Which best defines a gene?
A. A gene is a unit of protein that contains the
genetic code.
B. A gene is a unit of DNA that contains code
for the creation of one protein.
C. A gene is a unit of DNA that contains the
code for the creation of amino acids.
D. none of the above
I. Define the following terms:
A. Population
B. Population density
C. Carrying Capacity
D. Exponential Growth
E. Density-independent limiting factor
F. Logistic Growth
G. Density-dependent limiting factor
II. Enumarate at least three(3) factors that affect population growth.
III. Diffrentiate exponential growth and logistic growth.
❌NONSENSE➪ REPORT❌
➡️Please answer it seriously i really need it right now⬅️
Answer:
I. Define the following terms:-
Population ➝ the world population is the total number of humans currently living.
Population density ➝ is a measurement of population per unit area or volume. It is frequently applied to living organisms, most of the time to humans.
Carrying capacity➝ is the average population density or population size of a species in a habitat.
Exponential growth➝ is a process that increases quantity over time. It occurs when the instantaneous rate of change.
Density-independent limiting factor➝ is any force that affects the size of a population of living things.
Logistic Growth ➝ is a population's per capita growth rate stays the same regardless of population size, making the population grow faster as it gets larger.
Density-dependent limiting factor➝ is a limiting factor of a population wherein large, large dense populations are more affected than small, less crowded ones ex. predation, competition, food supply.
II. Enumarate at least three(3) factors that affect population growth.
Birth rates Death rates ImmigrationIII. Differentiate exponential growth and logistic growth.
Exponential growth is a growth in population wherein the number of individuals increases. Logistic growth entails exponential growth in population along with a growth rate that is in a constant state. As the population comes to its carrying capacity, the growth rate then decreases significantly.
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In which structure do sperm cells develop?
A. Epididymis
B.scrotum
C.testes
D.vas deferens
Answer:
C
Explanation:
You could literally search that up. It's correct though.
"Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells."
I Need help please giving BRAINLIST and a like a 15 points
Which organ systems
contain the liver list 4
When the proctor was handing out this test, you noticed that your respiration rate and heartbeat increased, your palms got sweaty, and your hand shook a little. Your pre-test behaviors were triggered by the:
In a population of goldfish, individuals can be colored orange, white, white with orange spots,
orange with black spots, and orange with white spots. What is the best explanation for these
color differences?
kahit kahit po ayaw mona kana kana aaaa
A hybrid offspring of a male lion and a tigress is a _________.
Plz answer I will add you as brainlest
Answer:
Such offspring are called hybrid offspring. Furthermore; within such hybridization process, if male is a lion and female is a tiger (tigress) then the hybrid offspring is termed as a liger. Vice-versa; if the male is a tiger and the female is a lion (lioness) then the hybrid offspring is called a tigon.
Answer:
Liger
Explanation:
Describe TWO environmental consequences, other than those related to the loss of boreal forest habitat, that result from the extraction of bitumen or the transportation of synthetic oil to customers.
Answer: The greenhouse gas emissions from the extraction of bitumen and the use of large quantities of water.
Explanation:
Bitumen is a natural flammable organic matter formed from kerogen in the process of petroleum generation, which is soluble in carbon disulfide. Asphalt and mineral wax are examples of hydrocarbons which are part of bitumen. Conventional oil is extracted by wells while oil sands deposits are extracted using surface mining sectioning techniques, or are flowed to wells by in situ techniques that reduce bitumen viscosity by steam and/or solvents. So, unlike crude oil extracted in oil wells, bitumen requires an open-pit mining operation, in which large tracts are washed with a mixture of water and chemicals to separate the bitumen from a mixture of sand and clay.
