Answer:
The temperature is the Independent Variable
Explanation:
the system that maintains the human species from generation to generation is the
The system that maintains the human species from generation to generation is the REPRODUCTIVE system. This system is responsible for producing male and female gametes.
The reproductive system is an organ system by which humans produce male (sperm) and female (ovule) gametic cells.
Male and female gametes fuse during fertilization to produce a diploid zygote that develops into an adult individual.
In women, the reproductive system is composed of the ovaries, uterus, fallopian tubes, cervix, and vagina.
In men, the reproductive system includes the testes, prostate, and penis.
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Colony collapse disorder is a natural phenomenon in which the majority of worker honeybees—bees that collect food for the hive—die at the same time. If several hives in a region experience this phenomenon, how could it affect the life cycle of flowering plants in the region?
Answer:
A decrease in honeybees can lead to fewer bees pollinating flowers, which could decrease the chances of flowering plants producing offspring.
Explanation:
Edmentum
what name is given to the process in which pre-mrna is edited into mrna?
What is the difference between guttation and dew
Answer:
Dew is atmospheric moisture condensing on colder surfaces, and is pure water. Guttation is moisture secreted from within the plant itself, and contains xylem sap. Guttation allows for secretion through the edges of the plant.
5. Juan’s cell phone company charges $35 a month for the phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?
Answer:
34
Explanation:
Total Cost = Fixed Charge + 0.50 * number of text messages
Total Cost = 52 dollars.
text Messages = x
Fixed charge = 35 dollars.
Equation
Total Cost = Fixed Charge + number of text message * 0.50
Solution
52 = 35 + 0.50 * x Subtract 35 from both sides
52 - 35 = 35-35 + 0.50x Combine
17 = 0.50x Divide by 0.50
17/0,50 = 0.50*x/0.50
x = 34 text messages
what three elements are found in chlorofluorocarbons
Answer:
Carbon, chlorine, and fluorine.
Explanation:
True Or False?
Organic materials are the remains of once-living organisms
Explanation:
trueeeeeeeeeeeeeeeeeeeeee
QUESTION: What are the building blocks of all organisms?
ANSWER:
Answer:
Cells
Explanation:
Answer:
Cells
Explanation:
Organisms are created by different types of tissues. These are composed of cells. Animals are made of animal cells which are round, and plants are made of plant cells which are rectangular and have cell walls.
explain how eating a burger is the result of photosynthesis
Answer:
The bread, lettuce, tomatoes, and onions in the hamburger all came from plants. The food molecules in those plants were made as a result of the process of photosynthesis, using the energy in the sunlight. The hamburger meat came from a cow, which ate grass and other plants to obtain food.
compare and contrast:
bacteria and protists
protists and fungi
bacteria and fungi
Answer:
Bacteria are single-celled microbes
Explanation:
The primary difference between them is their cellular organization. Bacteria are single-celled microbes and are prokaryotes, which means they're single-celled organisms lacking specialized organelles. ... In contrast, protists are mostly single-celled eukaryotic organisms that are not plants, fungi, or animals.
a. Copy and complete the word equation for photosynthesis.
Carbon Dioxide +____----->____+______
b. explain how chlorophyll helps this reaction to happen.
Answer:
carbon dioxide + water + glucose + oxigen
Explanation:
Chlorophyll is responsible for the green color of plants, which through the process of photosynthesis transforms sunlight into natural chemical energy
Answer:
a. Carbon Dioxide + Water -----> Glucose +Oxygen
Sunlight
b. The light dependent reaction takes place within the thulakoid membrane and requires a steady stream of sunlight, hence the name light dependent reaction. The chlorophyll absorbs energy from the light waves, which is converted into chemical energy in the form of the molecules ATP and NADPH
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What are air plants?
Why don’t they need soil to grow?
How can this science help us cobalt real life problems ?
Answer:
1. Air plants are part of the Bromeliad family, air plants are epiphytes — plants that attach themselves to other plants for support, without relying on the host to thrive.
2. They absorb moisture and nutrients through their leaves, not their roots, which they use only to anchor themselves to other plants or objects. Since air plants don't absorb their nutrients through their roots, they can't be planted in the soil.
3. The internal structure and anatomy of Tillandsia have adapted to survive on varied hosts both alive and not. Their leaves are able to pull moisture from the air more efficiently while some have developed a camel-like ability to store water and survive in areas prone to drought. Being up in trees or on rocky cliffs protects these plants from damage done by foraging animals, flooding or erosion on the ground.
Explanation:
Epiphytic plants can be used to determine the elemental composition of the air and soil in which they grow, cycle nitrogen, affect water retention within the rainforest, and house many resources for various plants and animals.
