Answer:
Some genes produces variable traits depending on environmental conditions
Explanation:
The interaction between some genes and environments confers on individuals different degrees of susceptibility in the appearance of a certain characteristic or in the expression of some variable traits. The trait appears in individuals who have reached a certain threshold, thus the variability in phenotypic expression could be related to the greater or lesser number of predisposing genes in each individual. The differential expression of genes depending on the environment is called the reaction norm, and it refers to genes that can be expressed in a different way in different individuals, depending on the environment in which those individuals develop. The norm of reaction is the set of pathways that a genotype can follow, in all favorable and unfavorable environments, until giving rise to the various possible phenotypes.
Answer:
genes
Explanation:
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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Xylem is made of _________ cells. *
Answer:
Xylem is made of DEAD cells.
Need answer please thanks
Answer:
c
Explanation:
sorry if its wrong
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.
i need help with this ASAP
Answer:
i would love to help you, but all of the answers are on the map...
Explanation:
:)
HELPPP ITS FOR BIO AND SHE WONT LET ME TURN IT IN IF I DONT ENTER IT TOMORROW!!
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.
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
??
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:
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
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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What molecule contains hydrogen , carbon, nitrogen, and oxygen?
What molecule contains hydrogen , carbon, nitrogen, and oxygen?
Nucleic Acids
Answer:
Nucleic Acids
Explanation:
"Nucleic acids are organic compounds that contain carbon, hydrogen, oxygen, nitrogen, and phosphorus. They are made of smaller units called nucleotides. Nucleic acids are named for the nucleus of the cell, where some of them are found."
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.
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
25. Complete the diagram of phosphorylation :
Please help I have no idea what to do
Answer:
It is ATP on the other arrow
What does it mean for two species to be reproductively isolated from each other?
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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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·^∩ !
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
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.
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
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.
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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In a certain flower, Red (R) is dominant over white (r). Complete the Punnett Square for the
following cross:
Mother: Rr Father: rr
What percentage of offspring will be Red?
What percentage of offspring will be White?
Answer: 50% will be red and 50% will be white
Explanation: Make a punnet square
R r Rr=red rr=white
r Rr rr
r Rr rr
Answer:
50 percent of the offspring would be red
50 percent would be white
PLEASE ANSWER QUESTION IN PHOTO NOOOOW.
Answer:
AUG GCU GGC UGA AAU
Explanation:
I am double checking.
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.
Guys pls help me!!!!!!
Answer
A
Explanation:
that is the cell membrane it is used specifically for that reason, to help good things get it and to keep bad things out
Which word identifies the agent that carries the energy released from earthquakes?
1. Epicenter
2. Focus
3. Lithosphere
4. Waves
95 points, and plz hurry, thank you!
Answer:
it's D. waves
Explanation:
took the test on edge and got it correct
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!!
The patient recovers his/her strength and return to his/her normal state of health.
Answer:
good job
Explanation:
but what does this mean