One piece of evidence that supports the modern theory of evolution is the presence
of similar structures that serve different functions in different organisms.
What is the term used to describe these structures?
embryological structures
analogous structures
vestigial structures
homologous structures
Answer:
Analogous structures.
Explanation:
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1. A certain disorder is recessive and sex-linked. Circle all of the geno-
types of people who have the disorder.
X^r X^r and X^r Y genotypes of people who have the disorder.
What are genotypes?A genotype is a scoring of the type of variant present at a given location (i.e., a locus) in the genome. It can be represented by symbols. For example, BB, Bb, bb could be used to represent a given variant in a gene.
Moreover, the different types of genotypes are- homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.
Hence, there are four hemoglobin genotypes (hemoglobin pairs/formations) in humans: AA, AS, SS and AC (uncommon). SS and AC are the abnormal genotypes or the sickle cells. We all have a specific pair of these hemoglobin in our blood which we inherited from both parents.
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HELPPP ITS FOR BIO AND SHE WONT LET ME TURN IT IN IF I DONT ENTER IT TOMORROW!!
Question 7 of 30
Which of the following is the best definition of an ecosystem?
O A. A system formed by the interactions of all of the living things
within an area
B. A system formed by the interactions of organisms of the same
species that live in the same area
C. A system formed by the interactions of living organisms with the
nonliving physical environment
D. A system formed by the interactions of all of the nonliving things
that exist in the same area
Answer:
C
Explanation:
ecosystem is living AND non living things
The best definition of an ecosystem is option C: "A system formed by the interactions of living organisms with the nonliving physical environment."
What is an ecosystem?An ecosystem is a community of living organisms, such as plants, animals, and microorganisms, interacting with each other and their nonliving environment, including the atmosphere, soil, and water.
This interaction creates a functional system that can be characterized by energy flow and nutrient cycling. The other options are not accurate definitions of an ecosystem, as ecosystems involve both living and nonliving components, and the interactions are not limited to a single species.
Ecosystems are not isolated, and they can interact with other ecosystems. For example, rivers and streams can transport nutrients and organisms downstream, connecting different ecosystems such as a forest and a freshwater system. Similarly, the atmosphere can transport pollutants and other materials across vast distances, affecting ecosystems far from their source.
In summary, an ecosystem is a complex, interconnected system where living organisms interact with each other and the non-living components of their environment. Understanding the functions and interactions within ecosystems is critical to developing effective management strategies for conserving biodiversity and maintaining the ecosystem services that humans depend on.
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Which of the following correctly matches each of the inputs of the Calvin cycle (light-independent reaction) with its role in the cycle?
a
CO2: high-energy electrons; ATP: energy; NADPH:oxidation
b
CO2: carbon; ATP: energy; NADPH: high-energy electrons
c
H2O: oxygen; ATP: carbon; NADPH: energy
d
Glucose: carbon; ADP: energy; NADP: high-energy electrons
Answer:
it is b
Explanation:
I got dis questions
Need answer please thanks
Answer:
c
Explanation:
sorry if its wrong
Oesophagus
• Boluses of food pass through by_________
involuntary movements of the longitudinal
and circular muscles, primarily in the digest
tract that occur in progressive wavelike
contractions.
Answer:
The correct answer is - Peristalsis
Explanation:
Boluses of the food move through involuntary movements of circular and longitudinal muscles known as Peristalsis is, mainly in the digestive tract or alimentary canal. These movements are likes waves or contraction in the alimentary canal.
In the oesophagus, the movement of this series of movements known as peristalsis starts from the top portion of the tube and pushes the food and pushed it into the stomach.
An allele that is masked when a dominant allele is present?
Answer: an allele that is masked when a dominant allele is present
Explanation: so the answer is yes
Answer:
A non- dominant allele.
Explanation:
Hope this helps
Shadows happen when an object:
Answer:
c: allows some light to pass through
Explanation:
makes the most sense
Answer: A
Explanation: Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object.
In general, how might choosing a small sample size affect a scientific investigation?
A. A small sample size is more precise than a large sample size.
B. A small sample size is not as reliable as a large sample size.
C. A small sample size is less expensive than a large sample size.
D. A small sample size has fewer dependent variables than a large sample size.Following the War of 1812, the United States reached a number of agreements with foreign countries. Match the parts of each
Answer:
a small sample size is not as reliable as a large sample size
Explanation:
Cells come from other cells. Question 2 options: Sometimes False Never True
Answer:
This statement is true because cells have the capability to divide.
Answer:
It is true
Explanation:
I took the test its right
PLEASE HELP!!!
The human body creates more carbon dioxide while exercising than when it is at rest. Which of the following best
explains how the systems in the human body work together to maintain homeostasis and remove excess carbon dioxide?
А
The respiratory system takes in more oxygen, and the blood transports the oxygen and carbon dioxide to and from the
tissues.
B
The circulatory system takes in less carbon dioxide, and the lungs transport more oxygen to and from the tissues,
The respiratory system takes in less carbon dioxide, and the heart pumps more oxygen to and from the tissues.
D
The circulatory system takes in more oxygen, and the skin transports the oxygen and carbon dioxide to and from the
tissues.
Answer:
A
Explanation:
Its only the blood that transports Oxygen and carbon dioxide to and from the tissues.
Xylem is made of _________ cells. *
Answer:
Xylem is made of DEAD cells.
Pleas help please help HELP
How can one system be consider a component of another system?
Answer: The body is a system filled with smaller systems. Each used to help out the other and benefit the body as a whole. For example, the respiratory system takes in oxygen, the heart then takes the oxygen in the blood and pumps it throughout the entire body. Then veins carry that blood to muscles and organs. Each unique system has a job to do, when one malfunctions the whole system can fail.
Explanation: Hope this helps :)
i need help with this ASAP
Answer:
i would love to help you, but all of the answers are on the map...
Explanation:
:)
PLEASE ANSWER QUESTION IN PHOTO NOOOOW.
Answer:
AUG GCU GGC UGA AAU
Explanation:
I am double checking.
At Happy Harry’s Laundromat, the dryer costs $1.50 for 10 minutes. At Jolly Judy’s Laundromat the dryer costs $2.25 for 15 minutes. Which laundromat offer the better deal?
TRUE OR FALSE: Phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc. In fact, any phospholipid may be called a "cellular tourist" because it is able to move about to virtually any part of a cell and can even become a part of a cell in a different region of the body! (EXPLAIN WHY)
Answer:
False, because phospholipids are a type of lipids and the nuclear envelope contains nucleic acids.
Explanation:
Hope this helps.
It is true that phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc.
What is nuclear envelope made of?The nuclear envelope is made up of two concentric lipid bilayer membranes separated by a 20-40 nm intermembranous space.
In many places, the outer membrane is joined to the rough endoplasmic reticulum. The outer membrane of the nuclear envelope, like the rough ER, is dotted with ribosomes.
The nuclear envelope is made up of two membranes: an outer and an inner phospholipid bilayer. The lumen of the rough endoplasmic reticulum is connected to the thin space between the two layers (RER).
Nuclear pores, which are small channels that run across the nuclear envelope, allow substances to enter and exit the nucleus.
Each pore is lined by a group of proteins known as the nuclear pore complex, which regulates which molecules can enter and exit.
Thus, the given statement is true.
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The patient recovers his/her strength and return to his/her normal state of health.
Answer:
good job
Explanation:
but what does this mean
3.A subunit of DNA that consists of a sugar, a phosphate,
and a nitrogenous base____
A. Thymine
B. Nucleotide
C. Amino acid
Answer:thymine
Explanation:
thymine is in the DNA
Answer:
Nucleotide
Explanation:
Thymine is a nitrogen base, and amino acid is a building block for protein. A nucleotide is made up of a sugar, a phosphate, and a nitrogenous base.
PLZ HELP HAVE 10 MINUTES ON THE TEST LEFT While all the food crops contribute to nutritional health ______ are the most important to famine conditions
Answer:
Humanitarian aid are the most important to famine conditions
Compare and contrast the composition of DNA and RNA DNA and RNA both have________ DNA has _______________,but RNA has _______________insteasd
Answer:
1st blank: four nitrogenous bases each. (cytosine, adenine, and guanine)
2nd blank: DNA had thymine
3rd blank: RNA has uracil
A strand of DNA consists of 35% adenine. What is the percentage of cytosine in that same
molecule of DNA?
Answer:
20.5%
Explanation:
Hope this helps!!
tiying pe
Answer the following questions.
4) Choose the best answer.
How are organisms classified in the phylum category?
based on basic body structure
color
cell structure
chromosomes
Answer:
Basic body structure.
Explanation:
Organisms classified in the phylum category on the basis of their basic body structure. Organisms are classified in the groups and subgroups on the basis of similarities and differences. Those organisms that show resemblance is to be put in the same group. They have some similar characteristics such mode of reproduction, mobility, feeding behaviour and body structure etc.
5.. Which compound is formed as a common product of the process of
photosynthesis? *
A.DNA
B.sugar
C.chlorophyll
D.carbon dioxide
Answer:
B.Sugar ( Glucose)
Explanation:
I hope this helps!
A compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
What do you mean by Photosynthesis?Photosynthesis may be defined as a process through which plants utilize carbon dioxide and convert it into glucose in the presence of sunlight.
The reactants of photosynthesis are carbon dioxide and water, while the products are glucose and oxygen.
The reaction of photosynthesis is given below:
[tex]6CO_2 + 12H_2O[/tex] → [tex]C_6H_1_2O_6 + 6O_2 + 6H_2O[/tex]
Therefore, a compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
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The two narrow tubes that urine flows through from the kidneys to the bladder are the
kidneys
esophagus
ureters
Answer:
Two ureters.
These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, a kidney infection can develop.
Why cells are considered the basic structure of all living things how their specialized perform specific functions?
Answer:
The answer is below :D
Explanation:
Cell's are considered the basic structure of life because every living thing is made up of cell's . Cell's have stuff inside them called organelle's such as the Nucleus , Mitochondria , Vacuole , and more! If we weren't made up of cell's what would we be made up of ? There are skin cell's , brain cell's , blood cell's . Hope I helped and have a great day ∩^·ω·^∩ !
What does it mean for two species to be reproductively isolated from each other?
25. Complete the diagram of phosphorylation :
Please help I have no idea what to do
Answer:
It is ATP on the other arrow
Body of a female was found in alley behind dumpsters in a major u.S city. No apparent wounds were observed on the body
Answer:
Interesting
??