Answer:
D. Meiosis ensures a wider variety of genetic variation.
This happens above all thanks to the Crossing over, the process in which the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids results in recombinant chromosomes.
What is the chemical symbol of Hydrogen?
Answer:
the symbol for hydrogen is H
Help
What is digestion? Compare and Contrast monogastric and ruminant digestion. Which animals are ruminants and which are monogastric? What organs do ruminants have to help them digest? What chemical compound can ruminants digest that ruminants cannot?
What organs do birds like chickens have and why? What is unique about a horse's digestion
Answer:
Liver
Explanation:
The roots growing down is an example of _______________
A. positive geotropism
B. negative geotropism
C. Phototropism
D. Thigmotropism
Answer:
positive geotropism
Explanation:
The answer is positive geotropism
What structure encloses almost all bacteria? Do bacteria have a structure that encloses the genetic material?
What is a learned behavior?
A behavior passed down from parents
A behavior shaped by the environment
A behavior that develops naturally
A behavior that helps an organism camouflage
A learn behaviour is a type of a behaviour shaped by the environment.
What is learned behaviour?Learned behaviour can be defined as the type of behaviour where by an organism develops a new way of living through life experiences from its environment.
Therefore, a learn behaviour is a type of a behaviour shaped by the environment.
Learn more about behaviour here:
https://brainly.com/question/1741474
#SPJ1
What are Hox genes?
-Hox genes regulate sex determination in mammals.
-Hox genes regulate flower development.
-Hox genes encode transcription factors that respond to steroids.
-Hox genes encode transcription factors with a DNA-binding domain called a homeo box and regulate development of the vertebrate body plan
- Hox genes are transcription factors that bind to specific DNA sequels called homeodomains
and regulate development of the vertebrate body plan.
Hox genes are transcription factors that bind to specific DNA sequences called
homeodomains.
Answer:
Hox genes regulate sex determination in mammals.
-Hox genes regulate flower development.
-Hox genes encode transcription factors that respond to steroids.
-Hox genes encode transcription factors with a DNA-binding domain called a homeo box and regulate development of the vertebrate body plan
- Hox genes are transcription factors that bind to specific DNA sequels called homeodomains
and regulate development of the vertebrate body plan.
Hox genes are transcription factors that bind to specific DNA sequences called
homeodomains.
Explanation:
Answer:
Genes that control the overall look of the body
Explanation:
Explain how altitude affects ecosystems
Answer:
More specifically, biomes are determined primarily by temperature and precipitation and altitude is going to have effects on both temperature and precipitation. As altitude increases, temperature decreases. ... Thus, altitude is going to affect both temperature and precipitation which will affect the composition of biome.
Illness or condition that negative affects my organ
System
Answer:
some illnesses that can affect your organ system are heart disease, asthma, and cancer
Answer:
Autoimmune hepatitis, Graves' disease, type 1 diabetes, and Cystic fibrosis.
Explanation:
Which of these does Not occur during mitosis.
1. Separation of chromatids
2. Dissolving of the nuclear envelope
3. Division of the cytoplasm
4. Formation of chromosomes
Answer:
I'm not sure, but I think it's 4
explain how pH and temperature can affect enzyme activity
Please help has to be due in 20 mins. Thank you for helping me.
Answer:
Enzyme activity depends on many factors such as Substrate concentration, enzyme cofactor, enzyme inhibitors, pH, and temperature. pH and temperature are two important factors that directly affect the activity of an enzyme as follows:
1. pH
Each enzyme has the specific optimal pH that allows it to perform its function to its fullest. The enzymes are the protein made up of the interaction of the hydrogen bond in the side chain of the protein. if there is any change from optimum pH, the enzyme activity decreases until it stops working.
2. Temperature:
Each enzyme has its own optimal temperature. Any modification or change in temperature results in the activity of an enzyme, and it also leads to the denaturation of an enzyme as it is made up of protein.
i need help with this please
Answer:
12: curly wings
13: normal wings
14: normal wings
for the last three the data would look like AA, Aa, aa
Also let me tell you this as a junior in high school this year of science is the easiest thing ever
Explanation:
What do you think some person don’t have traits
Answer:
Why do you think some people don't have traits.
Well everyone has traits that are inherited by their parents.
Explanation:
Ex. Punnet squares
But some people do not have mutations if that is what you are asking, (although it is very very rare)
Hope it helps :)
What effect does burning fossil fuels during manufacturing and energy production have on outdoor air pollution?
Answer:
It causes global warming as well as air pollution.
Explanation:
Burning of fossil fuels has adverse effect on outdoor air pollution because when the fossil fuels burns carbondioxide gas is released in the atmosphere. Carbondioxide gas is a greenhouse gas which is released in the atmosphere through burning of fossil fuels and is responsible for increasing air pollution. This increase in carbondioxide gas leads to global warming due to blockage of solar radiation that is reflected from the earth surface.
How would Earth be different without the greenhouse effect?
A. There would be more solar energy reaching Earth.
B. There would be more ice on Earth's surface.
C. The oceans would contain more carbonic acid.
D. The atmosphere would contain more methane.
T
A
A
C
G
C
A
G
What is the order of bases that will compliment this side of a DNA strand
Answer:
A, T, T, G, C, G, T, C
Explanation:
A becomes a T
T becomes a A
C becomes a G
G becomes a C
What kind of seeds should farmers plants in order to grow giant pumpkins,and why is this important?
Answer:
Pumpkin plants need a lot of sun. Choose the sunniest place you have; remember that pumpkins are sensitive and will need shelter from wind and frost. Try to protect pumpkins from the worst of the elements by covering them during heavy rains, or putting up some kind of barrier to protect the vines from high winds or using shade tents during summer’s hottest days.
Pumpkins like and need a lot of water, but don't plant pumpkins in wet or dense soil. They need good, well-drained soil. You can dig it up by hand. Don’t use a tractor, pumpkin roots don’t go down very far. Prepare the soil in early spring, as soon as the ground is warm. Fertilize the patch with a good four inches of rotting cow manure. Pumpkins do best in soil that is slightly acid or nearly neutral.
If you live in a part of the country where there is still danger of frost in late April or early May, start pumpkin seeds indoors about two weeks before planting. Sow one seed for every four-inch peat pot filled with grow mix. Keep the pots watered, never let them dry out.
How to Plant Pumpkins
When seedlings have the fourth or fifth leaf, set them outdoors in hills about the size of a pitcher s mound, one plant to a hill. Protect pumpkin seedlings the first few weeks with plastic-covered frames. Space each hill at least 20 feet apart.
Growing Fall Pumpkins and Gourds
How to Fertilize Pumpkin Plants
Pumpkin plants have two kinds of flowers, male and female, which appear in early July. The male flowers show up first, followed by the females. Look out for the first female flowers. Look for vines to be strong and well-established before letting a female flower set fruit. It might help to break off the first female on each vine and wait for the second or third, when the vines are at least ten feet long. A female is easy to recognize: she has a baby pumpkin at the base of each flower.
You need a big vine to produce a big pumpkin, so in a sense you’re choosing the vine before the pumpkin. When you find a vine that’s strong enough and a female flower on the verge of opening, put a bag of cheesecloth over it for the night to keep the insects out. The next morning pick a fresh male bloom, trim off the corolla or outer petals, and rub the pollen-laden stamen in around the center of the newly opened female bloom.
How to Grow Pumpkins
Giant pumpkinsThis is just the beginning of a summer of long but rewarding work. What you have started is actually a pumpkin-producing factory. Remember that there are 100 or more leaves to each vine and if you are trying to grow a 300-pound pumpkin, each leaf is responsible for up to four pounds of weight in your pumpkin. Every leaf, every stem, every hair roots is now receiving sunlight, absorbing water, and blending nutrients. All are traveling down the all-important stem to your prize pumpkin.
Giant pumpkins balloon out from the vine and if precautions are not taken, they will tear away and lose touch with their all-important stem. Since vines put out roots at every leaf, tear out the roots of the vine where it is close to the pumpkin. This will give it free room to grow without damage to the vine. Gently train vines away from the pumpkin to prevent it from crushing them, try giving them a nudge in the right direction every day.
When two or three fruits on each plant reach the size of softballs, remove all but the most promising one and start to prune the pumpkin plants. After the primary vine has reached 20 feet, pinch off the tips and the side shoots so the vines won't divert resource from the fruit. Break off all the other female flowers A potential prizewinner is forming. The work of the plant now must go entirely toward nurturing this fruit alone.
It is important to remember that the only thing that will increase the size of the fruit comes out of the vines and the vines must get support from the natural root. For growing really big pumpkins, the most important things to remember are seeds, soil, sunshine, and water.
By mid-August the plants are pulling in water and nutrients at a great rate. Nighttime is when pumpkins do their growing, most expand two inches in circumference every night.
If it’s a dry season, give each plant 15 to 20 gallons of water twice a week. Water in the evening, and water only the base of the plant to keep the leaves dry, which reduces the risk of disease.
Hope it helps,
Please mark me as the brainliest
Thank you
The "Dill's Atlantic Giant" seed will produce a pumpkin that typically grows to reach between 200 and 300 pounds. They are not used for eating instead are carved and decorated.
What is the best way to grow pumpkin ?Long sunlight hours are preferred by pumpkins, so choose your garden location accordingly. Select a location with sufficient surface drainage and stay away from shaded regions. Additionally, being close to a water supply is crucial because these pumpkins need a lot of water to grow to their full potential.
Monster pumpkin seeds should germinate in soil that is 70 to 90 degrees Fahrenheit and 65 to 75 degrees in the air. Plant pumpkins from seeds indoors and transplant the seedlings to your garden five to seven weeks later. After the final frost in late May, plant. Avoid locations with complete or partial shade because full sun is crucial.
Therefore, its important to grow giant pumpkins used for ornamental purpose.
Learn more about pumpkins, here:
https://brainly.com/question/18881889
#SPJ6
explain reproduction in hydra
Answer:
Budding
Explanation:
The common asexual method of reproduction by hydras is budding. Buds originate at the junction of the stalk and gastric regions. The bud begins as a hemispherical outpouching that eventually elongates, becomes cylindrical, and develops tentacles. The bud then pinches off and a new individual becomes independent. Buds are produced every two to three days under favorable conditions. Following unfavorable conditions, such as injuries or periods of scarce resources, hydras occasionally reproduce through transverse and longitudinal fission.
brainliest someone help me plz
Which of the following biological processes releases oxygen into the
atmosphere?
A. Transpiration
B. Paristalsis
C. Respiration
D. Photosynthesis
Answer:
D. Photosynthesis.......
Which best describe the structure of DNA?
Answer:
DNA structure
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation:
In a food chain, energy moves from producer to herbivore or
and then on to other consumers.
Answer
energy
food web
omnivore
all of the above
Answer:
To other consumers.
Can someone help me with question 1 pls:)
answer:
c d e
good luck :)
hopefully, this helps
have a great day !!
Fossils are often hardened remains of organisms that once lived, such as a bone or tooth. Which characteristic of sedimentary rock makes
it likely for fossils to be found in this type of rock?
A. An organism's remain become hardened when covered by melted rock.
B. Organisms are changed into rock by high temperature once they are no longer living.
C. The remains of organisms are buried under layers of sand, shells, and bits of rock.
D. The bones of an organism are pulled below Earth's surface during an earthquake.
Answer:
C as most fossils are created in the ocean
Explanation:
If i'm wrong please tell me if i'm right please mark me brainliest
A bird that can easily out complete other birds for its food and that can produce many eggs has high what?
Answer:
Fitness or aptitude
Explanation:
Aptitude (or fitness) is the genotype/phenotype that results in the survival, fertility, and capability of having a mate. It is a way of measuring the individual ability to leave fertile offspring.
