What is a photosystem?
a structure which contains stroma
b structure where the dark reaction occurs
c structure through which H+ flows to form ATP
d cluster of the light-absorbing molecules called pigment
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This serves as a quick energy source.
a. carbohydrate.
b. nucleic acid.
c. lipid.
d. protein.
What is the evolution of humans
Answer:
Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years
Explanation:
Answer:
Human evolution is the lengthy process of change by which people originated from apelike ancestors.
Explanation:
The prefix exo- means “out of” and the prefix endo- means “taking in”. How do these meanings relate to the meaning of exocytosis and endocytosis?
Answer:
Cytosis is is the transportion of large quantities of molecules into and out of cells. If exo means out of, that means the molecules are moving out of the cell. Endocytosis is when molecules move into the cell.
Explanation:
Answer:
The prefix “endo” means
✔ in
.
The prefix “exo” means
✔ out
.
✔ Homeostasis
is the state of maintaining a stable internal environment despite changing external conditions.
for yall on egde.
Explanation:
What happens during asexual reproduction?
no change in chromosome number
a change from diploid to haploid
a change from haploid to diploid
Answer:
what is the role of centrioles apart from spindle fiber
What do you think would happen if cells were not able to replicate and divide
Answer:
theyed eventually become extinct because they are unable to reproduce
Answer:
Each cell has an identical set of DNA (chromosomes), and this DNA is also identical to that of the parent cell. If the cell cycle is not carefully controlled, it can cause a disease called cancer, which causes cell division to happen too fast.
Which climate is a subcategory of temperate marine climates? O arid
O humid subtropical O humid continental O tundra
Answer: Humid subtropical
Explanation: There are three kinds of temperate marine climates: marine west coast, humid subtropical, and mediterranean. Marine west coast climates are the coolest temperate marine climates. Humid ocean air brings cool, rainy summers and mild, rainy winters. Mediterranean climates are drier and warmer.
Answer:
B is your answer
Explanation:
When cells want to store up energy will they add or delete a phosphate group
Answer:
they will add.
Explanation:
When a cell has energy available it can store small amounts of energy by adding a phosphate group to ADP molecules producing ATP molecules. The energy stored in ATP is released when ATP is converted to ADP and a phosphate group.
please help, will give brainliest
Answer:
contraction and relaxation of the heart
Explanation:
Intermolecular forces hold biomolecules together. They are also found between biomolecules. Which of these is a place you would expect to find hydrogen bond in a biomolecule?
a) between amino acids in a protein
b) between adenine and thymine in DNA
c) between the ribose and phosphate in RNA
d) between glucose and fructose in a sucrose molecule
(USA Test Prep)
Answer: B.
Explanation:
Answer:
B) Between adenine and thymine in DNA
Explanation:
A hydrogen bond would be found between adenine and thymine in DNA.
Peptide bonds- found in proteins
Covalent bonds - found in the backbone of nucleic acids
Glycosidic links - found in carbohydrates such as sucrose
Therefore, the only answer left, after you cross out the other from the information above, is B: Between adenine and thymine in DNA
Which of the following statements about cells is true?
Answer:
All cells have DNA. Hope that helps
answer for brainlist
Answer: Your answer is A
Explanation: Really hoped i helped u out
Answer:
Genes
Explanation:
if im not mistaken the answer is A
What stage of mitosis is this? Brainliest will be involved for the correct answer
Answer:
Metaphase
Explanation:
The answer is metaphase.
What is the role of transport
proteins in active transport?
Please help asap!! :)
What is the definition of temperature?
Answer:
the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
the degree of internal heat of a person's body.
"I'll take her temperature"
INFORMAL
a body temperature above the normal; fever.
"he was running a temperature"
what happens to carbon dioxide molecules in the body cells?
Answer:
Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate. The majority of carbon dioxide is transported as part of the bicarbonate system. Carbon dioxide diffuses into red blood cells.
Explanation:
Poison dart frogs live in the rainforest. They produce a poison by eating toxic fire ants. The only known predator is a snake, Liophis epinephelus. Which is most likely a density-independent factor that affects the poison dart population in the rainforest? clear cutting the rainforest limited food source susceptibility to disease increase in population of Liophis epinephelus
Answer:
Clear-cutting the rainforest
Explanation:
Density-independent factors of a population are factors that limit the size of a population irrespective of the density of the population.
A limited food source can only be defined by the size of a population, diseases will spread faster in high-density populations, and an increase in the population of a predator will cause a decrease in the population size of the predator's prey.
Clear-cutting of the rainforest means automatic destruction of the habitat of the poison dart frog's population, no matter the population size. Hence, clear-cutting of the rainforest is considered as the density-independent factor in this case.
Answer:
A.) clear cutting the rainforest
Explanation:
got it right on edge 2021
"Landscapes all over the world are always _______?
Answer:
flat
Explanation:
Scientific names are understood by all scientists because the names are written in
Answer:
A. binomial system
B. According to taxon
Explanation:
A. The binomial system of nomenclature brings order to a chaotic world of common names. No two kinds of animals have the same binomial name, and every animal has only one correct name, as required by the International Code of Zoological Nomenclature, thereby avoiding the confusion that common names cause.
B. Any grouping of animals that shares a particular set of characteristics forms an assemblage called a taxon. For example, a housefly (Musca domestica), although obviously unique, shares certain characteristics with other flies (the most important of these being a single pair of wings). Based on these similarities, all true flies form a logical, more inclusive taxon. Further, all true flies share certain characteristics with bees, butter-flies, and beetles. Thus, these animals form an even more inclusive taxon. They are all insects.
When the environment changes, organisms need to ______ or ____ to survive.
Answer:
adapt & evolve
Explanation:
When the environment changes, organisms need to adapt or evolve to survive.
How organisms adapt and survive to the changing environment?Natural selection is the process that results in this. Natural selection causes a species' nature to progressively change so that it can fit into the niche. A species can persist for a very long time before going extinct.
Environmental changes affect whether species are able to reproduce and survive, and this can result in population-level evolution. descent while being modified.
The process by which organisms adapt to their environment in order to increase their chances of surviving in that environment is known as evolutionary adaptation, or simply adaptation.
Learn more about organisms adaptation:
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Nigel lives near a chemical plant that spews sulfur dioxide into the air. At first, Nigel could not stand the smell of the gas in the air. However, after some time, he no longer even notices the presence of the gas. What kind of tolerance has his body developed? a behavioral tolerance b. a physiological tolerance a genetic tolerance d. a physical tolerance
Answer: Genetic Tolerance
The answer is Genetic Tolerance because the definition of it is "Genetic resistance (or genetic tolerance) refers to the ability of certain organisms to endure environmental conditions that are extremely stressful or lethal to non-adapted individuals of the same species ."
Answer:
B.) A physiological tolerance
Explanation:
Describe the structure of a virus.
Answer:
All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.
Explanation:
Pattipan squash are either white or yellow. In growing Pattipans, you notice that if you want to get yellow Pattipans at least one of the parents must be yellow. Which color is dominant?
Explain.
Answer:
yellow
Explanation:
Yea it's yellow cus yea it's yellow
BRAINLIEST PLEASE HELP ASAP NOW IMEDIATLY!!!!!!! ITS DUR RIGHT NOW!!!
How do minerals impact our daily lives? How are minerals used? Give three examples.
Answer:
Iron, manganese, selenium, and calcium all provide day-to-day nutrients that body needs in order to function. Foods that are full of micronutrients can help strengthen cells, fight against harmful viruses, and boost the immune system.
evolution of octopus
1Which of the following is NOT true of meiosis?
a. Meiosis results in identical daughter cells
b. Meiosis results in genetically unique cells
c. Meiosis results in gametes
d. Meiosis allows for sexual reproduction
Answer:
B
Explanation:
Meiosis is not a result in genetically unique cells
A student drew the following diagram of the orbits of several objects in space.
OE
What keeps object A in orbit around object B?
The force of gravity between objects A and B.
The force of gravity between objects A and C.
O The force of gravity between objects A and E.
The force of gravity between objects B and X.
i’ll give brainlest answer please
Answer:
b an x
Explanation:
Answer:
Explanation:
5
A cross between a chestnut horse (CC) and a white horse (WW) will yield a horse with a brown with white spotted coat pattern known as palomino (CW). What kind of dominance is this?
A. codominance
B. simple dominance
C. sex linked
Answer:
A. codominance
Explanation:
Humans and other animals regulate cell growth and cell division. In humans which of these types of cells generally do NOT divide after they haVE DEVELOPED
Answer:
skin cells and muscles divide
Explanation: common sense cse we grow
4. In the process of precipitation, water vapor in air cools and becomes water droplets that clump around particles in air to form clouds.
Answer:
I don't know what you ask but just think yes
Explanation:
