Answer:
8
Explanation:
It was correct on my test.
what do you think? So why don't t apes walk upright like us?
Apes were basically monkeys. They walk on their hands and feet but crouched. There's a bunch of theories saying that humans evolved from apes. As apes evolved, they started walking upright.
UNIT TEST!! Help!! :C
1. Which statements describe gene therapy? Check all that apply.
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA.
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
2. A fruit fly has black eyes. Having red eyes is a dominant trait (R) and having black eyes is a recessive trait (r).
Which describes the fruit fly’s genotype and phenotype?
A.)genotype: black eyes
phenotype: Rr
B.)genotype: black eyes
phenotype: rr
C.)genotype: rr
phenotype: black eyes
D.)genotype: Rr
phenotype: black eyes
Thank you sm for helping <33
Answer:
for number one i got ☐ It involves the modification of DNA
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
FOR NUMBER TWO I GOT:
D.)genotype: Rr
phenotype: black eyes
plz mark brainliest!!!
Answer:
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA. √
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA. √
☐ It does not always cure patients who use it. √
Explanation:
Hybrid cars can switch back and forth between gasoline power and electric power in a way that reduces fuel use
As a result, they are more fuel efficient than traditional cars that run only on gasoline. They offer one solution to
the problem of people consuming too many fossil fuels to meet their transportation needs.
Which of the following behaviors could further refine this solution?
A. People can drive hybrid cars instead of using more conservative tecnics.
B. People can drive separate hybrid cars instead of carpooling
C. People can use additional conservation tactics, like sometimes bicycling
D. People can drive hybrid cars more often than they need to
Answer:
C. People can use additional conservation tactics, like sometimes bicycling
Explanation:
According to this question, cars called HYBRID cars are said to have the ability to switch back and forth between gasoline power and electric power in a way that reduces fuel use. This solves the problem of buying excessive transport fuel.
Asides the hybrid car, one can also use a more conservative approach, which is bicycling. Hence, the use of additional conservation tactics, like sometimes bicycling.
In very dry environments, sand can pile into large dunes.
The wind causes ripples on the surface of the sand.
Fossilized ripples of windblown sand
What do fossilized dunes such as the one shown in the photo tell scientists
about the environment?
A. It was once cold and wet.
B. It used to be a glacier.
C. It used to be an ocean.
OD. It was once dry and windy.
Answer:
D
Explanation:
the picture has ripples and is dry and cracked, hence the envirmoment having to be dry and windy.
Answer:
It was one dry and windy.
Explanation:
You look at the cell under a microscope and see that it has 34 body chromosomes and one nucleus. Second view: Several hours later, you look at the same cell again and see that it has double the amount of DNA and one nucleus. Third view: A little while later, you see that it has one cell with 68 chromosomes and two nuclei. What stage of the cell cycle was this cell in when you viewed it at each time point
Acid rain contributes to all of the following problems except:
A.) Smog
B.) loss of biodiversity in aquatic ecosystems
C.) Damage to vegetation
D.) Advance chemical weathering
Answer:
Option A ( Smog ) .......
HELLPP I NEED THE ANSWER NOW!!!!!
Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?
A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density.
D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density.
Answer:
B
Explanation:
The water has become polluted,as evidenced by the decrease in the number of bloodworm species
What effect do glass panels have on the infrared photons ?
Answer: The glass pane absorbs and re-radiates all of the infrared photons. The glass pane absorbs all invisible photons as well as visible photons. The glass pane transmits all invisible photons as well as visible photons.
What is likely missing
from the following
food chain:
berries→ snake →
owl?
A. Bear
B. Mouse
Answer: Mouse
Explanation: Because a snake is a carnivore, it does not make sense for a snake to eat berries. However, by adding a mouse between berries and snake, the food chain will make sense.
can someone explain it or maybe give me the answer, im desperate :)
4. Many of your body’s responses operate off of either negative or positive feedback loops. When you are cold, you shiver. Explain why that happens.
Answer:
The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. If these values get too high or low, you can end up getting very sick.
