Answer:
b. demonstrates that genetic differences are often responsible for phenotypic differences among the members of a population.
Explanation:
Artificial selection: In biology, the term "artificial selection" is also referred as "selective breeding" and is determined as a process whereby an individual uses plant breeding and animal breeding to create "phenotypic traits" selectively by choosing specific plant or animal females and males will ought to reproduce sexually and can produce offspring.
In the question above, the correct option is b.
Brainstorm ideas for ways people could use sunflowers to reduce soil contamination by heavy metals?
I need help
Answer:
Seeds are being delivered to every mailbox in town, all in hopes of purifying the soil using a technique called phytoremediation.Sunflowers can absorb many different toxins and chemicals from the soil and then store those chemicals at the cellular level. Once they're absorbed, they won't leach back out again.
Describe how water forms hydrogen bonds and describe one specific
property of water that results from hydrogen bonds.
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.
_____states that each rock layer isolder than the one above it.
Answer:
sup
Explanation:
sup
What is seed dispersal?
A. the creation of seeds from sperm and eggs
B. the growth of a new plant
C. the movement of a plant's offspring away from the parent plant
D. the transfer of pollen from one plant to another
Seed dispersal is the process by which seeds of a particular plant is conveyed through a medium to an entirely different location for germination. These mediums could be wind.....water etc
What is the major factor that determines
the distribution of biomes on the planet?
Answer:
Mainly the terrestrial biomes are determined by temperature and precipitation of the localities.These factors determine the climate and finally the growing season, biodiversity, soil qualities, etc.
Explanation:
Please mark me as brainliest please
Which is an example of obstinate behavior?
Carmen plays her favorite video game over and over.
Carmen refuses again and again to clean her room.
Carmen takes the same route to school every morning.
Carmen leaves the pantry doors open when she fixes her breakfast.
Answer: B. Carmen refuses again and again to clean her room. Obstinate means to refuse to change your opinion, and REFUSING to clean your room seems to fit that description, keyword being refuse.
What happens if your hypothesis is incorrect
Answer:
Your hypothesis will not always be right because it only comes true with a little information. If you are sure it is I recommend looking for more information. Your hypothesis may be incorrect but you might still find correct information later on in your search.
Explanation:
Hope this helped! I'm not really sure if this is true but this is just my opinion.
One trait a plant can have is either red leaves (R) or brown leaves (r). Another
trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has
the genotype RrTt. What is the phenotype of this plant?
Answer:
its phenotype will be such that:
·It will have red leaves
·and tall stem.
Explanation:
As red leaves R is dominent allele and tall stem T is also.So the red colour of leaves and tallness of stem will be the dominent traits.
Practically speaking, how would you determine that Na + influx into a cell underlies the early current? Group of answer choices Remove Na + from the extracellular compartment and assess the early current under new conditions. Use the voltage clamp method to measure the current. Remove K + from the intracellular compartment and assess the early current under the new conditions. Treat the cell with tetraethylammonium. Replace intracellular Na + with its radioactive form and trace its movement across the membrane.
Answer:
Remove Na + from the extracellular compartment and assess the early current under new conditions
Explanation:
Na+ is a critical ion that influences the action potential in nerve cells. During the transmission of an impulse, the cell membrane is open so ions can flow through it, i.e., positively charged ions such as sodium ions (Na +) move within the cell, while negatively charged ions move outside the cell. This process produces a change in the action potential by rapidly increasing the positive charge in the nerve fiber, being thus the impulse propagated when this charge reaches +40 mv. In consequence, the effects of Na + on the single-channel current can be analyzed by removing positive ions and determining the change in the reversal potential of this channel.
✓
2.
Find the sum of 4.5 mm and 24.4 mm.
A. 6.9 mm
B. 28.9 mm
C. 30mm
D. 29 mm
Answer:
b. 28.9mm
Explanation:
PLEASE ANSWER URGENTLY!!
Whilst bushwalking, Brian begins to feel chafing sensation in his thighs. In order to perceive this chafing, neural impulses must travel in one direction – from his (skeletal muscle, skin, brain, spinal cord) to his (brain, skin, spinal cord, skeletal muscle) This information would travel via (GVE,GVA,GSA,GSE) neurones.
