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Why is mutation needed for evolution to occur, even though it usually has little effect on allele frequencies?
Which of the following statement is NOT true about Eukaryotic
cells?
o They are bigger and more complex than prokaryotes.
o They have membrane bound Organelles
o They do not have a nucleus
o Their DNA forms chromosomes
Answer:
they do not have nucleus
Answer:
they do not have a nucleus
The term endosymbiosis can be broken down into parts. Endo- means “within.” What is another term you have heard that starts with endo-?
Here's one but there are many more out there
endoplasmic reticulum
When you see a movie and remember the story because it had meaning to
you, you are using _____ memory
A. episodic
B. flashbulb
C. semantic
D. didactic
Answer: A. Episodic
Explanation:
When you see a movie and remember the story because it had meaning to you, you are using Episodic memory.
What is Episodic?The majority of the time, when someone mentions memory, they are referring to episodic memories, which include details of recent or previous experiences and events, such as where you parked your car this morning or the dinner you had with a friend last month.
Three stages of memory processing—encoding, consolidation/storage, and retrieval—are necessary for the memory to be able to recall past events.
The default mode network, which encompasses numerous brain areas including frontal and parietal regions and has been implicated in episodic memory functioning, contains the hippocampus and nearby structures in the temporal lobe, which are significant for episodic memory.
Therefore, When you see a movie and remember the story because it had meaning to you, you are using Episodic memory.
To learn more about Episodic memory, refer to the link:
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What is the purpose of the lab?
How do the nonvascular plants reproduce?
Answer:
Most nonvascular plants reproduce sexually by creating single-celled spores or asexually by vegetative propagation.
Answer:
Most nonvascular plants reproduce sexually by creating single-celled spores or asexually by vegetative propagation.
Explanation:
Nonvascular plants are commonly found in moist environments so that they are always close to a water source and can absorb the water right into the main part of the plant without relying on roots. ...
6. Everyone in Squidward's family has light blue skin, which is the dominant trait for body color in his
hometown of Squid Valley. His family brags that they are a "purebred" line. He recently married a nice girl
who has light green skin, which is a recessive trait. Create a Punnett square to show the possibilities that would
result if Squidward and his new bride had children. Use B to represent the dominant gene and b to represent
the recessive gene.
A. List the possible genotypes and phenotypes for their children.
Bb - light blue skin
ВІ Вь
Bb
B В
Bb
Bb
B. What are the chances of a child with light blue skin? 100%
C. What are the chances of a child with light green skin?_0_%
D. Would Squidward's children still be considered purebreds? Explain!
They wouldn't be considerd pure bred. Each has a gene
made of a dominant and ressive gene.
7. Assume that one of Squidward's sons, who is heterozygous for the light blue body color, married a girl that
was also heterozygous. Create a Punnett square to show the possibilities that would result if they had children.
A. List the possible genotypes and phenotypes for their children.
B. What are the chances of a child with light blue skin?
%
C. What are the chances of a child with light green skin?
%
Answer:
The chances of a child with light blue skin is 100% and the chances of a child are 50%
Explanation:
What sequence of bases on RNA would match, or pair with, the following DNA sequence
A. ATC
B. GUA
C. UAG
In the diagram below you can see structures that work together to allow flowering plants to reproduce.
Which answer choice correctly identifies the role of each structure or group of structures?
Complete question:
Several structures work together to allow flowering plants to reproduce. The diagram shows a typical flower.
Which answer correctly identifies the function of each structure or group of structures in the reproduction of the plant?
X- pollen production
Y- pollen transfer
Z- production of eggs
X- attraction of pollinators
Y- production of male sex cells
Z- egg production
X- production of eggs
Y- pollen transfer
Z- pollen production
X- production of eggs
Y- pollen production
Z- pollen transfer
Answer:
X- attraction of pollinators
Y- production of male sex cells
Z- egg production
Explanation:
Flowers are reproductive structures in charge of sexual reproduction through the production of seeds.
Z, Feminine reproductive structures:
The central structure is known as a carpel, also recognized as the pistil. The base of the carpel forms the ovary, in which the eggs are produced and where the zygote develops. The opposite extreme of the carpel is the stigma, in the superior part. The stigma is a sticky surface where the pollen grains get attached. The ovary and the stigma are connected by a filament named style.Y, Masculine reproductive structures:
The pollen grains, or male sex cells, are produced in the stamens. The stamen has an anther where the pollen is produced, and a filament that provides support.When mature, pollen grains are driven to the stigma of the same flower or other flowers of the species, where they stick. Once in the stigma, the pollen grains move to the ovary, where they meet the egg and fertilize. The zygote develops in the ovary.
X, External non-reproductive structures:
Flowers also have external structures known as petals and sepals. These structures are modified leaves whose principal function is to protect the flower´s fertile parts and attract pollinators. Petals characterize as having many different colors that make the flower more attractive to insects and some animals. When they visit a flower searching for their recompense, the flower´s pollen grains transfer to the insect´s body. The insect transports the pollen to the next visited flower, leaving it in the stigma of the second flower.
When a cell undergoes mitosis, what is the result?
A.
two cells, each containing half of the parent cells' genetic information
B.
two genetically identical cells
C.
four genetically different cells
D.
four cells created from the combination of two parent cells
Answer:
i think Its b or a
Explanation:
What is the proper way to introduce a motion using correct parliamentary procedure ?
It stimulates the production of sperm cells in seminiferous tubules in males, and stimulates The egg maturation in the female ovaries.
Answer: Testosterone, follicle stimulating hormone
Explanation:
Testosterone is a sex hormone produce by the male sex organs or testes typically in the seminiferous tubules. It incudes male sexual characteristics that is the production and development of sperms in males. The follicle stimulating hormone is involved in causing the maturation of the eggs or female gametes in the female sex organs or ovaries. It also induces the mensuration cycle in females. FSH also have a role in stimulating the spermatogenesis in males as it acts on the Sertoli cells of the testes and stimulates the sperm production.
9. The Sun provides Earth with both light and thermal energy. Which of
the following is an example of the Sun's thermal energy at work in the
water cycle?
a. Accumulation
b. Precipitation
C. Condensation
8
d. Evaporation
Answer: The answer is d!
Explanation:
what's antibiotic resistance and three cause of antibiotic resistance?
Answer:
antimicrobial resistance
Explanation:
when we use antibiotics some bacteria die but resistant bacteria can survive and even multiply. The overuse of antibiotics make resistant bacteria become more common. The more we use antibiotics the more chances resistant bacteria have to become resistant to them
1. All of the following are a result of alcoholic fermentation, EXCEPT:
Sore muscles during vigorous exercise
Bread rising
Producing beer and wine
Producing bubbles in root beer
PLSS HELP IMMEDIATELY!!!! ILL MARK U BRAINIEST IF U DONT LEAVE A LINK OR GUESS!!!!
Answer: C
Explanation: Hope this help :D
Answer:c
Explanation:c
Rock pocket mice are rodents found in the desert Southwest. They are typically light/tan, but a mutation in the population codes for a
darker fur color. The two fur colors are shown in the images here. The area where these mice live typically have a sand with a tan
background. However, there are areas of cooled lava from a volcanic eruption 10,000 years ago that deposited black rock. The mice
are found on the sand and on the rocks.
Researchers set traps to collect samples of mice from the rocks and the sand areas. An analysis of the data for the mice caught in
each of the areas would show which trend if natural selection were acting on the different phenotypes?
Answer:
B) Visual predators favored the tan mice on the dark rock and black mice on the light rock.
C) The black mice on the black rock camouflage better, allowing them to survive and reproduce.
E) There are more black mice in the dark environment and more tan mice in the light environment.
Explanation:
I just did it on USATestPrep
The correct option are :
The visual predator favored the tan mice on the dark rock. The black mice on the black rock can camouflage better. The more black mice under dark environments and more tan mice under light environments.What are rock pocket mice?The rock pocket mice are 19 specie of the pocket mice and they are found mainly in the rock out crops of the desert of the southwestern US and Mexico and medium-sized mice of 18 cms.
They have a breeding season that starts in fed to march. They are dark in color and can easily camouflage with the surroundings and this gives them an advantage over the light white mice.
Find more information about the rock pocket mice.
brainly.com/question/14960018
In summary, macromolecules are _____ molecules and there are ____ types of them.
A. small - five
B. large - five
C. small - four
D. large - four
Answer:
B
Explanation:
In summary,macromolecules are large molecules and there are five types of them.
help please it’s due today
Answer:
Option B - Nucleic acid.
which is a secondry disturbance
Most reptiles , including lizards and snakes reproduce sexually . Despite this parthenogenesis has been observed to occur naturally in certain species of lizards and snakes . Parthenogenesis is a reproductive process by which some females are able to grow and develop embryos without ever having their eggs fertilized by a male .
What would happen to a population if all females reproduce through parthenogenesis alone ?
A)The population would have less genetic diversity over time due to the females reproducing asexually instead of sexually .
B)The population would have less genetic diversity over time due to the females reproducing sexually instead of asexually .
C)The population would have more genetic diversity over time due to the females reproducing asexually instead of sexually .
D)The population would have more genetic diversity over time due to the females reproducing sexually instead of asexually .
According to the situation, option "A" is correct.
What is Parthenogenesis?Parthenogenesis is a method in which a new individual developed without fertilization. Males do not have any role to play and only female gametes develop into new offspring.
Examples of plants showing parthenogenesis include honey bees, ants, and birds.
Thus, option "A" is correct.
To learn more about Parthenogenesis click here:
https://brainly.com/question/9983077
Which has higher air pressure-warm air or cold alr? How do you know?
Answer:
Air lower in the atmosphere is more dense than air above, so air pressure down low is greater than air pressure higher up. ... Since warm air is less dense and creates less air pressure, it will rise; cold air is denser and creates greater air pressure, and so it will sink.
Explanation:
NO LINKS The arctic is an environment in which the temperature is often below freezing. The polar bear and the walrus are both animals which are native to the arctic region. What structures do both of these animals share that allow it to survive in this environment? Explain your thinking.
Answer:
Polar bears are found in very cold parts of the world where temperatures can drop as low as -20° Fahrenheit (-29° Celsius). Without proper protection, this weather can be deadly, so polar bears stay warm by utilizing their thick fur and fat, or blubber. Polar bears have evolved along with other Arctic animals to take advantage of minimal warmth, and can sometimes actually become too warm because their bodies are so efficient at trapping heat.
As for walrus', they cannot put on a coat to stay warm, but they can use layers -- layers of blubber! A walrus's hide is about one inch thick. Tucked underneath this tough skin is a layer of blubber. This layer of fat is from three to six inches thick. Just like our layers of clothes, a walrus's layer of blubber helps it stay warm.
Explanation:
Hope this helps! :)
Answer:
they are mammals
Explanation:
they are able to survive in cold temperatures
amino acids are hooked together at the what to make proteins?
1.) What is the difference between a blastocyst and an embryo?
I need simple answers please help
Answer:
A blastocyst is made up of an inner group of cells with an outer shell. The inner group of cells will become the embryo. The embryo is what will develop into your baby. The outer group of cells will become structures, called membranes, which nourish and protect the embryo
What are the answers to 10 and 11?
Answer:
The correct answer is -
10. 20 J
11. 29.31 %
Explanation:
According to the law of 10% energy transfer, the energy only transfers 10% energy from one tropic level to another and the rest 90% lost in the form of heat during the metabolic and excretion process.
So, 2000 J transfers only ten percent to the primary consumer that is 200 J and then ten percent of that transfers to long-tailed weasels that are 20 J.
11. The percentage efficiency -= energy after transfer*100/transfer before the transfer
= 350*100/1170 = 29.31%
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Waht is Environment Secretary?
Thiru Sandeep Saxena, IAS, Additional Chief Secretary to Government, Environment and Forests Department, Government of Tamil Nadu.
Thiru Sandeep Saxena, IAS, Additional Chief Secretary to Government, Environment and Forests Department, Government of Tamil Nadu
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HISTORICAL DATA QUIZ IN SCIENCE PLZZ HELPP ME BEEN HAVING A ROUGH DAY IF YOU COULD HELP I WOULD REALLY APPRECIATE ITT ASAPPP
Answer:
c. Montana
Explanation:
Although many states have dinosaur sites, so far the states that seem to be the most prolific producers of fossils are Colorado, Utah, Wyoming, and Montana.
Q) What is a primary function of the skull?
1. to protect the vital organs of the chest cavity
2. to protect the brain from damage and impact
3. to control conscious thoughts
4. to control the function of breathing
Which of these major bio element is present in the lowest amount in the body mass of living organism? *
A. oxygen
B. Phosphorus
C. Calcium
D. Nitrogen
plz answer this question as soon