Answer:
c
Explanation:
The statements is true about autotrophs, but not heterotrophs is that they use sunlight, water, and carbon dioxide to make sugars. Thus, option C is correct.
What plants use to make food?The plants use sunlight, water, and carbon dioxide to make sugars as well as food. Organisms can be divided into autotrophs and heterotrophs according to their pathway of producing food and energy. Heterotrophs are that organism which depend on another organism for their food and energy. They get their energy from carbohydrate, protein, and fat.
Those organisms that are able to make and produce energy from energy-containing organic molecules such as glucose from inorganic raw material such as water and by using light energy such as sunlight are autotrophs. Plants are the prime autotrophs, they produce their food and energy which is sugar from water, sunlight and carbon dioxide using photosynthesis.
Therefore, The statements is true about autotrophs, but not heterotrophs is that they use sunlight, water, and carbon dioxide to make sugars. Thus, option C is correct.
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what best describes a tetrad
Answer:
The tetrad is the four spores produced after meiosis of a yeast or other Ascomycota, Chlamydomonas or other alga, or a plant.
In a desert ecosystem, coyotes and rattlesnakes both eat the same type of mouse as a primary part of their diets. Recently, coyotes have been hunted and killed by people, decreasing the overall coyote population. How will this most likely affect the rattlesnake population over time?
Answer:
Answer: It will increase because coyotes are the competition.
Explanation:
An ecological niche can be defined as the functional role which an organism performs in the ecosystem in order to sustain it's life. The functional roles include how an organism obtains it's food, type of food eaten by the organism, type of habitat chosen by the organism and type of breeding season used by the organism.
In the given situation, both coyotes and rattlesnakes are dependent upon the same ecological niche that is they are dependent upon mouse as a primary part of their diets. As, both coyotes and rattlesnakes are dependent upon the same diet there may exist the competition between the two species. But it is mentioned that the coyote population is decreasing therefore the population of rattlesnake will most likely increase as the competition for the same diet decreased.
Answer:
D
Explanation:
Some bacteria make people sick because they produce poisons called
a. toxins
b. antibiotics
c. infections
d. enzymes
toxins
hihihihihihihihihihihihihi hi
Answer:toxins
Explanation:
Hope this helps!
Your heart is an example of a(n) __________.
tissue
organ
cell
organ system
Answer:
Organ
Explanation:
The organ system is a group of organs. A cell is the basic unit of life. Tissue is what’s between cells and organs.
Your heart is an example of a(n) organ. A group of cell form a tissue, A group of tissue combine to form a organ.
Thus, Your cardiovascular system, which consists of a network of blood vessels that pumps blood throughout your body, is mostly composed of your heart.
It also interacts with other bodily systems to regulate your blood pressure and heart rate. Your lifestyle, family history, and medical history are all factors that determine how well your heart functions.
A fist-sized organ, the heart circulates blood throughout your body. It serves as your circulatory system's main organ. Four major muscle-driven chambers make up your heart; they are each powered by electrical impulses. Your nerve system and brain control how your heart beats.
Thus, Your heart is an example of a(n) organ. A group of cell form a tissue, A group of tissue combine to form a organ.
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The diagram represents a food web in a marine ecosystem which statement best describes the role of two populations within this food web?
A: Phytoplankton and cod are both producers.
B: phytoplankton and zooplankton are both producers.
C: zooplankton are producers, and phytoplankton are consumers.
D: phytoplankton are producers, and cod are consumers.
Answer:
i think it's b
Answer: D.) phytoplankton are producers, and cod are consumers.
Explanation:
A.) is wrong because cod are consumers, not producers
B.) is wrong because zooplankton are consumers too
C.) phytoplankton are producers, and zooplankton are consumers instead.
Hoped I helped a bit! :)
A 30 kg object has 3 forces acting on it - one 40 N force to the right, one 20 N force to the right, and one 30 N force to the left. What is the acceleration of the object?
A. 1.0 m/s2 to the right
B. 0 m/s2
C. 1.6 m/s2 to the right
D. 3 m/s2 to the left
Answer:
Thats not biology , that's physics . Net force = F1+F2-F3=40+20-30=60-30=30
F=ma.
30=30a
a=30/30
a=1m/s^2
Please help! if you don't know the answer just don't answer or you will get reported.
1. Describe one observation that supports the theory that mitochondria and chloroplasts originated as independent prokaryotic organisms
2.Explain how a symbiotic relationship like the one described in the endosymbiotic theory would have benefited each cell.
Answer: hope the below answers will help
Explanation:
1 and 2 in this paragraph
SKILLS TO DEVELOP
Briefly describe what is meant by the endosymbiotic theory.
Give some evidence supporting the theory that mitochondria and chloroplasts may have arisen from prokaryotic organisms.
It is thought that life arose on earth around four billion years ago. The endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once prokaryotic microbes. In this theory, the first eukaryotic cell was probably an amoeba-like cell that got nutrients by phagocytosis and contained a nucleus that formed when a piece of the cytoplasmic membrane pinched off around the chromosomes. Some of these amoeba-like organisms ingested prokaryotic cells that then survived within the organism and developed a symbiotic relationship. Mitochondria formed when bacteria capable of aerobic respiration were ingested; chloroplasts formed when photosynthetic bacteria were ingested. They eventually lost their cell wall and much of their DNA because they were not of benefit within the host cell. Mitochondria and chloroplasts cannot grow outside their host cell.
Evidence for this is based on the following:
Chloroplasts are the same size as prokaryotic cells, divide by binary fission, and, like bacteria, have Fts proteins at their division plane. The mitochondria are the same size as prokaryotic cells, divide by binary fission, and the mitochondria of some protists have Fts homologs at their division plane.
Mitochondria and chloroplasts have their own DNA that is circular, not linear.
Mitochondria and chloroplasts have their own ribosomes that have 30S and 50S subunits, not 40S and 60S.
Several more primitive eukaryotic microbes, such as Giardia and Trichomonas have a nuclear membrane but no mitochondria.
Although evidence is less convincing, it is also possible that flagella and cilia may have come from spirochetes.
Figure 7.8.1 : One model for the origin of mitochondria and plastids. This model has an amitochondriate eukaryote engulfing an aerobe and then a cyanobacterium. Image used with permission from Kelvinsong
EXAMPLE 7.8.1
Briefly describe what is meant by the endosymbiotic theory.
Give three points of evidence supporting the theory that mitochondria and chloroplasts may have arisen from prokaryotic organisms.
Solutions
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.
Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission.
Mitochondria and chloroplasts have their own DNA which is circular, not linear.
Mitochondria and chloroplasts have their own ribosomes which have 30S and 50S subunits, not 40S and 60S.
Summary
The endosymbiotic theory states that mitochondria and chlopoplasts in today's eukaryotic cells were once separate prokaryotic microbes.
Contributors
Dr. Gary Kaiser (COMMUNITY COLLEGE OF BALTIMORE COUNTY, CATONSVILLE CAMPUS)
WHERE ARE THE GENIUS?!?!?!?!! WILL GIVE BRAINLIEST!!LAST TRY!!!!SHARE YO SMARTNESS WITH THE DUMB (ME) LAST CHANCE!!
4.The crabs that live in the aquatic biome pictured depend on living in shallow water that has a temperature no greater than 60 degrees F. If climate change causes an increase of that water’s temperature to 62 degrees F, what will likely happen to the dolphins in that biome, and why?
Answer:
The dolphins population may diminish a little.
Explanation:
Crabs are one of the many things dolphins eat, and, as the prompt suggest, they cannot live in temperature greater than 60 degrees F. If climate change makes the temperature 62 degrees F, the crab population will all die. However, note that dolphins do not only eat crabs, as they have other food sources. However, crabs are a major population, so we can see a disruption in the food web, with there being less dolphins than usual.
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1) What is biodiversity?
Why is bacteria and archaea not in the same kingdom
The images above all illustrate the presence of a vestigial structure. What is this structure and why is it no longer used for its original function? A) Sacral vertebrae have disappeared in modern man. They are no longer needed as man stood more and more upright. B) Lumbar vertebrae. As man became bipedal, the vertebrate became shorter and wider. These particular vertebrate disappeared. C) Coccyx or tailbone is the remnant of a lost tail. The tail was used for gripping as well as an aid in balance and mobility. D) Iliac blade. This part of the pelvis was shortened and widened as a requirement for keeping the center of gravity stable while walking.
Answer:
C, the Coccyx
Explanation:
One of the first uses of biotechnology was selective breeding of plants and animals to improve agriculture and domesticate animals.
True
or
False
Answer:
true
Explanation:
because to domesticate animals we just picked the ones we wanted
I just want to eat chicken legs should I its kinda far?
Answer:
yes
Explanation:
do what you love!!!!!!!!!!!!!
Answer:
do it
Explanation:
were all bored
How does the shape of this seed help it to be transported
Answer:
The hook spurs allow it to be carried my fur because the hooked spurs can connect to the fur and be dropped at a new place, were a new generation of plants can grow! :D your welcome!
Explanation:
What can farmers use to prevent the harming of beneficial insects?
a.
spray insecticides
c.
new pesticides
b.
natural pest control
d.
non-aerosol insecticides
Answer:
Natural pest control
Explanation:
Because its a way to be eco friendly using natural sources which does not harm insects
B and T cells of the immune system have unique B and T cell surface receptors (respectively) as shown above. What is the function of the variable and the constant regions of the B and T cell receptors of the vertebrate immune system? A) There will be an increase in inflammatory response during an innate immune response. B) There will be a decrease in allergic responses on the part of the individual to allergens in the environment. C) There will be an increase in variety of the shape of the B and T cell receptors, allowing them to recognize and destroy more pathogens. D) There will be a decrease in pathogens that can enter the body, resulting in a decrease of antibodies present and circulating in the blood.
Answer:C. There will be an increase in variety of the shape of the B and T cell receptors allowing them to recognize and destroy more pathogens
Explanation: usa test prep
Answer:C
Explanation: Because I did the USA test prep
Question 1 (1 point)
Which diagram best shows the flow of energy through a community with three trophic levels? (Sorry, B and D are cut off, but the image is "mirrored").
A) a
B) b
C) c
D) d
20 Points Easy
True or False
Write true if the statement is true or false if the statement is false.
_______ 14. Precipitates are the solid materials left behind after a liquid evaporates.
_______ 15. As magma cools, different crystals form in the process known as metamorphism.
_______ 16. When a rock melts completely it can become the metamorphic rock migmatite.
_______ 17. The rock cycle describes the transformation of one type of rock to another.
_______ 18. When sediments become sedimentary rock they often have changes in composition.
_______ 19. The White House is made of pink sandstone that was painted white.
_______ 20. Fossils are the remains of once-living organisms.
Answer:
True 14. Precipitates are the solid materials left behind after a liquid evaporates.
True 15. As magma cools, different crystals form in the process known as metamorphism.
False 16. When a rock melts completely it can become the metamorphic rock migmatite.
True 17. The rock cycle describes the transformation of one type of rock to another.
False 18. When sediments become sedimentary rock they often have changes in composition.
True 19. The White House is made of pink sandstone that was painted white.
True 20. Fossils are the remains of once-living organisms.
Pea plant cross: PpYy x PpYy
How many possible allele combinations can each parent produce?
What are they?
How does nitrogen get into the air
Which is the correct answer?.
Answer:
d. 232 km/h
Explanation:
speed = distance/ time
speed = 290/1.25
speed = 232 km/h
Answer:
d
Explanation:
Which functions are aided by swimmerets in crustaceans? Check all that apply. attachment to host gas exchange prey capture reproduction swimming
Answer:
b,d,e
Explanation:
I took the assignment.
The functions that are aided by swimmerets in crustaceans are gas exchange, reproduction, and swimming.
What do you mean by Crustaceans?Crustaceans may be defined as any of a large group of mostly water animals, that have tough outer shells, two pairs of antennae, and limbs that are jointed.
Crustaceans are organisms that belong to aquatic habitats where play performs their functional role and increase their survival rate effectively.
Therefore, the functions that are aided by swimmerets in crustaceans are gas exchange, reproduction, and swimming.
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A skeleton is found with smooth brow ridges, sub pubic angle of 101
degrees, a small mastoid process, and narrow hip bones. Is the skeleton a
biological male or female? Justify your answer with an explanation on
how you came to your conclusion. *
Your answer
Answer:
This is a woman's skeleton.
Explanation:
Although the skeleton shown in the question above has narrow bones in the hips and women, in general, have wider bones in the hips than men, we can say that the skeleton mentioned above belongs to a biological woman. This is because we know that this skeleton has a 101 degree subpubic angle, however, the subpubic angle in male pelves varies from 70 to 75 degrees.
1. In rabbits, white fur color (W) is dominant to black, and long ears (L) are dominant to
short. Draw a Punnett square that represents the cross between two rabbits heterozygous
for both traits. What is the probability of a white rabbit with short ears?
Answer:
below(sorry that the picture isn't that good)
Explanation:
white/short=4/16=25%
genotype-
1:2:2:3:1:2:2:2:1
phenotype-
8:3:4:1
Name a product that is from the Amazon rainforest and how it benefits the rainforest
Answer:
let's say example cocoa beans
Explanation:
cocoa beans are from Amazon forest and they help in making coffee
Answer:
Brazil nut
Explanation:
Next time you lather on your moisturiser take a look at the ingredients. Lots of Amazonian plants – like Brazil nut and coconut oil – work wonders on your skin!
Homeostasis can require the control of many different variables in organisms. Homeostasis regarding internal body temperature is very important for many organisms. How is this different among ectotherms and endotherms?
Answer:
The term homeostasis refers to balance, where an organism seeks to maintain the balance of the temperature of its organism in order to persist in life.
There are organisms that are considered ectotherms, with which they release heat to the external environment in order to balance said increase in temperature and not denature their own proteins (such as enzymes, structural proteins, receptors, second messengers, etc.). On the other hand, in the case of endotherms, take energy from the medium to increase your body temperature and maintain it, since otherwise you could enter hypothermia.
In the human organism these principles occur both, not simultaneously, but according to the external temperature in which the human is, ectothermic / catabolic processes in heat stages and endothermic or anabolic processes in the cold stage.
Explanation:
In simple words, endotherm is the heat taken from the medium and exotherm or ectotherm is the release of heat to the medium.
This is so simple in objects, but in living organisms these processes have a reason, and that is why we explained above, when looking for a constant temperature these processes are responsible for mediating balance.
With only two foods available, natural selection has favored Flock which has grown the most in the
first three generations. Meanwhile, Flock Mhas declined the most because its beak was the least
successful phenotype for the food available.
( it’s Y and X)
Answer:
IT'S Y AND X
Explanation:
The question says so at the end :)
Flock X declines the most while natural selection has favored Flock Y the most. Hence, X and Y are correct.
What is natural selection?The process through which organisms adapt and change according to their surrounding is called natural selection. This theory was given by Charles Darwin. Individuals in a habitat are naturally different from each other. Some individuals have better traits to survive.
According to this theory, only those organisms will survive, which can change as their environment change, and can adapt. For example, the evolution of the long neck of giraffes to feed on leaves.
Flock Y has a strong beak for feeding due to which their chances of survival are maximum. While Flock X have a weak beak for feeding due to which their chances of survival are minimal. Therefore, X and Y are correct.
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How does temperature play an important role in biomes ?
Answer:
Temperature plays an extreme role of what activities and inhabitants are in such biome. For example, a polar bear would do well in a Tundra Biome, but not a Hot Desert Biome, since the polar bear is conditioned for the cold and its main source of energy are seals which inhabits cold seas!
Explanation:
What significant negative effect on the environment cause by obtaining water from a well?
Answer:
Some of these water-borne diseases are Typhoid, Cholera, Paratyphoid Fever, Dysentery, Jaundice, Amoebiasis and Malaria. Chemicals in the water also have negative effects on our health. Pesticides – can damage the nervous system and cause cancer because of the carbonates and organophosphates that they contain.
Explanation:
All water is a good part of the environment. ... If you mean can individuals keep getting water forever from their personal well and it has no effect on anyone else - no. It is not good in that respect. Wells are part of the local groundwater system and the water is usually not limited to one person's land.
Describe how C. parvum obtains the glucose it needs for glycolysis after it has infected another cell. Explain the role of lactate dehydrogenase in enabling C. parvum to continue producing ATP by glycolysis.
Answer:
Cryptosporidium parvum is an apicomplexan pathogen that obtains glucose either directly from its host or by the degradation of polysaccharides.
Explanation:
C. parvum only can produce ATP by glycolysis. Lactate dehydrogenase (LDH) is a universal enzyme required to synthesize pyruvate, which is the final product of the glycolysis process. This enzyme has been subject of research to understand the metabolism and evolution of apicomplexan parasites, including C. parvum.
Cryptosporidium parvum is a pathogenic agent that causes the disease cryptosporidiosis. The pathogen obtains glucose directly from the host. It can also obtain by the breakdown of polysaccharides.
C. parvum produces ATP through glycolysis. The enzyme lactate dehydrogenase is used by the C. parvum to generate metabolic ATP. It generates this ATP through the glycolytic pathway. The enzyme allows the conversion of NADH to NAD+. NAD+ is necessary for glycolysis to produce ATP. Metabolic energy plays a crucial role in the growth and proliferation of the pathogen in the host.
Some of the features of C. parvum are:
It consists of a unique lactate dehydrogenase enzyme to yield ATP. It causes the disease in the gastrointestinal tracts. The pathogen is used for research and understand its ability to obtain ATP directly from the host.Therefore, C. parvum consists of enzyme lactate dehydrogenase that helps in energy production through the glycolytic pathway.
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