Answer:
https://answersingenesis.org/biology/plants/
Explanation:
This should help!
Are viruses composed of cells?
Answer:
No
Explanation:
Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid. Certain virus strains will have an extra membrane (lipid bilayer) surrounding it called an envelope.
Answer:
Viruses are not composed of cells
Which of the following is an example of terrestrial plant
a.talahib
b.sea lettuce
c.duckweeds
d.algae
Answer:
algale is the right response
People try to conserve some resources, like fossil fuels, because they are
not replaceable. Why can't these resources be replaced?
A. They must be transported long distances
B. Processes to make them take longer than a human's lifetime
C.No one can afford to buy more of them
D. It is impossible to extract more from the Earth
Answer:
B. processes to make them take longer than a human's lifetime
pls help i need ur guys help pls help me on my science test plsssssssss!
Answer:
1. It can transfer energy through empty space.
Explanation:
Which of the following is the thickest layer of the Earth?
inner core
outer core
mantle
crust
Through the process of transformation, bacteria cells can take up plasmids that contain recombinant DNA
TRUE or FALSE
Answer:
true
Explanation:
Which one of the following plates consists of both ocean and continenal crust?
a. South American
b. Pacific
c. Nazca
d. Cocos
Answer:
b
Explanation:
.Which has more thermal energy, 500mL of boiling water or 250mL of boiling water?
What is one reason why rock layers are not horizontal?
They were formed at an angle.
They were formed veritcally.
The area was once covered by water.
A force pushed the rock layers after they were formed.
Answer:
the last one, as they would be pushed together either going up or down when tectonic plates shift.
Explanation:
Answer: A force pushed the rock layers after they were formed.
Explanation:
8. Plant cells have some parts that animal cells do not have. Plant cells have __________, __________, __________.
9. Most of the organelles in plant and animal cells are inside the __________
10. _________ cells have a “box” shape,
11. __________ cells are more round
12. The ____________ in plant cells provide an additional layer outside the cell membrane for support the plant.
13. The cell wall separates the inside of the _________ cell from the environment.
14. __________ in plant cells are responsible for performing the process of photosynthesis. If they stop working, photosynthesis will not be taking place in the plant.
15. Plant cells have a ________________ that stores water, nutrients, food and waste products.
16. The________________ are the organelles that makes proteins.
17. Cells move water and materials through the _____________.
Answer:
8. Plant cells have some parts that animal cells do not have. Plant cells have ___cell wall_______, __chloroplast________, ___large vacuole_______.
9. Most of the organelles in plant and animal cells are inside the __cytoplasm________
10. __Plant_______ cells have a “box” shape,
11. ___animal_______ cells are more round
12. The ___cell wall_________ in plant cells provide an additional layer outside the cell membrane for support the plant.
13. The cell wall separates the inside of the __plant_______ cell from the environment.
14. __chloroplast________ in plant cells are responsible for performing the process of photosynthesis. If they stop working, photosynthesis will not be taking place in the plant.
15. Plant cells have a ____vacuole____________ that stores water, nutrients, food and waste products.
16. The_ ___ribosomes____________ are the organelles that makes proteins.
17. Cells move water and materials through the __process of Diffusion___________.
Punnett squares provide an easy way to predict the possible genotypes for an offspring, but it is not practical to perform a Punnett square analysis on all possible combinations of all members of a population to predict what the population might look like in the future.
a. True
b. False
Answer:
True
Explanation:
There are certain limitations associated with the Punnett Squares. They are not useful in case of complex genetic inheritance such as linkage between two genes. In case of linkages it becomes difficult to estimate the distribution of genotypes and phenotypes. For example in case of Nail-patella Syndrome and gene associated with blood group two genes lie on the same chromosome in close vicinity and hence there are high chances of inheritance of these traits in the offspring from the parent thereby causing random distribution of the two traits. This random distribution cannot be captured through punnet square.
The same problem is associated in case where a single gene is determined by multiple genes with graded effects of each gene.
PLEASE HELP!!
Describe an example of how gene expression is regulated.
Answer:
Gene regulation is how a cell controls which genes, out of the many genes in its genome, are expressed. These different patterns of gene expression cause your various cell types to have different sets of proteins, making each cell type uniquely specialized to do its own job.
Explanation:
An example of gene expression is the differential expression of the genes in human cells. All types of human cells contain the same DNA however they have very different structures and functions to perform. Liver cells and neurons present in the brain contain the same DNA yet they are very different in structure and function.