Homeostasis is maintained at many levels, not just the level of the whole body as it is for temperature. For instance, the stomach maintains a pH that's different from that of surrounding organs, and each individual cell maintains ion concentrations different from those of the surrounding fluid. Maintaining homeostasis at each level is key to maintaining the body's overall function.
Explanation:
shivering burns fat to help keep one warm
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Khan academy
1. A protein in a cell membrane changed its
shape to move sodium and potassium ions
against their concentration gradients. Which on
molecule was most likely used by the protein
as an energy source?
A. ATP
B. ADP
C. catalase
D. amylase
Answer:
B. Lactic acid is produced
Can someone help me?
NEED HELP ASAP BIOLOGY 20 POINTS
Answer:
It Is Number 3 My Grandmother Is A Doctor
Explanation:
Trust Me Its Number 3 She Has Been Working For 15 years btw
GIVING BRAINLIEST TO CORRECT ANSWER!
What would cause water to turn from a gas to a solid?
A) Take energy out of the system
B) Put energy into the system
C) Increase the water’s mass
D) None of the above
Answer:
A
Explanation:
It takes or releases energy during phase change
how does light affect poultry production?
Answer:
Red light stimulates and promotes sexual activity and increases growth rates for chickens and turkeys at the beginning of the rearing period. It also increases locomotion, thereby minimizing leg disorders at the end of the rearing period.
Explanation:
Answer:
Red light stimulates and promotes sexual activity and increases growth rates for chickens and turkeys at the beginning of the rearing period. It also increases locomotion, thereby minimizing leg disorders at the end of the rearing period.
Explanation:
look up ur question and the answer is there
disadvantages of parthenocarpy to the plants
Answer:
-Seedless fruits can not be used to produce new progeny of any plant.
-Parthenocarpy is undesirable in nut crops because the seed is the edible part.
-Quality and Size of fruits get changed in case of Parthenocarpic fruits as compared to the normal state.
Explanation:
Which is an example of antiracist behavior?
A. Rachel pretends she didn't hear a negative comment about
Latinos.
B. Rachel mentions that some of her best friends are Latino.
C. Rachel says it's wrong to say negative things about Latinos based
on a stereotype.
O D. All of the above
Does hereditary deafness affect the person's lifespan.
Answer: Yes, yes it does
Answer:
No, it will just make it harder.
A mutation in the gene coding for a single-polypeptide enzyme results in the substitution of the amino acid serine, which has a polar R group, by the amino acid phenylalanine, which has a nonpolar R group. When researchers test the catalysis of the normal enzyme and the mutated enzyme, they find that the mutated enzyme has much lower activity than the normal enzyme does. Which of the following most likely explains how the amino acid substitution has resulted in decreased catalytic activity by the mutated enzyme?
A The substitution decreased the mass of the enzyme so that the mutated enzyme binds more weakly to the substrate than the normal enzyme does.
B The substitution altered the secondary and tertiary structure of the enzyme so that the mutated enzyme folds into a different shape than the normal enzyme does.
C The substitution caused many copies of the mutated enzyme to cluster together and compete for substrate to bind.
D The substitution caused the directionality of the enzyme to change such that the amino terminus of the normal enzyme has become the carboxy terminus of the mutated enzyme.
Answer:
Bats have few natural predators -- disease is one of the biggest threat. Owls, hawks and snakes eat bats, but that’s nothing compared to the millions of bats dying from White-Nose Syndrome. The disease -- named for a white fungus on the muzzle and wings of bats -- affects hibernating bats and has been detected in 33 states and seven Canadian provinces. More than 6.5 million bats have died so far from White-Nose Syndrome. Scientists are working to understand the disease. You can help -- avoid places where bats are hibernating, and if you do go underground, decontaminate your clothing, footwear and gear.
Explanation:
the answer is c
Which of the following is not an example of an ecosystem service?
a. water is purified as it trickles down through a wetland
b. green plants provide a carbon sink that can help reduce global warming
c. creativity born from interactions with nature
d. all of these are examples of ecosystem services
I could really use some help
The one that is not an example of an ecosystem service is creativity born from interactions with nature. The correct option is c.
What is an ecosystem?An ecosystem is a geographical area in which plants, animals, and other species, as well as weather and scenery, coexist to produce a life bubble. Ecosystems comprise both biotic (living) and abiotic (nonliving) components.
Plants, animals, and other species are examples of biotic factors. A marine ecosystem, for example, contains 32% of the world's producers because water covers three-thirds of the earth's surface and provides a natural habitat for a diverse range of small and large living species and plants.
Therefore, the correct option is c. creativity born from interactions with nature.
To learn more about the ecosystem, refer to the link:
https://brainly.com/question/19267717
#SPJ2
In griffins, the allele for black feathers (B) is dominant over silver feathers (b) which are recessive. Two black griffins are crossed and have a silver offspring. What is the genotype of the parents?
Answer:
The correct answer is - Bb and Bb.
Explanation:
In this case, there are two traits decided by the black "B" allele that is dominant over "b" which is silver. In this case the cross between two black feather birds and the there would be genotype:
BB and BB or Bb and Bb or Bb and BB
1. In first case, and the third case, there is no or only one allele for the silver trait so the correct answer would be - Bb and Bb
B b
B Bb Bb
b Bb bb
thus, the correct answer is - bb which is silver feather.
Most available freshwater is used for
Answer:
ok so In most regions of the world, over 70 percent of freshwater is used for agriculture.
EOC Biology STAAR Test Prep
In humans blood type is determined by the A, B, and O alleles. The A and B alleles are codiminant to each other and dominant over the O allele. An individual with the AO genotype and an individual with the BO genotype can produce offspring with which of the following phenotypes.
O only
A or B only
A, B or O only
A, B, AB, or O
Please explain, also this is not a test its a test PREP
Answer:
D. A, B, AB, or O
Explanation:
We can start by visualizing all the possible genotypes of the offspring by drawing a Punnett square, which is a visual representation of the different possible combinations of alleles:
Individual 1 = AO, Individual 2 = BO
A O
B AB BO
O AO OO
Here we can see that there are 4 possible genotypes: AB, BO, AO and OO based on the alleles of the parents. Now we can match the genotypes to phenotypes to answer the question:
A and B are codominant, meaning that both will be expressed equally if both are present. Therefore the genotype AB will result in an AB phenotype.
Next, since A and B are both dominant over O, they are the alleles that will be expressed in the phenotype if paired with an O. This means that the genotype AO will result in an A phenotype, and likewise, genotype BO will result in phenotype B.
Finally in the genotype OO, although O is a recessive allele, there are no dominant alleles here to mask them, therefore O is expressed in the phenotype.
Hence, from the genotypes AO and BO, the possible offspring genotypes are AB, BO, AO and OO, translating to the possible phenotypes: A, B, AB or O.
Hope this helped!
What does the Serengeti ecosystem smell like?
Answer:
Everywhere you look, the world is truly wild, in a way that's just breathtaking. What does it smell like? You wouldn't think it would be noteworthy, but the whole Serengeti smelled clean. Fresh, kind of, with just a trace of dust on the wind.Explanation:
Which nitrogen bases (codon) in the mRNA code for the amino acid Valine?
Answer: GUU, GUC, GUA, GUG
Explanation:
Sea turtles, mosquitoes, and frogs all show a
c I think it is c have a good dsy
what is the genetic of finger?
Explanation:
this is the answer hope it works
How would the Earth's climate change if its obliquity shifted from 23.4° to 0°, and all other factors remained the same?
A-Global warming would increase rapidly.
B-It would shift the Earth into a global ice age.
C-The seasonal changes would be more extreme.
D-There would be no seasons.
Answer:
There would be no seasons.
Explanation:
The tilt of the Earth's axis is what causes seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere. If there was no tilt, the rays hitting the Earth would have minimal changes, meaning no seasons.
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: