Answer:
A decreased diameter means more of the blood contacts the vessel wall, and resistance increases, subsequently decreasing flow. The influence of lumen diameter on resistance is dramatic: A slight increase or decrease in diameter causes a huge decrease or increase in resistance.
write the general characteristics of bryophytes? 5mark
Answer:
Plants occur in dump and shaded areas
They lack vegetative structure
The plant body is prostrate or erect
They lack vascular system
A DNA strand has the following bases: AGACCATA. What are the bases on its complementary strand?
Answer:
1 AAGCCA
2 ACCGAA
3 TTCGGT
4 CCATTC
Please helppppppp!!!!
Which mutation scenario will always lead to natural selection?(1 point) A. a mutation causes a specific advantage within the population B. a mutation causes an inactivated gene to be reactivated C. a mutation causes a specific variation within the population D. a mutation causes a gene to become inactivated
A mutation scenario that will lead to natural selection is one that causes a specific variation within the population. Thus, the correct option for this question is C.
What is Mutation?A mutation may be defined as a type of process that significantly involves sudden, stable, and inheritable changes in the genetic material of an organism. The organism that undergoes mutation is called a mutant. The agent of mutation is called mutagen.
According to the context of this question, the process of mutation never causes a positive influence on the organisms, but with respect to time organisms become adapted or habitual.
A Mutation may be random and spontaneous so, it does not always involve an inactivated gene being reactivated. It sometimes involves the introduction of a new gene that facilitates specific functions.
Therefore, a mutation causes a specific variation within the population is a mutation scenario that will lead to natural selection. Thus, the correct option for this question is C.
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What's the answer please??????????!!!!!
One of the old is rock for missions identified on earth is found on the shoreline of Hudson Bay in Canada. This rock forms 4.28 billion years ago. What information does the scientist need to most accurately determine the age of a rock?
Which type of wetland includes a mixture of salt water and fresh water?
bogs
swamps
inland marshes
coastal wetlands
Answer:
Confirming
Explanation:
How does flooding affect the soil layer of the
ecosystem?
Answer:
Changes from flooded to drained conditions in soils stimulate changes from aquatic to terrestrial vegetation and decrease the algal contribution to total primary production. Drainage of organic soils then has the effect of removing a source of net primary production (algae) and carbon sequestration
Explanation:
Use different words then I did
Answer:
Soil will become damp and will thrive in water
Please help fast!!!!5. Challenge: A food web is a more complicated
diagram that shows the feeding relationships of all
the organisms in the ecosystem. As with a food
chain, an arrow pointing from species A to
species B indicates species B gets its energy
from species A.
Nassau
grouper
Yellowtail
snapper
Hawksbill
sea turtle
Long-spined
sea urchin
In the diagram at right, create a food web by
drawing arrows ( - ) to show which organisms
obtain energy from others. Hand draw or click on
the image and select ED
Queen
angelfish
Stoplight
parrottish
Sponges
Star
coral
Staghorn
coral
Plankton
Symbiotic algae
Algae
Answer: there is no diagram and if you could explain that would be helpful
Explanation: but I can do some yellow tail snapper(a) go’s to a Nassau grouper(b). long spine sea urchin(a) goes to hawks bill seaturtle(b)
Can anyone help me with these please
Answer:
6. Current = 8.33 Amps
7. Energy = 1200 Joules
Explanation:
Given the following data;
6. Power = 1000 Watts
Voltage = 120 Volts
To find the current flowing through;
Power = current * voltage
1000 = current * 120
Current = 1000/120
Current = 8.33 Amps
7. Power = 900 Watts
Time = 45 minutes to hours = 45/60 = 0.75 hours
To find the energy consumption;
Energy = power/time
Energy = 900/0.75
Energy = 1200 Joules
is the transforming factor made of proteins?
Answer: Understand about transformation as part of this. ... Is protein the transforming factor? protein-destroying enzymes---made the strains grow so concluded that protein doesn't transform because the bacterial colonies were still transformed. He concluded that protein could not be the transforming factor.
Explanation:
What is the complimentary DNA strand to this template?
ACTCAAGAC
Answer:
The answer would be c
Explanation:
ACTCAAGAC
TGAGTTCAG
they compliment one another
Answer: c. TGAGTTCTG
Explanation: Adenine only bonds with thymine and cytosine only bonds with guanine
Which of these objects is NOT found in the biosphere of the Earth?
1.bald eagle
2.great white shark
3.core of the earth
4.tropical rain forest
Answer:
core of the earth
Explanation:
the biosphere is the inside of earth
which type of muscle do you control voluntarily
Answer:
Skeletal
Explanation:
How are humans , technology , and the environment interrelated
Answer:
Humans , technology , and environment are always interrelated.
Explanation:
To procure nutrition, water, electricity, medications, construction materials, and several other objects, humans must communicate with the environment. Development of science and technology had already allowed us to take advantage of the eco system, but they have also resulted in massive environmental damage and exploits.
HELP! NO LINKS OR IRRELEVANT TOPICS! PLEASE DON'T WASTE MY POINTS!
What places in the world have animals in cages or in limited spaces? Name many please!
Answer:
South China and the U.K.
Once Telophase is complete, the cell has become two identical
daughter cells
True
оr
False
Please help me
Which means a change in position?
A. force
B. speed
C. velocity
D. motion
Answer:
D. motion
Explanation:
Force is something that acts on an objects (e.g gravity)
Speed is how fast something moves
Velocity is sort of like speed and is the rate of change of an objects position
Stars ----- Planets
Alike and Different
Answer:
Explanation:
Same
Most stars are round. Planets are too.Most stars are large distances from each other. So are planets (not as large though)Most stars have colors associated with them. So do planets.Different
Stars are many magnitudes of temperature warmer than planets.Stars are mostly gaseous. Planets are solid.Stars are made of fundamental materials. Most planets have many elements on their surface and atmosphere if they have an atmosphere.The star's diameter is many times larger than the planets.Generally speaking, the planet's density is between 1.5 to 5 times more than the stars.Everyone baj-thts-drh
Answer:
Explanation:
erkjbribuerjbnoeibfejrv HI kwjvneiurbvervwe
A chromosomal alteration in which one or more
pairs of homologous chromosomes fail to separate
normally during meiotic cell division is known as... 1.)an addition
2,) crossing over
3.) nondisjunction
4.) translocation
What is the role of oxygen in cellular respiration?
It provides electrons for the electron transport chain.
It combines with carbon monoxide to form carbon dioxide.
It is needed for the production of light and heat.
It is the final electron acceptor for the electron transport chain.
Answer:
it combines with carbon monoxide to carbon dioxide
Sharks are the top predator in a marine ecosystem. By eating them, sharks maintain a balance in the population of smaller organisms. If the shark’s population were to decrease, the smaller organisms would increase greatly, interrupting the food web. Which of the following relationships is MOST similar to the relationship between the shark and the marine ecosystem?
Answer:
what are the options ??
Explanation:
PLEASE HELP WITH MY BIOLOGY
1. What is the name of the body system responsible for breathing?
complete for brainlist
1. What is the name of the body system responsible
for breathing?
2. What are the parts of the respiratory system?
Your answer
3. What is the correct name for the windpipe?
Your answer
4. What do we Inhale and what do we Exhale?
Your answer
5. What happens in the Lungs?
Answer:
Explanation:
1)respiratory system
2)trachea, bronchi, bronchioles, alveoli, lungs, diaphragm
3)trachea
4)inhale oxygen and exhale carbon dioxide
5)gas exchange
Which of the following are the results of a population reaching the carrying capacity of the environment in which it lives? (Choose
all that apply) WARNING I will report if there are any links to the answer!!
A)The birth and death rates will balance each other out for a net growth rate of zero.
B)The population will no longer grow in size.
C)Death rate will increase, and birth rate will decrease until they balance each other out.
D)Birth rate will increase, and death rate will decrease until they balance each other out.
Answer:
✦ The birth and death rates will balance each other out for a net growth rate of zero.
✦ Death rate will increase, and birth rate will decrease until they balance each other out.
✦ The population will no longer grow in size.
Explanation:
Due to practical limitations of food, water, and space, a given environment has a maximum population size it can support.
state two changes which take place in the flower after pollination
After pollination and fertilization following changes occur in a flower: (i) The petals, stamens, style and stigma of the flower fall off. (ii) Sepals dry up and hold the ovary. (iii) The ovules confined in the ovary develop into seeds.
Recall that the normal range for the hematocrit for a female is 37 - 47%, and the normal range for the hemoglobin level for a female is 12 - 16 g/100 ml. Describe hemoglobin and hematocrit values for the female with iron-deficiency anemia. Recall that the normal range for the hematocrit for a female is 37 - 47%, and the normal range for the hemoglobin level for a female is 12 - 16 g/100 ml. Describe hemoglobin and hematocrit values for the female with iron-deficiency anemia. They were both below normal. The hemoglobin was normal, and the hematocrit was below normal. They were both normal. The hemoglobin was below normal, and the hematocrit was normal.
Answer:
The hemoglobin was below normal, and the hematocrit was normal.
Explanation:
Hemoglobin is an essential protein in the bloodstream, as it is primarily responsible for the transport of oxygen throughout the body. It is also responsible for the red coloration of the blood, as it is present in the red blood cells. The hematocrit, in turn, is a laboratory parameter to determine the amount of red blood cells in the blood and also to determine the total blood volume.
Although the results presented by the hematocrit are important in determining whether a person has anemia, women with normal hematocrit values may be anemic, primarily because the hematocrit results may be associated with the amount of water in the blood. What is essential to determine if a woman is, in fact, with anemia, due to iron deficiency, is the hemoglobin values that are below normal.
Which organisms are producers?
Select all correct answers.
a. mushrooms
b. frog
c. grass
d. tree
Answer:
Grass and tree
A producer is a living thing that makes its own food. All food chains begin with producers.
( I am in LOVE with your pfp <3 )
3
Which of the following helps a species adapt to a changing
environment?
A Having fewer offspring
B Having more offspring
C Decreasing genetic variation
D Increasing genetic variation
Answer:
D
Explanation:
I think it is D because if you increase your genetic variation then you will have more population of, well "yourself" - therefore making more chances to survive. although don't take what I say word-for-word because I'm just a noob at this stuff. if it pops up wrong, please notify me why it is wrong so that I can improve.
By increasing genetic variation will help a species adapt to a changing environment. Therefore, the correct option is D.
What is genetic variation?Genetic variation refers to the diversity of genetic information within a population or a species. It is the result of differences in the DNA sequences of individuals, which can arise through a variety of mechanisms such as mutations, genetic recombination, and gene flow.
It provides the raw material for natural selection to act upon. In a changing environment, individuals with certain traits may have a higher chance of survival and reproduction, and their traits may become more prevalent in the population over time.
Therefore, increasing genetic variation through mechanisms such as mutation, genetic recombination, and gene flow is critical for a species to adapt and survive in changing environments. Hence, the correct option is D.
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