Through the analysis of epiphytes, biologists can determine changes in air and soil composition over time. Air pollution in the rainforest can be monitored by the use of air plants. By monitoring how mosses and lichens respond to different air pollutants, especially heavy metals, the effect that the toxins have on the environment can be determined In the rainforest, epiphytes can be placed in areas where there is ecological damage to determine if nearby pollutants are affecting the health of the forest and additionally play a role in nitrogen cycling.
1. The blood vessel that carries deoxygenated blood to the heart.
A. aorta
B. pulmonary vein
C. pulmonary artery
D. vena cava
which sequence is correct about the circulation process?
A. deoxygenated blood > left heart > aorta > organs > oxygenated blood > vena cava .> right heart
B. oxygenated blood > right heart > lungs > deoxygentaed blood > vena cava > left heart > aorta > organs
C. deoxygenated blood > aorta > left heart > lungs > oxygenated blood > right heart > vena cava > organs
D. oxygenated blood > left heart > aorta > organs > deoxygenated blood > vena cava > left heart
Which of the following is NOT a function of valves?
A. To allow blood in the big arteries to flow out and not back into the heart.
B. To filter the the blood cells as they pass through the vessels.
C. To let blood flow in one direction, towards the heart in veins.
D. To allow blood flow from the upper chamber to the lower chamber of the heart.
Answer
The first one is vena cava.
Not sure abt the 2nd and 3rd. Sry
Answer:
1. D
2. A
3. A
Explanation:
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answer asap asap!
bio
Please help me with 11-12 thank you so much
11. Flames consume and use energy, require oxygen, and moves through the environment.
12. Although it consumes oxygen and produces carbon dioxide like living things, it is nonliving because it has no body or structured cell system.
what determines whether two proteins will bind to each other?
Answer:
They will bind to each other if they have complementary shapes and chemical properties.
Explanation:
If something were to complement each other, they would be more attracted to each other like magnets. For example, purines would bind with a complementary pyrimidine versus another purine.
Look at each picture. Then write in the term that best completes each sentence:
cross-pollination dominant
genetic information
recessive
1. Offspring cells are
identical to parent
cells because they
contain identical ____
2. The pea plant in
this picture is polli-
nating another
plant. This process is
called ______
3. In pea plants, the
allele for purple
flower color is ______
4. Pea plants with
white flowers receive
two __________
over the allele for
white flower color.
alleles for flower
color from parents.
Answer:
the answer is C. The plant received both alleles from both the parents.
Explanation:
Michelle was curious about her mother's blood type. Michelle knew that her own blood type was o,
her father's blood type was A, and her two sisters and one brother both also had type A blood. How
could Michelle have type o when everyone else around her seems to have type A blood? Michelle is
really frustrated. Please help her out by making a possible Punnett square showing how this could
happen.
Blood type is determined by the I gene. IAIA and IAi determines A blood type. IBIB and IBi determines B blood type. ii determines 0 blood type. Michelle's mother must at least carry one recessive allele i.
--------------------------------
The blood type is determined by a gene, which is triallelic.
IA dominant over i. The person presents A type of antigens.IB dominant over i. The person presents B type of antigens.IA and IB are codominant. The person presents both types of antigens, A and B.i is the recessive allele. The person does not present any antigen.⇒ H0m0zyg0us dominant individuals IAIA, or heter0zyg0us Individuals IAi, will express the A blood type.
⇒ H0m0zyg0us dominant individuals IBIB, or heter0zyg0us Individuals IBi, will express the B blood type.
⇒ Individuals with h0m0zyg0us recessive genotype, ii will express the 0 blood type.
⇒ Individuals carrying IA and IB alleles will express the AB blood type.
To solve the problem, we will use this information.
We know that
Michelle is blood type 0 Father is blood type ABrother and sister are blood type AMother??⇒ If Michelle is blood type 0, then her genotype is ii. She must have received one recessive allele from her father and one from her mother.
⇒ This suggests that Michelle's father, who is blood type A, is heter0zyg0us IAi. He must have at least one dominant allele IA that determines his phenotype, and one i allele.
⇒ Michelle's brother and sisters are also type A. They might be either h0m0zyg0us dominant IAIA or heter0zyg0us IAi.
⇒ Michelle's mother should have at least one recessive allele i. She could be either IAi or IBi, or ii. There are three possible option for her genotype.
Let us make the Punnet squares to understand it better. We know the genotype of the father, but there are three options for the mother.
Option 1
Cross) father x mother
Parentals) IAi x IAi
Gametes) IA i IA i
Punnett square) IA i
IA IAIA IAi
i IAi ii
F1) 25% of the progeny is expected to be h0m0zyg0us dominant IAIA
50% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be h0m0zyg0us recessive ii
75% of the progeny is expected to be blood type A ⇒ IAIA and IAi ⇒ Sisters and brother
25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Option 2
Cross) father x mother
Parentals) IAi x IBi
Gametes) IA i IB i
Punnett square) IA i
IB IBIA IBi
i IAi ii
F1) 25% of the progeny is expected to be IAIB
25% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be heter0zygus IBi
25% of the progeny is expected to be h0m0zyg0us recessive ii
25% of the progeny is expected to be blood type AB ⇒ IAIB
25% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother
25% of the progeny is expected to be blood type B ⇒ IBi
25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Option 3
Cross) father x mother
Parentals) IAi x ii
Gametes) IA i i i
Punnett square) IA i
i IAi ii
i IAi ii
F1) 50% of the progeny is expected to be heter0zygus IAi
25% of the progeny is expected to be h0m0zyg0us recessive ii
50% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother
50% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle
Despite the fact we can not determine for sure the mother's genotype, we know that she carries at least one recessive allele, which is why Michelle's blood type is 0.
------------------------------
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An idea that has been tested Widely,  is supported by extensive evidence, and is accepted by most scientist in a particular field of study, is called a(n)?
A. Hypothesis
B. Scientific law
C. Scientific variable
D. Theory
Answer:
D. Theory
Explanation:
Bears are known to hibernate during the winter and give birth to their cubs 1 point
in the spring. This is made possible because bears mate in the spring and
after a brief moment of embryo development, the embryo stops
development for several months. If the mother has enough stored energy
to last her and her babies through the winter, the embryo will implant and
continue to develop into a baby. What organic molecule would allow the
mother to have energy to allow the embryo to grow through the winter?
Water molecules because it is used during osmosis
Monomers because they are smaller units that makes up polymers
Proteins because it gives the body support
Lipids because lipids stores energy
Answer:
ufuddsiodpfofiffopOI
Explanation:
Is the carbon used in photosynthesis balanced by carbon given
off by cellular respiration?
Answer: In this way, photosynthesis and cellular respiration are linked in the carbon cycle. Photosynthesis requires atmospheric carbon, while cellular respiration returns carbon to the atmosphere, and vice versa for oxygen.
Explanation:
What temperature is indicated on each of the thermometers below?
Answer:
1. 0 degree 2. 25 degree 3. 20 degree 4. 45 degree 5. 1 degree
Which description best explains Watson and Crick's DNA model?
A. DNA is a single–stranded molecule that has nitrogenous bases toward its exterior.
B. DNA is a double helix made of two strands linked together with hydrogen bonds.
C. DNA is a double helix that contains nitrogenous bases toward its exterior.
Answer:
A . ..............,.................
Answer:
DNA is your saliva
Explanation:
IN YOUR CLASS
8
What statement is true about cell walls.
1
Cell walls are present in animal cells
O All cells have cell walls
O Cell walls support, shape, and protection the cell
O In plants, cell walls are made of proteins
Answer:
Although 3 and 4 are great answers, I honestly think the answer is C. Because you can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells. Cell walls contain only little amount of protein in the cell wall.
Explanation:
Not all cells have a cell wall; the cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Cell walls are found in both prokaryotes and eukaryotes, although not all cells have cell walls. Animal cells does not have a cell wall; Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.
Neurons communicate with other neurons in 3 phases: What are the 3 phases?
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Answer:
那么问题是什么
我不明白
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Which of the following groups is difficult to define into species using the Biological Species concept?
A. Vertebrates
B. Asexually reproducing organisms
C. Sexually reproducing organisms
D. Insects
Asexually reproducing organisms groups are difficult to define into species using the Biological Species Concept.
Why is it difficult to define a species using the concept of a species?In summary, the main limitation of the concept of organisms is that they are independent of ectopic speciation and are not applicable to (1) Fossil species. (2) Organisms with asexual reproduction or extensive self-fertilization. (3) Sexual organisms with an open mating system (seed that mates freely).
Asexual reproduction is a type of reproduction that occurs without cell or germ cell interaction. In the case of asexual reproduction, the organism does not need a spouse to reproduce. Organisms that undergo asexual reproduction to produce offspring are called asexual species.
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The products of photosynthesis are glucose and ___
Answer:
oxygen
Explanation:
The products of photosynthesis are glucose and oxygen.
Answer:
Oxygen
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.
Which group of organisms obtains energy by breaking down waste and dead organisms?
consumers
decomposers
predators
producers
right answer: decomposers
HELPPPPPPPPPPPPPPPP
organelle
DEFINITION:
Answer:
They are the organs of the cells
Explanation:
the end
Answer:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive
Explanation: