Answer:
Cytochrome c is known to play a role in the electron transport chain and cell apoptosis. However, a recent study has shown that it can also act as an antioxidative enzyme in the mitochondria; and it does so by removing superoxide (O2–) and hydrogen peroxide (H2O2) from mitochondria.Therefore, not only is cytochrome c required in the mitochondria for cell respiration, but it is also needed in the mitochondria to limit the production of O2– and H2O2.
Hope it helps,
Please mark me as the brainliest
Thank you
The human X and Y chromosomes
A. are of approximately equal size and number of genes.
B. include only genes that govern sex determination.
C. are both present in every somatic cell of males and females alike.
D. are almost entirely homologous, despite their different names.
E. include genes that determine an individual's sex.
What does natural selection act on?
Tom described a certain phase in mitosis as follows: The centromere splits. The paired chromosomes separate and shift to the opposite sides of the cell, which stretches the cell. Which of the following phases will take place just after the phase described by Tom?
Anaphase
Metaphase
Prophase
Telophase
!!!PLEASE HELP!!!
Answer:
I'm not 100% sure, but I think its the Telophase.
Explanation:
The third phase of mitosis is called anaphase. This is when the separation starts. The centromere of each chromosome splits. The spindle fibers shorten and pull the sister chromatids apart until they are on opposite ends of the cell. Each chromatid is now a single, unreplicated chromosome. As a result of this, the cell stretches out. The phase after this is telophase.
Answer:
Ik I'm late but Telophase
Explanation:
took the quiz and got it right
1. What is the Potential energy of an object that has a mass 10 kg and has a height of 50
(m)?
Answer:
24
Explanation:
Which of these is a response to an internal stimulus?
A. A sunflower turns to face the rising sun.
B. A cucumber tendril wraps around a wire.
C. A pine tree knocked sideways in a landslide grows upward in a bend.
D. Guard cells of a tomato plant leaf close when there is little water in the roots.
Answer:A a sunflower turns to face the rising sun.
Explanation:
An object with a kinetic energy of 200 J and Potential energy of 300 J, has a mechanical energy of what?
Answer:
500 J
Explanation:
Emechanical=U+K,i.e., the mechanical energy Emechanical is the sum of the potential energy U and kinetic energy K.
So, the object has a mechanical energy of 200+300=500 J.
A segment of DNA that codes for the ability to make one type of protein molecule is known as a
What do mitochondrial and thylakoid membranes have in common?
Answer:
Both membranes contain ATP Synthase Proteins.
Evaluate the neighbor's arguments in the following scenario. Are there facts he is overlooking?
An elderly neighbor says today's girls are less mature than they used to be. He says it used to be that by the time a girl had a mature body, she had
a mature brain to go along with it. The neighbor argues that it all comes down to bad parenting and too much television.
Answer:
He is trying to explain that girls in his day had more respect for their self than they do not
Explanation:
They copy what they see on tv, school,and friends
Answer:
First of all, every child develops and matures on their own pace (within a certain range) and we can't compare one person to another. Secondly, in general, girls are reaching puberty earlier than they used to, which may stem from nutritional or environmental influences. For example, in 1900, the average age of puberty for girls was fifteen; today, it is twelve and a half. Moreover, attaining puberty or having a mature body doesn't result in a mature or fully developed brain. The brain continues to develops on its own pace from the rest of the body, until into adulthood to the age of twenty-five.
Explanation:
use the food web below to answer the following question.
which organism is a tertiary consumer in this food web?
tree
hawk
frog
caterpillar
Answer:
The hawk is the most predatory animal that you have listed, the frog is most likely second, and the caterpillar is third. The tree only really consumes carbon dioxide.
Explanation:
I hope this helps!
Potato crops are grown for their carbohydrate content.
Describe how you could safely test the two species of potato to compare their carbohydrate content.
test for starch
test for reducing sugars
8 mark question - IGCSE
Answer:
I hope this helps a little bit.
What happened when two forces act in the same direction
Answer:
They repel one another. I think
Answer:
When two forces act in the same direction a few things can happen such as...
Explanation:
If the two forces are equal then there will be no movement but it the two forces are different, one being stronger the the strong one will over power the weaker one and the motion will move against it the weaker one causing it to move in the direction of the stronger, and of course there will be a bit of resistance.
Which statement BEST describes the measurements he would find in the jar, in the experiment group, B, compared with the concentrations of oxygen and carbon dioxide in the classroom air?
The provided question is incomplete as the important part and group of choices was missing, however, the correct question is given below:
In an experiment, Tony placed a potted plant under a bell jar, completely sealing the jar to the tabletop. After placing a box over the bell jar for 24 hours, he measured the concentrations of oxygen and carbon dioxide in the gas in the jar. Which statement best describes the measurements he would find in the jar, compared with the concentrations of oxygen and carbon dioxide in the classroom air?
Concentrations of both carbon dioxide and oxygen decreased.
Concentrations of both carbon dioxide and oxygen increased.
Carbon dioxide concentration increased; oxygen concentration decreased.
Oxygen concentration increased; carbon dioxide concentration decreased.
Answer:
The correct answer would be - Carbon dioxide concentration increased; oxygen concentration decreased.
Explanation:
There are two major processes respiration and photosynthesis that help in the production and utilizing the carbon dioxide and oxygen in plants. In order for your plant to grow photosynthesis is the process that converts carbon dioxide into glucose and oxygen. Photosynthesis only occurs in the daylight process so the use of carbon dioxide and producing oxygen is limited.
On the other hand, respiration is a continuous process that uses oxygen and glucose to produce carbon dioxide therefore the correct answer is Carbon dioxide concentration increased; oxygen concentration decreased
ASAP: Fill in the Genotype of each family member in
the blue boxes.
Earlobes are Autosomal Recessive.
Imagine customers moving into and out of a coffee shop. Which situation
resembles how a reaction in dynamic equilibrium acts?
A. There are the same number of people inside the coffee shop as
outside it.
B. People enter the coffee shop at the same rate as others leave.
C. No people are moving either into or out of the coffee shop.
D. Some people sit down and drink their coffee slowly, while others
drink theirs quickly while standing up.
No
Answer:
B. People enter the coffee shop at the same rate as others leave.
Explanation:
did the test !!
The answer is B. People enter the coffee shop at the same rate as others leave.
In a reaction in dynamic equilibrium, the forward and reverse reactions occur at the same rate, meaning that the concentrations of reactants and products remain constant over time.
Similarly, in the coffee shop scenario, if people are entering and leaving at the same rate, the number of customers inside the shop will remain constant, just like the concentrations of reactants and products in equilibrium.
Option A, C, D are not a good analogy for dynamic equilibrium.
Learn more about equilibrium at:
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In which structure of the neuron would you expect to find sites of dopamine
synthesis?
a. myelin
b. synapse
c. cell body
d. axon
Answer:
c cell body may be I'm not confirmed
HELP ASAP!! I NEED IT
Based on this graph, which of the following statements is incorrect?
FYI Online
1. The industrial revolution caused an increase in the rate of growth of the human population.
2. Significant events in human history can impact the growth of the human population.
3. The advent of modern medicine caused an increase in the rate of growth of the human population.
4. If the bubonic plague reemerged, only a small fraction of the human population would be affected.
Answer:its 4 i got it right on ow
Explanation:
Which type of blood vessel is most likely to clot and cause a stroke or a heart attack
Answer:
The middle cerebral artery is most often blocked during a stroke.
Explanation:
This test/quiz is accepting submissions until Thursday, March 11, 2021 at 8:00 pm
Questions 1-19 of 19 | Page 1 of 1
Question 1 (5 points)
(03.01 LC)
Which is an example of a divergent boundary?
a
Great Rift Valley
b
Himalayan Mountains
c
Peru-Chile Trench
d
San Andreas Fault
Question 2 (5 points)
(03.02 MC)
A soil sample is 35 percent sand, 10 percent clay, and 55 percent silt. Use the following soil texture triangle to determine the type of soil present in this sample.
Soil texture triangle. Silty loam soil is approximately 50 percent or less sand, 30 percent or less clay, and 50 percent or more silt. Sandy clay soil is approximately 45 to 65 percent sand, 35 to 55 percent clay, and 20 percent or less silt. Loamy sand soil is approximately 75 to 95 percent sand, 15 percent or less clay, and 25 percent or less silt. Medium loam soil is approximately 25 to 55 percent sand, 5 to 25 percent clay, and 25 to 50 percent silt.
Public Domain
a
Silty loam
b
Sandy clay
c
Loamy sand
d
Medium loam
Question 3 (5 points)
(03.03 LC)
Which gas is the least abundant in Earth's atmosphere?
a
Argon
b
Carbon dioxide
c
Helium
d
Neon
Question 4 (5 points)
(03.02 MC)
In which of the following scenarios does weathering occur but not erosion?
Lichens growing on boulders dissolve minerals in the rocks.
Sand carried downstream by a river gradually settles to the riverbed.
Wind blowing against a cliff face causes sediment to fall to the ground.
a
I only
b
II only
c
III only
d
I and II only
Question 5 (5 points)
(03.03 MC)
How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Southern Hemisphere?
a
It would deflect the path of the air mass to the east.
b
It would deflect the path of the air mass to the west.
c
It would deflect the path of the air mass to a lower altitude.
d
It would deflect the path of the air mass to a higher altitude.
Question 6 (5 points)
(03.02 MC)
A fast-growing town requires a new source of power. Because the town is located by a fast-flowing river, the town council votes to construct a hydroelectric power plant. How might this activity affect the local watershed?
a
The hydroelectric plant will likely flood the area behind the dam that is constructed.
b
The hydroelectric plant will likely pollute the water flowing down the waterfall.
c
The hydroelectric plant will likely pollute the air above the waterfall, leading to acid rain.
d
The hydroelectric plant will likely quit operating in the summer when the river dries up.
Question 7 (5 points)
(03.05 MC)
The state of California experiences periodic occurrences of severe drought conditions. Which weather phenomenon most likely causes this, and why?
a
El Niño, because of weakening of trade winds
b
El Niño, because of strengthening of trade winds
c
La Niña, because of increased upwelling of cooler waters
d
La Niña, because of decreased upwelling of cooler waters
Question 8 (10 points)
(03.05 HC)
The map below shows winter storm advisories in different parts of the U.S. (indicated in light purple and bright pink). There is a flood watch (indicated in green) due to severe thunderstorms and heavy rainfall:
The map of the United States is shown. The light purple and bright pink colors in the map indicate a winter storm advisory along the Appalachian Mountains, extending north. The same two colors appear above the Rocky Mountain Range near West Virginia, Utah, and Wyoming. The dark green color is a flood watch south of the Appalachian Mountains.
© National Weather Service 2020
Refer to the map to answer the following questions:
Identify the location(s) of upcoming winter storms in the continental U.S.
Identify the location(s) of upcoming heavy rains or flood in the continental U.S.
Earth's geography, climate, and weather:
Describe the general climate of the identified locations.
Explain how the geography of the identified locations affects precipitation in their region.
In mountainous regions, there are increases in global temperatures that affects that region's climate. Propose a solution for communities in these regions to be able to tolerate their unique climate.
Your answer:
Question 9 (5 points)
(03.05 LC)
Warm ocean water is carried eastward by wind towards South America to cause changes in global climate. Which of these events is described by the statement?
a
El Niño
b
La Niña
c
Land breeze
d
Sea breeze
Answer:
The mid-Atlantic ridge is an example of a divergent boundary, where the Eurasian Plate that covers all of Europe separates from the North American Plate. This underwater mountain range is constantly growing as new crust is formed. Further up that same boundary, it passes through Iceland.08-Dec-2015
A person suffering from anemia feels tired in short walk, Why?
Answer:
When you have anemia, your body doesn't produce enough red blood cells. You don't get enough oxygen, which makes you feel fatigued and can also cause serious health complications.
Explanation:
If the allele for an attached earlobe (e) is recessive to the allele for an unattached earlobe (E), what will be the relative frequency of e in a population?
a. It could be more or less frequent than T.
b. It could only be equally as frequent as T.
c. It could only be more frequent that E.
d. It could only be less frequent than T.
Answer:
It could be more or less frequent than T.
Explanation:
As demonstrated by the Hardy-Weinberg principle, the dominance or recessiveness of an allele does not determine its frequency in a population.
In the given scenario, the relative frequency of e in a population will be It could be more or less frequent than T. The correct option is a.
What is allele?An allele is one of two or more DNA sequence versions at a given genomic location. For any given genomic location where such variation exists, an individual inherits two alleles, one from each parent.
The Hardy-Weinberg principle demonstrates that an allele's dominance or recessiveness does not determine its frequency in a population.
Thus, the correct option is a.
For more details regarding alleles, visit:
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How many MYA was the mass extinction of dinosaurs, ammonoids, and many land plants?
18. What is precipitation that falls on land and flows over the surface of
the ground?
helppppp meeeeee plsssss
Answer:
Solar eclipse
Explanation:
Solar eclipse happens when the moon is covering up the sun. As the picture is showing, the moon is covering up the sun and casting a shadow onto the earth.
What are some examples of natural hazards that can occur quickly with little or no warning?
Answer:
landslides
Explanation:
Thunder storm
Wildfire
Eruption
Which statement describes natural selection
Answer: You didn't put any statements lol
Explanation:
But basically natural selection is when organisms with the most favorable traits will survive and reproduce. (ex. there are 2 strains of bacteria - one that resists antibiotics and one that doesn't. The one that resists the antibiotics will strive and reproduce because that will be the more favorable trait that will be able to be inherited by future generations.)
In humans, the "A" allele codes for Type A blood, the "B" allele codes for Type B blood, and the "o" allele codes for Type O blood. "A" and "B" are both dominant to "o." A and B are codominant to each other.
What is the genotypic ratio of a cross between a mother who is heterozygous Type A and a father who is heterozygous Type B?
A. 1 AB : 1 A0:1 Bo : 1oo
B. All AB
C. 2 AA: 2 BB
D. 1 Ao: 2 00:1 Bo
Which of the following organelles exist in animal cells? Select all that apply.
O Mitochondria
O Cell wall
O Chloroplast
O Vacuoles
Nucleus
Answer:
mitochondria
cell wall
Hi I need help and I’ll give brainliest for correct answers
Answer:
Hmm I know the answer for the bottom one, If a plant has too much amount of water, the roots will rot slowly, if there's not enough water for the plant, there won't be any nutrients for the plant to grow :3
Explanation:
:3