Answer:Selective predation can lead to natural selection in prey populations and may alleviate competition among surviving individuals. The processes of selection and competition can have substantial effects on prey population dynamics, but are rarely studied simultaneously.
Explanation:hope its help
where are your taste buds?
Answer:
tongue is the answer....
Trees maintain the balance between gases in the air, removing carbon dioxide from the air and releasing oxygen.
Please select the best answer from the choices provided
T
F
False, due to pollution and greenhouse gasses, although trees do absorb Co2, the air is still not ballenced. Trees help, but not enough.
Answer:
True statement
Explanation:
The table lists several examples of evolution.
1. evolution of tooth buds in birds
2. evolution of sequences in DNA and RNA
3. evolution of bipedalism in Homo sapiens
4. evolution of molecular oxygen for living beings
Which examples characterize organic evolution?
Answer:
evolution of bipedalism in homo sapiens
Which direction do molecules move across a membrane based on concentrations inside and out of the cell?
Help asap!!! marking brainliest!
Answer:
D. Bacteria does not depend on a host. Bacteria are free-living cells.
change active voice to passive
NONSENSE REPORT
please answer AsAp
Answer:
We've just attended a birthday party
you locked the door
Explanation:
English lesson
How is vaccination effective in reducing infectious diseases? Select all that apply.
Answer:
Explanation:
Question 6 is A because it is only that particular community and only a certain amount will most likely not have the disease
Question 5 is A, C, and D because they all explain why the vaccine is effective and how it might help out the community
please help!!! marking brainleist
Which best describes the structure of a DNA molecule?
O A. Two strands of DNA joined by nitrogenous bases
O B. One long strand of amino acids
O C. Two strands of amino acids joined by nucleic acids
D. One long strand of nucleic acids

Answer:
A. two strands of DNA joined by nitrogenous bases.
Explanation:
Energy efficiency = useful energy output/total energy input x 100(%)
If a power plant uses 100 units of energy to create electricity and the output is 5 units, where does the 95% of the energy input go?
A: Lost as heat
B: Lost as gas
C: Escapes the system as potential energy
Answer:
no
Explanation:
No, a real machine can't have an efficiency of 100%. An efficiency of 100% means that there is no loss and the output energy (or work) of the machine is equal to input energy (or work). In real machines, there is always some loss of energy to overcome friction and air resistance
Is this statement true or false? In the respiratory system, oxygen enters the mouth and nose, and travels down the trachea.
Answer:
True
you breathe oxygen through your nose/mouth then it travels down your trachea to your lungs through your heart into your bloodstream to everywhere else in your body.
I hope this helps
Explanation:
Answer:
true
Explanation:
it does go through the trachea good luck
3. If there are 60 cardinals in a 4 square km area, what is the population density?
60 cardinals per square kilometer
60 cardinals
15 cardinals per square kilometer
240 cardinals
Answer:
15 cardinals per square kilometer
Explanation:
60 are total in 4 square kilometers
To find how many there are in only 1 square kilometer divide 60/4
and you get 15 as a result
What would be the answers for 33-34?
33. Look at the following strand. Is this. Chromosome or vene mutation
34. Look at the following strand. What type of mutation?
Please help
Answer:
chromosome
or venue mutations
How do you find the number of electrons for any atom?
Answer:
To find the number of electrons an atom has, start by looking up the element you're working with on the periodic table and locating its atomic number, which will be in the upper left-hand corner of the square. Then, identify the charge of the ion, which will be written as a superscript to the right of the element.
Hope this helps!
Answer:
the atomic number of an element is simpliy
the amount of electron present in an atom
Help? ASAP pleaseeeeeeee
Answer:
Homologous structures define similarly structured body parts among organisms that serve different functions. They show common ancestry; an example would be a human arm and horse leg (both made of bone, but different uses).
Analogous structures define differently structured body parts that serve the same function. They do NOT show common ancestry. An example would be a whale fin & dolphin fin; one is made of bone and the other cartilage, but they are both used to swim).
50 points
Look at the food web shown below. which organisms get energy from producers?
a. squid
b. zooplankton
c. sperm whales
d. phytoplankton
Trophic webs involve energy transference through different organisms occupying different levels. These are producers, consumers (herbivores and carnivores), and decomposers. Option B. Zooplankton
What is a trophic web?The trophic web is the interaction between different organisms involving the transference of energy when some of them feed on the other ones.
The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
• The first link corresponds to a producer organism -autotroph-.
• The following links are the consumers -heterotrophs-: herbivores and carnivores.
• The last links are the decomposers that degrade organic matter from dead organisms.
Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.
Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
In this trophic web, we can see that the producer is phytoplancton (first link).
Phytoplancton is eaten by zooplankton and shrimp (second link). They are primary consumers that feed on phytoplancton.
The correct answer is b. zooplankton.
a. squid ⇒ They get energy from shrimp
b. zooplankton ⇒ They get energy from phytoplankton
c. sperm whales ⇒ they get energy from squids
d. phytoplankton ⇒ they get energy from sunlingh.
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Identify the parts used in an electric circuit.
Answer:
Every circuit is comprised of three major components:
a conductive "path," such as wire, or printed etches on a circuit board;
a "source" of electrical power, such as a battery or household wall outlet, and,
a "load" that needs electrical power to operate, such as a lamp.
Explanation:
Why Is Water Wet ?
Answer me fast
3During menstruation, the body sheds extra tissue from:
A Ovaries
B Fallopian tubes
C Fertilized eggs
D The uterus
The mother is homozygous recessive and the father is homozygous dominant. Using the letter m for magical powers, what is the RATIO for their offspring?
Look at the table you filled in above. How does the numbers for how much the snakes are consumed compare to how much these predators consume other organisms in the habitat (particularly mammals)? What could be a reason for the differences?
The number of organisms decreases on movement from producers to consumers in a food chain. This happens due to decreased energy levels at higher trophic levels.
What is a food chain?Food chain is the sequence of matter and energy transfers as food from one organism to another.
Food chains interconnect locally into a food web as most organisms consume more than one type of animal or plant.
The number of organisms decreases on movement from producers to consumers in a food chain. This happens due to decreased energy levels at higher trophic levels.
Thus, it can be concluded that this is the main reason behind the number of snakes consumed as compared to other organisms.
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When should most agricultural crops be fertilized?
A In the spring
B. In the fall
C. In midsummer
D. Throughout the growing season
Answer:
A
Explanation:
in the spring
Fertilizer is most effective when used on plants at their peak growing cycle.
Griffith injected with two different strains of bacteria in
his search for the genetic material.
Answer:
a. Mice
Explanation:
mice was used by Griffith in his investigation
How deep is the root system of a giant sequoia?
4 meters (13 feet)
20 meters (60 feet)
40 meters (130 feet)
80 meters (260 feet)
The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil.
Gametes have the chromosome number of the parent cell.
twice half
Answer:
When meisosis occurs, a parent cell creates 4 gamete cells with 23 chromosomes in each.
Human blood is considered a multiple allele trait meaning an individual can have either (A,
B, AB, or O). Which phenotypic probability would be expected between a cross of a male
with Type O and woman with Type AB?
a. 50% Type A, 50% Type B
. b. 50% Type A, 50% Type O
50% Type AB, 50% Type 0
d. 50% Type B, 50% Type O
c.
Answer:
A. 50% Type A, 50% Type B
Explanation:
To answer this we can draw a punnett square.
Since o if recessive, it can only be expressed if it is not masked by a dominant allele. Therefore the male with type O blood has the genotype oo. A and B are co-dominant, so the woman has genotype AB.
_ | A | B
o |Ao | Bo
o | Ao | Bo
Since A and B are dominant alleles, they will mask the o allele. Therefore genotype Ao will be a Type A phenotype, and genotype Bo will be a Type B phenotype.
Therefore, the phenotypic probabilities for this cross is 50% Type A, 50% Type B. Hence, the answer is A.
Hope this helped!
Describe one advantage prokaryotes cells have over eukaryotic cells
Prokaryotes and eukaryotes differ in the presence of the nucleus and the organelles. Prokaryotes are small in size and can easily reproduce and adapt.
What are prokaryotes?Prokaryotes are primitive simple cells that are characterized by single cells with no distinct nucleus and membrane-bounded organelles. Cyanobacteria and bacteria are examples of prokaryotes.
The simple structure of the prokaryotes makes them adapt to environmental changes faster than the complex eukaryotic cell. They have a quick reproduction rate and short life cycles, unlike plants and animals.
The simple and small system of the prokaryotic cell allows the movement and diffusion of the ions and molecules easily. They are extremophiles and can survive harsh environments.
Therefore, small and simple prokaryotic cells are advantageous over eukaryotic cells.
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Respond to the posts indicating your agreement or disagreement with their position and why. Feel free to bring in additional references to these reply posts.
post only irrelevent questions~
Where is the 3' end for the bottom strand of this DNA molecule? (A, B, C or D?)
What is the principle of base pairing
Explanation:
in dna cytosine pairs with guanine and adenine pairs with thymine add on rna adenine pairs with uracil
Explain the ruminant Process of digestion of animal farm animal?
