gametes are cells used to sexual reproduction. they are haploids and that means they have just one set of chromosomes (most of the cells of our body have 2 sets). that kind of cells is produced mainly by meiotic division of the gamete's stem cell (called oogonium or spermatogonium) and that's why meiosis usually leads to the production of gametes. gametes are haploids so that they could combine (egg with sperm cell) and create the whole new organism (adult organism is almost always diploid).
How does artificial selection differ from natural selection? Choose all that apply.
O During artificial selection, the mating pairs are selected by humans, not the organisms.
O The outcomes of artificial selection are predictable.
O Artificial selection requires variety in a population.
O Artificial selection does not help a population adapt to its environment.
Answer:
All answers should be selected.
Explanation:
Artificial selection means humans select the mating pairs which makes the outcomes predictable. Variety is required because it is how humans can "customize" the traits of an organism. However, it does not help a population adapt to its environment because these traits are made for human satisfaction, not the survival of an organism.
We’re can the nuclear pore be found
Answer:
The nuclear pore is a protein-lined channel in the nuclear envelope
Explanation:
All of the cells have__________ DNA
A. Identical
B. Different
Answer:
A. Identical DNA
is the answer
in cellular respiration where do the products go?
Answer:
The products of cellular respiration are carbon dioxide and water. Carbon dioxide is transported from your mitochondria out of your cell, to your red blood cells, and back to your lungs to be exhaled.
What is the relationship between ATP and mitochondria?
Answer:
mitochondria produces energy in the form of ATP molecules
Sam is riding his bicycle, and allows his little
brother Mike to ride on his rear wheel pegs.
This is an example of...
A. Mutualism +
B. Commensalism
C. Consumerism
A group of mice becomes separated by the formation of a river. Over time, the northern mice became smaller and whiter, while the southern mice became larger and browner. This is an example of:
Answer Choices:
-divergence
-homology
-gigantification
-industrial melanism
This is an example of gigantification.
What is meant by evolution?
Evolution is the change in the features of a species over several generations and depends on the procedure of natural selection. The theory of evolution is based on the idea that all species are related and gradually change over time.
Thus, this is an example of gigantification.
To learn more about evolution click here:
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According to the food web shown above, what is the relationship between the wheat, the grasshopper, the frog, and the snake?
A. The snake directly consumes the frog, the grasshopper, and the wheat.
B. The grasshopper consumes the wheat, and the snake consumes the frog, but there is no connection between the other organisms.
C. The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
D. The wheat is directly consumed by both the grasshopper and the frog, and the frog and the grasshopper are directly consumed by the snake.
Answer:
The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
Explanation:
A food web is a model that can be used to better understand the feeding relationships between organisms in an ecosystem. Arrows in a food web start at a food source and end with the consumer.
So, in the food web shown in the question, the wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
Answer:
Explanation:
what is the message of your study of the symbol of hypothetical elements?
illustrate the cellular respiration pathway
Explanation:
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, the citric acid cycle, and the electron transport chain. ... In order to move from glycolysis to the citric acid cycle, pyruvate molecules (the output of glycolysis) must be oxidized in a process called pyruvate oxidation.
Plants carry out many physiological processes. Each process requires specialized structures within the plant. These structures are involved in various processes helping the plant to function and keep the plant alive. In which process is the flower most involved?
Answer:
Photosynthesis is the process...
Explanation:
lt is because Photosynthesis is the process that enables plants to make their own food .
Your lab partner is attempting to explain the model above in her lab report. She asks you to proofread her explanation. Examine each of the statements. What information is incorrect. Choose all that apply
Answer:
B and C on usatestprep
Explanation:
B. During translation, the genetic code in mRNA is read and used to put nucleotides in place to make a protein.
C. DNA contains all of the instructions an organism needs to live...
Answer: DNA contains all of the instructions an organism needs to live. DNA must travel to the ribosome where its code is read to make proteins.
During translation, the genetic code in mRNA is read and used to put nucleotides in place to make a protein.
Explanation:
There are many stars in the; our sun is one of them during the day, we cannot see the other stars in the sky. However, at night, we can see the other stars in the sky which is a reason why we only see our sun during the day time and other stars at night? A. The sun is the biggest star B. The sun is the closest to earth C. The sun is the brightest star D. The sun has the most gravity
Answer:
c
Explanation:
There is only one copy machine at your office. You have to make 1000 copies of an expense report. After you begin copying, two other employees show up in the copy room. Each has to make only 10 copies each. What is the proper etiquette in this situation?
a.
Finish making your copies and then let your coworkers make theirs.
b.
Tell your boss that you need another copy machine
c.
Let your coworkers do their copies and then finish your own.
d.
Let one of your coworkers make their copies before finishing your own.
The answers to the Quiz.
1. D. Make the decision
2. C. Respect
3. B. It challenges their own ideas
4. C. Let your coworkers do their copies and then finish your own.
5. C. Stereotypes
6. B. Respected Professionals
7. C. Respect
8. C. Reject it
9. A. Solution
10. C. Ethnicity
Edge 2021
HELP!!!! 50PTS!!!!!!
A species of fish is unintentionally introduced into a marine ecosystem. The species has a similar diet to an existing fish species, creating competition for food. Which of the following must occur for the existing species to be more resilient in the environment? (3 points)
Individuals within the existing species' population must evolve traits that provide a survival advantage.
Individuals should have less genetic diversity to become more similar and evolve in the same direction.
Natural variations in phenotype must be present in the existing species' population.
The existing species must reduce its rate of reproduction to produce only the most fit offspring.
What makes the crust move?
A. Motion in the inner core
O B. Motion in the mantle
O C. Motion in the outer core
O D. Motion in the moon
please let me know, thank you!
Answer:
A
Explanation:
Answer:
B
Explanation:
What type of cells are found in your body?
Answer:
There are over 200 different cell types in the human body.
Explanation:
Types of cells in the human body.
Stem cells Embryonic stem cells Adult stem cells
Muscle cells Skeletal Cardiac Smooth
Cartillage cells Chondrocytes
Bone cells Osteoblasts Osteoclasts Osteocytes Lining cells
Skin cells Keratinocytes Melanocytes Merkel cells Langerhans cells
hope this helps.
Couples who both have normal colour vision and have a child with colour blindness. Explain how this may happen, and state that the sex of the colour blind child must be.
Answer:
because of the sex with the wrong way so the child is colour binld
HEP PLSSSSSSSSS ASAP
Answer:
a- brown eyes
b- blue eyes
c- brown hair
d- widows peak
e-short arms
f- can roll tongue, long arms
g- brown eyes, brown hair
h- widows peak, short arms
i- brown eyes, can roll tongue
j- brown eyes, brown hair, no widows peak, long arms, can't roll tongue
Explanation:
So the capital letter is the dominant trait, and the lowercase letter is recessive. The capital dominant trait will always overpower the lowercase recessive trait. So the only way the recessive trait can be seen is if there are two together. So... if R is white fur and r is brown fur...
RR would show the dominant trait of white fur
Rr would show the dominant trait of white fur
rr would show the recessive trait of brown fur
Hope this helps!! Please vote Brainliest!
PLEASE HELP
Many plants have the ability to respond to herbivores. Some plants produce substances
which are distasteful or toxic in response to an herbivore attack. Which of these is the LEAST correction description of the plant system interactions involved?
A. Carbon dioxide diffuses through stoma into leaf tissues, where it is fixed into organic compounds
which may serve as building blocks for chemical defenses.
B. Root systems obtain water and key minerals from the soil where they are transported to the affected site.
C. Shoot systems carry carbon dioxide, water and nutrients from leaves directly to the affected
plant part, where chemical defense molecules are produced.
D. Chemicals found in a herbivore's saliva trigger chemical messengers which trigger production of
defense molecules
Answer:
I'm pretty sure that the answer is d :)
Explanation:
<3
Answer:
yeah
Explanation:
Mechanical Defenses
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves). They discourage animals by causing physical damage or by inducing rashes and allergic reactions. Some Acacia tree species have developed mutualistic relationships with ant colonies: they offer the ants shelter in their hollow thorns in exchange for the ants’ defense of the tree’s leaves.
Explain how electric fields make pollination efficient in plants.
Answer:
Electric field around flowers may help bees find nutritious blooms. Scientists report that bees and flowers appear to have a charged communication. In addition to a flower's color and scent, its electric field may also bring in bees, a new study shows
Explanation:
hope it helps
Answer:
hope it helps you stay happy
Which is an example of a beneficial mutation?
Which would most likely be the resulting phenotype of the offspring?
Answer: Examples of beneficial mutations are HIV resistance, lactose tolerance, and trichromatic vision.
Answer: one that changes the color of a rabbit, allowing it to hide from predators.
Explanation:Need brainliest award
HELP I'LL GIVE BRAINLIEST
Which statement best describes a required component of cell differentiation?
A. The transcription of the myoD gene.
B. The selective loss of certain genes from the genome.
C. The production of tissue-specific proteins.
D. The movement of cells.
An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized and
transported throughout the cell, and a high carbohydrate content within the cytoplasm. The researcher performing the analysis
concludes that the compounds must serve different roles in the cell. However, a chemical analysis of these three compound types
is also performed. Which comparison BEST illustrates the similarity and difference in the elemental makeup of these molecules?
A)
B)
Carbohydrates and proteins both contain carbon, hydrogen, and oxygen
atoms, while the lipids contain sulfur in addition to those three elements.
Carbohydrates and lipids both contain carbon, hydrogen, and oxygen
atoms, while the proteins contain nitrogen in addition to those three
elements
Carbohydrates and proteins both contain carbon, hydrogen, and oxygen
atoms, while the lipids contain nitrogen in addition to those three
elements
Carbohydrates and lipids both contain carbon, hydrogen, and oxygen
atoms, while the proteins contain phosphorus in addition to those three
elements
D)
Answer: Carbohydrates and lipids both contain carbon, hydrogen, and oxygen
atoms, while the proteins contain nitrogen in addition to those three
elements
Explanation:
What makes dogs more intelligent than other closely related species
Answer:
dogs can be trained and remember their training for a long time
Explanation:
what are some non examples of negative feedback?
Answer: (EXAMPLES). Human body temperature - The hypothalamus of a human reacts to temperature fluctuations and responds accordingly. If the temperature drops, the body shivers to bring up the temperature and if it is too warm, the body will sweat to cool down due to evaporation.
Human blood pressure - When blood pressure increases, signals are sent to the brain from the blood vessels. Signals are sent to the heart from the brain, and heart rate slows down, thus helping blood pressure to return to normal.
Human metabolism - When a human is hungry, metabolism slows down to conserve energy and allows the human to continue living with less food.
Regulation of blood sugar in humans - When blood sugar rises, insulin sends a signal to the liver, muscles, and other cells to store the excess glucose. Some is stored as body fat, and other glucose is stored as glycogen in the liver and muscles.
Production of human red blood cells (erythropoiesis) - A decrease in oxygen is detected by the kidneys and they secrete erythropoietin. This hormone stimulates the production of red blood cells.
Explanation: Since we all know, A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
Describe at least 2 ways HeLa cells are going to be used in the future. Either a study
currently underway or in development.
Answer:The enduring use of HeLa cells in biomedical research is represented below through a timeline of events and scientific publications that describe research using HeLa cells.
Explanation:
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USING THE PICTURE, FILL IN THE BLANK WITH EACH LETTER.
___ 1. Snow Precipitation
___ 2. Rain Precipitation
___ 3. Evapotranspiration
___ 4. Stream Flow/ Surface Runoff
___ 5. Sublimation
___ 6. Infiltration
___ 7. Groundwater Flow
___ 8. Groundwater Storage
___ 9. Fresh Water Pond
___ 10. Ocean
___ 11. Evaporation
Answer:
This is in-order:
D
E
B
F
C
I
G
H
J
K
A
Someone help me define these pls