Which of the following choices contains two ways in which carbon enters the atmosphere?
A. Erosion and transpiration
B. Volcanic Activity and Photosynthesis
C. Human Activity and Nitrogen-Fixing Bacteria
D. Emissions from Factories and Respiration
Answer:
d. or c. is what I think I limited your options
2. When calculating the recombinant frequency of two genes, what is
the most important factor?
O A. how close they are to each other
OB. how close they are to the end of the chromosome
Oc. whether they are on the X or Y chromosome
OD. which one is higher on the chromosome
Answer:
A
Explanation:
The most important factor is how close they are to each other.
• The physical swapping of the pieces of chromosomes at the time of meiosis is responsible for the recombination of genes.
• The swapping can take place anywhere along the length of the chromosome, that is, in any part of the gene.
• The recombination frequency between the two genes is equivalent to the ratio of offspring in which the event of recombination took place between the two genes at the time of meiosis.
• The determination of the recombination frequency is done by the frequency of the recombination events between the two genes in meiosis.
• The more the physical distance between the two genes, the more is the probability that the recombination take place during any meiosis event.
Thus, the correct answer is option A.
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Which breed of beef cow is know for its good meat
quality?
O Angus
O Hereford
O Holstein
O Charolais
Answer:
Angus
Explanation:
On what basis are minerals divided into groups?
Answer:
Minerals are grouped by their chemical composition. Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all major mineral groups
10. What do limiting factors control?
A.the size of an organism
B.the size of an ecosystem
C.the size of a habitat
D.the size of a population
Answer:
D.the size of a population
Explanation:
Hope I am right
What do chloroplasts and mitochondria have in comman? Choose the correct answer.
Answer:
Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell.
Explanation:
Fruit flies have 3 chromosomes plus sex chromosomes (X and Y). Mutations occurred within four different cells of an
individual female fruit fly as shown in the table below.
Which of these mutations could be passed on to the offspring of this fruit fly?
Group of answer choices
yellow body
leg-shaped antennae
curly wings
absent eyes
Answer:
Its either curly wings or yellow body
Explanation:
Question 1
Which of the students' observations will be most helpful in classifying a cell as either prokaryotic or eukaryotic?
Answer:
Explanation:
I can't answer this because there are no options given
What are some advantages of asexual reproduction when compared to sexual reproduction? (In your own words please for brainliest!!)
Answer And Explanation:
The advantages of asexual reproduction compared to sexual reproduction include the population being able to increase rapidly when the conditions are in their favour, only one parent is needed, it is more time and energy-efficient due to not needing a mate and it is faster than sexual reproduction.
Which substances is lost from the body of a healthy person by the kidneys, But not by the lungs
A. Carbon dioxide
B. Glucose
C. Urea
D.Water
Answer:
urea
Explanation:
urea is the liquid waste products that are filtered out of the blood by the kidneys
the answer is water substance
Which of the following illustrations BEST represents meiosis?
Group of answer choices
D
A
B
C
Answer:
The best choice is C
Explanation:
A flower species releases a strong odor that protects the flower by keeping predators away. The odor also prevents pollinators from visiting the flower. The flower is able to survive, but cannot reproduce. What is the relative fitness of this flower?
A. 50%
B.100%
C.75%
D.0%
Answer:A
Explanation:Because its a guess!
Which of the Microscopes.....
use a vacuum tube to allow the
movement of certain particles without any
disturbance?
Dissecting microscope
Light compound microscope
Scanning Electron microscope
Transmitting Electron microscope
Answer: scanning electron
Explanation:
Please HELP :((
In Rabbits, black fur (B) is dominant to white (b), and long ears (E) are dominant to short ears (e). What is the expected phenotypic ratio of the offspring of a BBee x bbEE cross if these alleles sort independently?
Answer:
A. 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
Explanation:
This question is a typical dihybrid cross i.e. involving two genes in rabbits. One coding for fur color and the other for ear length. The allele for black fur (B) is dominant to allele for white fur (b) and allele for long ear (E) is dominant to alelle for short ear (e).
In this question, a cross between two rabbits with genotypes: BBee x bbEE is performed. The following combination of gametes will be produced by each rabbit:
BBee - Be, Be, Be, and Be
bbEE - bE, bE, bE, and bE
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
All BbEe offsprings, which have a black fur and long ear phenotype.
Hence, the phenotypic ratio is 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
Arecent study has shown an increase in the number of predators in an ecosystem. Which of the following is a possible
cause for the growth?
A) a decrease in the land space available
B) an increase in the population of prey it feeds on
C) a decrease in the biodiversity of the ecosystem
D) an increase in the number of predators that feed on it
E) an increase in the plant life in the ecosystem
PLS HELP ASAP
Answer:
The correct answer would be - B) an increase in the population of prey it feeds on.
Explanation:
In an ecosystem, if there is an increase in the number of predators there are several possible conditions behind it. The most suitable and important factor that can lead to this is an increase of prey they rely on.
If there is an increase in numbers of prey in the particular ecosystem then there would be more food and resources for predators which help in growing the development of predators.
Answer:
The correct answer is D. on EDGE
Explanation:
Which of the following is not a cnidarian?
a. hydra
b. sea anemone
c. clam
d. coral
Answer:
clams is NOT A CNIDARIAN
Explanation:
Hope this helps!!
Answer:
coral
Explanation:
heat flows from matter with __________________ temperature to matter with ____________________ temperature
Answer:
warmer to cooler
Explanation:
Heat flows naturally from a warmer object (higher energy) to a cooler one (lower energy). As you add thermal energy to an object its temperature will increase. Name two factors that will affect how much the temperature of a substance will change.
Describe the relationship between ATP and ADP molecules
Answer:
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. ... When it's run down, it's ADP.
Hope this helped!!
What is more important, environmental preservation or acquisition of earth’s materials? | ~ ( Back up your response with actual scientific facts. ) ~ |
Answer:
These more qualitative benefits are difficult to measure, but are important aspects and benefits of land preservation more generally. Furthermore, these benefits illustrate how protecting and preserving natural lands for more traditional reasons – habitat protection, conservation, recreation, water quality – often overlap with biodiversity
Explanation:
hope this helps
marke me please
What is the definition of a gene?
Plz help im desprate
The concentration of the solute in the solution is lower than the concentration inside the cell
When a cell is placed in this solution, more water enters the cell than it leaves it
The concentration of the solute in the solution is higher than the concentration inside the cell
The concentration of the solute in the solution is the same as in the cell
Causes water to move across the cell membrane
Causes a cell to swell
When a cell is placed in this solution, more water will leave the cell than it enters it
Doesn’t change the shape of a cell as the same amount of water enters and leaves the cell
Hypotonic Solution
Isotonic Solution
Hypertonic Solution
Answer:
n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that
wartime often brings out the worst in people.
children always tend to defend their parents.
difficult times tend to tear friendships apart.
people are not always as they appear to be.
Explanation:
n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that
wartime often brings out the worst in people.
children always tend to defend their parents.
difficult times tend to tear friendships apart.
people are not always as they appear to be.
In which layer is lithification most likely to accur?
Answer:
Subsoil is the most likely layer in which lithification is to occur.
What purpose does a female pine cone serve?
A.
It protects the seed until it matures.
B.
It makes food for the adult plant.
C.
It allows for photosynthesis to occur.
D.
It acts as an object to attract birds.
E.
It serves as an ornamental object on the tree
Answer:
It protects the seed until it matures
Explanation:
Pine cones don't have chroloplasts so they can't produce photosynthesis. Pine cones are rough and spiky and birds wouldn't want to put something rough and spiky in their nests where they raise their young. But it is rough and spiky enough to protect the seed until it's been dispered far enough to break open the shell and start growing.
Answer:
A.
It protects the seed until it matures.
I hope this helps
Which of the following would be an effect of a hurricane on an ecosystem?
O A forest fire burns the plantlife close to the ground.
O The salt concentration in an area of water increases due to an influx of seawater.
O Plant life dies due to a lack of available water.
O A hard freeze kills the local plantlife in a forest ecosystem.
Discuss the importance of fossil records in identifying the level of evolution took place in the planet earth
Answer:
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. Paleontologists can determine the age of fossils using methods like radio metric dating and categorize them to determine the evolutionary relationships between organisms
Guy’s pls help !!!!!!
In a population of Amish people, the frequency of the recessive autosomal allele for polydactyly is 1.2%. What percent of the population are heterozygotes for the polydactyly allele
Answer:
2.37%
Explanation:
Explain convection in earths mantle
Answer:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Explanation:
In a breed of horse, the brown coat is codominant with a white coat. If the resulting offspring are heterozygous for coat color, what will be the phenotype of the offspring?
Answer:The coat will have both brown and white.
Explanation: Codominant traits are traits that both are both dominant, meaning they are both showing in the offspring if the offspring is heterozygous (meaning they have a mixed genotype ex: Bb or BW.)