Two consequences of this practice are:
The greenhouse gas emissions from the extraction of bitumen are larger than the extraction of conventional oil. The emissions produced contribute to enhance the greenhouse effect and cause global warming. The greenhouse effect occurs when certain gases retain part of the energy emitted by the earth's soil when heated by the sun's radiation. This phenomenon occurs naturally, and thanks to it, the average temperature of the Earth is about 14º C (57.2 °F). The problem occurs when these greenhouse gases increase in the atmosphere and the amount of energy that is not released into space also increases and, with it, the Earth's temperature. The extraction of bitumen from oil sands requires the use of large quantities of water, and even though water used here can be recycled, only a small amounts is returned to the natural cycle. Also, spills from the transportation of the oil could damage soils and waterways, increasing water pollution. This toxic water could get into surface.What term describes the length of one complete wave cycle?
Answer: One Wavelength
The syntenic genes B and T are linked. A cross between two parents, with genotypes BBtt and bbTT, produces F1 progeny with the BbTt genotype. What are the possible arrangements of alleles on the F1 progeny's chromosomes
Answer: options related to your question attached below
answer : Bt/bT
Explanation:
Determine the Possible arrangements of alleles on the F1 progeny's chromosomes
Parents : BBtt and bbTT
when BBtt and bbTT crosses ( i.e. BBtt * bbTT )
BBtt * bbTT ( parents crossing )
= Bt/bT ( possible arrangement )
1. Based on the model, which of the pairs of
species most likely have the greatest number
of differences in their DNA and protein
sequences?
a. Radish and seaweed
b. Banana and lemon
c. Onion and radish
d. Banana and onion
Based on the model, Banana and lemon are the pairs of species most likely have the greatest number of differences in their DNA and protein sequences. Thus, option B is correct.
What is DNA?
DNA contains the genetic information needed to determine the structure and function of living organisms. Each DNA molecule is found on a chromosome, and the segments of that DNA molecule are genes.
In somatic cells -such as nerve and muscle cells- the DNA sequences are the same, but what determines the synthesis of different proteins is the information that the genes have, i.e., fragments of DNA contained in a cell.
For this reason, nerve cells have a gene that allows them to synthesize the enzyme cholinesterase, while muscle cells have a gene that codes for myosin, even though they both possess the same DNA sequence.
Therefore, Based on the model, Banana and lemon are the pairs of species most likely have the greatest number of differences in their DNA and protein sequences. Thus, option B is correct.
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Saprophytes play a major role in Nitrogen cycle. Justify ?
Answer:
yes now mcq partner sso explain is nit nessesary
a. What is the recombination frequency of the genes R and S if Q and S have the highest recombination frequency?
️What are any 3 differences between ecosystem biodiversity and genetic biodiversity?help.....
Answer:
Genetic diversity are the differences in DNA among individuals within a species or population. Species diversity is the number or variety of species in the world or in a particular region. Ecosystem diversity is the number or variety of ecosystems within a particular area.
The rising of bread dough is the result of The rising of bread dough is the result of oxygen being released. carbon dioxide produced by fermentation. biotin production. oxidative phosphorylation.
Answer:
Fermentation
Explanation:
Fermentation is the process whereby carbohydrates are converted to acohol or acid by the activities of some enzymes. During the process of fermentation, carbon dioxide is produced and it is found as tiny pockets of air inside the bread dough. This make it to rise. The alcohol produced evaporates later during the bread making process.
Why do organisms need both mitosis and meiosis to process?
Explanation:
Both mitosis and meiosis processes are extremely important because they are the division of chromosomes and without this division reproduction would not occur. Cell division plays an important role in the life cycle of a cell allowing the cell to grow, develop and then reproduce.
Mitosis and meiosis are cell divisions that are needed by organisms because of its importance to them.
Mitosis is a type of cell division where by a single cell divides to form two identical daughter cells.
The importance of mitosis to organisms include:
They help in repairing the damaged cells,They help in growth and development of organisms.Meiosis is a type of cell division where by a single cell divides two times to produce four cells.
These four cells contain half the original amount of genetic information of the divided cell.
The importance of meiosis to organisms include:
It ensures the possibility of sexual reproduction in organismsIt leads to production of genetic variation in organisms.Therefore due to the importance of meiosis and mitosis listed above, they are needs to organisms.
