Answer:
A. Half the number of chromosomes found in the body body cells
Explanation:
Somatic (body cells) have 2 sets of chromosomes, while gametes have 1 set of chromosomes. Sperm has one set, and an egg has one set allowing both to fuse to create a new organism.
Answer:
[tex]\boxed {\boxed {\sf A. \ Half \ the \ number \ of \ chromosomes \ found \ in \ the \ body \ cells}}[/tex]
Explanation:
Gametes are sex cells, such as the egg and sperm. They are used in sexual reproduction to produce offspring.
The sex cells are produced during meiosis. The DNA or genetic material is replicated, then the cells divide twice. After this, four haploid cells are produced with half of the genetic material. For example, human body cells have 46 chromosomes but sex cells have 23 chromosomes.
They contain half the genetic material for an important reason. During fertilization, an egg and a sperm fuse. Each one contributes half of the genetic material from the mother or father to create one complete set for the offspring.
Gametes have half the number of chromosomes in body cells and choice A is correct.
Read the following passage from the Biology Department at University of California, Berkeley.
Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
Which of the following best describes how the population has evolved?
The population has not evolved because there was no change in allele frequencies.
The population has not evolved because it has grown.
The population has evolved because it has grown.
The population has evolved because there was a change in allele frequencies.
Answer:
the last one sorry if i'm wrong
Explanation:
According to the passage from the Biology Department at University of California, Berkeley.Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
What is population?The term population reffered to the total number of people living in a particular given area.The population of an organism can't survive if it exceeds it's carrying capacity.
The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase.
If animal population increases the population that eat that animal might also increase.
The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease.
When predictors became scarce due to over population, the weekar species of animal start or die in other ways .
The accurate description of the growth of a natural animal population is limited by environmental factors.
Therefore,The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
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What is the difference between asexual and sexual with plants??
I WILL GIVE BRAINIEST IF CORRECT.
Answer:
see below hope this helps !
Explanation:
Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent.
Sexual reproduction involves two parents and produces offspring that are genetically unique.
Answer:
asexual plants are plants that can reproduce without another specimen and have hosts that carry pollen or whatever needed to reproduce and sexual plants need another plant to reproduce
Explanation:
:) hope this helps <3
Differentiate between:
Species diversity and ecosystem diversity
Answer:
Eplanation :spices 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.
Answer:
Species diversity refers to the number of different species that are represented in a given community while ecosystem diversity refers to the variety of different ecosystems within an area.
lodine-131 is radioactive. If after 160 days only 1/8 of the sample remains, how long is
its half-life?
A. 92.2 days
B. 20 days
C. 53.3 days
D. 16 days
Scientists have observed that the planets closest to the Sun orbit faster than the planets farther away from the Sun. What is responsible for this observation? (help fast)
A
the nuclear energy of the Sun
B
the magnetic field of the planets
C
the gravitational force of the Sun
D
the electrostatic force of the planets
Answer:C
Explanation:Its gravitational force of the sun
I will give brain to the correct answer!
Which statement best explains how sewage systems help fight the spread of disease?
A. They carry antibiotics that kill pathogens
B. They carry human waste to treatment facilities away from cities
C. They kill animals that spread pathogenic bacteria
D. They add chlorine to drinking water before it is transported to homes.
B. They carry human waste to treatment facilities away from cities
The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950.
Answer: Some of the previously warm regions became colder from 1650 to 1700
Explanation: I got it right on the test
According to the graph, the number of sunspots decreased from 1650 to 1700. That means the correct option is A.
What is a sunspot?The areas of the sun where the magnetic field of the sun is 2500 times more than the Earth. In these areas, the magnetic field is more than anywhere else on the surface of the sun.
Near the area of a sunspot, there is a small amount of energy output from the sun. UV rays from the sun also increase at a high sunspot activity. This increase in UV radiation causes dramatic effects on the atmosphere of the Earth.
The more number sunspots are observed, the more energy will be delivered to the earth. This increase in the energy delivered to the earth would result in an increase in the overall global temperature.
According to the graph, the number of sunspots observed decreased from 40 to 5 and increased slightly from 5 to 10 from 1610 to 1700. So, the statement says that some of the warm regions would become colder from 1650 to 1700.
Therefore, the correct option is A.
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HELLPPPP ITS THE HIGHLIGHTED ONE
I think it would be the first ones with lower o2 because fish dont breathe oxygene
Answer:
it would be the one with more oxygen because they would thrive more
Explanation:
Hello! I need help ASAP and no links
Answer:
A
Explanation:
What is needed for work to be done?
Answer:
In order for work to be done on an object, what must happen to the object? A force must be applied to the object and the object must move at least partly in the direction in which the force is applied.
Explanation:
If a red cow (hom0zygous dominant) is crossed with a white cow (hom0zygous dominant), what alleles will the offspring have?
Rw
RW
rW
rw
Answer:
RW
Explanation:
Captial letters are dominant and because both cows are hom0zygous dominant, the offspring will inherit one white dominant allele and one dominant red allele.
Answer: The answer is B: RW
Explanation: Edge 2021
Very easy answer, I will give Brainliest! What is the name of this process? Click the picture above to view.
Answer: Not exactly sure of the specific name of the process, but the picture shows how the sun provides healthy sunlight with the ozone absorbing some of the radiation
Explanation:
While all zebras have stripes, no two zebras share the same stripe pattern. adap
you have to addd more
Explanation:
you have to add more to your question, its is hard to answer
Fill in the gap to complete the sentence below. A mineral is an essential nutrient that is needed in ____ amounts.
Answer:
Considerate???
Explanation:
You cant have to many minerals and you cant have to little
In the statement, "A mineral is an essential nutrient that is needed in." the given blank can be filled with "small amount."
A mineral is an inorganic solid that forms in nature and has a distinct chemical makeup and crystalline structure.
The body requires trace amounts of minerals in order to function effectively. They play a role in several body processes, such as blood clotting, nerve health, and bone health.
Calcium, iron, magnesium, potassium, and zinc are a few of the essential minerals for human health. Fruits, vegetables, whole grains, dairy products, and other foods that contain these minerals.
Therefore, "Small amount" can be entered in the given blank.
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Use the table to write the phenotypes that would be visible given the different genotypes.
I will mark Brainlist.
Answer:
EE. Large Eyes
oo. Round face shape
Ss. straight hair
CC.normal chin
Cc. normal chin shape
ee. Small eyes
ss. Curly hair
Oo. Oval face shape.
(PLEASE HELP!! AND NO LINKS OR I’LL REPORT YOU!) True/False: Organisms can adapt to unfavorable environmental conditions in their lifetime.
A group of scientists studied the effects of exercise on insulin sensitivity in elderly women. The scientists measured the amount of insulin secreted in the saliva when given glucose. Measurements were taken at 0, 20, 40, and 70 minutes after the glucose was administered. The graph shows the data collected before and after a four-month exercise program was put into place
Which statement BEST analyzes the data shown in the graph?
A. Elderly women secrete more insulin the more they exercise.
B. Exercise decreases insulin sensitivity in elderly women.
C. Insulin sensitivity is at its highest after 50 minutes.
D. Insulin sensitivity increases as exercise decreases.
Answer:
B. Exercise decreases insulin sensitivity in elderly women.
Explanation:
I got the answer correct in a test.
Exercise decreases insulin sensitivity in elderly women.
What is Insulin?
Your muscle cells are better equipped to use any insulin that is present to take up glucose during and after exercise because their insulin sensitivity has risen.
Whether or not insulin is present, when your muscles contract during activity, your cells can absorb glucose and utilise it as fuel.
Depending on how long you exercise for, among other things, will determine how your physical activity affects your blood sugar levels.
Learn how your blood sugar changes as a result of activity. You can better understand the advantages of exercise by monitoring your blood sugar levels more frequently before and after exercise.
Therefore, Exercise decreases insulin sensitivity in elderly women.
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Explain how carbon cycles through the ecosystem in which you live.
PLEAASE HELP :((
Answer:Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Explanation:
Many snakes and lizards live in the desert, where temperatures are high during the day and cold at night. How does the temperature range affect the size of the snakes and lizards?
A. High daytime temperatures allow them to grow as large as the food supply will allow.
B. Cold nighttime temperatures limit their size, because large ectotherms need a long time to warm up in the sun.
C. High daytime temperatures limit their size, because large endotherms would overheat on very hot days.
D. Cold nighttime temperatures limit their size, because large endotherms would lose too much of their body heat.
Answer:
A. High daytime temperatures allow them to grow as large as the food supply will allow.
Explanation:
Snakes and lizards are cold-blooded animals. This type of animal cannot maintain a constant body temperature and depends on the temperature of the environment to keep warm and keep its organs and metabolism working.
Room temperature is so important to these animals that they even determine the size of their bodies. For these animals, high temperatures allow them to have their metabolism accelerated, so they can grow as much as the availability of food allows. On the other hand, if there is not enough food, or very cold temperatures, they will need to be smaller in size, as the metabolism will be slow.
Select all that apply: Meiosis increases diversity in a populations by way of *
Mutation
Independent Assortment
Crossing Over
Random Fertilization
The National Wildlife Refuge supports _______ wildlife refuges.
a.
150
b.
37
c.
550
d.
227
Please select the best answer from the choices provided
A
B
C
D
Answer:
answer b is the correct of this question
question 2
Two abiotic resources that affect an ecosystem are:
A. temperature and animals
B. plants and animals
C. water and bacteria
D. soil and water
1. John and Aubrey are trying to decide where to go for dinner. John says he wants Chinese. He
knows Aubrey doesn't really like Chinese but he is in the mood for it. Aubrey tells him she'd
rather have something else. John gets agitated and starts telling her she is just being selfish.
Aubrey backs down and agrees to eat Chinese just so he will stop yelling at her. John then kisses
her, smiles, and says, “I knew you loved me". This is an example of an abusive relationship.
O true
false
Answer:
true
Explanation:
Just because he told she's being selfish ext.. lol it's not normal
Justify the claim by describing an example of a behavioral event in ANIMALS that occurs in response to a 24-hour light/dark cycle.
What is a reason for peer reriew?
A: to maintain scientific standards
B:to allow anyone to submit research
C:to ensure that science remains elitist
How many dogs are in the world
Answer:
900 million around the globe.
Explanation:
Mark brainiest pls
Green anoles were forced out of their established habitat of trees, plants, walls and fences by invasive brown anoles. The green anoles then had to find new habitats in wetlands and tree crowns. This example illustrates the concepts of:
Answer:
both competition and realized niche
Explanation:
In horses, black coloring (B) is dominant, and chestnut coloring (b) is recessive. What percentage of offspring are expected to be chestnut?
Answer:
This question is incomplete, the complete question is as follows:
- In horses, black coloring (B) is dominant, and chestnut coloring (b) is recessive. A homzygous black horse crosses with a chestnut horse.
What percentage of offspring are expected to be chestnut?
The answer is 0%
Explanation:
This question involves a gene coding for color in horses. The allele for black coloring (B) is dominant over the allele for chestnut coloring (b) is recessive.
According to this question, if a homzygous black horse (BB) crosses with a chestnut horse (bb), the following gamete will be produced by each parent;
BB - B only
bb - b only
Using these gametes in a punnet square, the following proportion of offsprings will be produced:
Bb, Bb, Bb, Bb
All of these offsprings are phenotypically black colored although heterozygous in genotype. Hence, 0% of offspring are expected to be chestnut.
Answer:
its 0% love
Explanation:
Describe the lysogenic cycle. Write a paragraph. Please don't copy and paste answers. Thank you.
Answer:
The viral DNA is inserted into the DNA of the host during the lysogenic cycle; however, viral genes are not expressed. During each cell division, the prophet is transmitted to daughter cells. The prophet leaves bacterial DNA after some time and passes through the lytic cycle to create more viruses. hope this helps Explanation:
Answer:
I have absolutely no clue
Explanation:
Because i'm a friend and you'll love me anyways Unu
 please answer quick and correctly
The rest of teh choices for number 3 is blood and carbon dioxide and for 6 the choices are to transport gases to protect internal organs to control movement or to transport fats
Answer:
Yes, you are right for both.