Answer:
B.
Explanation:
It is important to reduce the number of chromosomes in half when forming gametes for reproduction because offspring will have the correct number of chromosomes when sperm and egg are joined.
WHAT ARE GAMETES:Gametes are cells produced for the purpose of reproduction. Gametes are produced as a result of meiosis, which reduces the chromosome number by half. Gametes include sperm cells and egg cells, which fuse together to form zygote. The zygote develops into a new organism.Therefore, reduction is necessary in order to have the correct number of chromosomes when sperm and egg are joined.
Learn more about gametes at: https://brainly.com/question/15556909
You are solving a density problem, where density = mass/volume. Your volume of liquid is 2.1 milliliters. Your mass of the liquid is 2.811 grams. What is the density of the liquid using the correct number of sig figs?
Answer:
Density = 1.3386kg/m³
Explanation:
Given the following data;
Volume = 2.1 millimeters to meters = 2.1/1000 = 0.0021 meters
Mass = 2.811 grams to kilograms = 2.811/1000 = 0.002811 kilograms
To find the density;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
[tex]Density = \frac{mass}{volume}[/tex]
Substituting into the equation, we have;
[tex] Density = \frac {0.002811}{0.0021} [/tex]
Density = 1.3386kg/m³
The inflammatory response does not: Question 15 options: Replaces damaged tissue with healthy tissue Prevents the spread of disease to surrounding tissues Starts the repair process of the tissue Disposes of the cellular debris The inflammatory response does all of the above.
Answer:
The correct option is Replaces damaged tissue with healthy tissue
Explanation:
This is because inflammatory response refer to series of occurrences that happens when tge body tissues suffer injury from chemicals, toxins, heat,trauma or other things. Tge damaged cells releases chemicals like histamine and make the blood vessels to accumulate fluid and then swell. The chemicals then separate the foreign substances from the normal one. These chemicals attracts white blood cells called phagocytes which swallow up the dead damaged cells
Which scenario is an example of a scientific way of thinking?
A. A scientist writes a play that illustrates the challenges monarch
butterflies face on their long, yearly migration.
B. A scientist collects monarch butterfly specimens from each part
of their life cycle and creates a display.
C. A scientist observes the different parts of the life cycle of
monarch butterflies and collects detailed descriptions.
D. A scientist talks to various organizations about the importance of
preserving habitats vital to the survival of monarch butterflies.
Answer:
C To make observations
Explanation:
you need to form questions,making hypothesis and analysing the data
Answer:
C. A scientist observes the different parts of the life cycle of
monarch butterflies and collects detailed descriptions.
Explanation:
Apex
true or false
i will give brainliest
All you need is on the photo
Answer: B
Explanation:
When immigration into an area is higher than emigration out and with other factors kept constant, you will have a situation where population will increase.
This is the case in the point of the graph labelled B. We can see a rise in population so immigration must be more than emigration. In the other points, the population is reducing which means that more orca whales are leaving than coming in.
Climatology study cumulative weather data. They analyze the average_______and average _______. Temperature,precipitation. Snow,rain. Rain,sun
Answer: temperature, precipitation
Explanation: I just took the test and got it right
Assuming you started with a saturated hemoglobin molecule, how many molecules of oxygen would need to be released in order for the hemoglobin to be 75% saturated
Answer:
only one oxygen molecule
Explanation:
Hemoglobin (Hb) is an iron-containing oxygen-transport protein localized in vertebrate red blood cells (i.e., erythrocytes). Moreover, the heme group is a component of the Hb protein which is capable of binding or releasing molecular oxygen. Hb consists of four globular protein subunits, and each subunit contains a heme group. This group (heme) binds to an oxygen molecule in a manner that each Hb protein can bind to four oxygen molecules in order to transport them throughout the bloodstream.
Which type of joints allows movement
Answer:
The correct answer would be - synovial joints.
Explanation:
Synovial joints are the joints that allow bones to move as these joints are able to great movement freely of the three structural joints. These joints have synovial fluid which helps and enabling the structures of the joints to move smoothly against each other.
They also called diarthroses which means freely movable. Ball and socket joints is a type of synovial joint that allows movements in all direction with help of muscles attached to it. Hip joint and Shouder joint are examples of such joint.
Answer:
Synovial joints
Explanation:
Synovial joints achieve movement at the point of contact of the articulating bones.
Synovial joints allow bones to slide past each other or to rotate around each other. This produces movements called abduction (away), adduction (towards), extension (open), flexion (close), and rotation.
How many chromosomes are found in the common strawberry found in the grocery stores?
Answer:
In total, they have 56 chromosomes
Explanation:
Unlike Humans which has two copies of 23 chromosomes (in total 46) common strawberries have 8 copies of 7 chromosomes hence why they have a total of 56 chromosomes.
Hey yall you don't know me but can someone help ill do anything
Answer: I believe the answer is D because I know that you can't kill a eagle in the U.S. because it is a protected species.
The cells that form the lining stomach most likely form _________ since they produce secretions and protect the stomach.
1) Muscle tissue
2) Connective tissue
3) Epithelial tissue
4) Nervous tissue
Answer:
1) epithelial tissue
Explanation:
Partietal cells are in the stomach and they form epithelial tissue
The United States is the only nation that did not manage natural resources well during the industrial era.
True
False
Groups of animals based on covering
of animals
body covering like fur , feature and scale can help us to decide to which group an animal belong
Genes A and B are 10 map units apart and genes B and C are 20 map units apart, with gene B located between genes A and C. What would be the expected amount of double crossovers for a trihybrid test cross
Answer:
2% of the progeny will be double crossovers for the trihybrid test cross
Explanation:
By knowing the positions of genes, we can estimate the distances in MU between them per region.
Genes A and B are 10 map units apart (Region I)Genes B and C are 20 map units apart (Region II)Genes A and C are 30 map units apart----A-------10MU--------B-------------20MU-------------C---
Region I Region II
We can estimate the recombination frequencies by dividing each distance by 100.
• recombination frequency of A-B region = 10MU / 100 = 0.10
• recombination frequency of B-C region = 20MU / 100 = 0.20
Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:
EDRF = recombination frequency in region I x recombination frequency in region II.
EDRF = 0.10 x 0.20 = 0.02
2% of the progeny will be double crossovers for the trihybrid test cross
how does the offspring of two parents that reproduce sexually differ from the offspring of a parent who reproduces asexually
asexual is only one parent
Grade 4-5:
Describe the structures and functions of the brain including the
cerebellum, cerebral hemispheres and medulla oblongata
Answer:
Cerebral hemispheres: The cerebrum's outer layer, it is split into two hemispheres and is highly folded. These two hemispheres make up the cerebral cortex. This controls most of our senses, intelligence, personality, conscious thought and high-level functions, such as language and verbal memory.
Cerebellum: Controls balance, co-ordination of movement and muscular activity.
Medulla oblongata: Controls unconscious activities such as heart rate and breathing rate.
Hypothalamus: Regulates temperature and water balance within the body.
Explanation:
Can someone help me pls what does a plant cell and a animal cell have in common and have not in common pls helpppppp
Answer:
They both have a cell membrane, nucleus, Mitochondria,vacuole, cytoplasm but they have not in common; cell wall and chloroplast
Food production and food availability affect millions of people worldwide. What are supporting arguments that it is not to the advantage of any group to provide food to others?
Answer:If increases in supply do not keep pace with growth in demand, food prices rise, attracting resources into food production. If supply grows faster, food prices and farm incomes fall, driving resources out of agriculture. Resources may not move fast enough to correct imbalances.
Explanation:
Answer:
Food production and availability is a problem for many people throughout the world. Many people try to help this problem by trying to provide food for those in need, but this isn't a real advantage to anyone. When people buy more of one a product to donate, it causes an increase in demand that the supply may not be keep up with causing the prices to increase, making it harder for everyone to afford it Even if the supply increases but then produces more than demanded the prices for the particular product will drop, resulting in the farmers not being paid enough, or growing more could lead to the land losing resources faster than normally.
Explanation:
Why is meiosis important for organisms?
It creates gametes and allows for genetic variation among organisms.
It produces genetically identical cells.
0 It provides a means of asexual reproduction.
O It allows for cell and tissue repair
Which human activity would help reduce the amount of carbon dioxide in the atmosphere
Answer:
Burning coal
Explanation:
The emissions of carbon dioxide would reduce because then they will consume less gasoline. Instead of coal burning, this would reduce the overall concentrations of greenhouse gas emissions and generate energy from wind.
someone help me giving brainless please hurry
Answer:
B or D i think B
Explanation:
Which phylogenetic tree shows that lactation--the production of milk to feed young--is a homologous trait in humans, dogs, and bats (but not in birds and lizards)
Answer:
The correct answer is - choice 1 in the image.
Explanation:
In this given question there are four phylogenetic trees are given among these four trees one tree shows the milk production to feed young ones which is mologous case in humans, bats, and dogs as they show lactation whereas lizards and birds do not show lactation.
In these four the first option shows the homologous condition at the second branch where milk production is divided from lizard and birds.
identify the main characteristerics of cells
Answer:
mitochondria, ribosomes, nuclei, golgi bodies, cell walls, cytoplasm...
Explanation:
1. Which of these best identifies biotic factors in a forest environment?
plants, animals, and their surroundings; including wildflowers, burds, rocks, and water
Answer:
beesechurger
Explanation:
It is estimated that 1,000 to 10,000 species go extinct each year. Assume an extinction rate of 5,000 species/ year. How many species have gone extinct while sitting in a 45 minute class?
Explanation:
there are 525600 minutes in a year. when you divide that by 11,680 you get 45 minutes. I could be wrong, but I believe the answer is 0.4280821
why does the addition of phosphate compounds to aquatic areas have a dramatic effect on biological productivity
Answer:
Explanation:
The presence of the phosphates compound here act as limiting factors for plant growth in aquatic ecosystems, because they do not dissolve easily in water . Then eutrophication( this is the gradual rise in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem.) starts acting wherever there is too much phosphate, it promotes excessive amount of algae and it will exhaust the oxygen.
describe what homogyous
Answer:
allele - different forms or versions of genes
chromosomes - structures that carry genetic information (passed from biological parents to offspring)
homologous - similar in structure
locus - a particular site or location
Explanation:
All you need is on the photo
Answer:
B
Explanation:
photosynthesis takes in CO2 and gives O2, so if it were photosynthesis the lines would be swapped. cellular respiration takes in O2 and expels CO2.
Answer:
B Cellular Respiration
Explanation:
In Cellular Respiration organisms use Oxygen and give out Carbon dioxide.
In Photosynthesis plants use Carbon dioxide and give out Oxygen.
HELPPP!!!!! this is for biology and its the stages of cell reporduction
If a paramecium swims from a hypotonic to an isotonic environment, will its contractilevacuole become more active or less?
Answer:
Less.
Explanation:
Its contractile vacuole become less active because of the same concentration of water in both the body and outside environment. Contractile vacuole is responsible for the removal of excess liquid with the help of contraction. In isotonic environment, there is no flow water occur inside or outside of the cell due to the presence of equal amount water in both the environment i. e. cell and outside environment so due to equal amount of water, contractile vacuole become less active.