Answer:
The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.
Movement of air masses is caused by ____________.
A. conduction
B. throughflow
C. radiation
D. convection
Answer:
D
Explanation:
When wind is related to the movement of warm and cold air masses the type of heat transfer that this represents convection.
Which structure controls what enters and leaves the cell.
what is the word that describes a group of organisms that are so closely related in structures that they can reproduce fertile offspring? |
PLS ANSWER FAST THANKS
Answer:
$exual
Explanation:
A group of organisms that work together to create fertile offspring is call a $exual species. A group of organisms that doesn't have $ex, is called a$exual.
What cross will produce the most pink flowered plants
Answer:
Explanation: So, the answer for this question is going to be 50% and your parent cross is going to be like this Question # two, this is what cross will produce the pinkest flower plants show up and escort to support your answer and the cross that is going to produce the pinkest flower plants is going to be a cross between a wet.
A bacterial cell gives rise to two genetically identical daughter cells by a process known as.
A bacterial cell gives rise to two genetically identical daughter cells by a process known as BINARY FISSION
In order words, binary fission is a special type of ase- xual reproduction which occurs in bacteria and other prokaryotes whereby an organic duplicate its genetic material and then divides into two genetically identical parts.
What are prokaryotes?Prokaryotes are organisms that lack definite nucleus. They do not have true nucleus.
So therefore, a bacterial cell gives rise to two genetically identical daughter cells by a process known as BINARY FISSION
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A hormone is an organ that secretes chemical substances into the bloodstream. Please select the best answer from the choices provided T F.
Answer:
false
Explanation:
a hormone is not an organ that secretes chemical substances into the bloodstream, hence your answer is false
hope that helps! :)
Answer:
False!
Explanation:
A hormone is a chemical substance produced in an organism, but it is not an organ!
The science of naming and classifying organisms is called:.
The science of naming and classifying organisms is called:
Taxonomy
30 points!! imagine you are investigating how camouflage helps an animal to survive. Write out the following components of the experiment.
a) Purpose:
b) Hypothesis:
c) Prediction
d) Describe the basic procedure you would use:
e) How will you collect your data?f) What results would you expect to see from this experiment?
The number of uncamouflaged animals will be far less than that of the camouflaged animals at the end of the experiment.
What is an experiment?An experiment is a detailed study that tends to identify cause and effect relationship.
The hypothesis in this experiment is that camouflage helps animals to survive in their habitat. The predication is that animals that are camouflaged are able to escape predation owing to the camouflage.
The best test procedure is to observe animals that are camouflaged and those that are not camouflaged in the wild for a period of about three months. Observe whether the number of uncamouflaged animals decreased more than that of the camouflaged animals after three months.
At the end of the experiment, it is expected that the number of uncamouflaged animals will decrease far more than the number of camouflaged animals.
The data will be collected using an unmaned drone over the area of study.
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how have microscopes led to the evolution of science?
Approximately how long did it take for the human population to reach 1 billion?.
Answer:
it took all of history until approximately 1803.
Choose all the answers that are characteristics of antibodies.
i. This molecule is produced by white blood cells
ii. A vaccine causes the body to produce these
iii. These are part of the pathogen
iv. These molecules give the body immunity
v. These molecules flag pathogens for destruction
vi. When a virus mutates, this part can change
vii. This molecule triggers an immune response
The characteristics of antibodies include the following:
I. This molecule is produced by white blood cells
ii. A vaccine causes the body to produce these
iv. These molecules give the body immunity
v. These molecules flag pathogens for destruction
Therefore options I, II, IV, and V.
The characteristics of antibodiesAntibodies are the proteins of the immune system that helps in the immune response of the body against invading microorganisms.
The characteristics of antibodies include:
Antibodies are produced by special white blood cells called the B lymphocytes.When antigens of viruses are introduced into the body through the vaccine, it causes the body to produce memory antibodies.The production of antibodies by the memory B cells helps to give the body immunity.Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.Learn more about antibodies here:
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The cells in this diagram
are
Striated skeletal muscle fiber
Answer:
It should be striated skeletal muscle fibers, I believe. Correct me if I am wrong.
Which statement would be used in an argument against the use of human embryonic stem cells for therapy?
O Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
O Embryonic stem cells are limited in their ability to become different types of cells.
O It is difficult to grow embryonic stem cells in laboratory cultures, so they are not a practical choice for stem cell therapy.
O Embryonic stem cells originate in plants, so the likelihood of rejection by a patient's body is high.
The statement 'obtaining embryonic stem cells for use in therapy requires the destruction of embryos' would be used in an argument against the use of human embryonic stem cells for therapy. It is a type of stem cell therapy.
What are embryonic stem cells?The embryonic stem cells are cells obtained from embryos that have the property to divide and specialize into different tissues.
The embryonic stem cells can be differentiated in the laboratory for the development of specific cell lineages.
The therapy using embryonic stem cells involves the use of these types of cells and the destruction of an embryo.
Learn more about embryonic stem cells here:
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The statement that is used in an argument against the use of human embryonic stem cells for therapy is that Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
Are embryos destroyed in a stem cell research?Embryonic stem cell research is one that uses aborted fetuses. There is therefore no link between abortion and human embryonic stem cells.
The Use of embryos for stem cells is known to be an argument that was made against the use of embryonic stem cells as it is one that kills a human blastocyst, and the fertilized egg will not be able to develop into a person.
Learn more about embryonic stem cells from
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What was newton model of the universe?
Answer: newton envisions and infinitely large universe
Explanation:
PLEASE HELP!!!! URGENT
Mutation is a change in the DNA.
Mutations that can be passed on to ________ may result in _________.
Answer:
Offspring, Genetic drift
Explanation:
Hopefully this helps :)
which three events could happen due to deforestation?
Answer:
Fragmentation of forests leads to allopatric speciation.
Animal species evolve differently to suit the environment.
Animal species migrate to different ecosystems.
Explanation:
Does that help you???
Explanation:
1). Fragmentation of forests leads to allopathic speciation
2). Animal species evolve differently to suit the environment.
3). Animal species migrate to different ecosystems.
Many weeds create spiky burrs that attach to an animal's hair or fur. As the animal travels, these burrs fall off, successfully
dispersing the plant's seeds.
Type of relationship:
weeds
animal
:: commensalism
:: mutualism
:: parasitism
.: +
::
-
:: O
Answer:
commensalism
Explanation:
I looked up the definitions and theres no way it could be the others.
What is the role of oxygen in photosynthesis and in cellular respiration?
A Oxygen is used in photosynthesis to produce glucose and is released during cellular respiration.
® Oxygen is released in photosynthesis and used in cellular respiration to produce energy.
© Oxygen is combined with carbon dioxide in photosynthesis to release energy and released from carbon dioxide
during cellular respiration.
Oxygen is released from glucose during photosynthesis and combines with carbon dioxide to produce energy
during cellular respiration.
Some unicellular eukaryotes called what contain chloroplasts?
Answer:
Cell as an organism
Some unicellular eukaryotes, called , contain chloroplasts. Yeasts are unicellular , which are eukaryotes. Other unicellular eukaryotes include and algae.
Explanation:
How does your body normally gather information for your brain
to process?
Answer:
Using information gatherers on your body such as eyes, nose, mouth, tongue, ears, ect.
Explanation:
Answer:
The brain follows signals through the nervous system. The nervous system sends a signal of what we want to do seconds before it happens, to ensure quick reactions. For instance, when we touch a stove, our nervous system already sent the signal seconds ago in an attempt to prevent your skin cells from being burned off. That is why we immediately pull back from intense heat unless we tell ourselves "wait, no!" before the process is over.
I hope this helps! Have an awesome day.
Cancer is the result of uncontrolled cell
growth
It normally starts with mutations to?
Eventually, a
tumar
forms in the body.
Answer:
Proto-oncogene gene
Explanation:
The answer may also be both of the Tumor Represent Genes because even if the mutation of a Proto-oncogene gene occurs the Tumor Represent gene will tell the cell to go through apoptosis before it becomes a problem.
hello humans ~
What are pseudopodia?
A. Vacuole of amoeba
B. False feet of amoeba
C. Heart of amoeba
D. Eye of amoeba
Answer:
B. False Feet Of Amoeba
Thank Me Later!!
Preganglionic axons that pass through splanchnic nerves but do NOT synapse in the prevertebral ganglia are traveling to the
Answer:
adrenal medulla
Explanation:
Survival on land for organisms is difficult because of the problem of.
Answer: Relatively less abundant water on land makes survival difficult for terrestrial animals. All four problems stem from a lack of water. Terrestrial animals spend energy looking for water, which is not available easily. Terrestrial temperature fluctuates widely, so energy investments have to be made to keep body temperatures regulated.
Explanation:
Lucas is learning about the appearance, behavior, and environment of migrating birds. He uses virtual reality to see what the birds look like and watches them migrate. Then he uses modeling clay to create a bird. Which type of models did Lucas use?
O 2-D and 3-D
O Computer and 3-D
O 2-D and mental
O Computer and mental
From the statements of the question, Lucas used computer and 3-D models.
What is a model?The term model refers to a representation of reality. A model could serve the purpose of explanation or prediction.
We must note that the virtual reality is a computer package for creating 3D models and the modelling clay creates a tangible form of the 3D simulation hence Lucas used computer and 3-D models.
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Do chicken s have intelligence? PLEASE HELP
Answer:
FR om anticipating future events to recalling the trajectory of a hidden object, chickens are incredibly smart. They even possess self-control, holding out for a better food reward, and can assess their own position in the pecking order—both characteristics of self-awareness.
Explanation:
Which of the folowing pairs of macromolecules and their monomers are unrelated?
Two practical actions learners could take to improve their chances of receiving a bursary for tertiary education
The actions that students could take to improve their chances of receiving a bursary should be associated with their motivations and work. It is essential to obtain academic achievements.
What does motivation mean?Motivation, i.e., your internal desire to obtain something, is an essential aspect for improving the chances of receiving a bursary.
Motivation and working hard (in this case, studying hard) are essential aspects to have success in academic life.
Some other tips for improving the chances of getting a bursary may include the interest in the issues of your school and community and applying early for scholarships.
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6. What responsibility should fathers have to ensure the health of the
developing fetus?
Answer:
Father should give her healthy food
Explanation:
when mother eat healthy food the child which was in the womb of her will get nutritional energy then child health will be nice.
- For my economics class - Need help asap will mark brainliest!!! -
List two inferior goods and describe what makes them inferior. What normal goods could substitute for these inferior goods? What might it take for a consumer to switch to these normal goods?
Answer:
213
Explanation: