Please explain your answer
Vestigial Structures are "left over" traces of evolution that serve no purpose. For example, wisdom teeth or appendix.
True or False
Answer:
false i guess sorry if it is wrong
What is the term used to describe the fact that cells are suited to perform a particular function within an organism?
Answer:
specialized cells- have sepicalized functions :))
What is Taxonomy????
If you search the answer, please CITE YOUR SOURCE!!!!!!
Answer: the branch of science concerned with classification, especially of organisms; systematics. i think?
Explanation:
Explanation:
if it is related to biology then it basically means naming or describing plants, animals and other organims
Why isn't it possible for adenine to pair with cytosine
or guanine?
Both bases need to twist hard to facilitate the hydrogen bond which is energetically expensive event; thus hydrogen bonds forming functional groups are not complementary in adenine and cytosine
mutation will always result in the formation of a deadly tumor, or the development of a major body defect.
Explain why this is incorrect.
The Krebs cycle forms many products. Which option lists the correct products of the Krebs cycle after 1 molecule of glucose goes through it.
A. net 2 NADH, 2 ATP, 4 CO2, 2 FADH2
B. net 2 NAD+, 2 ATP, 4 CO2, 2 FADH
C. net 4 NADH, 4 ATP, 8 CO2, 4 FADH2
D. net 1 NADH, 1 ATP, 2 CO2, 1 FADH2
Answer:
Its A
Net 2 NADH, 2 ATP, 4 CO2, 2 FADH2
The Krebs cycle forms 2 NADH, 2 ATP, 4 CO2 and 2 FADH2 after one molecule of glucose goes through it. So the correct option is A.
What is the Krebs cycle?The Krebs cycle is also known as the TCA cycle (tricarboxylic acid) or the citric acid cycle. It is the main source of cellular energy and an important part of the entire process of aerobic respiration.
In this cycle, the available energy of Acetyl coenzyme A is utilized and converted to Nicotinamide Adenine Dinucleotide (NADH). In glycolysis, glucose is utilized to form pyruvate. The pyruvate is oxidized to Acetyl coenzyme A and then it enters the TCA cycle.
The intermediates involved in the pathway also form intermediates for many other pathways to form porphyrins, amino acids, fatty acids etc. Thus, any disturbance in this cycle will not only disturb itself but many other pathways.
Therefore, the end products of the Krebs cycle are 2 NADH, 2 ATP, 4 CO2 and 2 FADH2. Hence the correct option is A.
Read more about Krebs cycle, here
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An ice cube melting is an example of a(n) _________________ change because it is ________________ heat. *
10 points
1. exothermic, releasing
2. endothermic, absorbing
3. endothermic, releasing
4. exothermic, absorbing
______ and _____ factors cam effect an organisms trait
Explanation: Genes are encoded with different traits. Each of these traits carries different functions to the new offspring that is developing. ... The genes that an organism inherits can affect gene function. For example, they can have a recessive gene for something that might affect them. I hope that this helps you out, have a fantastic day!!
The factors that influence the organism trait are the gene and environmental factors, as a result of that, organisms are controlled and regulated in a certain way, and the animals in the rainforest are different from those in the savanna due to this.
What is the significance of the traits and their regulators?Traits are determined by the combination of genetic and environmental factors, such as temperature, light, and nutrition, which affect the expression of genes and the development of an organism's traits, as exposure to certain pollutants leads to mutations in an organism's genetic material.
Hence, the factors that influence the organism trait are the gene and environmental factors, as a result of that, organisms are controlled and regulated in a certain way, and the animals in the rainforest are different from those in the savanna due to this.
Learn more about the traits and influence here.
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How much energy is passed from plants to primary consumers?
Answer:
Explanation: Primary consumers only obtain a fraction of the total solar energy about 10% captured by the producers they eat. The other 90% is used by the producer for growth, reproduction, and survival, or it is lost as heat. You can probably see where this is going. Primary consumers are eaten by secondary consumers.
Hemophilia is a recessive sex-linked disorder (Xh). A man with hemophilia and a female carrier are concerned about their daughter inheriting the disorder. Use a punnett square explain to these parents the probability (percent chance) that their daughter could have the disorder.
Answer:
The chances of a hemophilic man and a female carrier having a that one of their daughters inherits the disease are 25%.
Explanation:
Since hemophilia is a disease with a sex-linked recessive inheritance pattern —X chromosome— all males who acquire the altered gene will have hemophilia ([tex]X^{h}[/tex]Y), while a female should have both altered chromosomes ([tex]X^{h}[/tex]X) to manifest the disease.
If a hemophilic male and a female carrier of the hemophilia gene have children, the possibility of having a daughter with hemophilia can be seen by crossing.
♂ [tex]X^{h}[/tex]Y♀ [tex]X^{h}[/tex]XAlleles [tex]X^{h}[/tex] Y
[tex]X^{h}[/tex] [tex]X^{h}[/tex][tex]X^{h}[/tex] [tex]X^{h}[/tex]Y
X [tex]X^{h}[/tex]X XY
In the offspring, there are:
Healthy sons 25%.Hemophilic sons 25%.Carrier daughters 25%.Hemophilic daughters 25%.The hemophilic man and the carrier woman should know that they have a 25% chance of having a hemophilic daughter, or that 50% of their daughters may have the disease.
Which of the following is not a valid value for the charge of an atom or molecule?
A. 1.5 x 1.62 x 10-19 C
B. 3 x 1.62 x 10-19 C
C. 2 x 1.62 x 10-19 C
D. 15 x 1.62 x 10-19 C
E.1 x 1.62 x 10-19 C
Answer:
D
Explanation:
give specific example of some groups who have protested against the ESA and explain their reasons why they were against it. Include where they live.
what is the color of a mirror???? but dont uses google or a will be delete yout anserw because is not he google ansewr
Answer:
clear or white im not sure ?
Answer:
chrome
Explanation:
I will mark brainliest for whoeva can solve this
the environment can also affect an organism’s traits. The example of nourishment was used in the case for Spike, as this could affect his growth and size. This can also occur in humans. UV light was not mentioned in the video. How could UV light potentially affect an organism’s trait?
hope it helps
Genes, the environment, and the organism
The net outcome of the reading of a gene is that a protein is made that generally has one of two basic functions, depending on the gene. First, the protein may be a structural protein, contributing to the physical properties of cells or organisms. Examples are microtubule, muscle, and hair proteins. Second, the protein may be an enzyme that catalyzes one of the chemical reactions of the cell. Therefore, by coding for proteins, genes determine two important facets of biological structure and function. However, genes cannot dictate the structure of an organism by themselves. The other crucial component in the formula is the environment. The environment influences gene action in many ways, about which we shall learn in subsequent chapters. In the present context, however, it is relevant to note that the environment provides the raw materials for the synthetic processes controlled by genes. For example, animals obtain several of the amino acids for their proteins as part of their diet. Most of the chemical syntheses in plant cells use carbon atoms taken from the air as carbon dioxide. Bacteria and fungi absorb from their surroundings many substances that are simply treated as carbon and nitrogen skeletons, and their enzymes convert these components into the compounds that constitute the living cell. Thus, through genes, an organism builds the orderly process that we call life out of disorderly environmental materials
why are saprophytes and parasites considered heterotrophs?
Answer:
While a good number of saprophytes (e.g. many fungi) may possess plant-like traits, they are unable to produce their own food and therefore have to ingest organic compounds as their source of energy. It is for this reason that they are classified as heterotrophs
Which is one source from which metamorphic rocks form?
HELP NOW PLZ WILL GIVE BIG BRAIN STATUS!!
Answer: shale
Explanation:cuz it is
Answer:
igneous rock
Explanation:
Metamorphic rocks are formed as a result of heat and pressure transforming the original or parent rock completely into a new rock. Now this original or parent rock can either be sedimentary, igneous, or another metamorphic rock.
An adult damselfish will vigorously defend a square meter patch of algae on a coral reef from other herbivores. This behavior ensures that reef algae is not overgrazed. This is an example of what kind of factor?
ANSWERS ARE:
A. Exponential growth
B. Density independent
C. Density Dependant
D. Fractal
What is the correct answer?
Answer:
The correct answer is C. Density Dependent
Explanation:
I took Marine Biology lol
Please help...........
what you help me saying your questions
1) What is camouflage? __________________________________________________________________
2) How does a chameleon show protective coloration? __________________________________________________________________
3) How do adaptations help an animal survive? __________________________________________________________________
4) Explain how your animal could survive in another environment. __________________________________________________________________
5) Why is mimicry a helpful adaptation? __________________________________________________________________
6) Why might a predator stay away from an animal with warning coloration?
What factor affects the temperature of ocean water?
