Forms of the Ras protein found in tumors usually cause which of the following events to occur? excessive cell division decreased cell-to-cell adhesion cell division to cease DNA replication to stop
The Ras protein found in tumors usually cause which of the following events to occur excessive cell division.
How does Ras oncogene contribute to cancer?Ras genes codes for proteins that can drive cancer when mutated.
All Ras proteins are GTPases which work as molecular regulators in the cell, controlling signaling pathways and other interactions.
Thus, option "A" is correct.
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Complete this food chain
The trophoblast is mostly responsible for forming the ________
The trophoblast is mostly responsible for forming the placental tissue. The trophoblast is the outer layer of the blastocyst.
What is the trophoblast responsible for forming?Trophoblasts are cells forming the outer layer of a blastocyst, which provides nutrients to the embryo, and develops into a large part of the placenta.
They are formed during the first stage of pregnancy and are the first cells to differentiate from the fertilized egg.
Thus, The trophoblast is mostly responsible for forming the placental tissue.
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change the following into scientific notations
=7.35×10 5power of 10×4×10 -9 is power of 10
Answer:
4923+3533/2"(5'(5-97y633+94'62_-83794-$74--432934-8
explain why a fossil record is not 100% accurate
Answer:
There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Explanation:
Glucose in the renal tubules encountering luminal epithelia can be absorbed via the ____________ route by passing through the plasma membrane of the absorptive cell.
Answer:
The word is Transcellular.
how many kingdoms of bacteria are ther?
Answer:
The scheme most often used currently divides all living organisms into five kingdoms: Monera (bacteria), Protista, Fungi, Plantae, and Animalia.
Explanation:
In order for complete exclusion from an area to be avoided, ____________ can occur whereby similar sympatric species evolve slightly different ecological niches.
In order for complete exclusion from an area to be avoided, resource partitioning can occur whereby sympatric species evolve in different niches.
What is resource partitioning?The expression 'resource partitioning' makes reference to the use of the same resources (e.g., food) by different species.
Resource partitioning is fundamental for maintaining suitable levels of biodiversity in a given ecosystem.
In conclusion, in order for complete exclusion from an area to be avoided, resource partitioning can occur whereby sympatric species evolve in slightly different niches.
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By hiring your children, you can
pay low wages .
show how much you care.
transfer wealth without estate taxes.
avoid payroll taxes.
What elements are common to all 4 Biomolecules?
1)Carbon, Hydrogen, Phosphorus
2)Carbon, Hydrogen, Oxygen
3)Carbon, Nitrogen, Phosphorus
Answer:
Carbon, Hydrogen, Oxygen
Explanation:
A small minute quantity of DNA has been isolated from a 40 million year old plant fossil. You wish to perform gel electrophoresis on the sample, but you will have to perform ________ to obtain enough of a samples to pipette into wells on a gel.
It is required to perform a polymerase chain reaction (PCR) to obtain enough samples to pipette into wells on a gel.
What is a PCR?The polymerase chain reaction (PCR) is a technique used in molecular biology to increase the amount of a given fragment of DNA.
This technique (PCR) is fundamental to determine the alleles of a given sample after gel electrophoresis.
In conclusion, it is required to perform a polymerase chain reaction (PCR) to obtain enough samples to pipette into wells on a gel.
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4.
Which of the following correctly lists the levels in an ecosystem from largest to smallest?
A. ecosystem, community, population
B. community, ecosystem, population
C. population, ecosystem, community
D. ecosystem, population, community
Answer:
A. ecosystem, community, population
Match the definition to the term:
fuel made from living things
a) hydroelectric power
b) solar energy
c) nuclear fission
d) biomass fue
The continuity of life can be exemplified by which of the following?
I. A mother gives birth to a son.
II. A cell divides to replace another cell.
III. A leukocyte engulfs a virus particle.
IV. A strand of DNA is replicated before mitosis.
V. Seeds develop inside of an orange.
A. I and III only
B. I, II, IV, and V only
C. I, II, III, IV, and V
D. I, II, and III only
c
that should be the answer
Prokaryotes and eukaryotes
Organisms can be divided into two main groups based on fundamental differences in their cell structure. Animals, plants, fungi, and protists are eukaryotes. Bacteria and archaea are prokaryotes. All prokaryotes are unicellular while eukaryotes may be single-celled or multicellular.
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Hope this was able to help you! :)
Answer:
Explanation:
The term "prokaryote" refers to single-celled organisms that lack nuclei. The term "eukaryote" refers to organisms that may be single-celled or multicellular, but whose cells are distinguished by nuclei that contain genetic informaiton.
The form of a pathogen that enables it to infect a host is called the
Question 2 options:
parasite
None of the answer choices are correct.
pathogen
inoculum
host
The lymphatic system: has a pumping mechanism to move fluid. includes areas of high concentrations of APCs, T and B cells. is the site of B and T cell clonal deletion. collects fluid from around the brain and spinal cord. is very impermeable to extracellular fluid.
The lymphatic system: has a pumping mechanism to move fluid includes:
Includes areas of high concentrations of APCs, T and B cell.Is the site of B and T cell clonal deletion.What are the 6 lymphatic organs?Lymphoid organs are:
Bone marrow. Thymus.Lymph nodesSpleen. Tonsils.Mucous membranes.Thus, option "A and B" is correct, it helps in pumping mechanism to move fluid.
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Evaluate each of the statements below. Select those that accurately describe the role of genes and chromosomes in the process of inheriting a specific trait. Choose all THREE that apply. Question options:
Chromosomes are made of DNA.
There are 26 pairs of chromosomes in humans.
Alleles are the different forms of a gene that can exist.
Chromosomes contain genes that control the inheritance of traits.
Genes are made of chromosomes and contain all of the genetic information for an organism
4. If eutrophication is severe, the water body may no
longer be able to support life. This is because the water
becomes depleted of____
due to the overactive_____________
that are decomposing the surplus of
decaying organisms, which died due to the__________.
The bacteria use the oxygen for__________.
.
Answer: becomes depleted of____
due to the overactive_____________
that are decomposing the surplus of
decaying organisms, which died due to the__________.
The bacteria use the oxygen for__________.
.
Explanation: Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. The excess algae and plant matter eventually decompose, producing large amounts of carbon dioxide. This lowers the pH of seawater, a process known as ocean acidification.
Which of the following pollutants commonly make their way to bodies of
water via agricultural runoff?
1. Fertilizers
11. Pesticides
III. Eroded soil
Answer: i believe the answer is I and II only
Explanation:
Answer: its i, ii and iii
Explanation:just did it
Thinking about the number of carbon atoms in glucose and in pyruvic acid, explain why there is one molecule of glucose on the left side of the arrow and two molecules of pyruvic acid on the right side of the arrows
Answer:
Each glucose molecule has 6 C atoms, while each pyruvic acid molecule contains 3 C atoms. As a result, there must be two molecules to hold all six C atoms.
Explanation:
would appreciate some help!
If R = red and r = white in fruit flies, what would
be the result of a cross between a heterozygous
female (red-eyed with one recessive allele) and
a recessive male?
Hint: Draw a Punnett square.
A. 25% red-eyed female, 25% white-eyed female, 25% red-eyed
male, 25% white-eyed male
B. 25% white eyed male, 25% red-eyed male, 50% and red-eyed
female offspring
C. 0% chance of white-eyed flies
Answer:
is it 60%
Explanation:
if this is wrong I'm sorry
How could a color mutation affect an organisms life
Answer:
Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.
Need help plsss I will give u 100 points
Answer: Mrs.Connor
Explanation:I just want to go with is the flow.
On Earth, the plants and the oceans store carbon dioxide from the atmosphere. What results when a factor, such as the clear-cutting of large stands of forest, disrupts this process?
global warming
overpopulation
ozone depletion
soil erosion
It would increase the level of carbon dioxide thereby leading to global warming and is denoted as option A.
What is Global warming?
This is defined as an increase in the average air temperatures close to the Earth surface.
This is as a result of collection of carbon dioxide (CO2) and other air pollutants in the atmosphere.
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Why is evolution so important for understanding biology? Explain your answer in 1-2 sentences.
why the left ventricle is thicker than the right ventricle?
[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]
[tex] \sf \red{why \: the \: left \: ventricle \: is \: thicker \: than \: the \: right \: ventricle?}[/tex]
[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]
[tex]\green\star[/tex]Functions of right and left ventricle:
[tex]\blue\star[/tex]Right ventricle: The right ventricle pushes the blood on the pulmonary artery, which then is send to lungs to pickup oxygen.
[tex]\blue\star[/tex]Left ventricle: The left ventricle distribute the oxygenated blood to the entire parts of the body.
Since, the left ventricle pushes the oxygenated blood to the entire body. Thus, left ventricle is thicker then the right ventricle.
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Explain the important role that your nose plays in your breathing. Help me
Answer:
The nose allows oxygen to come into your body.
Which of the following is a limitation of a clinical trial?
• A. Amount of random assignment
• B. Hospital costs
• C. Amount of peer review
• D. Number of test tubes
SUBMIT
Answer:
C. amount of peer review.
Explanation:
Atp is important for chaperone protein function. Why would protein import into mitochondria be disrupted if atp were depleted from inside mitochondria?.
Answer:
The protein could slip back out of the mitochondria during transport
Explanation:
