wall. So the correct option is D.
What is an embryo?The embryo is the stage of an animal's early development when it is within an egg or a mother's uterus. When referring to an unborn person, the phrase is used up to the end of the seventh week after conception; starting with the eighth week, the term "fetus" is used.
When an ovum and a sperm unite to form a sexually reproducing organism, the outcome is a zygote, or fertilized egg, which goes through a series of divisions known as cleavages as it travels down the fallopian tube. A hollow ball known as a blastula is created by the cells following many cleavages.
In most animals, the blastula adheres to the uterine lining, causing the placenta to develop and begin supplying the developing fetus with nourishment from the mother. The yolk feeds the embryo in lower animals.
The embryo differentiates into three types of tissue through the process of gastrulation: the ectoderm, which produces the skin and nervous system; the mesoderm, from which connective tissues, the circulatory system, muscles, and bones develop; and the endoderm, which produces the digestive system, lungs, and urinary system.
Therefore the correct option is D.
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when do humans use anaerobic respiration
Answer:
Anaerobic respiration in humans occurs in muscles during strenuous exercise when sufficient oxygen is not available.
Explanation:
A student placed 20 ml of different sweet drinks in seven identical flasks She then added 5 grams of yeast to each flask Each flask was then covered with identical balloons as shown below
Balloon size increases as the sugar increases in the solution.
As the yeast feeds on the sugar or sugar solution which produces carbon dioxide gas. Due to presence of balloon, there is no place to go so gas slowly fills the balloon. Carbon dioxide gas produces from yeast fills thousands of balloon.
That solution which have high amount of sugar in it will leads to higher concentration of carbondioxide gas in the balloon so we can conclude that balloon size increases as the sugar solution increases.
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why is a floating ice layer important to aquatic organisms?
Answer:
It helps life survive on Earth.
Explanation:
Since water ice floats, it helps life survive on Earth. This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen.
What tells a muscle when to contract?
Answer:
What tells a muscle when to contract?
Explanation:
(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.
(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.
(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.
Answer:
The nervous system generates a signal, which triggers a muscle to contract
Explanation:
how are nebule and stars related
Answer:
Is a interstellar cloud of 90% hydrogen, 10% helium , and trace amounts of heavier elements. Nebula are the basic building blocks of our universe, and contain the elements from which stars and solar systems are made.
Is a process that tells cells to stop dividing if they touch each other
Answer:
contact inhibition.
Explanation:
This is how healthy cells know when to stop dividing. and a process called contact inhibition is when normal, healthy cells are touching other cells on all sides, they have a red light in the cell cycle and do not divide
I Hope This Helps!!!!
Answer:
cell cycle
Explanation:
The process then repeats in what is called the cell cycle. Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing. I don't understand what you are saying, but hope this helps!
A hormone signals through a G protein-coupled receptor as shown in the diagram. After the production of IP3, which of these events will MOST quickly stop the transduction of the signal?
Answer:
a stop codon is an important part in protein synthesis because it signals the halt of the production of protein when the needed protein is already formed
Explanation:
Why did Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation?
Answer:
Mendel formulated the law of segregation as a result of performing monohybrid cross experiments on plants. The specific traits that he studied exhibited complete dominance. Not all types of genetic inheritance, however, show total dominance. In incomplete dominance, neither allele is completely dominant over the other.
Explanation:
Hope this helps.
Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.
What is Law of Segregation?When an organism produces gametes, each gamete receives only one gene copy, which is chosen at random. This is defined as the law of segregation. A Punnett square can be used to predict the genotype (allele combination) and phenotype (observable traits) of the offspring from a genetic cross.
This law of segregation, called the second law of inheritance, states that during meiosis cell division (gamete formation), pairs of alleles separate from each other so that only one allele is present in each gamete.
Mendel formulated the law of segregation as a result of experimenting on monohybrid crosses on plants. The specific traits he studied showed complete dominance. However, not all types of genetic inheritance show total dominance. In incomplete dominance, neither allele is completely dominant over the other.
Thus, Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.
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An important difference between cellular respiration and photosynthesis is that when cellular respiration begins, glucose molecules are split. However, when photosynthesis begins ADP molecules are split. water molecules are split. oxygen molecules are split. carbon dioxide molecules are split.
Answer:
B) WATER MOLECULES ARE SPLIT
Explanation:
just trust me Okay
Answer:
B - water molecules are split
Explanation:
did it on edge
what is biology? and types?
Answer:
hiii
i am sry
but dont ask why sry plz accept it
Explanation:
Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.
https://www.britannica.com › science
biology | Definition, History, Concepts, Branches, & Facts | Britannica
Which of the following sequences best illustrates primary succession in a forest?
A. forest fire – pioneer species – willow - hardwood
B. bulldozed trees – shrubby weeds – cottonwoods – pine trees
C. exposed rock – lichens – weeds – shrubs – hardwoods – stable forest
D. flood – mosses – ground cover - shrubs
Answer:
C.
Explanation:
Primary succession is where it is a new area, not one where the area was simply made uninhabitable which gets rid of A, and B. C goes into more detail as to what actually happens as lichens consume the rocks while weeds come in afterwards due to the soil being formed since the lichen has broken down the rocks. Shrubs follow because enough soil has formed. followed by hardwoods and trees cause the roots of previous plants have formed enough soil for larger organisms and eventually a forest
The type of cells that do not have a nucleus are known as?
