Answer:
is it 60%
Explanation:
if this is wrong I'm sorry
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:
A gene pool in a population of jackrabbits in a field remained constant for many generations. The most probable reason for this stable gene pool is that
A) no migration occurred in a large population with random mating and no mutations
B) no migration occurred in a small population with random mating and no mutations
C) no migration occurred in a large population with nonrandom mating and no mutations
D) there was much migration into and out of the large population, but mating was random and there were few mutations
E) the population was small with no mutations, no migrations, and no nonrandom mating
Answer:
A.) No migration occurred in a large population with random mating and no mutations.
Explanation:
hope it helps ^^'
Answer questions Please
(1st photo) 4.A (2nd photo) 2.A
(1st photo)
Third level consumers are organisms large enough to feed off lower level consumers. As you can see, the bird is a third level consumer because it is big enough to feed off the lizard, bee, and plants.
(2nd photo)
The flow of energy in an ecosystem is producer->decomposers & consumers->decomposers
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
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:
Which method is used to obtain petrol from petroleum?
Answer:
Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.
Explanation:
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
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.
[tex] \boxed{ \frak \red{Keep \: Learning}}[/tex]
Which two forms of energy does a hairdryer convert electric energy into?
•
chemical
energy
•
gravitational potential energy
magnetic energy
motion energy
thermal energy
Answer:
thermal energy and chemical energy i think but im sure about thermal
Explanation:
would you mind answering my question please
Answer:
c d
Explanation:
c d
Match the definition to the term:
fuel made from living things
a) hydroelectric power
b) solar energy
c) nuclear fission
d) biomass fue
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:
The process by which the body‘s internal environment is kept in equilibrium
Answer:
The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature.
Explanation:
Explain how the cohesive and adhesive properties of water are useful in maintaining various life processes.
The cohesive and adhesive properties of water molecules helps plants take up water at their roots.
What is Cohesion?This is a intermolecular attractive force which holds molecules tightly to each other.
Cohesive and adhesive forces ensures plants use water for photosynthesis and temperature regulation.
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How is commensalism different from mutualism?
Answer:
So, to review, mutualism is where both organisms benefit, commensalism is where one benefits and the other is unaffected, and parasitism is where one benefits and the other is harmed.
Answer:
So, to review, mutualism is where both organisms benefit, commensalism is where one benefits and the other is unaffected, and parasitism is where one benefits and the other is harmed
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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Complete this food chain
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.
---
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.
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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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
Where are these cellular receptors located?
Answer:
Receptor sites can be found within the plasma membrane of a cell, which acts as a boundary between the cell's internal and external environment. Molecules that bind to receptor sites are known as ligands. Hormones, neurotransmitters, and drugs are examples of ligands.
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.
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.
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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What might happen to the rate of diffusion if the blood flow were to speed up?
Answer:
Diffusion rate increases
Explanation:
The rate of diffusion would increase as a steep concentration gradient is maintained so more nutrients/ glucose diffuses quickly. This is also how the small intestines are adapted to have efficient diffusion rates as there are many capillary networks that allow lots of blood flow, increasing diffusion rates.
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:
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.
1. What type of muscle controls leg movement?
cardiac
smooth
striated
2.What happens when a muscle contracts?
It shortens
It lenthens
3. How many muscles are in the human muscular system?
under 200
over 500
over 1,000
over 600
4. What type of muscles are found in the large intestine?
cardiac
smooth
striated
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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