10.5% chromium
less than 1.2% carbon
Explain TWO reasons why it is important to develop alternatives to fossil fuel
energy sources,
Compare the practices of shelterwood cutting, clearcutting, and seed-tree cutting.
ANSWER:
Clearcutting removes all the trees within a certain area at one time. Shelterwood cutting also removes all the trees in an area, but does it in stages over several years. Seed-tree cutting removes all the trees except for a select number of mature trees that can then reseed the area. Seed-tree cutting and shelterwood cutting allow for the harvested areas to recover over time without direct intervention
Answer:
Clearcutting removes all the trees within a certain area at one time. Shelterwood cutting also removes all the trees in an area, but does it in stages over several years. Seed-tree cutting removes all the trees except for a select number of mature trees that can then reseed the area. Seed-tree cutting and shelterwood cutting allow for the harvested areas to recover over time without direct intervention
Explanation:
that's just what you said the answer was
Answer:
Clearcutting removes all the trees within a certain area at one time. Shelterwood cutting also removes all the trees in an area, but does it in stages over several years. Seed-tree cutting removes all the trees except for a select number of mature trees that can then reseed the area. Seed-tree cutting and shelterwood cutting allow for the harvested areas to recover over time without direct intervention
Explanation:
:P ;)
XD
thanks ):P
Have a nice day :3
all living organisms have DNA. That DNA is made of the same building blocks(nucleotides). what does this evidence suggest?
HELP!!! why is land considered a resource??
What are scientists?
Explain
Answer:
a person who studying or has expert knowledge of one or more of the natural or physical sciences
hope it can help you
What do you call a change in the environment that causes a response or reaction?
Question 2 options:
photosynthesis
style
stigma
stimulus
Answer:
stimulus
Explanation:
How does soil composition affect the number and types of organisms an environment can support?
(Biome majors)
Answer:
The number of organisms an ecosystem can support depends on the resources available and abiotic factors, such as quantity of light and water, range of temperatures, and soil composition. Given adequate biotic and abiotic resources and no disease or predators, populations (including humans) increase at rapid rates.
The illustration shows a model of the transport of solute particles from outside the cell to inside the
Inside of cell
Protein pump
High concentration
Low concentration
Energy
Outside of cell
What type of cell transport is modeled?
A
The model illustrates active transport because energy is required for solute particles to
cross the cell membrane,
0
B. The model illustrates diffusion because solute particles are moving from an area of higher
concentration to an area of lower concentration
C. The model illustrates facilitated diffusion because protein channels allow solute particles
to cross the cell membrane.
D. The model illustrates osmosis because water molecules are moving from an area of higher
concentration to an area of lower concentration,
Answer:
A. The model illustrates active transport because energy is required for solute particles to cross the cell membrane.
Explanation:
Active transport is the transport of molecules from a region of lower concentration to a region of higher concentration. In other words, movement occurs against a concentration gradient.
Due to this, it requires energy in form of ATP for this movement to occur. Hence, based on this question, the model illustrates active transport because energy is required for solute particles to cross the cell membrane.
Can you answer 5 and 6?
In sexual reproduction, two parent cells contribute genetic information to form offspring that are genetically different from both parents. Which of the following best describes an advantage of sexual reproduction?
Answer:
Hey There! There are multiple advantages for sexual reproduction so I will list them below.
Explanation:
- Variation in DNA
- Less competition for resources
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Hope this helps <3!
Genetic variety in the animals that use sexual reproduction is the advantage it has because it allows them to adapt to changes in the environment like Climate changes, Habitat loss, etc.
Hope this helps and have a nice day!
How many chromosomes make us human?how many chromosomes do we get from each parents
Answer:
46, 23 from each
hope this helps!
Answer:
A human typically has 46 chromosomes. They receive exactly half from each parent, therefore they receive 23 chromosomes from each parent since half of 46 is 23.
how does bacteria become immune to antibiotics? (short answer)
Which of the following is linked to an increase in brain size and intelligence in hominids?
options:
Increased social interactions
Development of more complex and tools and language
Decreased use of tools and language
Increased speed and strength
Answer: b
Explanation: I took the test
where the copying of
the DNA molecule begins.
Answer:
DNA replication initiates at specific points, called origins, where the DNA double helix is unwound. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis.
Explanation:
Answer:
Origins of replication
Explanation:
hope this helps!
Transcribe the following section of DNA 3’ G C C A T T A G 5’
Answer:
theres 2 answers actually
Explanation:
DNA TO RNA :
5’ CGG UAA UC 3’
DNA TO DNA :
5’ CGG ATT TC
Answer:
3' C G G U A A U C 5'
Explanation:
to transcribe means to change it into rna
to do that you just have to pair it with its nucleotide
thymine pairs with adenine
adenine pairs with uracil
guanine pairs with cytosine
cytosine pairs with guanine
3' C G G U A A U C 5'
hope this helps (:
which of the following is NOT a way in which a lake can become a
forest? *
A. The plants are eaten by many animals.
B. Dead leaves settle to the bottom.
C. The soils dry out.
D. The lake is filled with sediment.
Answer: A. The plants are eaten by many animals.
Explanation:
Body Temperature is maintained at through what type of energy?
Answer:
In the process of ATP production by cells throughout the body, approximately 60 percent of the energy produced is in the form of heat used to maintain body temperature.
Explanation: hope that helps
One of the following results when rocks that are under stress from the internal earth processes that produce continents and ocean basins rupture.
A)
earthquake
B)
volcanic eruption
C)
landslides
D)
hurricane
E)
tsunami
Answer:
Its Earthquake
Explanation:
PLS HELP I DONT KNOW HOW TO WORD THIS
Autosomal Dominant Compelling Helio Ophthalmic Outburst (ACHOO) Syndrome is characterized by uncontrollable sneezing in response to the sudden exposure to bright light, typically intense sunlight. ACHOO syndrome is inherited in an autosomal dominant manner. If a heterozygous father has children with a recessive mother predict the outcome of their offspring. Using the allele (A) for dominant and (a) for recessive, identify the following using complete sentences:
Father genotype
Mother genotype
Possible offspring genotypes
Possible offspring phenotypes
Possible offspring percentage breakdown
Answer:50% chance possible offspring
Explanation:
NEED HELP PLEASE as soon as possible!!!!!!!!!!
Which statement best explains the genetic variation that results from sexual reproduction?
A. Each chromosome contains many different genes.
B. Offspring receive genes that are exactly the same as one parent's genes
C. Offspring receive a mix of genes from two different parents.
D. Each chromosome contains many copies of the same gene.
Answer:
C. Offspring receive a mix of genes from two different parents.
Explanation:
30 POINTS PLEASE HURRY!!!
Pulmonary circulation is the key component that supports both respiratory and cardiovascular systems. Examine this diagram of a human heart as seen while looking at the front of the body.
*diagram would be pictured here, but is attached instead*
Which correctly identifies where the blood is flowing to and from?
A: lower body, B: left lung, C: right lung, D: upper body
A: upper body, B: right lung, C: left lung, D: lower body
A: right lung, B: upper body, C: lower body, D: left lung
A: left lung, B: lower body, C: upper body, D: right lung
Answer:
A: upper body, B: right lung, C: left lung, D: lower body
Explanation:
Answer B
Explanation:
Which hormone causes the endometrial layer inside the uterus to thicken?
A. luteinizing hormone
B. estrogen
C. testosterone
D. progesterone
I’ll give brainiest:)
Answer:B
Explanation:Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy. In the middle of the cycle, an egg is released from one of the ovaries (ovulation). Following ovulation, levels of another hormone called progesterone begin to increase.
pancreatic amylase is a digestive enzyme that digests starch in the small intestine. pancreatic amylase's optimum pH is slightly basic, which the presence of NaHCO3 provides. indicate which test tubes (1-3) would show digestion of starch following incubation. Explain why the others would not.
Tube 1 = water, starch
Tube 2 = water, starch, pancreatic amylase, HCI
Tube 3 = water, starch, pancreatic amylase, NaHCO3
Answer:
Tube 3
Explanation:
Pancreatic amylase's optimum pH is basic, NaHCO3 is a base so it will provide the optimum pH for the enzyme to catalyse the breakdown of starch.
In tube 1 there will not be the breakdown of starch as there simply isn't any enzyme to break it down.
In Tube 2, the enzyme pancreatic amylase will most probably become denatured (loss of shape), as HCl is acidic which causes it to lose shape causing a change in the active site and will never be able to catalyse the breakdown of starch.
Hope this helps :)
Can rocks melt from heat?
A. Yes
B. No
Answer:
A
Explanation:
They become magma
A pedigree is shown above that tracks a trait through four generations in a family. Based on the inheritance patterns of this trait, which statements accurately justify that this is a sex-linked recessive trait? Select all that apply.
A) Individuals 1-1 and 11-4 are carriers.
B) The trait is passed from fathers to sons.
C) Males are being affected more frequently than females.
D) The trait is expressed on a chromosome other than the X or Y.
E) The trait appears in later generations after being absent in one generation.
Answer:
The answer above is only one of the answers. The answers are A, C, and E! I did the USATestPrep and those were the answers. Mark as brainliest plz!
Explanation:
answer the question below please
How do autotrophs and heterotrophs benefit one another within an ecosystem?
A.
Autotrophs synthesize ATP and other nutrients for heterotrophs, which produce oxygen for autotrophs.
B.
Autotrophs produce oxygen and carbon dioxide for heterotrophs, which produce chemical energy for autotrophs.
C.
Autotrophs fix carbon and produce oxygen for heterotrophs, which produce carbon dioxide for autotrophs.
D.
Autotrophs transform chemical energy into radiant energy for heterotrophs, which fix carbon for autotrophs.
The answer is down below have a great day!
Answer:
C. Autotrophs synthesize ATP and other nutrients for heterotrophs, which produce oxygen for autotrophs.
Explanation:
Help! Science work!!
what is the perimeter of a triangle?
Answer: P= a+b+c
Explanation: :)
A student conducted an investigation to determine the effect of water temperature on
the amount of sugar that dissolves in a beaker of water. Identify components for trial 1
of this investigation.
Trial 1
Terms
Variable
Beaker
Number
1
2
3
4
Amount of
Water (mL)
100
100
100
100
Temperature of Temperature of Amount of Sugar
Sugar (°C) Water (°C) Dissolved (9)
20
5
185
20
10
189
20
15
194
20
20
204
Constant
The given question provided the data of an experiment to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water and asked to identify the components:
Amount of Water (mL) - constantThe temperature of Amount of Sugar - constantThe Temperature of water (°C) - variableAmount of Sugar dissolved (g) - variableIn any research investigation or experiment, there are three main parts that are:
Independent variable: These are the variables that are manipulated or change to see the effect on the dependent variable, these are manipulated by the researcher. In this investigation, the independent variable is the temperature of the water as it affects the amount of sugar that dissolves.Dependent variables: these are the variable that also changes due to change and according to the change in the independent variables. In this investigation, the amount of sugar that dissolves changes according to the change in the temperature of the water, thus, its dependent variable.Constant or control: these are the parts that do not change during the experiment so there is no other influence occur in the Dependent variable.Thus, the correct answer is -
Amount of Water (mL) - constantThe temperature of Amount of Sugar - constantThe Temperature of water (°C) - variableAmount of Sugar dissolved (g) - variableLearn more about independent variables:
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