Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
Explanation:
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. ... Any mold fossil can potentially form a cast mold
Explanation:
pls make me brainliest
Where photosynthesis takes place
Photosynthesis
Products
Chloroplasts
Reactants
Glucose
Answer:
I believe it's chloroplast
Explanation
(Score for Question 2:
of 4 points)
2. Explain how to focus a microscope using the high power lens. Include any safety issues you need to be
aware of
Answer.
Type your answer her to focus a microscope using the high-power lens you have to use the focus adjustment
knob but be careful because if you crank down too hard you can damage the microscope and the slide
Is my answer right
To focus a magnifier using the high-energy lens you haveto use the main focus adjustment knob however take care as a result of if youcrank down too hard, you'll be able to harm the magnifier and therefore the slide.
Fine Adjustment Knob - This knob is within the coarse adjustment knob and is employed to bring the specimen into sharp focus underneath low power and is employed for all focusing once using high power lenses.You don't wish to wreck the slide. therefore you ought to forever look on the aspect of the magnifier therefore you do not break it and use fin adjustment knob only.
Hope it helps!
What is the direct result of this biological process?
a) duplication of genetic material
b) formation of mutations within cells
c) fertilization of an egg with a sperm
d) generating new combinations of alleles
Answer:
C
Explanation:
The direct result of this biological process is generating new combinations of alleles. The correct option is d.
What are chromosomes?Chromosomes are x shapes of hereditary material that are preset inside the nucleus. It is made up of DNA, genes, and proteins. Genetic characteristics of the genotype of an organism are unique because of unique genetic material, and this can be transferred to another generation from the first generation.
"Allele" is the word that we use to describe the alternative form or versions of a gene. People inherit one allele for each autosomal gene from each parent, and we tend to lump the alleles into categories. When chromosomes cross over happens, the alleles changes and a new combination produces.
Therefore, the correct option is d. generating new combinations of alleles.
To learn more about chromosomes, refer to the link:
https://brainly.com/question/28013528
#SPJ6
If all cells in your body contain the same DNA why do they perform different functions. Pls help
Answer: These cells are different because they use the same set of genes differently. So even though each of our cells has the same genes, each cell can select which ones it wants to "turn on" and which ones it wants to keep "turned off". So when everything is working properly, each cell type only reads the genes it needs.
Explanation:
They are differentiated based on the genes that's why they perform different function.
it involves a switch from one pattern of gene expression to another. What are genes? Gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called.Many genes do not code for proteins.To know more about genes here
https://brainly.com/question/8832859
#SPJ2
Do animal cells always have to be placed in isotonic solutions? Why?
Explanation:
because If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable
How does a vaccine effect your body's antibodies?
Answer:
Read this you will find the answer :)
Explanation:
The body identifies antigens as dangerous and stimulates antibodies to attack them. ... The first time the body encounters a germ, it can take several days to make and ... disease just before or just after vaccination could develop symptoms
SOMEONE PLEASE HELP ME PLEASE!!!!!!!!!!!!!!!!!!?!!!!!
Answer:
the correct answer is "C. 4"
Explanation:
The nucleus is a double-membraned organelle found in all eukaryotic cells. It is the largest organelle, which functions as the control center of the cellular activities and is the storehouse of the cell’s DNA. By structure, the nucleus is dark, round, surrounded by a nuclear membrane.
Compare what happens to chromosomes during anaphase 1 and anaphase 2
Answer:
Compare what happens to chromosomes during anaphase I and anaphase II. In anaphase I the two pairs of chromatids of each similar pair move away from each other to opposite ends of the cell. In anaphase II the centromere divides and the chromatids separated and move to opposite ends of the cell.
Explanation:
hope it helps, please mark as brainliest
In anaphase I the two pairs of chromatids of each similar pair move away from each other to opposite ends of the cell. In anaphase II the centromere divides and the chromatids separated and move to opposite ends of the cell.
Credits to the other person
Please help! I’ll give brainist
ummm actually ur right
During division, the code for the protein cytochrome-C had the code for proline
changed to the code for leucine. This type of change in the genetic material is
known as a -
A. redundant mutation
B. frameshift mutation
C. point mutation
D. chromosomal mutation
Answer:
Point Mutation
Explanation:
The type of change described, where the code for proline is changed to the code for leucine during division, is known as a point mutation. The correct option is C.
A point mutation refers to a change in a single nucleotide base of the genetic material (DNA or RNA).
In this case, the change occurred at a specific position in the genetic code, resulting in the substitution of one nucleotide for another. This substitution led to a different amino acid being incorporated into the protein sequence.
Thus, based on the description provided, the correct answer is C. point mutation, as it involves the specific substitution of one nucleotide for another in the genetic code.
For more details regarding mutation, visit:
https://brainly.com/question/17106056
#SPJ2
A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?
neurons, which are a type of muscle cell
cardiac cells, which are a type of muscle cell
epithelial cells, which are a type of blood cell
white blood cells, which are a type of blood cell
Answer:
Cell specialization, also known as cell differentiation, is the process by which generic cells change into specific cells meant to do certain tasks within the body. Cell specialization is most important in the development of embryos.
Explanation:
Neurons. Neurons are specialized cells that carry messages within the human brain
Muscle Cells. Muscle cells make movement possible
Sperm Cells. Specialized sperm cells are necessary for human reproduction
Red Blood Cells
Leukocyte. and those are some
Which of the following statements correctly describes a kingdom of classification?
A.Both Protista and Fungi have single-celled members.
B.Only the kingdom fungi have members that reproduce asexually.
C.Only the members of the kingdom Animalia have membrane-bound organelles.
D.All kingdoms contain members that store energy produced from photosynthesis.
Answer: A. Both protista and fungi have single celled members.
Explanation:
Please help me with this it’s the last one I need
Answer:
species
Explanation:
please mark me brainliest and 5 star
What is the function of the Nucleus?
A. break down worn out cell parts
B. help the cell maintain its shape
C. Store and protect DNA
D. Produce energy
Answer:
C
Explanation:
Answer:
The function of the nucleus is (C)–– to store and protect DNA.
Explanation:
Mary Jane’s red hair is a recessive trait. If Peter is heterozygous for hair color, what is the chance their baby will have red hair?
1/4
2/4
0
3/4
Answer:
2/4
Explanation:
If you know how to do a punnet square then you should use it, but if not then this is how you do it: (look at the document below)
Please please help...what will happen to these glands if they strike?
Answer:
gurl it would've been gangsta
Explanation:
I would be like what organs is this?
it would make you incomplete like
Under it, it may get worst since our stomach is made of acids, foods that we've swallowed may cause inflammation inside, our brain would've stop doing its thing, and lastly reproductive glands....Yes goodluck with that you might wanna get some transplant:>
In a certain species of plant, the color purple (P) is dominant to the color white (p). According to the Punnett Square, what is the probability of an offspring being purple?
Answer:
If both are (PP and ww) and one is dominant the other is recessive then it is 100% purple.
IF both are heterozygous (pw) then it is 75% purple and 25% white
if one is Hetro(pw) and the other is (ww) 50% white 50% purple
Explanation:
How are ocean currents formed?
Answer:
by wind and density
Explanation:
All of the following describe outcomes of urbanization except
O decreased soil pollution
O food chain disruption in a natural habitat
O increased wastewater from sewage drainage
O loss of plant biodiversity
Answer:
O decreased soil pollution
Explanation:
Urbanization does not lead to decreased soil pollution.
Pollution is the introduction of contaminants into the environments. As urbanization progresses and the population of people in a place increases, soil pollution increases.
Also, industrial expansion causes increased production of wastes. So, some of these wastes find their way into the environment of which the soil is a main component. There is an increased amount of soil pollution.13. What does DNA stand for?
14. What does the information contained in DNA determine?
15. What does DNA code for?
16. What are the monomers of DNA called?
17. What are the four nitrogen bases contained in DNA?
р
Nucleotide
Base
a.
b.
S
C.
d.
18. What phrase is used to describe the structure of DNA?
19. What is the backbone of DNA composed of?
20. Which base pairs with adenine?
Which base pairs with cytosine?
Answer:
13. deoxyribonucleic acids
14. DNA provides instructions for how each part of an organism will develop
15. instructions needed to make the proteins and molecules essential for our growth
16. nucleotides
17. adenine, guanine, cytosine, thymine
18. double helix
19. alternating sugar and phosphate groups
20. adenine pairs with guanine and cytosine pairs with thymine
The study of genes is called genetics.
The correct answer is mentioned below.
What is DNA?It is a component that stores all the genetic information of the human.
According to the question,
13. deoxyribonucleic acids
14. DNA provides instructions for how each part of an organism will develop
15. instructions needed to make the proteins and molecules essential for our growth
16. nucleotides
17. adenine, guanine, cytosine, thymine
18. double helix
19. alternating sugar and phosphate groups
20. adenine pairs with guanine and cytosine pairs with thymine
Hence, the correct answer to the question is described.
For more information about the DNA, refer to the link:-
https://brainly.com/question/14688752
Pick only ONE sentence Which sentence from the section shows why the right temperature is important for plants? (A) Temperature can also affect a plant (B) As with any living thing, a plant has an optimal temperature range at which it grows and preforms best (C) It may not be able to take in enough water and nutrients through it's roots (D) Too much heat can cause plant cells to break down, a process called denaturation.
Answer:
The correct answer is - (B) As with any living thing, a plant has an optimal temperature range at which it grows and performs best.
Explanation:
Like any other or most of the living organism, plants also required an optimal temperature range as they also required appropriate temperature for their growth and development and perform their functions at their best.
Optimum temperature range is a temperature range at which something performs its best similarly plants perform their cellular functions like photosynthesis, metabolism, reproduction, and many other functions that require a particular temperature range.
Which of the following scenarios can be classified as a negative feedback loop?
a increase in blood pressure to reduce heart rate
b increase in testosterone to help increase a fight-or-flight response
c increase in oxytocin caused by increased contractions
d increase in platelet production to help increase blood clotting
Answer:
The scenario that can be considered an example of a negative feedback loop is increase in platelet production to help increase blood clotting (option d).
Explanation:
Negative feedback loop is what occurs when a change occurs in the body, producing a response that decreases or stops that change, with the intention of maintaining homeostasis.
When there is a wound that produces bleeding, a series of mechanisms are activated, the coagulation cascade, which promotes the release of factors that allow the formation of clots. The increased release of platelets implies negative feedback because it helps to stop the change that occurs in the body, the loss of blood, through the formation of clots.
One thing that can cause confusion is the fact that this response also involves positive, though limited, feedback that promotes the production of clotting factors and platelets to increase clot formation. What really happens is that the positive feedback promotes the general feedback, which is the negative feedback: clot formation to stop the bleeding, restoring homeostasis.
The other options are not correct because:
a. Increase in blood pressure to reduce heart rate is not possible.
b. In the fight and flight response the hormones involved are cortisol and adrenaline, not testosterone.
c. Increased oxytocin in response to uterine contractions is positive feedback.
Answer:
A is the answer Not D
increase in blood pressure to reduce heart rate
Explanation:
Raymond is a social worker who works with abused children. Which type of empathy is it important that Raymond have?
Group of answer choices
Pity
Feeling
Cognitive
Affective
in a chemical reaction bonds in the reactants molecules are broken and new bonds are formed to yield products. how does an enzyme make this happen an optimal rate in a cell?
Answer:
A. It increases the amount of energy needed to break the bonds in the substrate.
Explanation:
Enzymes are known to be protein-based catalyst. It helps to speed up the chemical reactions that take place in the human body. They actually bind molecules and work in ways to alter chemical reactions. These enzymes are needed for food digestion, reproduction, healing diseases, blood coagulation, etc.
Enzymes help to increase the rate of reaction by lowering the activation energy. Certain enzymes can work to convert substrate to product at million of times faster. As a catalyst, it increases the energy needed to break bonds found in the substrate. This makes the reaction to occur at a faster rate.
What is a species of bacteria in your body that helps protect you?
From the passage:
Human Microbiome: The Role Of Microbes in Human Health
Answer:
Bacillus Subtillis
Explanation:
There are many, many types of bacteria that protect us. But for me, the main one would be Bacillus Subtillis. Its found on our skin, and it uses poison to fight off other microbes. In alot of cases, this bacetria can be found in a ton of antibiotics.
Someone plllsss help
Answer:
They will most likely be immune to the treatment.
Explanation:
This is the same as a viruse evolving to survive the vaccine for it.
Planets, stars, and galaxies are composed of different forms of matter which material makes up the planets in Earth's solar system?
Answer:
they all have solid cores of rock, metal, and maybe even ice, but these planets are totally enveloped in thick atmospheres of gas. Hydrogen and helium (the two lightest elements) make up most of the gases in the atmospheres of these planets
Explanation:
internet
in which way are photosynthesis and cellular respiration different
Answer:
Cellular respiration produces oxygen, while photosynthesis uses oxygen. Photosynthesis releases energy, while cellular respiration stores energy. ... Oxygen is produced during cellular respiration and stored during photosynthesis. Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Explanation:
A diagram of the carbon cycle is shown to the left.
Which of the following best explains the roles plants and
animals play in recycling carbon?
a.
Plants and animals both take in carbon through
respiration. They return it to the cycle through
decomposition.
b. Plants take in carbon through photosynthesis and
decomposition. Animals produce carbon through respiration.
C. Animals produce carbon through exhaling. Plants take in
carbon for photosynthesis.
d. Plants produce carbon through photosynthesis. Animals
take in carbon for breathing.
Answer:
b
Explanation:
animals poop which feeds the ground lol
Photosynthesis and respiration recycle carbon in plants. Animals get carbon from plants and exhale it. Therefore, option (B) is correct.
What is carbon cycle?The biogeochemical process known as the carbon cycle involves the transfer of carbon between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the most common element found in organic compounds, and it also plays a significant role in the chemical makeup of numerous minerals, including limestone.
Through the process of photosynthesis, plants take in carbon from their surroundings and then release it during the process of respiration. Plants are the source of carbon for animals, and animals exhale carbon during the process of respiration.
Therefore , option (B) best explains the roles plants and animals play in recycling carbon.
Learn more about carbon cycle, here:
https://brainly.com/question/26892220
#SPJ2
please help, thank u.