Answer:
meiosis provides for variation in egg in sperm cell produced by an organism
Explanation:
meiosis is like mitosis for sex cells and it makes 4 individual cells at the end
Is there a way to investigate whether our predictions about genotypes are accurate?
Answer:
Test Crosses. A test cross is utilized to decide the genotype of a person with a attribute.
Explanation:
Brainliest?
what is the correct answer?
Answer:
Purple. Phenotype=visual characteristics
please help!!!!
Project: Global Temperature Change
Answer:
whats the project is it an essay
Explanation:
What is the casparian strip located?
Answer:
on the front of the caprisun duh
Explanation:
Geranium leaves grow in positions that permit the optimum use of light as a result of
Answer:
do you work stop cheat broo this evan btw
Explanation:
Geranium leaves are typically arranged in a way that allows for optimal use of light through a process called "heliotropism" or "solar tracking."
What is heliotropism?Heliotropism is the ability of plants to orient themselves towards the direction of the sun to optimize their exposure to light.
Geranium leaves are arranged in a rosette pattern, with each leaf emerging from the base of the stem and spreading outwards. The leaves are arranged in a way that maximizes their surface area while minimizing shading of other leaves. This arrangement allows the leaves to capture the maximum amount of sunlight possible.
Additionally, geranium leaves have a waxy cuticle that helps to prevent excessive water loss and damage from UV radiation. The leaves also have chloroplasts, which contain chlorophyll and are responsible for photosynthesis, the process by which plants use sunlight to produce energy.
Learn more about heliotropism, here:
https://brainly.com/question/1305135
#SPJ6
The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that
A. Reduces the rate at which oxygen is carried to the muscle cells
B. Increases the rate at which carbon dioxide is carried to the muscle cells
C. Results in the production of more ATP in muscle cells
D. Slows the destruction of enzymes involved in respiration of muscle cells
Answer:
C. Results in the production of more ATP in muscle cells
Explanation:
Please mark me as brainliest.
Which of the following steps stops the feedback
mechanism that begins when a person's body
temperature falls below 37.C?
O A. The blood vessels slow blood flow to the
skin.
B. The brain senses that the body temperature
has reached 37°C.
C. The muscles begin to contract rapidly.
O D. The person begins to sweat.
Answer:
dont know sry
Explanation:
??????????????
Answer: B
Explanation: The brain senses that the body temperature has reached 37°C
Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?
Answer:
I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.
Explanation:
The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.
Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.
which product of aerobic cellular respiration could not form in an anaerobic environment
A.) ATP
B.) Acetyl CoA
C.) Carbon Dioxide
D.) Water
Is DNA replication always a foolproof process? Explain your answer.
Answer: No. Although many proteins check the DNA for damage or errors, damaged regions can still be replicated. This may result in gene alterations and serious complications for the organism.
Explanation:
No, replication is not always a foolproof process although many proteins look for DNA damage or mistakes, damaged areas can still replicate. This can lead to gene rearrangements and serious problems in the body.
Some mutations are caused by mistakes in DNA replication. DNA replication isn’t always 100% complete. Sometimes, an incorrect base is inserted into the new DNA strand. This incorrect base can become permanent.
Breaks in DNA are caused by DNA replication errors, particularly those in regions that are difficult to replicate, known as fragile sites.
Breaks in DNA can cause cancer, mainly because they increase the risk of chromosome fragments rearranging themselves and activating genes that cause uncontrolled cell division.
To learn more about the replication, refer to the link:
https://brainly.com/question/31456037
#SPJ6
Select the statements below that accurately describe the functions of the skeletal system. Check all that apply.
1) The skeletal system provides jobs for doctors who are experts on human bones.
2) The skeletal system creates blood cells.
3) The skeletal system stores nutrients such as calcium and potassium for later use in the body.
4) The skeletal system helps humans know what nutrients to eat.
5)The skeletal system provides structure and support to tissues and organs of the body.
Answer:
5)The skeletal system provides structure and support to tissues and organs of the body.3) The skeletal system stores nutrients such as calcium and potassium for later use in the body.
Explanation:
Answer:
The skeletal system creates blood cells.
The skeletal system stores nutrients such as calcium and potassium for later use in the body.
The skeletal system provides structure and support to tissues and organs of the body.
Explanation: ed2020 :)
Identify 3 biotic factors that affect the weather. Identify 3 abiotic factors that affect the weather. Explain how for each.
Answer:
volcanoes, hurricanes, and earthquakes
Explanation:
Fruit-bearing trees such as apple trees have seeds that are found within the fruit. How is this considered an adaptation? *
the fruit is appealing to animals who will eat fruit and then disperse the seeds
the fruit protects the seeds from cold weather
the fruit protects the seed from an over-exposure to water
the fruit makes the seeds less appealing
Answer:
DRJYNTRHJ7LY
Explanation:
can someone please help me
How are different dog breeds created?
A.) natural selection
B.) new dog breeds were created randomly by mutations
C.) Humans select dogs with favorable traits to breed
D.) New dog breeds are created by genetic engineering
plz help soon i'll give brainliest
Answer: D
Explanation: Because new dog breeds are made when people mix two different breeds together to make another breed
Organs whose activity is simulated by FSH are indicated by
Answer:
Gonads, thyroid gland, adrenal gland
what 2 factors will the selectively permeable cell membrane use to select what can enter or leave the cell? I wrote size but what else?
why is correct measurement important
Explanation:
help in giving accurate information
is the cell membrane organelle, cell tissue, organ, organ system organismis
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Explanation:
s achieved when there is an equal concentration of water and electrolytes inside and outside the body's cells. 2. Charged ions such as sodium, potassium, and chloride are called . 3. The feeling of dry mouth experienced during dehydration is part of the body's . 4. The process by which water moves in and out of cells from an area of lower concentration of solutes to an area of higher concentration of solutes is called . 5. If you are not consuming enough water, or if you are excreting too much water from your body, can occur. 6. are substances that cause the body to lose water via urine. 7. The liquid that is between cells is called . 8. occurs when the extracellular concentration of sodium is too low.
Answer:
1. Fluid or water balance
2. Electrolytes
3. Thirst mechanism.
4. Osmosis
5. Dehydration
6. Diuretics
7. Interstitial fluid
8. Hyponatremia
Explanation:
1. Fluid or water balance is achieved when there is an equal concentration of water and electrolytes inside and outside the body's cells. The thirst mechanism of the body serves to maintain fluid balance of the body state by ensuring that enough fluid is consumed to allow for an equal concentration of electrolytes between the intracellular and extracellular fluid compartments.
2. Charged ions such as sodium, potassium, and chloride are called electrolytes. They are the molecules which help the body to maintain fluid balance when they are pumped in or out of the cell.
3. The feeling of dry mouth experienced during dehydration is part of the body's thirst mechanism.
4. The process by which water moves in and out of cells from an area of lower concentration of solutes to an area of higher concentration of solutes is called osmosis.
5. If you are not consuming enough water, or if you are excreting too much water from your body, dehydration can occur.
6. Diuretics are substances that cause the body to lose water via urine.
7. The liquid that is between cells is called interstitial fluid.
8. Hyponatremia (low sodium concentration) occurs when the extracellular concentration of sodium is too low. It can occur when too much water is consumed over a short period of time, or it can occur due to sodium loss from the body due to kidney diseases.
Light traveling through the air moves in a straight line. An object viewed through water looks different because light rays that travel through water are . . .
A.bent
B.reflected
C.bounced
B.absorbed
How many electrons fill each of the orbital levels in the diagram below?
(10 points)
The diagrams below show some changes in an
environment over time.
(A)
(B)
(C)
Which phrase best describes this sequence of
diagrams?
(1) the path of energy through a food web in a
natural community
(2) the altering of an ecosystem by a natural
disaster
(3) natural communities replacing each other in
an orderly sequence
(4) similarities between an aquatic ecosystem
and a terrestrial ecosystem
(D)
r
Answer:
The correct answer is - (3) natural communities replacing each other in an orderly sequence
Explanation:
In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.
In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.
Which of the following human impacts on natural habitats are TRUE? Check all that apply.
Innate immunity and acquired immunity are both _____. See Concept 43.1 (Page 953) View Available Hint(s) Innate immunity and acquired immunity are both _____. See Concept 43.1 (Page 953) dependent on surface secretions from sebaceous and sweat glands, which give the skin an acidic pH that is unfavorable for bacterial colonization based on the trapping of microbes by mucus dependent exclusively on cell-mediated responses characteristics of all vertebrate animals dependent on tears, saliva, and mucous secretions that contain lysozyme, an enzyme that digests bacterial cell walls
Answer:
The correct answer is - characteristics of all vertebrate animals.
Explanation:
Innate immunity is the first line of the immune system that comes with birth whereas adaptive or acquired immunity is the immunity that comes throughout life by experiencing or developing the immune system. Adaptive or acquired immunity is the immune response that comes through cell-mediated responses whereas innate immunity is the immune response that includes sweat glands and secretion from the skin. innate immune responses also include digesting and killing bacteria by the saliva, enzymes, lysozymes.
The only characteristic among these that present in both is that they both immune systems found in all vertebrates.
3. Are vaccines available to prevent HIV and cancers?
(3)
Lyme disease, rabies, and malaria are mostly spread bya.bites from animals, such as dogs and mosquitoes.b.contaminated foods, like chicken and beef.c.contaminated objects, like doorknobs.d.indirect contact with an infected person.____6.Many pathogens are kept out of the body by thea.immune system.b.inflammation response.c.lymphatic system.d.skin. ____7.Your body's first line of defense against infectious disease includesa.skin, mucous membranes, saliva, and tears.b.phagocytes, lymphocytes, and pus.c.T cells, B cells, and antibodies.d.the lymphatic system, immune system, and inflammation response.____8.The body's second line of defense against pathogens isa.a vaccine.b.immunity.c.inflammation.d.the skin.____9.The body's third and most sophisticated line of defense against pathogens isa.a vaccination.b.inflammation.c.the immune system.d.the skin.____10.What produces active immunity
Answer:
Explanation:
6. Lyme disease, rabies, and malaria are mostly spread by bites from animals, such as dogs and mosquitoes.
7. Your body's first line of defense against infectious disease includes skin, mucous membranes, saliva, and tears.
8. The body's second line of defense against pathogens is Immunity.
9. .The body's third and most sophisticated line of defense against pathogens is a vaccination.
10.
kinetic energy is a function of
A. the Kelvin temperature scale
B. direction
C. velocity
Question 1. What change led to an increase in the number of light-colored moths within the population?
1. More mutations
2. Decreased pollution
3. More dark colored trees
4. Fewer humans
Question 2. Claim: Individuals in a population have genetic variations that can be passed on to their offspring. Refer back to the rabbits in the desert from the natural selection activity we did in class. How could an organism's traits influence the survival rate of the population?
Answer: 1. 1. More mutations. 2. According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
Explanation:
How does evolution work to create the diversity of life on Earth?