Answer:
Chlorophyll's job is to obsorb sunlight into the plant to be able to use the process of photosynthesis! Answer is C
Over 500 million years ago what was British Columbia ??
Answer:
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
The wing of a bird and the front limb of a mammal have a similar number and arrangement of bones. Which evolutionary relationship explains these similarities? A. The wing and front limb are homologous structures; each evolved from a common ancestor. B. The wing and front limb are analogous structures; each evolved from a common ancestor. C. The wing and front limb are analogous structures; each evolved independently. D. The wing and front limb are vestigial structures; one evolved from the other.
Answer:
A
Explanation:
The correct answer would be that the wing and front limb are homologous structures; each evolved from a common ancestor.
Homologous structures are organs of different organisms that look similar in structure but perform different functions on their respective owners. They are as opposed to analogous organs which look different on different organisms but perform similar functions on them.
An example of the homologous organ is the wing of birds and the fore-limbs of mammals which are both built on a five-digit plant, also known as pentadactyl plan. While birds use their wings to fly, the fore-limbs of mammals are adapted for grasping or walking. An example of the analogous organ is the wing of birds and the wing of insects. They both look structurally different but are both for flying.
The correct option is A.
What best describes a high pressure system? Question 4 options: Warm, rising air that creates cloudy, rainy weather Warm, rising air that creates clear, sunny weather. Cool, sinking air that creates cloudy, rainy weather Cool, sinking air that creates clear, sunny weather
Answer:
a high pressure system : Cool, sinking air, that creates clear, sunny weather.
Explanation:
The characteristics of the high-pressure system is marked by the presence of the cold and sunny days as compared to those of the warm and low-pressure pressure regions of the world. The air is light and lifts up easily and hence leading to the formation of clouds and rainfall. As compared to the cold air mass that is dense and hence has low moisture contents.What is nonrenewable and renewable mean?
Answer:
renewable is one that can be used repeatedly and does not run out because it is naturally replaced. A renewable resource, essentially, has an endless supply such as solar energy, wind energy, and geothermal pressure
Nonrenewable is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource. Fossil fuels such as oil, natural gas, and coal
wich soil
dries faster after rainfall
Answer:
There are 3 types of soil
Explanation:
-Sandy soil
-Clay soil
-Loam or something i forgot lol
1.basically Sandy soil absorbs and doesn't retents water (water retention) so it evaporates quizker than most soils
2.While clay say doesn't absord much water
3.And loamy soil (Mostly used in gardening) absorbs water but doesn't retain it so it evaporate or either used up by plants.
17. Which of the following is not an issue with migration to land for water plants
a. dehydration
C. support
b. vascular tissue
d increased preditors
Which structures in the cell are protiens assembled in?
In order to insure the survival of our planet, people have a responsibility to
A.avoid recycling materials
B.eliminate all plant life on this planet
C.consider the impact of their actions
D.use as much energy as possible
C. Consider the impact of their actions, is the correct answer.
A is not correct because recycling helps protect the environment and helps boost the economy. B is not correct because plants helps supply oxygen for humans and animals. It is also a food source for some animals and humans. C. is not correct because we need to save energy for a healthier and cleaner planet.
35
Which best describes another name for an organism that is heterozygous for a trait?
A recessive
IN
B hybrid
purebred
D) dominant
Answer:
pretty sure hybrid
PLEASE HELP - Practice Selecting and Reading a Value on a Micropipette
Answer:
See email again. I am working on it.
Why must DNA replication happen in order for the stem cell treatment to work?
Answer:
Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Explanation:
Describe the data used by Watson and Crick to determine the structure of DNA
they used Franklin's x-ray picture and data as well as other mathematical data to determine the specific structure of the DNA double helix. Compare and Contrast the structure of prokaryotic and eukaryotic chromosomes.
Data of X Ray diffraction is used by Watson and Crick to determine the structure of DNA.
What is X Ray diffraction?"X-ray diffraction is a phenomenon in which the atoms of a crystal, by virtue of their uniform spacing, cause an interference pattern of the waves present in an incident beam of X rays."This is used for determining the 3D structures of crystal.By using data of this method Watson and Crick gives helical structure of DNA.
Hence, the data used is of X Ray diffraction.
To know more about X Ray diffraction here
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Specialized cells are __________ intocells with specific functions
Specialized cells are stem cells that turn into cells with specific functions
Specialized cells are differentiate into cells with specific functions.
What is cell differentiation?Cells are the fundamental cornerstones of all life. Numerous numbers of cells construct the human body.
The process by which dividing cells alter their functional or phenotypical type is known as cell differentiation. All cells, it is assumed, derive from stem cells and acquire their functions as they mature.
In response to antigen exposure, some differentiation occurs. Differentiation alters a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals significantly.
These changes are primarily the result of highly controlled changes in gene expression and are the subject of epigenetic research.
Mesenchymal stem cells, epithelial stem cells, and muscle satellite cells are the three types of differentiated cells.
Thus, the answer is differentiation.
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Which statement describes one characteristic of this molecule?
a.) it is the template for the replication of genetic information
b.) organic catalysts are made of these molecules
c.) it is different in each cell of an organism
d.) cell membranes contain many of these molecules
PLS HELP GIVING BRAINLIST TO ANYONE WHO ANSWERS
Answer:
1
Explanation:
What shape is this galaxy??
Answer:
a circle
a sphere
Explanation:
Using the sequence of DNA bases below, give the proper tRNA anticodons involved in protein synthesis.
TTAAGC
Answer:
AAUUCG is the mRNA's sequence and the codons are AAU and UCG. So the anticodons are complementary:
UUA and AGC
These are the anticodons
Note: Thymine is substituted with uracile in RNA
PLEASE ANSWER THESE 3 QUESTIONS ASAP GIVING 23 POINTS AWAY!!!!!!!!!
Answer:
1.B PLEASE ADD BRAINIEST
2.D
NEED HELP ASAP:
Which of the following describes DNA methylation?
A.) A mechanism involving attachment of methyl groups to certain bases to increase the rate of transcription.
B.) A mechanism involving attachment of methyl groups to certain bases to facilitate the binding of DNA to intermediate filaments.
C.) A mechanism involving attachment of methyl groups to certain bases leading to apoptosis.
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
Hello, I Am BrotherEye
Answer:
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
Explanation:
View Above
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BrotherEye
The statement that can be used to describe DNA methylation is "A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development."
Option D.) is correct.
Define DNA methylation.DNA methylation controls gene expression by attracting proteins implicated in gene repression or preventing transcription factor(s) from binding to DNA. The pattern of DNA methylation in the genome varies during development as a result of a dynamic process that includes both de novo DNA methylation and demethylation.
DNA methylation is an epigenetic mechanism that happens when a methyl group is added to DNA, altering the function of genes and influencing gene expression.
It's a process that involves attaching methyl groups to specific bases in order to inactivate genes for a lengthy time throughout development.
So, the statement that can be used to describe DNA methylation is option D.)
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how will building a road through the rainforest affect logging companies?
Answer:
The loggers will chop the trees, they will make money which would help the ecosystem. Although the earth would get warmer because the tree will not be using the Co2 for photosynthesis.
Explanation:
9. Nulceus
(1 Point)
O plant
O animal
O both
10. Vacuole
(1 Point)
O plant
O animal
O both
Answer:
1. Both2. Both
Hope this helps!
Which is a unicellular fungus?
A Slime mold
B Mushroom
C Yeast
D none of these
Explanation:
Unicellular fungi are generally referred to as yeasts. Saccharomyces cerevisiae (baker's yeast) and Candida species (the agents of thrush, a common fungal infection) are examples of unicellular fungi. Example of a unicellular fungus: Candida albicans is a yeast cell and the agent of candidiasis and thrush.
Pls help, this is science class btw
Think about the meanings of the words "dependent" and "independent" as they relate two variables. What do you think "interdependence" means in terms of organisms that live together in an ecosystem?
Answer:
Explaination Down Below
Explanation:
Interdependance could mean how the two organisms are two different living things that work in different ways to eachother, yet because of the fact they live together in an ecosystem states the fact they work together to help that ecosystem thrive.
(This is my interpretation, feel free to copy and paste as your answer :))
Which factor is a major difference between weather and climate?
A. Time
B. Sustainability
C. Location
D. Impact
Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
5. The sequence of nitrogen bases on a portion of a strand of DNA is ATGCAA. Which
sequence best represents the portion of the messenger RNA strand that encodes this
information?
A TAGOTT
B. UAGOUU
CAUBCAA
D. UAOGLU
ace
UAGOUU is a messenger RNA strand that encodes this information.
What is Messenger RNA?
Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.
The function of mRNA is to transport protein information from DNA in the cell's nucleus to the cytoplasm (watery center), where the machinery responsible for producing proteins reads the mRNA sequence and converts each three-base codon into an amino acid that will eventually create a protein.
mRNA, or messenger RNA. Therefore, mRNA is actually a type of nucleic acid that aids in the cellular machinery's ability to read the human genome, which is encoded in DNA.
Therefore, UAGOUU is a messenger RNA strand that encodes this information.
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>> how is atp produced in the mitochondria?
Answer:
Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.
Explanation:
- Eijiro <3
Answer: Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.
Can someone pls help me
WILL MARK YOU BRAINLIEST !!
Answer:
The Correct Answer Is D
Explanation:
the more it mutates the stronger it gets right? this also lessens the chance for a cure to work.
Answer:
The answer is D.
Explanation:
The reason behind it is because bacteria has grown to resist antibiotics so scientists and doctors have to continue to make stronger medicines to fight off the bacteria.
What similarities in the development lead scientists to infer that opossums ,chickens, salamanders,and fish share a common ancestor?
How tall is the average male in North Korea?
Answer:
The average height of men in North Korea would be 170.7 cm (5ft 7in)
Explanation:
Because they are a different breed :)
When oxygen is present, glycolysis is followed by
A. lactic acid fermentation
B. alcoholic fermentation
C. photosynthesis
D. the Krebs cycle
Answer: D. The Krebs cycle
Explanation:
If oxygen is available, glycolysis is followed by two processes in the mitochondria -- the Krebs cycle and oxidative phosphorylation, respectively -- that further increase ATP yield.
When oxygen is present, glycolysis is followed by
Answer:
D. the Krebs cycle