Answer:
The following factors affect the distribution of temperature of ocean water: (1) Latitudes: The temperature of surface water decreases from equator towards the poles because the sun’s rays become more and more slanting and thus the amount of insolation decreases poleward accordingly.
Explanation:
Answer:
Depth
Explanation:
The ocean has three layers from the top to bottom containing different temperatures. The first layer is of warm oceanic water approximately 500 m think containing temperatures of about 20 degrees Celsius to 25 degrees Celsius. The second layer is the thermocline layer characterized by a decreasing temperature with increased depth. The last layer is that of very cold temperature that extends to the deep ocean floor. There are other factors which affect the distribution of temperature of ocean water which include: latitudes, unequal distribution of land and water, prevailing wind and ocean currents.
What do all cells in your body have in common?
Answer:
they all have a membrane
Explanation:
although some cells may have similar structure and chemical features, the only thing they all share is a membrane^^
A gardener plants a row of yellow flowers in her front yard. The next year, she notices that some of the new generation of flowers are yellow, while others are red. Which of the following best explains how this is possible?
A. The red flower allele must be recessive, because it hid behind the yellow allele.
B. The red flower color probably resulted from a mistake in the plant’s DNA.
C. The red flower color probably resulted when the yellow plant mixed its DNA with another species.
D. The red flower allele must be dominant, because it masked the yellow allele.
Answer:
a
Explanation:
This model shows a human embryo. What can you determine about its development from the model?
It has a postanal tail.
It’s a vertebrate
It has pharyngeal arches.
It has fully developed organ systems.
In humans, tails are vestigial structures, meaning the embryo can express it in early stages of development, but then, they loose it. Option A) It has a postanal tail.
What is a vestigial structure?Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species.
These vestigial structures might be found in many animals, including human beings. They were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts.
An example of these structures is the coccyx. This tailbone is the remnant of a missing tail. Actually, all mammals have a tail at some point in their development, even in humans, it is present for a period of 4 weeks during embryogenesis, but after a period of time this tail disappears and its forming vertebras get fussed with each other composing the coccyx.
In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function. Although it is still an area of muscle insertion.
The correct option is A) It has a postanal tail.
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PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!
BRAINLIEST
William noticed that the sky was cloudy and wanted to see if he could predict the coming weather, so he recorded the barometric pressure throughout the day. He put his results in a chart.
Numbers in chart:
9:00 A.M. 30.55
11:00 A.M. 30.34
1:00 P.M. 30.01
3:00 P.M. 29.88
5:00 P.M. 29.88
William decided that the weather would be
Choose...
a. windy
b. clear
c. hot
d. stormy
because the barometric pressure was
Choose...
a. rising
b. stable
c. irregular
d. falling
.
What would happen to the concentrations of Pyruvate, NADH
and intermembrane Ht if Glycolysis stopped working?
Decrease
Stay the Same
Increase
Pyruvate
C)
NADH
H
Answer:
They would all decrease.
Answer:
All decrease
Explanation:
I had the problem
A mutation causes a tomato plant to have much fewer, smaller leaves. Plants use their leaves to make food.
Which best describes this mutation?
O It is harmful because it obviously affects the plant's ability to survive.
It is beneficial because it affects the plant's physical appearance.
O It is neutral because it does not obviously affect the plant's ability to survive.
It is neutral because it affects the plant's physical appearance.
Answer:
It is harmful because it obviously affects the plant's ability to survive.
Answer:
A
Explanation:
Got it right on Quiz
What is the function of the cell wall in plant cells
Answer:
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
If a substance is more highly concentrated outside the cell than inside the cell and the substance can move through the cell membrane, the substance will
Answer:
c. move by diffusion from outside to inside the cell.
Explanation:
Hi, I'm Isabell G, I'm in actually in your same period lol. I'm not sure if you already did it but yeah here's the answer. I checked it after I submitted it, it's correct.
If a substance is more highly concentrated outside the cell than inside the cell and the substance can move through the cell membrane, the substance will move by diffusion
What are diffusion and its importance?
Diffusion is the transfer of individual molecules of material from a region of higher concentration to a region of lower concentration over a semipermeable barrier
Cells depend on diffusion to get the nutrients they need to develop and obtain energy as well as to rid themselves of waste materials. It helps in gaseous exchange during respiration in organisms.
Thus, when a substance is more highly concentrated outside the cell than inside the cell and the substance can move through the cell membrane, then the substance will move by diffusion
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