Answer:
RBCs ( Red blood carpuscles )
WBCs ( White blood carpuscles)
Where does the cellular respiration occur in the biosphere? Check all that apply?
Answer:
what's the answers it give u
Explanation:
I might be able to help
Answer:
in producers
in consumers
Explanation:
I JUST DID ON EDGE
Does Interphase have stages?
Because... a certain search site says "3 stages" or "4 stages" but then my textbook says "critical events"
I need desperate help.
Answer:
No, interphase does not have stages.
Explanation:
The cell cycle has 3 phases: Interphase, Mitosis, and Cytokinesis. Interphase is the longest phase. During that stage, the cell grows to its full size and duplicates its DNA. These steps are not counted as stages.
Sorry if this is wrong, this is just what my teach taught me.
Energy can be transformed from one form to another. The diagram shows one such process.
Answer:
are u talking about what that energy is called or is it true or false
Fossils help us reconstruct plant and animal life in the past as well as their evolutionary processes, which can be either slow or rapid.
a. True
b. False
Answer:
True
Explanation:
When we talk about fossils, we are referring to the remains of organisms that had once lived. These are traces of the organisms that existed in the distant past.
These fossil records help us to reconstruct plant and animal life in the past as well as their evolutionary processes, which can be either slow or rapid.
Fossil records reveal extinct species and help us to make sense of the evolutionary processes on earth.
True or false. In nature organisms produce more offspring than can survive.
Answer: True
Explanation:
Organisms produce more offspring than actually survive. Organisms can die from many causes: disease, starvation, and being eaten, among other things. The environment can't support every organism that is born. Many die before they are able to reproduce.
what causes natural selection to occur?
Pink eye is a recessive trait found in deer mice. In a cross between two individuals, both of whom are heterozygous for the pink eye mutation, the following offspring are obtained:
Normal 18
Pink eye 2
Use the chi-square test to determine if the observed numbers of offspring fit the expected numbers of offspring from this cross. The value of is: ____________
Answer:
See the answer below
Explanation:
If pink eye is recessive, it means that the normal eye is the dominant trait. According to Mendelian law, the ratio of normal to pink eye in a cross involving two heterozygous mice should be 3:1.
Chi-square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = expected frequency.
Phenotype Observed Expected Chi-square
Normal 18 3/4 x 20 = 15 [tex]\frac{(18 - 15)^2}{15}[/tex] = 0.6
Pink 2 1/4 x 20 = 5 [tex]\frac{(2 - 5)^2}{5}[/tex] = 1.8
Total Chi-square = 0.6 + 1.8 = 2.4
Degree of freedom = 2 - 1 = 1
Critical Chi-square value at 95% = 3.841
The critical Chi-square value is more than the calculated value. Hence, the observed number of offspring fits the expected number of offspring.
1 Melody performed research for an engineering class in college. She took a sample of metal from a liquid nitrogen bath and placed it in a special oven. She then measured the temperature of the metal. The table shows the data Melody collected at different times. Time (min.) Temperatura (°F) -100 160 420 12 What is the rate of change in the temperature of Melody's metal sample? А -25 °F/min. 40 °F/min. B C 65 °F/min. D 260 °F/min.
Answer:
Explanation:
C. Just pick C.
Liquid nitrogen, which has a boiling point of -196C, is used for a number of purposes.
What is Liquid Nitrogen?It includes as a computer coolant, in medicine to remove warts, undesirable skin, and precancerous cells, and in cryogenics, which is the study of how materials respond to extremely low temperatures.
Additionally, it is increasingly being used at upscale restaurants to immediately freeze food and beverages or to produce a stunning cloud of vapour or fog when exposed to the atmosphere.
A relatively little amount of liquid nitrogen needs to evaporate within a room to produce an oxygen-deficient atmosphere since it has a significant expansion ratio during evaporation (one litre of liquid nitrogen can result in around 700 litres of gas).
Therefore, Liquid nitrogen, which has a boiling point of -196C, is used for a number of purposes.
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Dominant or Recessive?
Introduction and Instructions
If an ebony body color is dominant
over yellow, what would you expect
the F1 generation to look like? What
about the F2?
Drag and drop the correct flies into
the table.
NT
75%
25%
Answer:
F1: All ebony
F2: 75% ebony and 25% yellow.
Explanation:
Assuming that the ebony fly is heterozygous, it would carry one gene for yellow. So when crossed with a yellow fly they will have 75% ebony and 25% yellow offspring.
The offspring will inherit the dominant trait for ebony. But a few of the offspring will inherit all recessive traits for yellow.
The f1 generation will be all ebony.
The f2 will be 75% ebony and 25% yellow.
Hope this is correct, have a great day.
Pyruvate dehydrogenase deficiency is a genetic disease most commonly linked to a mutation in the a -subunit of the mitochondrial enzyme that causes the enzyme to cease functioning. As a result of the mutation, affected individuals build up dangerous amounts of lactic acid. Which of the following best explains the buildup of lactic acid in individuals with the mutation?
a. Cells use lactic acid to shunt electrons from pyruvate to the electron transport chain in the mitochondria.
b. Cells undergo glycolysis because there is a buildup of pyruvate in affected individuals.
c. Cells cannot transport pyruvate to the mitochondria in the absence of pyruvate dehydrogenase activity, so the pyruvate is broken down to lactic acid and ethanol
d. Cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle.
Answer: The correct option is D ( Cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle).
Explanation:
Pyruvate dehydrogenase is the enzyme that converts pyruvate to acetyl CoA which enters the Krebs cycle in glucose metabolism. The deficiency of Pyruvate dehydrogenase can be caused by genetic origin most commonly linked to a mutation in the a -subunit of the mitochondrial enzyme that causes the enzyme to cease functioning. As a result of the mutation, affected individuals build up dangerous amounts of lactic acid.
The increase in the level of lactic acid occurs due to the Increased action of lactate dehydrogenase enzyme. In the absence of Pyruvate dehydrogenase enzyme, the level of blood pyruvate increases. Excess pyruvate is then converted to lactic acid by lactate dehydrogenase enzyme in a process called lactic fermentation. This results in a buildup of lactic acid in the blood leading to a condition called lactic acidosis .
Therefore, cells undergo fermentation because pyruvate cannot be metabolized to proceed into the Krebs cycle.
What is an oxidation reaction?
A. A reaction in which an atom gains 1 or more protons
B. A reaction in which an atom loses 1 or more protons
C. A reaction in which an atom loses 1 or more electrons
D. A reaction in which an atom gains 1 or more electrons
(Answer is C)
Answer:
C
Explanation:
Answer: in an oxidation reaction an element loses one or more electrons
Explanation:
An oxidation reaction was originally defined as combining an element with oxygen, e.g. 2Ca + O2 —> 2CaO
Now we consider an oxidising agent as an electron acceptor, so the reaction need not include oxygen, e.g. Ca + S —> CaS. Ca loses electrons to S.
Which statement regarding cellular respiration is correct? *
Cellular respiration in plants occurs only during the day.
O All living organisms carry out some form of cellular respiration.
O Fungi and bacteria carry out aerobic cellular respiration only.
O Only plants and animals use glucose and oxygen for cellular respiration.
Answer:
I believe it is all living organisms carry out some form of resperation
Explanation:
The star 61 Cygni, in the constellation Cygnus, is a little more than 11 light-years from Earth. Which of the following correctly estimates the time it would take to reach 61 Cygni, based on speed of travel?
(A)22 years traveling at twice the speed of light
(B)11 years traveling at the speed of light
(C)5.5 years traveling at half the speed of light
(D)1.1 years traveling at one-tenth the speed of light.
Please help
Answer: B. I hope this helps
11 years traveling at the speed of light.
What kind of star is 61 Cygni?
The 61 Cygni binary system is the 28th-nearest known star system to us. Both are K-type dwarf stars in the main sequence, thought to have formed 6 billion years ago.
How far away is 61 Cygni?
At a distance of just over 11 light-years, it is the 15th-nearest-known star system to the Earth (not including the Sun). 61 Cygni A is the fourth-nearest star that is visible to the na.ked eye for mid-latitude northern observers, after Sirius, Epsilon and Procyon A.
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Summary how the Slow Carbon Cycle works. (where does the cycle start, How does the cycle move Earth? How does the carbon come out of the cycle?
Answer:
Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms. ... Humans play a major role in the carbon cycle through activities such as the burning of fossil fuels or land development.which is an example of a polygenic trait.
Answer:
im learning this rn
Explanation:
what are the choices? cant answer if u dont give the choices
PLZ HELPPPP !!!!! ME IM VERY MUCH LOST
WILL GIVE BRAINLIEST
In reviewing evidence from a cold case, Investigator Chang realizes that the original investigators did not collect any DNA evidence. She's found a possible blood spot on some clothing in evidence that could yield some DNA of the perpetrator. She also knows that the investigators had a suspect in mind but could never prove her involvement. However, the suspect was embalmed and buried five years ago.
Why will Investigator Chang be unable to collect DNA from the suspect?
DNA is no longer available after three years.
An embalmed body isn't suitable for DNA testing.
A body that has been buried in dirt corrupts DNA material.
DNA testing techniques can't extract DNA from dead bodies.
Answer:
An embalmed body isn't sutible for DNA testing
Explanation: I just took the rest and got it right
Pls help asal Coat color in rabbits is inherited by multiple alleles for a single gene. The table describes the alleles and their inheritance.
Coat Color in Rabbits
Alleles
Phenotype
(coat color)
Inheritance
Would it be possible to obtain a rabbit with Chinchilla coat color if one parent is
white and the other has a Himalayan coat color?
A. Yes, because the c allele is recessive to the caliele
B. Yes, the Himalayan parent rabbit's genotype is do
C. No, because the parents have no alleles for Chinchilla
D. No, becuase the ci ailele is dominant to the challele
Dominant to all
other alles
Dark gray
Chinchilla pattern
of coat color
Dominant to
Himalayan and
witte
Malayan coat
color
Dominant to write
с
White (albino)
Recessive to an
other alfetes
No, because the parents have no alleles for Chinchilla.
Which of the following
statements is incorrect?
A Daytime and nighttime hours
are equal.
B. The Sun is found on the
celestial equator, as seen from
Earth.
C. The Northem and Southem
Hemispheres receive equal
amounts of sunlight.
D. At this time of the year, the
Sun will reach its highest
elevation in the sky for
Northern Hemisphere sites.
Answer:
D at this time of year the sun will reach its highest elevation in the sky for the NH sites
Explanation:
when you press play on the starry night simulator the earth rotates and you will see that most of the sun is in the northern Hemisphere so I guessed and it was correct.
PLZZZ HELP ASAP!!! Will give BRAINLIST
How can an understanding of alcohol's effects on the nephron be used to explain many of the symptoms of a hangover due to over consumption of alcohol? (headache, thirst, fatigue, rapid heartbeat, memory loss). Hint: this is both an endocrine & excretory/water balance question.
WILL GIVE BRAINLEST 100 POINTS NEEDS PARAGRAPH
What are the advantages of offspring (babies) that are derived from sexual reproduction?
Answer: The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population
Explanation:
Answer:
when the guy you are having it with goes in you and when he finishes you might get pregnant
Explanation:
Hey everyone! I really need help, anything is great! (20 points!!!!!)
How is the carbon dioxide increase affecting humans, animals and plants?
I know about climate change/global warming so anything else would be great!
Thanks :)
Answer:
in many cities (around the world) where there are a lot carbon emissions, the whole city gets cover in smog. Making it hard to breathe and causing diseases like lung cancer, and astma.
Explanation:
in plants water is transported through?
Answer:
Water is sucked up xylem by mass flow (cohesion-tension) which decreases the water potential in the root xylem. So water diffuses through the root cells to the xylem which decreases the water potential in the root epidermis cells, so water diffuses into root hair cells from soil by osmosis.
Explanation:
Which of the following correctly describes one of the
products of photosynthesis or cellular respiration?
Explanation:The product of the photosynthesis are the same like product of cellular respiration,the products of photosynthesis are water and carbon dioxide to use it in cellular respiration,,, and also that the reactants of photosynthesis are the products of cellular respiration
Which type of star cluster is loose and disorganized?
Answer:
open clusterAs the name suggests, an open cluster is a star cluster that is loose and disorganized.
Explanation:
The type of star cluster that is loose and disorganized is Open Cluster. This is further explained below.
What is a star cluster?Generally, Star clusters are simply defined as collections of millions of stars that offer astronomers critical information about inter-stellar development in relation to the earth.
In conclusion, An Open cluster identifies a type of star cluster is loose and disorganized.
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1. creep : erosion ::
a. walk : run
b. elm : tree
c. weathering : slump
d. pollution : ocean
Answer:
C.
Explanation:
Weathering refers to creep; and slump would refer to erosion.
Maybe, but I am not 100%
But if so, please mark brainlest!
The place in which an organism lives and hunts for food is its __________________.
1) The rate of evolutionary change may be slow and steady and is referred to as __________
2) _________ ___________ describes long periods of status bound by episodes of sudden change
3) The change in the genetic makeup of population due to chance is called _____
Answer:
1) gradualism
2) i have no idea
3) Evolution
Explanation:
Gradualism, Punctuated equilibrium and "genetic drift" are the respective answers.
What is Gradualism, Punctuated equilibrium and "genetic drift"?The rate of evolutionary change may be slow and steady and is referred to as "gradualism". This is the idea that evolution happens over long periods of time, with small changes accumulating gradually over generations.
"Punctuated equilibrium" describes long periods of stasis, where little evolutionary change occurs, punctuated by episodes of rapid and dramatic change. This theory suggests that evolution proceeds in sudden bursts of speciation, followed by long periods of stability.
The change in the genetic makeup of a population due to chance is called "genetic drift". This refers to the random fluctuations of allele frequencies in a population, which can occur in small populations or when there are chance events such as migration or a natural disaster that disproportionately affect certain individuals. Genetic drift can lead to the loss of genetic diversity and the fixation of certain alleles, and can have a significant impact on the evolution of a population over time.
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I
1. Areas in ecosystems that produce more carbon than they require are known as
a. carbon sink
b. carbon neutral
c. carbon source
d. carbon bank
Answer:
c. carbon source
Explanation:
A "carbon source" refers to processes that hastens carbon release into the atmosphere more than what they absorb. Example of this is the burning of nonrenewable resources like fossil fuels.
The combustion of fossil fuels increases the release of carbon dioxide. Carbon is then being trapped into the atmosphere. This contributes to "global warming."
This is opposite to "carbon sink," which absorbs most of the carbon than they emit.
Human germ cells in the testes and ovaries begin with 46 chromosomes (23 pairs). How many does
each sperm or egg cell end up with? (sperm and eggs are generated by meiosis)
(will mark brainiest!!!!)
Answer: 23 chromosomes each.
Explanation: meiosis is sometimes called ‘reduction division’. Both male (sperm) and female (egg) gametes are haploid, that is, with a single set of 23 chromosomes
