Answer:
2
Explanation:
There are two kinds of photosystems: photosystem I (PSI) and photosystem II (PSII) (Fig. 3.3).
Answer:
Two
Explanation:
What is the difference between physical properties and chemical properties of matter?
A. physical properties are recognized when substances react with one another, while chemical properties do not change the composition of matter,
B. physical properties cannot be studied, while chemical properties of matter can be studied
C.physical and chemical properties are the same thing
D. physical properties do not change the composition of matter, while chemical properties can be recognized only when substances react or don't react with one another
Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?
A. Competition
B. Mutualism
C. parasitism
D. predator-prey
Answer:
A. Competition
Explanation:
Both species of bird need to compete for limited resources, in this case they need to compete for both territory and food
Answer:
Competition
Explanation:
Research and Report: Draw a diagram showing how
new mutations can be added to a gene pool.
Answer:
Explanation:
Answer: I mean the instructions are pretty clear and you still ask for help?
What does Greenberg identify as being a terrible problem, and how do we fix it?
To answer the question need to watch this video:
https://youtu.be/_jaWs87t5UM
Answer:
The correct answer is - A large amount of sea life is being taken from the ocean to feed other creatures.
Explanation:
In this video, Greenberg found out that there is a terrible problem as using fishing on a large scale causing harm to marine life and resulting in the extinction or endangering of species on large scale or taken from the ocean to feed other creatures.
To correct this he talks about the overfishing problems He talks about preventing people from overfishing so many fish do not have to face problems of extinction.
List one organism and describe all of its adaptations.
Adaptation is a mechanism of species to survive and reproduce in their environments, adjusting to selective pressures. Cactus: leaves, stems, spines.
What is adaptation?
In biology, adaptation might be defined as the mechanism of organisms to improve their fitness in the environment in which they live, adjusting to different changes and selective pressures acting on them.
Adaptation involves molecular, physiological, morphological, and behavioral changes.
For these changes to persist and be transmitted from generation to generation, they must increase the individual's fitness. They must increase the individual survival and reproductive probabilities, making it more competitive.
A good and easy to unsderstand example of adaptation is the cactus.
Cactusses are plants adapted to dry and hot environments like deserts, where water availability is scarse and temperatures are high.
To avoid dehydration, cactusses have developed wide palmated or cilindirical stems and reduced or vestigial leaves.
They use stem tissues to store water. Vestigial or reduced leaves to avoid transpiration and water loss.As their leaves are not developed, their stems photosynthetize to produce organic compounds.
Some species are very rich in water and nutrients, so they turn to be covetted by other species. Animals living in the same environment look for them as a source of food.
To avoid predation, cactusses have developed large and numeros spines that are leaves modifications. This is another adaptation to avoid being eaten by animals and avoid loosing water through leaves.
You can learn more about adaptations at
https://brainly.com/question/14420984
What are the functions of the digestive system?
Answer:
The function of the digestive system is digestion and absorption.
Explanation:
Digestion is the breakdown of food into small molecules, which are then absorbed into the body.
what is an indication that water is entering a cell?
Answer:
water decreasing from where it came from
Explanation:
that or the cell starts to swell
How is facilitated diffusion similar to
active transport?
A. Neither require energy.
B. They both use protein channels.
C. Both move against the concentration gradient.
Observing Animals (Image Attached)
Let’s study and compare three animals: a frog, an ancient and extinct mammal-like animal, and an owl. Observe the illustrations, and then answer the questions.
1. How are the bodies of the three animals similar to one another? How are they different?
2. What might these similarities suggest about the common ancestor of these organisms?
Answer: They each have patches on their stomachs. Also, all 3 animals have claws or legs, even though they play different function in each organism, they 3 still share the same characteristics of having claws or legs.
Explanation:
I am also trying to understand the 2nd question, but this is the answer to the 1st one.
tRNA uses (anticodons/codons) to match to the mRNA.
Answer:
anticodons
Explanation:
codons are for mRNA
tRNA uses anticodons to match to the mRNA.
Which one does tRNA uses?tRNA (transfer RNA) molecules are responsible for carrying specific amino acids to the ribosomes during protein synthesis.
They have an anticodon region that consists of three nucleotides that are complementary to the codons on the mRNA (messenger RNA). The codons on the mRNA determine the sequence of amino acids in the growing polypeptide chain.
The anticodon on the tRNA base pairs with the complementary codon on the mRNA, ensuring that the correct amino acid is incorporated into the growing protein chain. The matching between the anticodon and codon is essential for the accurate translation of genetic information into protein synthesis.
Learn more about tRNA at:
https://brainly.com/question/4089622
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Which conclusion is supported by the fact that the black-breed boar, with its quality meat, and the white-breed sow, with its quality fertility, are swine that are often matched for mating? Animals are often paired based on physical traits and personal compatibility. Strong reproductive capability is the most important trait in animal breeding. Selective breeding combines ideal traits of animals to replicate in offspring. Swine are the only agricultural animal species that are currently crossbred.
Answer:
Selective breeding combines ideal traits of animals to replicate in offspring
Explanation:
Selective breeding is the process which involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. It is also known as artificial breeding and provides both plants and animals with greater variation and higher chances of survival. Selective breeding can be used to produce plants with bigger and tastier fruits and vegetables, crops with greater resistance to pests and diseases, and bigger animals that can be used for meat or milk production. The process of selective breeding is of great importance to the farmer today as it has brought about greater economic advantages.
In the instance of the black-breed boar and the white-breed sow being matched for mating, the reason is to combine these desirable traits in their offspring. The black-breed boar produces quality meat while the white-breed sow has quality fertility. Mating between these two breeds will produce offspring which has both traits of quality meat production as well as quality fertility.
What is the term for a male sheep that can be a
father?
Answer:
ram
Explanation:
The best explanation for the presence of vestigial pelvis and femurs in some snake and whale species is
Answer:
a common ancestor that used these structures to perform one or more specific functions
Explanation:
A vestigial structure is an organ that has no obvious function in an organism, but it has been used by a past ancestor to perform one or more specific functions. Thus, vestigial structures have been retained in the course of evolution, but they lost their ancestral functions. Vestigial structures/organs can be detrimental for the organism because it is required energy to maintain them and they may suffer diseases (e.g., cancer). Some well-known examples of vestigial organs/structures include, among others, the wings of ostriches and cormorants, the human appendix, etc.
What type of cells are produced in Meiosis?
What type of cells are produced in Mitosis?
Why does Mr. Evil think that he will be able to tunnel from Snivley's grandmother's house to the Daily City back at some point in the future?
Answer:
Mr. Evil, thinks that he will be able to tunnel from Snively's grandmother's house to Daly City bank because when the plate slides (the one that has Snively's grandmother's house) close enough to the bank; he will be able to dig a tunnel into the bank.
HURRY//BRAINLIEST!
Which of the following is an example of an animal that might be culled?
A. Clyde is a healthy but overly aggressive and mean dairy bull.
B. Buck is lean and muscular but looks similar to all of the other beef bulls.
C. Rosie has produced a lot of dairy calves, but her milk production is low.
D. Sami had low birth weight as a lamb but quickly grew into a large sheep.
I think it would be B, sorry if it's wrong, but yay if it's correct! :) ✨
Why do multicellular organisms perform mitosis and meiosis ?
Answer:
Multicellular organisms depend on mitosis for growth and repair. When an animal, plant or other multicellular organism grows, it makes more cells through mitosis. Organisms can repair some of their tissues, using mitosis to regenerate new cells.
Explanation:
3. What is a type of asexual reproduction that com-
monly occurs in many species of unicellular pro-
tists? (1) external fertilization (2) tissue regenera-
tion (3) binary fission (4) vegetative propagation
Answer:
In fission (or binary fission), a parent separates into two or more individuals of about equal size. This type of reproduction is common among single-celled organisms including bacteria, archaea, and unicellular eukaryotes, such as protists and some fungi. The single cell divides into two daughter cells.Aug 17, 2016
Explanation:
What are the symptoms of Ruşts?
Answer:
Pale leaf spots eventually develop into spore-producing structures called pustules.
The pustules are found most commonly on the lower leaf surface and produce huge numbers of microscopic spores.
Pustules can be orange, yellow, brown, black or white.
In some cases there may be dozens of pustules on a single leaf.
Explanation:
What is the main difference between active transport and passive transport?
(A) During active transport the water inside the cell is used to transport substances throughout the cell. Passive transport uses the cell's cytoplasm to move substances around the cell.
(B) Passive transport moves substances throughout the cell without using the cell's energy and active transport moves substances using the cell's energy.
(C) Active transport moves substances from higher concentrations to lower concentrations and passive transport moves substances from lower concentrations to higher concentrations.
(D) Passive transport moves substances that are too large to get through the cell membrane by forming a vesicle inside the cell and active transport forms the vesicle on the outside of the cell.
Answer:
B
Explanation:
passive transport uses diffusion to transport while active transport uses some energy most commonly atp
Substance A is a gas and substance B is a liquid, They are at the same temperature why is one gas and one a liquid
What are the factors that determine
the level of harm an introduced chemical
has on the enviroment?
PLEASE ANSWER QUICKLY
Someone please help me will mark branliest and give you lots of points
1. The bio-molecule that is part of DNA is the carbohydrate. *
A: Agree
B: Disagree
2. Each nucleotide has 3 parts
A: Agree
B: Disagree
3. Deoxyribose is the base in DNA.
A: Agree
B: Disagree
4. Chargaff found the same four bases are found in the DNA of all organisms.
A: Agree
B: Disagree
5. Cytosine is always paired with thymine.
A: Agree
B: Disagree
6.The proportion of the four bases are the same for all organisms. *
A: Agree
B: Disagree
7. The base pairs are held together with hydrogen bonds.
A: Agree
B: Disagree
8. DNA strands on the double helix are identical to each other.
A: Agree
B: Disagree
9. Scientists Watson and Crick made the first 3D model of DNA.
A: Agree
B: Disagree
10.What is the complementary DNA strand to the following: CGT AAG CGC TAA TTA *
A: CGT AAG CGC TAA TTA
B: GCA TTC GCG ATT AAT
C: GCA UUC GCG AUU AAU
11. What is the complementary DNA strand to the following: ACT AAC GGT AGC TAG
A: TGA TTG CCA TCG ATC
B: ACT AAC GGT AGC TAG
C: UGA UUG CCA UCG AUC
What is the complementary DNA strand to the following: GGC ATT CGC GAT CAT
A: CCG TAA GCG CTA GTA
B: CCG UAA GCG CUA GUA
C: GGC ATT CGC GAT CAT
Answer:
1. Disagree
2. Agree
3. Disagree
4. Disagree
5. Disagree
6. Agree
7. Agree
8. Agree
9. Disagree
10. not sure sorry
11. not sure so so so sorry
12. I AM SO SOSOSOSOSOSOO SORRY I DONT KNOW HOW TO DO THIS I FORGOT
Explanation:
I HOPE THIS HELPED EVEN A LITTLE
how does pollution travel from a river to the ocean?
a) pollution flows upstream toward the ocean
b) pollution flows downstream toward the ocean
c) pollution flows toward the bank of a river and then to the ocean
d) pollution flows toward the source of a river
Answer:
d
Explanation:
This is the combination of decomposed organic matter and weathered rock that supports plant growth
Answer: Soil
Explanation:
Viruses can be prevented by receiving a weakened form of the virus called a?
A)plastid
B)vaccine
C)antibiotic
D)fertilizer
In what order are human beings classified?
Answer:
The order they are classified in is Primates
Explanation:
what are the limitations of coal
Answer:
The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance linked to acid rain.
Explanation:
Arturo ran a 3,000-meter race. His running time from start to finish was 10 minutes. What was Arturo's average speed?
Answer:
300 meters/min
Explanation:
average speed = distance / time
(3000 m) / (10 min) = 300 meter per minute
if you need it in meters/sec then just multiply 10 by 60 first and then continue
(3000 m) / (600 sec) = 5 m/s
Four groups of organic compounds found in living organisms are proteins carbohydrates lipids and nuclei acids. Which element is a main component in nucleic acids but not in the other three organic compounds?
Answer:
Phosphorus
Explanation:
Nucleic Acids are made up of Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus. Remember that they have a sugar phosphate backbone and their nucleotide bases.
An easy way to remember what all four macromolecules are made up of is
CHO-CHO-CHON-CHONP
Carbohydrates-Lipids-Proteins-Nucleic Acids
Carbon(C)
Hydrogen(H)
Oxygen(O)
Nitrogen(N)
Phosphorus(P)