Answer:
PROKARYOTES are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure.
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Why do bacteria numbers start to decline when treated with antibiotic C but then begin to increase as time goes on?
Question 18 options:
A) Some bacteria with resistance to antibiotic C were selected for over time.
B) Additional bacteria were added to the experimental group.
C) Antibiotic C degraded and thus was no longer effective.
D) This is the normal course of bacterial growth no matter which antibiotic is applied.
Answer:
A.
Explanation: :)
The stages of the protozoane cycle are
8- Most gymnosperms have reproductive structure called cones
true
false
Answer:
.
Explanation:
HELP
The carbon cycle is a cycle among the carbon reservoirs. What is a carbon reservoir and what are at least 3 examples?
Answer:
The reservoirs are the atmosphere, the terrestrial biosphere (which usually includes freshwater systems and non-living organic material, such as soil carbon), the oceans (which includes dissolved inorganic carbon and living and non-living marine biota), and the sediments (which includes fossil fuels).
Explanation:
Hope this helps...
In estuary is ____
A a fresh water biome
B an area with a low concentration of minerals and nutrients
C characterized by deep water
D an ecotone
Answer:
The answer to your question is D an ecotone
Explanation:
An ecotone is the area of transition between two different biomes so ecotone is the boundary between two different habitats.
Ionic compounds form because charges attract
The formation of ionic compounds is due to when opposite charges attract and like charges repel, the attraction of opposite charges makes ionic bonds in the compounds.
What are ionic bonds?It is the kind of bonding in which electrostatic attraction happens, through which ionic compounds are formed.
Ionic bonds set the chemical connection in which one atom loses valence electrons and which are gained by another atom, the atoms involved in this connection form the more stable noble gas electrical state.
This bonding is different from covalent bonding, in covalent bonding there is sharing of the pairs of electrons making it more strong than ionic.
Therefore, ionic compounds form because opposite charges attract each other, leading to ionic bonding.
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I need help now please
Answer:
c i think
Explanation:
sorry if im wrong
How force affect the motion of blood during a heartbeat
Answer:
bidhdjdbdidvdinsbdjdvsjdishdhdidbsjdbjsbdidbdkd
6-The Cavendish banana--the bright yellow one we have all seen and probably eaten is not as tasty as the wildly grown Gros Michel variety. So, why did it become the more popular and traded or sold banana?
Answer:
The Gros Michel variety is less known, smaller, and some people think it probably has unknown toxins in it
Explanation:
Answer: A
Explanation:
plz help and no links
Multicellular plants and animals have organs to perform specific functions.
What do eukaryotic cells have to perform specific functions?
A.cytoplasm
B.ribosomes
C.organelles
D.vacuole
Answer:
Organelles
Explanation:
Answer:
organelles
Explanation:
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true or false
ATP is the primary source for energy for cells.
Answer:True
Explanation:The mitochondria is the powerhouse of the cell and it converts chemicals that you get from food into ATP. ATP is then shipped out and used for energy. Hope this helps:D
1. When did the first weather map come into being?
Answer:
1816
Explanation:
The earliest weather charts were made by collecting synchronous weather reports by mail. However, it was not until 1816 that German physicist Heinrich Wilhelm Brandes created the first weather maps, which were hand drawn and reconstructed from data collected in 1783.
Answer:
1816
Explanation:
The earliest weather charts were made by collecting synchronous weather reports by mail. However, it was not until 1816 that German physicist Heinrich Wilhelm Brandes created the first weather maps, which were hand drawn and reconstructed from data collected in 1783.
HELP ME OUT PLEASE!!
Based on the element square shown above, how many neutrons would an atom of Boron usually have?
5
6
10
11
The answer is 6 neutrons
When would the heart of a developing human begin to beat? (1 point)
between 8 to 12 weeks
between 16 to 20 weeks
between 4 to 8 weeks
between 12 to 16 weeks
Answer:4 to 8 weeks
Explanation:
Which statement best explains the relationship between producer and consumers in terms of energy?
Consumer produce glucose that producer's use for energy
Consumers convert carbon dioxide into energy
Consumers provide energy for producer to undergo aerobic respiration
Consumers convert glucose from producers into ATP
Explanation:
no C. Consumers provide energy for producer to
underground aerobic respiration
A pyramid of biomass shows the mass of all the organisms in each trophic level of an ecosystem. Look at the biomass pyramid to the right. Based on the data shown, how many kilograms of plant matter would be needed to support the other trophic levels in this ecosystem?
Answer:
90,000
Explanation:
It would be 90,000 because it is a pattern, 90, 900, 9,000, and 90,000.
Infer why scientists utilize peer reviews
Answer:
Within the scientific community, peer review has become an essential component of the academic writing process. It helps ensure that papers published in scientific journals answer meaningful research questions and draw accurate conclusions based on professionally executed experimentation.
Explanation:
What is the role of tRNA during translation?
O A. It moves the codons into a chain.
B. It provides the code for the protein.
O C. It translates from amino acids to nucleic acids.
O D. It moves the amino acids into a chain.
Answer:
Role of tRNA in translation
tRNA is responsible for bringing amino acids to to developing chain amino acids on sequence of mRNA through ribosomes.
Explanation:
Answer:
it moves the amino acids into a chain
Explanation:
yourrage told me