Answer: The answer is A.
The embryonic stage where the embryo cells are arranged into a hallow ball is called
A) Morula
B) Blastula
C) Grastula
D) Fetus
PLEASE NO TIME WAISTERS
Answer:
blastula
Explanation:
Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators. Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense
Answer:
The correct answer is - Nervous and digestive systems.
Explanation:
Coracias garrulus is a bluebird that has a unique defense mechanism in which it senses the danger or threat they vomit and cover themselves with their foul-smelling orange-yellow vomit.
The orange vomit or liquid store in the digestive system of the bird and when the bird's sense threatens it activates its nervous system which then intern sends a signal to the digestive system and the urge of vomit on its young ones and cover in that.
The nervous and digestive systems are the body systems that alert the young bird to danger and help produce the vomit it uses as a defense.
The nervous system is a body system by which animals coordinate actions and sensory information such as alert signals.The nervous system transmits signals to different parts of the body including the digestive system.The digestive system is the body system that acts to digest foods, having reflexes that allow to eliminate them by vomiting.In conclusion, the nervous and digestive systems are the body systems that alert the young bird to danger and help produce the vomit it uses as a defense.
Learn more in:
https://brainly.com/question/379792
Who first identified DNA?
Answer:
Johann Friedrich Miescher
Explanation:
Give an example of how using soil, trees, or air might result in a tradeoff
Answer:
As trees grow, they help stop climate change by removing carbon dioxide from the air, storing carbon in the trees and soil, and releasing oxygen into the atmosphere. Trees provide many benefits to us, every day.Explanation:
sorry if that doesnt help but hopefuly it does:)
By using soil, trees and air will result in a trade off due to increasing in one factor and decreasing in another factor.
Using soil, trees and air result in a tradeoff by using the carbondioxide gas in the atmosphere. The trees increase in high and vegetative growth by decreasing the carbondioxide gas in the atmosphere. In tradeoff, one thing increases, and the another must decrease.
So if the trees grow in size the concentration of carbondioxide gas decreases due to the process of photosynthesis by the tree so we can conclude that using soil, trees and air will result in a trade off due to increasing in one factor and decreasing in another factor.
Learn more: https://brainly.com/question/20728499
✨PLEASE HELP✨DUE SOON✨
Answer:
50%
Explanation:
Type O is canccelled out, so there is a 50% chance of the baby getting type A blood and a 50% chance of the baby geting type B blood.
A change in the nucleotide sequence
produced during DNA replication
DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.
I am a nucleic acid.
ONLY RNA
ONLY DNA
BOTH DNA AND RNA
Answer:
both
Explanation:
both classes are na's
Choose all the answers that apply.
Which of the following would be carried by suspension?
clay
large rocks
small pebbles
silt
sand
Answer:
clay
slit
Explanation:
4. The size of a population in an ecosystem is determined by
a. Biotic factors such as the food available and the competition for that food
b. The carrying capacity of the ecosystem for that species
c. Abiotic factors such as space, water and climate
d. All of the above
The size of a population of organism in an ecosystem is determined by the following:
Biotic factors such as the food available and the competition for that foodThe carrying capacity of the ecosystem for that speciesAbiotic factors such as space, water and climateWhat is population of an organism?The population of an organism refers to the collection of organisms of a particular species, sharing a particular characteristic of interest, most often that of living in a given area.
Several factors can contribute to the increase or decrease in the population of an organism. These factors include;
Biotic or living factors such as the food available and the competition for that foodThe carrying capacity of the ecosystem for that species, which is the number of individuals of a particular species that an environment can support.Abiotic factors such as space, water and climateLearn more about population at: https://brainly.com/question/16138725
#SPJ2
6CO2 + 6H20 602 + C6H1206
Molecular Energy in Photosynthesis
Name of
Molecule
Chemical
Formula
Amount of Energy per
Molecule (in kJ per mole)
Carbon dioxide
CO2
799
Water
H20
467
Oxygen
O2
495
Glucose
C6H1206
9,467
Which statement correctly describes the flow of energy in photosynthesis?
A Photosynthesis releases energy when carbon dioxide and water combine to form glucose molecules.
B Photosynthesis releases energy when the reactants rearrange and form the bonds in the products,
Photosynthesis stores energy because energy is released when glucose is formed from carbon dioxide and water.
D Photosynthesis stores energy because more energy is stored in glucose than it is in carbon dioxide or water.
Answer:
Photosynthsis stores energy because more energy is stored in glucose than it is in carbon dioxide or water is the correct answer.
Explanation:
HEELP ASAP I WILL GIVE BRAINLIEST!! IS THE ANSWER B?
Coal continues to be widely used in the US because
a) coal reserves are not found in environmentally safe areas
b) the country’s future supply of coal will ever stable for many generations
c) coal contains very few contaminants
Explain what happens when a population experiences uncontrolled exponential growth.
Answer:
If the population ever exceeds its carrying capacity, then growth will be negative until the population shrinks back to carrying capacity or lower. Some disadvantages of having uncontrolled are the rapid urbanization associated with the population explosion and industrialization has created an imbalance in the ecology of the Southeast Region.
Explanation:
Answer:
When a population experiences uncontrolled exponential growth, the population will increase uncontrollably, leading to more resources being used and reaching the carrying capacity sooner.
Explanation:
Suggest two specific reasons why determining the cause of death can sometimes be difficult.
Answer:
1. The person has been dead for a while so the body is old.( Decomposed)
2. The manner or cause of death (injuries)
Explanation:
1.
Determining the cause of death could be difficult if the person has been dead for sometime. This is going to make the body to be more decomposed since the body has become old.
2.
Another reason is if the cause of death is from an accident and the dead person sustained great injuries. The condition of the body would be poor and this is going to make examination difficult.
If animal droppings spread seeds then when spreads it also then which spreads it faster?
A. Animal droppings.
B. Wind.
Answer: Animal droppings
Explanation:
Natural selection causes what to occur?
1. evolution
2. survival of the fittest
The law of independent assortment
3. Mendel's law of segregation
4. genetic drift
Answer:
(1.) Natural selection causes evolution to occur.
Explanation:
Over time, the naturally occurring variation within a population that arise from mutations, alter in frequency. Some of these variants or traits, may confer advantages to certain organisms, allowing them to reproduce and pass on genes more successfully. These traits become fixed within the population, and eventually the individuals evolve to form a species.
Natural selection, acts on evolution, for or against traits. It ensures that individuals with traits well-suited to their environments and reproductive fitness survive.
Answer:
1. evolution
Explanation:
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
This is an EMERGENCY please help and answer the in order please help i will also mark brainlliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
(This is 7th grade science).
Answer:
Explanation:
skin: y, n, n, n , animal
neurn: y, y, n, n , nonliving
sand: n,n,n,n nonliving
maple leaf y, y, y, y, plant
blood: y, y,n,n animal
e.coil: y, n, n, n bacterial
root hair: y, y, n, n, animal
Burning oil and coal adds ______ to the atmosphere.
Answer:
carbon dioxide
Explanation:
because when these things burn they produce many harmful gases which harm the environment and cause pollution
Down syndrome is one of the most common genetic disorders, occurring in 1 out of 800 births. What percentage of the population would have Down syndrome?
True or false All organisms in a species will share the same physical characteristics.
Answer:
True.
Explanation:
According to the passage, what causes mutations during protein synthesis?
A. A wrong base becomes a permanent part of a new DNA sequence.
B. Most mutations happen spontaneously as DNA replicates itself.
C. A great many mutations occur due to chemicals in the environment.
D. Mutations do not occur during the process of protein synthesis.
Answer:
d.
Explanation:
a-t base pairs in a dna double helixare chemically distinct from G-C base pairs. form three hydrogen bonds with each other. are more heat stable than G-C base pairs. are not accessible to DNA binding proteins. are of a different length than G-C base pairs.
Answer:
A-T base pairs in a DNI double helix are chemically distinct from G-C base pairs.
Explanation:
Nitrogenated bases that form nucleic acids correspond to purines and pyrimidines. Adenine and guanine derive from purines, while Thymine and Citocine derive from Pyrimidines.
In the DNA molecule, Adenine (Purine) always form pairs with Timine (Pyrimidine), while Guanine (Purin) form pairs with Cytosine. Two hydrogen bonds unite the pair A-T, while three of them unite the pair G-C.
The structure of these bases is different hence, the chemical structure of the pairs is also different.
Help meeeeeeee I have a test soon
Answer:
D
Explanation:
Because... Almost all animals and humans are obligate aerobes that require oxygen for respiration, whereas anaerobic yeast is an example of facilitative anaerobe bacteria. Individual human cells are also facilitative anaerobes: They switch to lactic acid fermentation if oxygen is not available.
Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles, and the constant influx of water from the outside environment tells you that the environment
Answer:
is hypotonic to the protozoans
Explanation:
The constant influx of water from the outside environment of the cell tells that the environment is hypotonic to the cell.
A hypotonic environment is one with a lower solute concentration than the cytosol. Hence, water osmotically moves from the environment into the cells of the protozoans. The water needs to constantly be removed from the cells, otherwise, they will become turgid and lyse away their contents.
Which term describes a single female arctic fox?
Biome describes a single female arctic fox, i guess
Answer:
biome.
Explanation:
By :Organizational Hierarchy
Read my bio
2
The scientific names Ursus maritimus, Ursus arctos and Ursus americanus all have a common
name meaning...
They are closely related
They are distantly related
They have a distant but common ancestors
ОО
They are not related at all
Which are advantages of using renewable resources? Choose all that apply
Answer:
Generating energy
Explanation:
that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution.
Diversifying energy supply and reducing dependence on imported fuels
Students conducted an experiment observing the motion of beetles walking along the ground. During the experiment, one of the beetles
moved quickly away from the starting point, stopped for a short time then returned to the starting point at a slower speed.
Which graph shows the motion of the beetle observed in the experiment?
Position
Position
Time
Time
Position
ca
Position
Time
Time
Please hurry
Answer:
where is the graph???????
help please that would be great
Answer:
B or E
Explanation:
B and E are selected by man-kind not nature itself.
What is succession and what are the steps to succession? Why is it important?
Answer: Succession Planning is essentially planning for and executing smooth transitions of leadership positions. This includes recruiting new talent, executive search, selection assessments, onboarding the new leader, and successfully transitioning the new leader in and the old leader out.
Why is air circulation important for photosynthesis to function properly?