Answer:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes.
Explanation:
Answer:
To transport materials throughout the body
Explanation:
4. What is the name of the membrane in blood cells that allows for certain
substances to pass through it, but not others? *
Cell wall.
Semipermeable membrane.
Cell membrane.
plasma membrane
Answer:
It is Plasma Membranes.
Answer: Plasma membrane
Explanation:
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What are some characteristics that protists and fungi both have that make them eukaryotes?
Answer:
They have a nucleus and other membrane bound organelles.
Explanation:
hoped this helped :)
The characteristics that protists and fungi both have that make them eukaryotes is the possession of a membrane bound nucleus and other organelles.
EUKARYOTES:
Eukaryotic cells are cells that possess a membrane-bound nucleus to house their genetic material (DNA). Eukaryotes also possess other membrane bound organelles like mitochondria, golgi apparatus etc. This feature particularly differentiates them from prokaryotic cells. Eukaryotic organisms include plants, animals, fungi, some protists etc. Therefore, it can be said that the possession of a membrane bound nucleus and other organelles is the characteristics that makes fungi and protists be considered eukaryotes.Learn more: https://brainly.com/question/21196976?referrer=searchResults
Which is an effect of lower levels of solar radiation striking Earth?
Answer:
B) decreased rates of photosynthesis
Explanation:
Plants, phytoplankton, algae, and other microorganisms photosynthesize using energy in the form of solar radiation. Photosynthesis is a chemical process that's integral to these organisms, which are called producers.
They combine light energy from solar water and carbon dioxide, in a complex process that produces chemical energy in the form of glucose.
[tex]6CO_{2} + 6H_{2} O + light ---> C_{6}H_{12}O_{6}[/tex][tex]+6O_{2}[/tex]
Photosynthesis is a rate-limited reaction; it depends on various factors including carbon dioxide availability and light intensity. When light is limited, the rate of photosynthesis decreases due to its slowing effect on the light-dependent reaction in photosynthesis, occurring in the chlorophyll.
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Question: how does gender affect reaction time?
Answer:
it will be increased of time
Help me please I need help
Answer:
D
Explanation:
Answer:
DNA
Explanation:
Common knowledge
A scientific theory
A)is like a guess
B)can never be disproven
C)has not been disproven, but could be
D)has been proven 100%
Answer:
the answer should be c
Explanation:
Answer:
it is c.
Explanation:
because it has never been disproven i know alot because in science I am studing it
Which parts of the water cycle are caused by the force of gravity?
Answer:
Participation.
Explanation:
Both are moving downwards. Participation falls from the sky.
Mitosis is an important process for maintaining homeostasis in organisms. Which of the
statements below does NOT reflect a function of mitosis.
A. Contributing to the growth of organisms.
B. Responding to the loss of cells due to natural cell death.
C. O Producing gametes for sexual reproductive purposes.
D. Being the process for asexual reproduction in single celled organisms.
Answer:
C. Producing gametes for sexual reproductive purposes
Answer:
C. Producing gametes for sexual reproductive purposes.
What is the role of an enzyme in a reaction with the reaction ? would the reaction happen without an enzyme?
Answer:
Enzymes are not used up in a chemical reaction. Usually, the enzyme will “reset” and be ready to use in another reaction. This is due to the fact that enzymes are proteins, and their shape is what they use in a chemical reaction.
Explanation:
Enzymes serve a similar purpose for chemical reactions in an organism's body, which is to lower the amount of "activation energy" needed for a particular chemical reaction to occur. Without enzymes, many chemical reactions would occur at a much slower rate because the amount of activation energy required would be far greater.
what are two major roles that protists play in aquatic food chains
Answer:
Explanation:
Photosynthetic protists serve as producers of nutrition for other organisms.
Protists like zooxanthellae have a symbiotic relationship with coral reefs; the protists act as a food source for coral and the coral provides shelter and compounds for photosynthesis for the protists.
Imagine you are studying a population of finches on one of the Galápagos Islands. You have been recording many of the birds' physical traits, including the length of both wings. You observe that for 80% of individuals measured, the length of the left wing is not significantly different from the length of the right wing (in other words, they are symmetrical). But for about 20% of birds measured, the wing lengths are asymmetrical. This distribution is true from generation to generation. Suddenly, a rare 5-day windstorm takes over the island. After the storm, you spend the next several days netting each bird on the island that survived the storm. You discover that 85% of the birds with symmetrical wings survived the storm, whereas only 5% of the birds with asymmetrical wings did.
a. Propose a hypothesis to explain this observation.
b. If such storms become increasingly common due to changes in climate, how might you expect the population to change over time with respect to wing symmetry? The distribution of symmetrical to asymmetrical will change so that close to 100% of birds will have symmetrical wingspans.
Answer:
a) The change in the character of an organism relies upon the ability of the adaption on the base of the external change or the environment change, "An organism that is not able to adapt accordingly would not survive and eliminated from the population."
b) In the given case, Symmetric wings are far more suitable for the survivorship as it provides better flight than the organism with asymmetric wings, it is also given that there is 20% of the population have asymmetric wings.
After the storm which is selection pressure, there is the elimination of the entire bird population with asymmetrical wings from the ecosystem so the final frequency would be 100% of the entire population with symmetrical wings.
Natural selection benefits the phenotype that increases the fitness. a) Symetrical wings increase the fitness of finches because they are better to face selective pressures. b) natural selection will favor symmetrical wings.
-------------------------------------
a) Hypothesis:
Symmetrical wings increase the fitness of finches because these type of wings are better to face selective pressures like severe windstorms.
b) If such storms become increasingly common with time, natural selection will favor symmetrical wings by increasing its frequency in the population, while animals with asymetrical wings will decrease to near cero.
Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population. It is the result of the phenotype-environment interaction which determines gene destiny in space and time. Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation. Aptitude (or fitness) is reflected by the phenotype that results in the survival, fertility, and capability of having a mate. Adaptations can be correlated to environmental factors or selective pressures applied by other organisms or habitats. The selective agent is the environmental trait that determines the differential survival of the phenotypic classes. The environment influences the probability that each genotype passes its gametes to the next generation.So in this example,
⇒ The strong storms are acting as selective pressures.
⇒ This selective pressure is modeling the phenotype of finches.
⇒ Natural selection favors the phenotype that performs better when facing storms.
⇒ Symmetrical wings are the phenotype that better suits and increases the animal's fitness.
⇒ Hence, natural selection favors this phenotype over asymmetrical wings.
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DNA is to T as RNA is to ?
Answer:
U (Uracil)
Explanation:
DNA is to Thymine
RNA is to Uracil
The simple and direct inter relationships is called
A succession
D, food chain
B, Niche
C, food web
Answer:
food chian
Explanation:
Which type of mutation results in a frameshift
mutation?
substitution
insertion
deletion
point mutation
Answer:
Insertion and deletion result in a frameshift mutation. Frameshift mutations caused by "indel" mutations, meaning insertion or deletion mutations. These mutations shift the way the DNA is read. A frameshift mutation can throw off all of the nucleotide that follow in a DNA sequence, making them particularly likely to lead to significant consequences.
Scientific evidence shows that modern dogs, wolves, and foxes all have a common ancestor. Further evidence shows that dogs are more closely related to wolves than to fixes. Which of the following observations provides the BEST evidence that dogs are more closely related to wolves than to foxes? *
A. The diets of dogs and wolves are more similar that the diets of dogs and foxes.
B. The lifespans of dogs and wolves are more similar than the lifespans of dogs and foxes.
C. The genetic sequences (DNA) of dogs and wolves are more similar than the genetic sequences of dogs and foxes.
D. The body sizes of dogs and wolves are more similar than the body sizes of dogs and foxes.
The observation that provides the best evidence that dogs are more related to wolves than to foxes is the DNA sequence of dogs and wolves being more similar than that of dogs and foxes.
The DNA is a molecule that stores the genetic information of organisms. Thus, closely related organisms have similar information on their DNA, usually indicated by similar nucleotide sequences.
Therefore, if dogs and wolves are more closely related in ancestry than dogs and foxes, the DNA sequence of dogs and wolves will be more similar than the DNA sequence of dogs and foxes.
More on DNA and common ancestry can be found here: https://brainly.com/question/1041924?referrer=searchResults
What structure is the least complex
Answer:
In order, from least complex to most complex:
cells.
tissues.
organs.
organ systems.
organism.
Explanation:
Are fish gills a Physiological adaptation or a Structural Adaptation?
Answer:
yes
Explanation:
Define concentration gradient.
Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Explanation:
Hope this helps c:
Dr. Mrs. Brown has Rh+ blood, but her father is Rh-. What must her full blood type genotype be?
Answer:
Her full blood type genotype is Dd.
Explanation:
Rh (Rhesus) factor is a type of protein found on the outside of red blood cells. It is genetically inherited. An individual that has this protein is Rh-positive, and the one that doesn't is Rh-negative. The Rh-positive gene is dominant, while the Rh-negative gene is recessive. This means that a person must inherit at least one dominant (D) allele from their parents in order to be Rh-positive.
If Dr. Mrs. Brown is Rh-positive, and her father is Rh-negative, her mother must be Rh-positive (DD or Dd), as well. Her father has two recessive alleles (dd), which means that Dr. Mrs. Brown must have one recessive allele. Since she is Rh-positive, she must have one dominant allele. This makes her genotype Dd.
Complete the passage to describe the link between photosynthesis and respiration.
The reactants for cellular respiration are the ____
for photosynthesis. The products of cellular respiration are the ____
of photosynthesis.
reactants:Oxygen and glucose
products: Carbon dioxide, water, and ATP
Answer:
The first blank is products.
The second blank is reactants.
Which techology allowed scientists to discover the first deep ocean hydrothermal vents?
A. a piloted deep clean vessel
B. ROV (remotely operated vessel)
C. SCUBA gear
D. satelites
Answer:
I hate this problem
Explanation:
It is v
asteroid, meteorite, craton, Canadian shield, differentiation, microcontinent, Precambrian shield, banded-iron formation, stromatolite, Ediacaran Biota
1)fossils of various multicellular organisms from about 630 Mya
2)the top of a craton exposed at Earth's surface
3)Metallic or silica rich object that bombard early Earth, generating heat energy
4)a small fragment of an orbiting body that has fallen to Earth; generating heat; does not completely burn up in Earth's atmosphere and strikes Earth's surface; sometimes causing an impact crater
5)a small fragment of granite rich crust formed during the Archean
6)name given to the Precambrian shield in North America because much of it is exposed in Canada
7)Alternating bands of iron oxide and chart; and cherty; an iron-poor sediment rock
8)continental core formed from Archean or Proterozoic microcontinents; deepest and most stable part of a continent
9)process in which a planet becomes internally zoned, with the heavy materials inking toward the center and the lighter materials accumulating near its surface
10)large mat of mound composed of billions of photosynthesizing cyanobacteria that dominated shallow oceans during the Proterozonic
Answer:
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Name 2 medications that are available in case the person suffers from a sleep disorder.
Answer:
Explanation:
2 medications that can be available if a person suffered from sleep disorder is
Zelaplon And triazolam
Range of motion is the distance an object can travel when separated from another object. Please select the best answer from the choices provided. OT О F
Answer:
False
Explanation:
Answer:
F
Explanation:
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What type of conditions might effect crossing over in Sordaria?
Answer:
To observe crossing over in Sordaria, one must make hybrids between wild-type and mutant strains of Sordaria. ... When mycelia of these two different strains come together and undergo meiosis and then mitosis, the asci that develop will contain four black ascospores and four tan ascospores.
Explanation:
Can someone help me with this question pls (8th grade science)
Answer:
C
Explanation:
The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.
Answer: c
Explanation: if there is no plate movement that means that there is a balanced force there is nothing that is disrupting it. but if there's an earthquake in that means that there are unbalanced forces in that they cause an earthquake. a force is balanced if the two individual forces are of equal magnitude and of the opposite direction. And an object is said to be acted upon by an unbalanced force when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
True or false: the age of invertebrates in the Cenozoic era
Answer:
True
Explanation:
Answer:
true got it right
Explanation:
The epidermis had a waxy coating that is called _____?
Answer:
cuticle!
Explanation:
A bike rider falls off their bike and scrapes his knee on the pavement.
Which life function allows the injury to go back to normal?
Answer:
Research has shown in people with knee osteoarthritis, low-intensity cycling is as effective as high-intensity cycling in improving function and gait, decreasing pain, and boosting aerobic fitness
Explanation:
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Anatomy: If an agonist produces flexion, the primary action of the antagonist will be...
A. Extension
B. Abduction
C. Pronation
D. Adduction
In need of help!!!!
Answer:
If an agonist muscle produces a flexion, the primary action of the antagonist muscle will be extension.
Explanation:
Muscles are the organs of the musculoskeletal system that, through their contraction and relaxation, allow body movements.
Due to the location of each muscle in relation to the bone and joint, they can perform diverse movements, there being the so-called agonist and antagonist muscles for each movement.
If an agonist muscle makes a movement, the antagonist muscle or muscles will make the opposite movement, so the extension corresponds to the antagonistic action of the flexion.
The other options are not correct because:
B y D. Abduction and adduction are antagonistic movements, not related to flexion.
C. The antagonistic movement of pronation is supination.