Answer:
Although prokaryotic cells appear far less advanced than eukaryotic cells, prokaryotic organisms outperform eukaryotes in many
Explanation:
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Choose all of the statements which describe the difference between the function of the outer coverings in plants and animals: (2 points)
The skin helps protect the animal from weather changes and the environment.
The bark on trees helps turn the leaves toward the sunlight.
The waxy covering on plants reduce water loss in plants.
Group of answer choices
I and II
I and III
II and III
I, II, and III
Answer:
1 , 11 and 111 are correct
An organism has a diploid number of 60. What is the organism's haploid
number?
Answer:
An organism has a diploid number of 60. What is the organism's haploid
number?
Explanation:
The color of an object that humans see is actually the only color of light not __________ by the object.
Answer:
The color of an object that humans see is actually the only color of light not __refracted.________ by the object.
Carbon cycles through the biosphere in all of the following processes EXCEPT
a. photosynthesis
b. burning of fossil fuels
c. transpiration
d. decomposition of plants and animals
25 POINTSSSS!!!!!
In which system of plant do the tissues xylem and phloem work?
In vascular system of plant do the tissues xylem and phloem work
When the concentration of a solution is higher inside a cell than it is outside of the cell, is the solution inside hypertonic,isotonic, or hypotonic?
Answer:
Hypertonic solution
Explanation:
Hypertonic solution refer to the solution of a cell if the solute concentration is higher inside than outside and it cannot cross the membrane. In Hypertonic solution, Water crosses the cell membrane in both directions which result in more b water leaving the cell than entering it. Therefore, a cell place in this solution will shrink due to exosmosis.
Which of the layers of the epidermis is found only in thick skin?
stratum basale
stratum spinosum
stratum corneum
stratum lucidum
Answer:
stratum spinosum
Explanation:
The stratum spinosum is the thickest layer of the epidermis which lies just above the basal layer. The stratum spinosum consists of basal cells that have matured into squamous cells, also known as keratinocytes.
A(n) _____ mutation changes only a SINGLE base.
A. deletion
B. point
C. insertion
D. frameshift
Answer:
B. point
Explanation:
A point mutation changes only a single base. Hope it helps you !!
Use complete sentences to define the following terms or phrases in your own words. but be sure to use your own words!
6. Substrate
7. Active site
8. Catalase
9. Vitamin (include why they are important to enzymes and what this relationship is called)
10. Mineral (include why they are important to enzymes and what this relationship is called)
The relationship of structure to function is one of the major themes in biology. For the following structure/function pairs, describe the structure and then explain how the function is related to the
structure.
Membrane protein structure/active transport or facilitated diffusion
Answer:
Membrane protein is made up of phospholipid bilayer.
Explanation:
Membrane proteins have one or more segments that are embedded in the phospholipid bilayer. This structure helps cells to maintain their shape, carry out changes triggered by chemical messengers, and transport material. Cell membrane have thousands of proteins that are embedded in the cell's lipid bilayer. The proteins present in the cell membrane is responsible for the active transport means use energy to transport molecules and ions across the cell membrane.
Characters are more likely to exhibit continuous variation when:
Answer:
when they are affected by alleles at more than one locus characters are more likely to exhibit continuous variation.hope it is helful for uh and plzz mark me as brainslist ❤❤Characters are more likely to exhibit continuous variation when they are controlled by multiple genes (polygenic inheritance) or by environmental factors, or a combination of both.
What is continuous variation?Continuous variation refers to the variation in a trait that shows a range of values without any clear-cut categories, and it is influenced by multiple factors. Examples of characters that exhibit continuous variation include height, weight, skin color, and intelligence.
Continuous variation can result in a normal distribution curve or bell curve, which shows the frequency of occurrence of a trait within a population. In contrast, discontinuous variation occurs when traits are controlled by one or a few genes and show distinct categories, such as blood type, eye color, or the presence of a genetic disorder.
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In the paired chromosomes, which pair might have two different chromosomes with very different genetic coding?
Answer: X and Y chromosomes.
Explanation:
Chromosome that differs from other chromosomes (autosomes) in shape, size and behavior are called sex chromosome, allosome, heterochromosome or idiochromosome. These sex chromosomes are typical mammalian allosomes and are sex-determining in species in which sex is determined by the XX-XY system. The presence of the XX allosomes determines female sex, while the XY allosomes are for male sex. These chromosomes contain different genes, where some are only on the X chromosome and others only on the Y chromosome, and a few are on both.
The size of the human X chromosome is 164 million bases and currently has 1,170 genes. It is composed of many repetitive DNA segments that do not code for any protein or their function is not known. Only 1.7% of the chromosome codes for functional proteins that are low in length compared to the average length of a human gene. It has a small number of genes known as housekeeping or constitutive -(responsible for the basic maintenance of the cell) and most of the genes it contains are expressed in few tissues or are tissue-specific, which is especially true for those expressed in brain regions. So, the X chromosome is larger and has more euchromatin regions than the Y chromosome which only has genes that code for male sexual development. Since females have two X chromosomes and males have only one, during development in females one of the X chromosomes is inactivated at random in each tissue to make a dosage compensation. Otherwise, females would be expressing twice as many genes as a male. And through inactivation and dosage compensation, both males and females will express the same number of genes.
Dodder plants consist of tangled masses of yellow, leafless vines and contain few chloroplasts. The vines twist around and grow into the stems of other plants and absorb water and nutrients from them. Which statement best describes this relationship?
A)
Dodder plants are parasitic, relying on host organisms for resources.
B)
Dodder plants are consumers, transferring energy to other plants in the ecosystem.
C)
Dodder plants are decomposers, returning organic material back to the environment.
D)
Dodder plants are producers, while the other plants that they attach to are consumers.
Answer:
a
Explanation:
The vines of Dodder plants twist around and grow into the stems of other plants to absorb water and nutrients from them describes that Dodder plants are parasitic plants, relying on host organisms for resources.
What are Dodder plants?This plants are also known as Cuscuta or Amarbel.They are found in temperate and tropical regions.It consist of tangled masses of yellow, leafless vines and contain few chloroplasts.They cannot fulfil their nutrients requirement on their own, so it depends on the other planets making it parasitic plant.What are parasitic plants?"Parasitic plant- plant that obtains all or part of its nutrition from another plant (the host) without contributing to the benefit of the host."Example: Cuscuta, Mistletoe, etc.Hence, the correct option is A. Dodder plants are parasitic, relying on host organisms for resources.
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True or false
An allele is the name given to the position of a gene on a chromosome.
Answer:
false
Explanation:
what is the process of VEGETATIVE PROPOGATION?? PLEASE HELP ME and Thank you so much!!
Vegetative propagation is an asexual method of plant reproduction that occurs in its leaves, roots and stem. This can occur through fragmentation and regeneration of specific vegetative parts of plants.
Water held within plants returns to the atmosphere as a vapor through a process called _______________.
Answer:
tranpiration is the nane of the process
Answer:
Water held within plants returns to the atmosphere as a vapor through a process called _______________. transpiration
why do points on earth travel at different speeds?
Answer:
b
Explanation:
A single messenger RNA strand carries the instructions for multiple genes to create multiple proteins. True or False
Answer:
True
Explanation:
It does carry instructions to create proteins
Answer:
True
Explanation:
carries instructions for assembling amino acids into proteins
HELP HELP AHHHHHHHH Which human activity will most likely contribute to ozone layer destruction?
Answer:
well cutting down trees using chemicals burning foccle fules
Explanation:
In humans, the pelvis and the femur (thighbone) are involved in walking. In whales, the pelvis and femur are...
Answer:
vestigial structures
Explanation:
PLZZ HELP ME In three to five sentences, develop an argument for which style of reproduction you think is more beneficial. Be sure to include as much evidence as possible.(4 points)
heres one
I think that sexual reproduction will be more helpful because it helps genetic variation. It involves the most commonly known trait and gene combination genetics. Sexual reproduction allows for more complicated families.
A comparison of the age of the Earth obtained from radioactive dating and the age of the Universe
based on galactic Doppler shifts suggests that?
A) the Earth was formed after the Universe began
B) the Earth is immeasurably older than the Universe
C) the two dating methods contradict one another
D) The Earth is about the same age as the Universe
A comparison of the age of the Earth obtained from radioactive dating and the age of the Universe based on galactic Doppler shifts suggests that the Earth was formed after the Universe began.
Why do geologists use the radiometric age of meteorites as a guide to the age of the solar system?The meteorites have been isolated in the cold vacuum of space since their formation, so they have seen no significant heating since the time of their formation.
What is the age of the Earth accepted by most scientists today?Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date.
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which 4 hormones are released by the adrenal gland?
Answer:
1. adrenaline
2. cortisol
3. aldosterone
4. epinephrine
2 Sa mga paraan na ipinakilala ng Kagawaran ng Edukasyon ( deped ) tulad ng modular learning, simual learning, blended learning, ete ano ang pin ma? Ipaliwanag kung bakit ito ang napili mong paraan. please po i give you brainliest
Answer:
tanungin mo guro mo hahahah
What percentage of your DNA do you get from either parent ? Explain.
please write me a polar bear slogan
Answer:
Polar bears are cool
Explanation:
like cold
ha
ha
ha
If the population of hawks in this area increases, their prey populations might decrease. Later, with fewer prey, the hawk population might decrease. The prey populations might then increase. This is an example of
Answer:
This question lacks options, the options are:
1. an ecosystem completely out of balance
2. how ecosystems maintain stability over time
3. interaction between biotic and abiotic factors within an ecosystem
4. ecological succession
The answer is 2
Explanation:
An ecosystem comprises of biotic organisms, abiotic substances etc. that interact with one another. The biotic components of an ecosystem are known to feed on one another in order to obtain energy. However, stability of an ecosystem must be maintained between predators and prey or else there will be extinction of many species of organisms.
One way balance in an ecosystem is maintained over time is by the increase and decrease in population of predators and preys in an ecosystem. For example, If the population of hawks (predator) in an area increases, their prey populations might decrease because there will be less predation.
Also, at a later time, when there is a fewer population of prey, the hawk population might decrease because there is less food to eat. The prey populations might then increase.
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Answer:
Mammal 2 and 4 are most related, why?
Explanation: They have TCT, CAG, CTG and CA, the only ones it doesn't have is the last ones, A and G, making it the only difference. 1 has 2 differences to 2, 3 differences to 4, and 3 has 2 differences as well, therefore 2 and 4 have the least differences.
Answer:
2 and 4
Explanation:
You can see their patterns match except for the last letters of 2 and 4
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Did the Earth change to support life or did life change the Earth?
Be sure to support your answer with researched
EVIDENCE.
Answer:
At first, the Earth was not even able to support life. There was no oxygen in the atmosphere, and Earth's surface was extremely hot. Slowly, over millions of years, the Earth changed so that plants and animals could begin to grow. Living things then changed the Earth even more.
Cellular respiration is almost the reverse of photosynthesis. Which compounds are produced in the chloroplast and used by the mitochondria?
A. glucose, oxygen, carbon dioxide
B. water, carbon dioxide, ATP
C. carbon dioxide, ADP, glucose
D. glucose, oxygen
Answer:
the anwer is the letter B