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35. When substances move in and out of cells using energy this is called:
a. active transport
b. passive transport
c. activation energy
d. selective transport
Answer:
active transport
Explanation:
Active transport is the movement of particles from a region of low concentration to a region of high concentration against the concentration gradient that requires energy.
Which cloud is found ahead of a cold front, but behind the warm front?
Answer:
I believe it's cirrus clouds.
Explanation:
Bacteria use this form of reproduction.
A. Asexual reproduction
B. Sexual reproduction
C. Both of them
Answer:
A asexual reproduction
In meiosis II, _____. View Available Hint(s) In meiosis II, _____. chromosomes cross over to exchange genetic information chromosome number is reduced from diploid to haploid homologous chromosomes pair to ensure their even distribution to daughter cells sister chromatids are separated
Answer:
The correct answer is - sister chromatids are separated.
Explanation:
Meiosis is divided in two parts meiosis I and meiosis II. In the later part that is meiosis II is characterized by forming four haploid gametes by separating the sister chromatids in the two daughter cell.
Crossing over takes place in meiosis I that leads to recombination and reduces the chromosome number from diploid to haploid homologous chromosomes and then enters into meiosis II.
PLZZ HELP ME THIS IS AN ASSIGMENT I WANT YOU TO DO IT IN YOUR OWN WORDS AND NO SCAMMED
1.)Skilled Scientist level from Rubric: Student used critical thinking skills and evidence to establish a possible relationship among organisms and a possible evolutionary history of traits.
How many different species are there?
2.) List the different genus groups:
3.) Explain in your own words the order in which the creatures’s traits may have evolved starting from the first likely trait. (HINT: Which trait is the most common across the creatures? Be sure you list ALL of the physical features from the key above from most common to least common)
Answer:^^^^
Explanation:
above me is correct!
Pietro has two dogs that are related, and he wants to understand why one of the dogs has tan fur and the other has brown fur.
Which pattern of inheritance would explain the different fur color in the related dogs?
Polygenic inheritance is simply a form of inheritance whereby the trait of the individual or the animal is gotten from the cumulative effects of several genes. In such case, there are many genes which control the expression of the trait. This is quite different from the monogenic inheritance whereby the trait is as a result of the expression of just only one gene.
Since Pietro has two dogs that are related, and one of the dogs has tan fur and the other has brown fur, then this means there's more than one gene which is expressed in this case.
In conclusion, the answer to the question is polygenic inheritance.
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Agriculture activities are precursors for environmental degradation without human and nation benefit discuss
Answer:
Yes.
Explanation:
Yes, Agriculture activities are precursors for environmental degradation without human and nation benefit because these activities are responsible for the soil degradation. If we skip the human and nation benefit from these agricultural activities, there is disadvantage of these activities which destruction of soil. The tillage practices loosen the soil that leads to the erosion of soil through wind.
what are possible consequences of complete dominance
Explanation:
In complete dominance, the effect of one allele in a heterozygous genotype completely masks the effect of the other. The allele that masks the other is said to be dominant to the latter, and the allele that is masked is said to be recessive to the former.
Part 2
What is the strongest muscle in your body?
Here is a pick of the 5 strongest muscles.
Answer glatus m.
Explanation:
What is the building block of all
living things?
3.
A the cell
the chloroplast
the nucleus
D the cytoplasm
2. Which of the following statements is true?
Answer:
With no doubt ,
The cell is the building block of all living things.
What type of mutation occurs when a stop codon replaces an amino acid codon
The second law of thermodynamics states that entropy of a system tends to
Explanation:
The second law of thermodynamics states that the total entropy of a system either increases or remains constant in any spontaneous process; it never decreases. ... Heat cannot transfer energy spontaneously from colder to hotter, because the entropy of the overall system would decrease.
what is photosynthesis
Answer:
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunlight, so we eat plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae, and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the green pigment found in the chloroplasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
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What is the thin, whitish skin layer on the top of bones called?
1. periosteum
2. bone marrow
3. hard bone
4. compact bone
Answer:
The answer is periosteum
Explanation:
I dont really have an explanation i had this wuestion and just guessed an got it right
Answer:
periosteum is correct to the person above
Explanation: