Summary
Food is chemical energy stored in organic molecules.
Food provides both the energy to do life's work and the carbon to build life's bodies.
• Autotrophs make their own carbohydrate foods, transforming sunlight in photosynthesis
or transferring chemical energy from inorganic molecules in chemosynthesis.
Heterotrophs consume organic molecules originally made by autotrophs.
All life depends absolutely upon autotrophs to make food molecules.
Questions:
Use the text above to answer the following questions.
1. Water and carbon dioxide mdlecules are reactants in the process of photosynthesis. Does
this mean they are "food" for plants, algae, and blue-green bacteria? Use the definition of "food
to answer this question.
2. Compare autotrophs to heterotrophs, and describe the relationship between these two grou
3. Name and describe two types of food making found among autotrophs, and give an example of each. which is quantitatively more important to life on earth (Which are there more of)
Answers
Related Questions
What did scientists believe was contributing to the depletion of the ozone layer and why?
Answers
CFCs and other halogen-source chemicals in the stratosphere were discovered to deplete the ozone layer.
What is ozone layer depletion?
Ozone depletion is the steady lowering of the Earth's ozone layer in the high atmosphere, which is produced by the discharge of chemical compounds from industry and other human activities that contain gaseous chlorine or bromine.
The ozone layer acts as a buffer against the sun's potentially dangerous ultraviolet rays. The destruction of the ozone layer puts humans in direct contact with dangerous ultraviolet rays, which can lead to a variety of health problems including cancer, cataracts, skin illnesses, and a weakened immune system.
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Molecules can cross cell membranes from areas of low concentration to areas of high concentration b binding with carrier proteins. What is this process called? A. osmosis B. endocytosis C. active transport D. facilitated diffusion
Answers
Answer: Osmosis.
Osmosis is the movement of liquid across a membrane from an area of low solute concentration to an area of high solute concentration.
Answer:
Explanation:
A
Genetics Problem Solving Chapter 25
Answers
Answer:
See the answer below
Explanation:
1. Tt x Tt
TT Tt Tt tt
Assuming that T is dominant over t:
Genotype ratio = 1TT:2Tt:1tt
Phenotype ratio = 3:1
2. Rr x Rr
RR Rr Rr rr
Assuming that R is dominant over r:
Genotype ratio = 1RR:2Rr:1rr
Phenotype ratio = 3:1
3. Assuming that green (G) is dominant over the other color (g). Heterozygous green would be Gg
Gg x Gg
GG Gg Gg gg
Genotype ratio = 1GG:2Gg:1gg
Phenotype ratio = 3:1 (green ratio the other color)
4. Assuming that green (G) is dominant over the other color (g) as above:
homzygous green plant = GG; heterozygous green plant - Gg
GG x Gg
GG Gg GG Gg
Genotype ratio = 1GG:1Gg
Phenotype ratio = 100% green
5. Assuming that tall (T) is dominant over short (t)
Homzygous tall plant = TT
short plant = tt
TT x tt
Tt Tt Tt Tt
Genotype ratio = 100% Tt
Phenotype ratio = 100% tall
Which of these is an abiotic infectious agent?
● Bacteria
●Fungi
● Parasites
● Viruses
Answers
Answer:
A. Bacteria
Explanation:
Hope this helps!
What do variations of traits have to do with mutations? give an example
Answers
Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.
2. The structural and functional unit of life is (a) a cell, (b) an organ, (c) the organism, (d) a
molecule.
Answers
Answer:
A. A cell
Explanation:
Cells are the building blocks of life.
They are the biological units of organisms and are the basic structural and functional units of life.
Cells are the smallest units of life.
Which best describes independent assortment?
In metaphase 1, chromosomes from the mother and father line up on opposite sides of the cell.
In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.
Portions of each chromosome switch sections in the mother’s and father’s chromosomes.
Portions of each chromosome break off and reattach to the original chromosome.
Answers
Answer:
In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.
Explanation:
In diploid (2n) organisms, the homologous chromosomes are the two copies of each chromosome, where one of these homologs is the chromosome from the mother, while the second one is from the father. During metaphase I, the homologous pairs of chromosomes pair together at the middle of the cell. The law of independent assortment, also known as or Mendel's Second Law, states that homologous chromosomes line up in random orientations at the metaphase plate during this period (metaphase I).
Answer:
B
Explanation:
which of the following changes depending on changes to gravitational forces
a. velocity
b. mass
c. shape
d.weight
Answers
b. mass
Which line of defense includes active immunity?
O first
O second
O third
O fourth
Answers
Answer:
The second line of defense.
Explanation:
In our bodies the second line of defense includes active immunity. It contains non-specific immune responses, but yet still contains specific responses for certain things such as inflammatory and fevers.
Third line of defense includes active immunity. The correct option is C.
What are lines of defense?The first line of defense consists of chemical and physical barriers that are constantly ready to defend the body against infection.
Your skin, tears, sputum, cilia, stomach acid, urine flow, 'friendly' bacteria, and white blood cells called neutrophils are examples of these.
The second line of defense assists administration in effectively managing risk and controls.
Organization develops multiple risk management and compliance functions to assist in the development and/or monitoring of first-line controls.
Immune cells that specifically target antigens are the third line of defense. B-cells and T-cells, all white blood cells, are immune cells that play a role in the third defense line.
Antibodies are produced by B-cells. T-cells aid in the identification of pathogenic cells and the destruction of those cells.
Thus, the correct option is C.
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Answer this please. Its gizmos
Answers
A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh-positive is a trait that shows simple dominance over Rh-negative. Which of the following is a possible phenotype for the father?
A) A negative
B) O negative
C) B positive
D) AB negative
Answers
Answer:
The correct answer is - C) B positive
Explanation:
In the given question is the man has B positive blood group with two offspring a girl with type O positive and a son who is type B negative. In ABO blood group A and B if present together they express in offspring if present together.
Here the difference in the Rh factor only as the blood group O has no antigen on its surface therefore the most possible phenotype for the father as he has son with B negative and a daughter with O positive.
What is your opinion on the use of stem cells, obtained from fertilized eggs or early stage embryos
Answers
USE OF STEM CELL:
The first attempts to turn mature cells back into pluripotent stem cells involved a process called cloning. In the cloning process, an egg is fertilized in the lab, and right after fertilization, the DNA is removed from the egg.These stem cells come from embryos that are three to five days old. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.Despite the potential benefit of using human ES cells in the treatment of disease, their use remains controversial because of their derivation from early embryos.Learn more:
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You need a dog to work with the police.What traits would you want the dog to have? Why?
Answers
Complete the statement to describe the calcium concentration that must be maintained in human body cells.
The calcium concentration must be greater _______
the cell than _______ the cell.
Answers
Answer:
The calcium concentration must be greater OUTSIDE
the cell than INSIDE the cell.
Explanation:
Calcium has a vital role in the body, it is necessary for:
exocytosis muscle contraction normal excitability of neurons blood coagulation building and maintaining bones and teeth enzymatic activityAnswer:
outside and inside
Explanation:
Complete the statement to describe the calcium concentration that must be maintained in human body cells.
The calcium concentration must be greater
outside
the cell than
inside
the cell.
How have protozoa typically been classified?
by their type of reproduction
by their symmetry
by their mode of locomotion
by their mode of nutrition
Answers
Answer:
by their mode of locomotion
Explanation:
I'm not too sure but.. :)
Find the stoma. Explain the gas exchange process that is taking place.
please help :(
Answers
The process of changing the hard parts of an animal or plant carcass with minerals?
Answers
Answer:
Perminerlization should be the answer
A tall plant (TT) is crossed with a short plant (tt). What is the genotype?
Use a punnett square to solve.
OTT: 2/4; Tt: 2/4;tt: 0/4
TT: 2/4; Tt: 1/4;tt: 1/4
TT: 0/4; Tt: 4/4;tt: 0/4
TT: 1/4; Tt: 2/4;tt: 1/4
Answers
Answer: TT: 1/4; Tt: 2/4;tt: 1/4
Explanation:
The Punnett square is a diagram that is used in the predictions of genotypes. In this scenario, if we have a tall plant (TT) is crossed with a short plant (tt), after using the Punnett square, the genotype that we will get are as follows:.
TT, Tt, Tt, tt
Therefore, the correct option is option D "TT: 1/4; Tt: 2/4;tt: 1/4
Answer: TT: 1/4; Tt: 2/4;tt: 1/4
Explanation:
4 points
Objects revolving around the Sun that are too small and too numerous to
be considered planets. *
Answers
Answer:
Asteroids are rocky worlds revolving around the sun that are too small to be called planets. They are also known as planetoids or minor planets. There are millions of asteroids, ranging in size from hundreds of miles to several feet across.
You have been given three plants: Two have solid black flowers, and one has grey flowers. You cross each black-flowered plant to the grey plant with the following results:
Parents: black #1 X grey F1: 87 solid black, 83 spotted black
Parents: black #2 X grey F1: all black
To try and make sense of these results, you intercross the solid black-flowered F1 plants from cross #2 with the following results in the F2:
132 black
35 spotted black
11 grey
What are the genotypes of the parents, F1 and F2 generations?
Answers
Answer:
The correct answer would be -
F1: #1 black flower plant = Aabb and aabb and #2 = AABB and aabb
F2 = AaBb and AaBb
Explanation:
In this cross, it is the case of the dominant epistasis type of inheritance pattern as Gene A masks the expression of gene B but expresses itself only in presence of b or B.
The ratio of the dihybrid cross change in such inheritance from 9: 3: 3: 1 ratio changes to 12: 3: 1.
Check for the images for cross:
chemical used in afb staining
Answers
Answer:
carbol fuchsin, acid alcohol, and methylene blue.
.............
A feature of an organism
1.gene
2.mutations
3.cell
4.chromosome
5.Trait
Answers
Answer:
(Not gene)
Explanation:
I was taking a quiz and tried #1 (gene) and it said i was wrong
Which two elements are characteristics of autobiographies?
Autobiographies include fictional accounts of a series of events.
Autobiographies are written in the first-person point of view.
Autobiographies are told by an outside observer.
Autobiographies rely on research to tell the story.
Autobiographies share an author’s personal thoughts.
Answers
Answer:
It is b and e
Explanation:
Autobiographies are written in the first-person point of view.
Autobiographies share an author’s personal thoughts.
Answer:
The answer is B. Autobiographies are written in the first-person point of view. And E. Autobiographies share an author’s personal thoughts.
1. It is a means of perpetuating the race of the species whose life span is finite.
A. Reproduction
C. Oogenesis
B. Fertilization
D. Spermatogenesis
2. It is a method of reproduction that does not invove the union of gametes.
A. Sexual Reproduction
C. Sporulation
B. Propagation
D. Asexual Reproduction
3. What do we call the process that is widely used to propagate desired varieties of trees and shrubs.
A. Grafting
C. Layering
B. Budding
D. Sporulation
4. It involves the breaking of any part of the body or the breaking up of the entire body into several
pieces.
A. Regeneration
C. Fragmentation
B. Propagation
D. Autotomy
Answers
Answer:
i have no clue
Explanation:
yes
During the New Imperialism nations expanded their empires to
Answers
Answer: To compete with one another
Explanation: pennfoster
what are the building blocks for this molecule
Answers
Answer:
All molecules are made up of tiny atoms. This happens because of the formation of bonds between the atoms, which holds them together to make a molecule.
if it works please mark me as brainliest
do you guys know any good songs or good ways to remember all the bones in the body and where they are???? i have a test tomorrow for this and i cant remember any of it
Answers
Answer:
The human bones song by jam campus or how to learn the human bones video
Explanation:
When plants die this causes what to increase?
Answers
Answer:
Explanation:
Improper watering is often the reason for sudden dying of plants. If you forgot to water for a few days, it's possible that the roots dried up. ... Root rot, a result of wet, poorly drained soil, can be occurring under the surface of the soil, even if the plant looks healthy.
What does permafrost do the the soil? (The soil in the tundra)
Answers
Answer: It makes the soil frozen and hard
Explanation: the permafrost frezzes the soil and doesnt allow any plant life to grow
A.mito
B.chrom
C.clust
D.nucl
Plz help