WHICH ONE OF THE OPTIONS IN THE BRACKET
Answer: Skin; Brain, GSA - General Somatic Afferent
Explanation:
Whilst bushwalking, Brian begins to feel chafing sensation in his thighs. In order to perceive this chafing, neural impulses must travel in one direction – from his skin to his brain. This information would travel via GSA neurones.
The peripheral mechanoreceptors which are found on the skin and used to detect movement will detect the chafing and send it to the brain.
This information will be received by the brain through General Somatic Afferent neurons which are spread across the body and have the primary function of detecting touch and temperature.
How did Louis Pasteur help disprove spontaneous generation?
Answer:
Louis Pasteur devised a way to flask that allowed oxygen in, but prevented dust from entering. The broth did not show signs of life until he broke off the neck of the flask allowing dust, and therefore microbes, to enter.
Explanation:
Hope that helps! UnU
If the amoeba is being viewed with a low power microscope with a 4.5 mm field of view, what is the estimated longest length of the organism? Show your work.
Answer:
sorry me not know
Explanation:
What characteristic sets the planets apart from the stars, Sun, and Moon?
Answer:
for a celestial body to be a planet of the solar system, it must meet three conditions: it must be in orbit around the Sun, have been molded by its own gravity into a round or nearly round shape, and have “cleared the neighbourhood around its orbit,
Explanation:
tropical rain forests, grass land and desserts are know for?
Which of the following forests contains 50% of terrestrial plants and animal species?
Answer:
This question lacks options, they are:
a)Cold forest
b)Tropical forest
c)Temperate forest
d)Cloud forest
e)Alpine forest
The answer is B. Tropical forest
Explanation:
Tropical forest is one of the forests found in nature. The tropical forest receives the best environmental conditions in terms of vegetation growth. Hence, it is said to contain the most diverse organisms in nature. This means that tropical forests holds more species of terrestrial organisms than any other forest or biome.
Therefore, tropical forests are believed to contain 50% of the Earth's terrestrial plants and animal species due to their biodiversity richness.
What do scientists call all of the compounds that contain carbon and are found in living things? O organic O inorganic O acidic O nonacidic
Answer:
A - Organic.
In clover plants, the pattern on the leaves is determined by a single gene with multiple alleles that are related in a dominance series. The gene is not pleiotropic. Seven different alleles of this gene are known; an allele that determines the absence of a pattern is recessive to the other six alleles, each of which produces a different pattern All heterozygous combinations of alleles show complete dominance
a. How many different kinds of leaf patterns (including the absence of a pattern) are possible in a population of clover plants in which all seven alleles are represented? phenotype that could be represented by only a single genotype? you can identify a few plants representative of all possible pattern types. Explain this finding.
b. What is the largest number of different genotypes that could be associated with any one phenotype? Is there any
c. In a particular field, you find that the large majority of clover plants lack a pattern on their leaves, even though you can identify a few plants representative of all possible pattern types.explain this finding
Answer:
The correct answer is -
a. 7
b. 7 (p1p1, p1p2, p1p3, p1p4, p1p5, etc
c. p7 is abundant
Explanation:
According the question the dominance of the big leaves is p7 > p6 >p5 >p4 >p3 >p2 >p1 where 1 represent least dominance and 7 represent most dominance
let represent the phenotype with the numbers 1 to 7 and genotype with a combination of these numbers so the genotype in respect of phenotype would be :
p7p7,p7p6, p7p5, p7p4, p7p3, p7p2, p7p1 - most dominant 7
p6p6, p6p5, p6p4, p6p3, p6p2, p6p1 - 6
p5p5, p5p4, p5p3, p5p2, p5p1 - 5
p4p4, p4p3, p4p2, p4p1 - 4
p3p3, p3p2, p3p1 - 3
p2p2, p2p1 - 2
p1p1- 1 least dominant
Thus, there are 28 different combinations or patterns of genotypes. 7 phenotypes patterns.
Carries amino acids to the ribosome?
Explanation:
the answer is;
transfer RNA (tRNA)
I open and close so, that things can go in and out. Which organelle do I closely represent. Cell membrane, cell wall, chloroplast, large central vacuole
why does a muscle cell have more mitochondria than other cells?
Answer:
muscle cell, sperm cell,apical meristem cell, liver cell and kidney cell
Photolysis is a part of which cycle? a. phosphorus b. oxygen c. nitrogen d. carbon
Answer:
B on edge! Oct. 28 2020!
Explanation:
When an atom takes on electrons, it will have which of the following?
a positive overall charge
a negative overall charge
a neutral charge
no charge
Answer:
it would have a positive charge
Explanation:
hope this helped
Compare mitotic and post-mitotic cells (define, give example of each).
Answer:
Mitosis is a process where a single cell divides into two identical daughter cell.
EXAMPLE ----- the way the skin cells covering a child's body all multiple when they are growing.
A mature terminally differentiated (TD) cell no longer able to undergo mitosis is defined as post mitotic cells.
EXAMPLE-------- mature neurons and mature multiple cells.
HOW IT HELPS......
Eukuaryotic cells are different from prokaryotic cells because eukaryotic cells
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
Hope this helps :)
please help this is science not really biology the page that is like a peach color are fossils or different layers of rocks with fossils ill also brainlist
Answer:
The fossil would be approximately 3.7 million years old
Explanation:
WILL GIVE BRAINLIST PLZ HELP
When the minerals within a rock dissolve in water, what happens to the mass of the rock?
A. The mass of the rock decreases because the minerals are now in the water
B. The mass of the rock increases because new compounds are created in the water.
C. The mass of the rock remains unchanged because the minerals disappear
Answer:
answer is a.the mass decrease
Help right answer please!!What does the genotype for a trait BB represent?
Each letter represents the dominant allele inherited from each parent.
Both letters represent the dominant allele inherited from the mother.
Both letters represent the recessive allele inherited from the father.
Each letter represents the recessive allele inherited from each parent.
Answer:
Each letter represents the dominant allele inherited from each parent.
All of the biological macromolecules found in organisms contain hydrogen oxygen and carbon. However there are distinguishing features of each. Which of the following could be used to differentiate between a carbohydrate and a nucleic acid
Answer:
Carbohydrate molecules contain only carbon, hydrogen and oxygen atoms, whereas, nucleic acid molecules also have a nitrogen base and phosphate group.
I got this question correct
In pea plants, flower color is controlled by a pair of alleles where purple (P) is dominant to white (p). Stem length is controlled by another pair of alleles where tall (T) is dominant to short (t). These two allele pairs segregate independently. Suppose you have a pea plant that has purple flowers and tall stems and you wish to carry out a testcross in order to determine its genotype. Complete the predictions using the correct terms.
Complete question:
In pea plants, flower color is controlled by a pair of alleles where purple (P) is dominant to white (p). Stem length is controlled by another pair of alleles where tall (T) is dominant to short (t). These two allele pairs segregate independently. Suppose you have a pea plant that has purple flowers and tall stems and you wish to carry out a testcross in order to determine its genotype. Complete the predictions using the correct terms.
1. In order to carry out the testcross, you should cross your original pea plant with another pea plant whose phenotype is -------
2. If you examine 100 F₁ plants from the testcross and find that they all have purple flowers with tall stems, you should conclude that the genotype of your original pea plant is -------
3. If you examine 100 F₁ plants from the testcross and find that 44 have purple flowers with tall stems and 56 have purple flowers with short stems, you should conclude that the genotype of your original pea plant is -------
4. If you examine 100 F₁ plants from the testcross and find that 53 have purple flowers with tall stems and 47 have white flowers with tall stems, you should conclude that the genotype of your original pea plant is -------
5. If you examine 100 F₁ plants from the testcross and find that 23 have purple flowers with tall stems, 26 have white flowers and tall stems, 24 have purple flowers with short stems, and 27 have white flowers with short stems, you should conclude that the genotype of your original pea plant is --
Note: You will find the complete answer and explanation in the attached file "peaplants1" due to technical problems.