What is Gene expression?Gene expression is the process through which information from a gene is used in the synthesis of a functional gene product which enables it to produce end products, such as proteins or non-coding RNA molecules, and ultimately affect a phenotype, as the final effect of their expression.
Gene regulation is the process through which a cell controls which genes, out of the many genes in its genome, are expressed in the body. These different patterns of gene expression can cause various cell types to have different sets of proteins, thus making each cell type uniquely specialized to do its own job from the other.
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Make the mRNA strand that would be made from this DNA
CTT CGA TGA ATT CCA GCC CTC CTT TTG ATC CTT CCA CCT AGC ATC CGA TTG CTA ACT GTA CGC ATC
Answer:
GAA GCT ACT TAA GGT CGG GAG GAA AAC TAG GAA GGT GGA TCG TAG GCT AAC GAT TGA CAT GCG TAG
Explanation:
6. In a population of angiosperms in Hardy-Weinberg equilibrium, the allele, C, conferring red flowers is completely dominant to the allele, c, causing white flowers. If allele C is at frequency 0.7 in the population, what is the expected frequency of red flowered plants
Answer:
The correct answer is - 0.91.
Explanation:
Given that C is dominant over c with an allelic frequency of 0.7. The sum of the frequency of dominant alleles and the frequency of heterozygous alleles in this H-W population of angiosperm will be the expected frequency of red-flowered plants.
The frequency of C = 0.7
(p² = dominant allele frequency)
Then, the frequency of dominant genotype CC would be = 0.7×0.7 (p² = dominant allele frequency)
As we know that P + q = 1
then q = 1 - p
q (frequency of recessive allele) - 1 - 0.7
q = 0.3
Then frequency of heterozygous genotype Cc= 2pq
= 2×0.7×0.3
= 0.42
The frequency of red flowers = freq of CC + freq of Cc
= 0.49 + 0.42
= 0.91
Given that C is dominant over c with the frequency of 0.7
The sum of the frequency of dominant allele and heterozygous alleles in this H-W population of angiosperms expected frequency of red-flowered plants.
frequency of C = 0.7
[tex]p^{2} =dominant allele[/tex]
CC= 0.7 × 0.7
[tex]p+q =1\\q= 1- p\\= -1-0.7\\=0.3\\[/tex]
Then frequency of genoype = Cc= 2pq
= 2×0.7×0.3
= 0.42
[tex]frequency of red flower = freq of CC + freq of Cc[/tex]
= 0.49 + 0.42
= 0.91.
What is Hardy-Weinberg equilibrium?It is a principle that states genetic variation in a population will remain constant from one generation to the next generation in the absence of disturbing factors.
Hence concluded that the frequency of red-flowered plants = 0.91
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A guinea pig with black eyes (B b) is crossed with one that also has black eyes (B b).
Answer:
then we get same type of animal whom have also black eyes (Bb)..
Plants get their energy from the sun through photosynthesis. This energy is trapped in bonds of complex compounds the plants create from carbon dioxide and water. The plants are eaten by animals, and the energy is used for heat and movement. What is the energy transfer that is conducted inside an animal
Answer:
Explanation:
Cellular Respiration.
T or F : HIV is able to make copies of itself without the aid of another organism
True or False
Answer: False. HIV cannot reproduce on its own.
Answer:
False
Explanation:
There are many different varieties of HIV but the main one needs another organism to make a copy of itself
which of the following is NOT a nucleic acid ?
a. DNA
b. mRNA
c. tRNA
d. Protein
Answer:
reverse transcriptase
Explanation:
The following is NOT a nucleic acid is - d. protein as it is a different macronutrient or macromolecule to nucleic acid.
Nucleic acids are macromolecules of a special class found in all living organisms and also in viruses. There are two types of major nucleic acids, DNA or deoxyribose nucleic acid and RNA or ribose nucleic acid.
Nucleic acids play a role in genetic materialnucleic acid helps in protein synthesisRNA is mainly three types mRNA, messenger RNA, tRNA transfer RNA, and rRNA ribosomal RNA.DNA is normally double-strandedProtein on other hand is a different class of macromolecules that perform many roles in the cell such as, structure, function, and regulation.
Thus, the correct answer is - D. protein.
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Frogs, lizards, and birds all have simular arrangment of bones n thier limbs. BOth thier arms and legs have one bone at the top, two bones at the bottom, little bones and then fingers or toes. What does the similarity o the bone struture suggest about these animals?
A. They have a common ancestar
B. They are comparable in size as adults
C. They evolved at the same time
D. They move in the same way
The similarity of the bone structure suggest about these animals should be that they evolved at the same time
What is bone structure?Bones are considered to be the living tissue that comprise of the own blood vessels, and should be made of the various cell, proteins, minerals, etc. In this it enables them for growing, transformation, and repair via the life.
Since both arm and legs should have one bone at the top, so here we considered the option c should be right.
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Which group of organisms can be considered a population
Answer: Is a group of organisms of the same species that interbreed for example a group of robins in North America
A student prepares a cell homogenate from spinach leaves. She performs a cell fractionation experiment to determine the shortest amount time of centrifugation at 2000xg that will yield the highest percentage of chloroplasts in the pellet fraction. She splits the spinach homogenate into 5 equal parts and centrifuges the parts at 2000xg for 0, 5, 10, 15 or 20 min. She then determines the proportion of chloroplasts in the supernatant and pellet fractions. The controlled variable(s) in the student's experiment is/are:_____.
a. proportion of chloroplasts in each fraction.
b. use of same plant homogenate throughout.
c. time of centrifugation in minutes.
d. g-force of centrifugation.
Answer:
b. use of same plant homogenate throughout.
Explanation:
In an experiment, the controlled variable, also called the CONSTANT is the variable that is kept the same throughout the course of the experiment in order not to influence the result or outcome of the experiment.
In this question, a student performs a cell fractionation experiment to determine the shortest amount time of centrifugation (manipulated variable) at 2000xg that will yield the highest percentage of chloroplasts (responding variable) in the pellet fraction. In this experiment, the variable being controlled is same spinach plant homogenate used throughout.
how many continets are found on Earth
Answer:
A lot
Explanation:
am playing there around 195 counties and 7 continets my bad
Answer:
There are seven continents in the world/on earth.
Explanation:
There are 7 total continents in the world, which are - Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America.
Why do scientists think that all modern plants,
animals, and fungi can be traced to protist
ancestors?
Answer: Scientists think that all modern plants, animals, and fungi can be trace to protist ancestors because the protists is the root of all eukaryotic diversity. yw.
What three parts make up the modern cell theory
What will most likely happen if all the chloroplasts are removed from a plant cell?
How many groups of protists are there
Answer:
3 groups.
Explanation:
Each of these three groups have multicellular species and the green and red algae have many single-celled species. The land plants are not considered protists.
Answer:
3 groups
Explanation:
Your job is to write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “Grown Up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the annual family reunion. Your job is to write a story that details their conversation as they all get together and discuss where they “live” and what they now “do.” It is your decision as to the format that you would like to use. For example, you could write a story in paragraph or script formats that identifies the job and location of each tissue. To help with this process, you will want to give each one of your tissues a name.
The tissues you have to include are epithelium, connective, nervous, and muscle tissues. Please answer before Febuary 12, 2021. It has to be a paragraph and give them names. Since this requires a lot of thinking and creativity it is worth 80 points.
Answer: Write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the anual family reunion.Your job is write story that details their conversation as they all get together and discuss where they ” live” and what the now “do”. It is your decision as to the format that you would like to use. For edxample you could write story in paragraph that identifies the job and location of each
Explanation:
The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.
What are Meristem cells?Meristem cells are totipotent meaning they can differentiate to any type of plant cells. Therefore they can produce a variety of plant type depending on epigenetic. However, tissue culture is derived from already differentiated cells. These cells are already determined and can only produce cell type of that plant from which they were derived.
Gene therapy is a method of using genetic material to treat or prevent certain diseases. A common method researchers have found to accomplish this is with vectors. Vectors are essentially vehicles designed to deliver therapeutic genetic material, such as functional genes, directly to cells. A vector-valued function, also called a vector function, is a mathematical function of one or more variables whose extent is a multidimensional vector or a set of infinite-dimensional vectors.
Therefore, The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.
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Question 4
The sodium-potassium pump is involved in establishing the resting membrane potential.
True false question.
True
False
1. What effect does air pressure have on wind movement?
2. What happens to the density of air as it is heated?
3. It’s a hot, sunny morning in a coastal town in South Florida. Warm air is rising up from the land. Large, puffy clouds are forming overhead. Which way do you think the wind will be moving this afternoon, and what do you think will happen to the temperature?
Answer:
1. The lower the air pressure the faster the wind the higher the air pressure the slower the winds
2. When the heat of the air increases the density of the air decreases.
3. The air above the ocean will, therefore, be warmer and of low pressure than that over land which will be cooler and of relatively higher pressure. Winds will, therefore, blow seawards because winds blow from high to low-pressure systems.
Explanation:
which RNA molecule carries amino acids
Answer:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein