Answer:
the umbilical cord is considered both the physical and emotional attachment between mother and fetus.
Explanation:
this structure allows for the transfer of oxygen and nutrients from the maternal circulation into fetal circulation while simultaneously removing waste products from fetal circulation to be eliminated maternally.
Where can evidence come from
Answer:
Through the DNA samples
Help asap
describe one advantage prokaryotes have over eukaryotes
Explanation:
Prokaryotes are able to undergo mitosis for cell division, which is faster than meiosis in eukaryotes. This ensures the survival of their species.
Plzzzz Which of the following is a major determinant of the distribution pattern of a population? Habitat area, social interactions, the ages of the individuals, rate of population growth.
rate of population growth
Answer:
social interactions.
Explanation:
The _______ two objects are to each other, the stronger the force of gravity is between them.
Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled.
Explanation:
Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other.
Explanation:
In order for a theory to be considered valid it must be: inferred from personal interpretation observed at least one time repeatable recorded
Answer:
Repeatable
Explanation:
In order to consider a theory valid, it should be repeatable. The correct option is C.
What is a theory?A hypothesis or a set of ideas intended to explain something, especially one based on general principles unrelated to the thing to be explained is referred to as a theory.
A satisfactory theory is always repeatable.
Thus, the correct option is C.
For more details regarding a theory, visit:
https://brainly.com/question/14543764
#SPJ2
What type of cells are Merkel cells?
pressure sensing cells
immune defense cells
sweat producing cells
pain sensing cells
Answer:
Pressure sensing cells
Explanation:
Merkel cells provide information on pressure, position and deep static touch features such as shapes and edges. They are tactile sensors on the business of mechanotransduction. They encode surface features of touched objects into perception, but also have to do with proprioception.
Measurements made while observing a plant grow 3 cm over a two week period are called:
Answer:
Data Based on your observations
In a small population of Brazilian natives, the frequency of gene p, responsible for this disease, is 0.3. What must be the frequency of people who are heterozygous for this disease?
Answer:
Explanation:
According to hardy weinberg
p+q=1
p2+2pq+q2=1
p stands for the dominant genotype
q stands for recessive genotype
pq stands for population that are not homogenous i.e not the same
Given that p=0.3
P2=0.09
q=1-0.3= 0.7
q2=0.49
2pq= 2×0.3×0.7
=0.42
Therefore, the frequency of heterozygous population is 0.42
p2+2pq+q2
0.09+0.42+0.49 = 1
A flea and dog are an example of Choose... , because the flea irritates the dog's skin and feeds on its blood. Certain bacteria live in the digestive tract of humans, and their relationship is an example of Choose... because the bacteria help humans to break down the food they eat. Cattle egrets eat insects off the back of an elephant, which is an example of Choose... because the cattle egrets benefit without either harming or helping the elephants.
:
A flea and dog are an example of parasitism, because the flea irritates the dog's skin and feeds on its blood.
In a parasitic interaction, one organism benefits whereby the other one harmed. It is a positive - negative relationship. This interaction involves the interaction between the host and the parasite. The host is the bigger organism, here, the dog that is being harmed. The parasite is the flea causing the harm and benefiting from the relationship.
Certain bacteria live in the digestive tract of humans, and their relationship is an example of because mutualism the bacteria help humans to break down the food they eat.
In mutualism, the interaction is based on both organism deriving benefit from one another. Here, the bacteria gets its nourishment by breaking down human food. Human beings are able to digest the food better and are also nourished. A win-win situation is established.
Cattle egrets eat insects off the back of an elephant, which is an example of commensalism because the cattle egrets benefit without either harming or helping the elephants.
This relationship is known as commensalism in which one organism derives benefit. The other one derives no benefit and it is also not harmed in the process. The egrets feeds on the insects that are not harming the cattle.
Explanation:
All protists are classified into which domain?
Protista
Archaea
Bacteria
Eukarya
Answer:
The correct answer is Eukarya
Answer:
Your answer will be D (Eukarya)
Explanation:
I did the test
what does DNA stands for
Answer: deoxyribonucleic acid
Explanation:
Answer:
DNA for Deoxyribonucleic acid
Explanation:
DNA is the chemical name for the molecule that carries genetic instructions in all living things.
Deoxyribonucleic acid is a molecule made of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses.
This question is about the nutritional content of two foods, X and
Y. The diagram shows two burning foods, X and Y, being used to
increase the temperature of water. The temperature of the water
in each test tube is recorded at the start of the experiment, before
the food is set alight. It is recorded again at the end of the
experiment, after the food has stopped burning. The initial mass
of each food and the volume of water should be kept constant in
both experiments. Explain why these should be kept constant.
Explain why elements tend to form bonds in compounds. Then describe the three main types of bonds.
How are muscle cells in bone cells similar
Explanation:
Bones shape our body and help is to stand up straight. Muscles are attached to bones, they help us walk and run and smile. All the bones in our body make up our skeleton - from the top of our skill to the tips of our phalanges at the end of our toes. Muscles stretch across our bones and are attached with tendons.
Where should the biosphere label appear in the system model? Use reasoning to explain your answer.
Answer:
Biosphere is the one of the sphere of geological sphere of the earth such as geosphere, hydrosphere and atmosphere. It is deal with the interaction and existence of the living organisms.
In this model it can be seen that there are human, fishes, and vegetation of plants are living organisms so living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human) should be label as biosphere instead of atmosphere or with atmosphere.
The biosphere label should be appeared in the system model that contains geological sphere of the earth.
What is biosphere?
It is the one of the sphere that comprise of the geological sphere of the earth like the geosphere, hydrosphere and atmosphere. In this, there should be the existance and the interaction of the living organism.
Here in the given model, there should be the human, fished, etc should be labeled as the biosphere rather than the atmosphere or without the atmosphere.
Learn more about biosphere here: https://brainly.com/question/21631784
Can someone please help me
What happened to yellowstone national park when wolves disappeared ?
True or false about enzymes
Answer:i cant answer because you didn't really say anything
Explanation:
PLZZZ HELP ASAP THANKS :))))
A round red ball is an example of
Physical change
Chemical change
Physical property
Chemical property
Explain why?
Thank you greatly appreciated!
Answer:
I think it is Physical change
what is it called when water from the leaves go back into the atmosphere
which of the following are used by scientist to classify organisms
behavior
color
physical characteristics
DNA
embryo development
Answer:
Dna
Explanation:
explain how the biosphere facilities movement of water from the geosphere to the atomosphere.
Answer:
Explain how the biosphere facilitates movement of water from the geosphere to the atmosphere. The biosphere includes all living components of the Earth. ... Water from the plants is incorporated into the atmosphere through a process called transpiration, where water from the plant evaporates and enters the atmosphere.
Answer:
The biosphere includes all living components of the Earth. Plants, a part of the biosphere, pull water from the ground, part of the geosphere, for their use in the process of creating food. Water from the plants is incorporated into the atmosphere through a process called transpiration, where water from the plant evaporates and enters the atmosphere
Explanation:
edg 2020
anyone can help me?
Answer:
it makes it safe to consume I'm pretty sure.
Answer:
Third circle
Explanation:
Makes it safe
Which of the following is made of matter? A) Thunder B) Mountain C) Emotions D) Fire
Answer:
it should be mountain.
Explanation:
Answer:
mountains
Explanation:
it should be right
Which food is at a temperature that allows bacteria to grow well ? A) a roast at 125•F (52•c) B) hamburgers at 165•f (74•c) C) pork chops at 170•f (77•c) D) A steak at 180•f (82•c)
The correct answer is A) A roast at 125°F (52°C)
Explanation:
In general terms, bacteria thrive at warm temperatures; this means bacterial growth is lower at extremely hot/cold temperatures, but it is higher at warm or medium temperatures. Indeed, the ideal temperature for bacteria to develop and reproduce is between 4° C and 60°C. This implies from the options given the roast at 52°C represents an ideal temperature for the growth of bacteria. Also, other options include temperatures above 60°C, and therefore do not allow bacteria to grow well.
In DNA, the nitrogen bases pair up. The correct pairing is __________ with _________, and ________ with _________. *
Answer:
In DNA nitrogenous base pairs shows complementary base pairing. The complementary base of Guanine is the cytosine, while adenine pairs with thymine. Thus option E is the correct answer
Will GIVE BRAINLIEST!!!!!!!! Which statements describe dichotomous keys? Check all that apply. A dichotomous key uses characteristics to separate organisms from one another. A dichotomous key uses characteristics to separate organisms into two groups. Dichotomous keys use questions or statements to identify organisms. Dichotomous keys may be created with yes–no questions. Dichotomous keys may have three or more answers for each question or statement.
Answer:
1,3,4
Explanation:
A dichotomous key uses questions/or statements to help identify organisms, it can also use characteristics in it's questions such as yes and no statements to help separate organisms from one another.
What three (3) items makes up the majority of the garbage that we throw into our landfills? *
Answer:
Food was the largest component at about 22 percent. Plastics accounted for about 19 percent, paper and paperboard made up about 13 percent
Explanation:
I used Google So if this is a write out make sure you use your own words
Is the widely accepted scientific theory that characteristics of a population may change over time, and that current species may gradually give rise to new species.
Answer:
Evolution theory
Explanation:
The evolution theory was developed by Darwin and it is a generally accepted theory that deals with gradual changes in the characteristics of organisms due to their quests to adapt to continuous changes in the environment.
As the environment of organisms keeps changing, the population of the organism keeps adjusting. Individuals that are able to adjust to the changes survive and are able to reproduce while the weak ones gradually die off from the population.
Hence, the entire characteristics of the population is changed with time as a result. The continuous changes sometimes lead to some species within the population giving rise to a new species entirely.
I suck at biology can someone help me answer this question???
Answer:
I believe that the answer is False.
Explanation:
According to the pbs site "Of all species that have existed on Earth, 99.9 percent are now extinct."