Aptitude puts together everything that matters in natural selection. Includes the survival capability, finding a mate partner possibility, producing fertile descendants, and leaving the genes to the next generation. The aptitude of a genotype must be significant for natural selection to act in its favor.
list the planets from smallest to largest:
Answer:
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter
Explanation:
Answer:
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.
Explanation:
what is a population?
Which of the following is the best solution to meet energy demands while protecting the environment?
A grow more corn to produce ethanol
B. build more nuclear power plants
C. find and burn new sources of oil and coal
D. improve energy efficiency and reduce energy waste
Answer: D
Explanation: just took the quiz
The best solution that meets the energy demands while protecting the environment is to improve energy efficiency and reduce energy waste. Thus, the correct option for this question is D.
What is the Environment?The environment may be defined as a sum total of all forms of living and non-living elements and their consequences that significantly influence human life. It includes biotic and abiotic factors. The term environment is first given by Carlyle.
The protection of the environment requires a lot of actions by humans and the cooperation of other living organisms as well. All these actions impact the protection of the environment and improve energy efficiency along with the reduction in energy waste.
Therefore, improving energy efficiency and reducing energy waste is the best solution that meets energy demands while protecting the environment. Thus, the correct option for this question is D.
To learn more about the Protection of the environment, refer to the link:
https://brainly.com/question/14956213
#SPJ2
ANSWER QUICK!!
One of the bacteria in Model 1 has a tail-like structure.
a) What is the structure called?
b) What might be the purpose of this structure?
c) Based on your answer of the previous question, what might you infer about the absence of this structure in the other two bacteria cells?
From the bacterial model:
(a) the tail-like structure is known as the flagellum (plural, flagella)
(b) The primary function of the structure is to aid movement. It is moved in a whip-like version to propel the organism.
(c) Based on the absence of of flagellum in the other two bacteria, it means that they are not motile.
The presence of flagellum in bacteria is an indication that such bacteria are motile. The thread-like structure is whipped randomly in order for the organism to move and the absence of it in an bacterium is an indication that such a bacterium is not motile.
More on bacterial motility can be found here: https://brainly.com/question/23021688
T or F _ Cytosine, guanine, thymine and adenine are referred to as phosphates.
T or F DNA is in the shape of a helix.
A nucleotide is made up of a suqar, phosphate and two nitrogen bases.
Replication is performed prior to cell division.
Adenine always pairs with quanine.
Complementary base pairing matches up complementary sugars.
T or F _The sides of the DNA molecule are made up of repeating nitroqen bases and suqars.
The letters that make up the DNA molecule code for qenes.
T or F _ Replication results in two strands of DNA, each of which has half of the oriqinal strand.
T or F Covalent bonds hold nitrogen bases together, forming the rings of the DNA ladder.
Answer:
f t f t t t f ? t f
Explanation:
Cytosine, guanine, thymine and adenine are NOT referred to as phosphates (they are nitrogen bases), whereas DNA is in the shape of a double helix'.
A nucleotide is made up of sugar, phosphate and a nitrogen base.The replication is performed after cell division.Adenine always pairs with thymine, whereas cytosine pairs with guanine.Complementary base pairing matches up nitrogen bases.The letters that make up the DNA molecule code for genes.Replication results in two strands of DNA, each of which has half of the original strand.Hydrogen bonds hold nitrogen bases together, forming the rings of the DNA ladder.In conclusion, Cytosine, guanine, thymine and adenine are NOT referred to as phosphates (they are nitrogen bases), whereas DNA is in the shape of a double helix.
Learn more in:
https://brainly.com/question/1480756
what is the central feature of the cell cycle
Answer:
The central components of the cell-cycle control system are cyclin-dependent protein kinases (Cdks), whose activity depends on association with regulatory subunits called cyclins. Oscillations in the activities of various cyclin-Cdk complexes leads to the initiation of various cell-cycle events.
Explanation: