Several species of finch live on the Galapagos Islands. They are very similar in appearance, but have adapted beaks of different sizes and shapes based on their major food source. Finches with large beaks eat mainly large seeds and cacti. Finches with small beaks eat mainly small seeds and insects. Which of the following best explains the variety of beaks found in finches on the Galapagos Islands? A. Evolution through natural selection always causes a decrease in the species diversity of an ecosystem. B. Biological evolution does not have any effect on the species diversity of an ecosystem. C. Biological evolution only affects the species diversity of plants in an ecosystem. D. Evolution through natural selection can increase the species diversity of an ecosystem
Answer:
D is the correct answer
Explanation:
Evolution by natural selection can only act on traits initially present. In the common ancestor, there would have been one beak, but in the offspring, there would have been variation in beak size and shape. As natural selection acts on that variation, different species end up with traits adapted to different conditions, thus increasing the species diversity.
How many millimetres (equivalent depth) of water are
contained in a soil profile 1 metre deep if the mass water
content of the upper 400 mm depth is 15% and that of the
lower 600 mm is 20%. The bulk density in the upper layer is
1300 kg m- and in the lower layer is 1500 kg m-?. Assume Pw
= 1000 kg m’How much water does the soil contain (in
cubic
metres) per 1.5 hectares of land?
ri
The equivalent depth of water in the soil is 270 mm and the volumetric water content of soil is 5625 cubic meter/ 1.5 hectare of soil.
How can equivalent depth of water in a soil be calculate?The equivalent depth of water in a soil is calculated using the formula below:
equivalent depth of water = water content × depth of soilThe depth of soil profile 1 = 1 m = 1000 mm
The depth of soil profile 2 = 600 mm
Equivalent depth of water in the soil = 15% × 1000 mm + 20% × 600 mm
Equivalent depth of water in the soil = 150 mm + 120 mm
Equivalent depth of water in the soil = 270 mm of water
The volumetric water content of the soil is calculated using the formula below:
Volumetric water content = water content × bulk density of soil/density of water × height of soilHeight of soil profile 1 = 1 m
Height of soil profile 2 = 0.6 m
Volumetric water content of soil profile 1 = 15% × 1300/1000 × 1 m = 0.195 cubic meter/square metre of soil
Volumetric water content of soil profile 1 = 20% × 1500/1000 × 0.6 m = 0.18 cubic meter/square metre of soil
Total Volumetric water content of soil = 0.18 + 0.195 = 0.375 cubic meter/square metre of soil
Converting to cubic meter/hectare of soil:
0.375 cubic meter/square metre of soil
1.5 hectares = 15000 square metre
Volumetric water content of soil = 0.375 × 15000 cubic meter/ 1.5 hectare of soil
Volumetric water content of soil = 5625 cubic meter/ 1.5 hectare of soil
Therefore, the equivalent depth of water in the soil is 270 mm of water and the volumetric water content of soil is 5625 cubic meter/ 1.5 hectare of soil.
Learn more about soil water at: https://brainly.com/question/13605365
Two degrees Celsius is equal to how many degrees Fahrenheit?
Answer:
35.6°F
Explanation:
Given:
Two degrees celsiusCalculate:
(2°C × 9/5) + 32 = 35.6°FCelsius Formula:
Celsius to Fahrenheit⇒ ° F = (9/5 × °C) + 32
Fahrenheit to Celsius⇒ ° C = 5/9 ( ° F - 32 )
Drag each label to the correct location on the image.
Match each activity to the graph that illustrates its effect on a population.
Answer in picture below:
Base on the given:
if the line goes down = decrease/bad
if the line goes up = increase/good
~Lenvy~
Help me please I’m only have 5 min left
Explanation:
d.Winter
c.cold/high
I hope these are your two answers
The graph below shows how the price of wheat varies with the demand quantity.
Suppose that an increase in production costs decreases the supply of wheat, such that less wheat is supplied at each price level. The new equilibrium quantity (after the decrease in supply) is _____.
400
600
Answer:
400
Explanation:
Which statement about predator and prey adaptations is correct?
A. Only predators benefit from having poison.
B. Only prey benefit from camouflage.
C. Both prey and predators can benefit from high speed.
D. Only predators benefit from good vision
The photo shows the leaves from one type of vascular
plant. Use the dichotomous key to identify the type of plant
that has these leaves.
1a The leaf is broad and flat.
Go to 3.
1b The leaf is needle-like.
Go to 2.
2a The leaf is a sharp, yellow spine.
Cactus
2b
The leaves are stiff and green
and set at angles to the branch.
Fir
3a The leaf has a smooth edge.
Laurel
3b
The leaf does not have
a smooth edge.
Go to 4.
4a The leaf has a sawtooth edge.
Elm
4b The leaf has a lobed (wavy) edge. English oak
the answer is c elm do to it having a saw blade edged
How to cross trihybrids
Answer:
Im not quite sure what this question is. But it sounds intresting. I wonder what the outcome of that eould look like eith Chewbacca an Stock from Wirf from star treks baby would look like. hmmm
The rock has a low amount of silica, is that intrusive?
Liquid & gaseous wastes are removed from the body by the kidneys ____ & _____
Answer:
Brainliest pls
Explanation:
The anus removes all the waste from the body that couldn't be digested. This can be shown during excretion.
Explain the importance of ground tissue in plants?
Answer:
Ground tissue carries out different functions based on the cell type and location in the plant, and includes parenchyma (photosynthesis in the leaves, and storage in the roots), collenchyma (shoot support in areas of active growth)
Explanation:
Place a cell where protein synthesis takes place
Answer:
Ribosomes
Ribosomes are the sites in a cell in which protein synthesis takes place
which of these describes what happens when the temperature of an object increases
Answer:
kinetic energy
Explanation: When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
What is the purpose of a positive and negative transcription factor?
Answer:
That's how negative transcription factors work in plant and animal cells. Hope this helps as well. Negative transcription factors (repressors) prevent transcription of certain pieces of DNA. One example, is the suppression of the lac operon.
Give two other names for bacteria capsule and list any four important function
Answer:
Macro-capsule: thickness of 0.2µm or more, visible under light microscope
Microcapsule: thickness less than 0.2µm, visible under Electron microscope
Explanation:
It has several functions: promote bacterial adhesion to surface or interaction with other organisms; act as a permeability barrier, as a defense mechanism against Phagocytosis and/or as a nutrient reserve. Among pathogens, capsule formation often correlates with pathogenicity
correct me if I'm wrong
Answer:
Capsule (also known as K antigen) is a major virulence factor of bacteria, e.g. all of the principal pathogens which cause pneumonia and meningitis, including Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis, Klebsiella pneumoniae, Escherichia coli, and group B streptococci have polysaccharide capsules on their surface. Nonencapsulated mutants of these organisms are avirulent.
It has several functions: promote bacterial adhesion to surfaces or interaction with other organisms; act as a permeability barrier, as a defense mechanism against phagocytosis and/or as a nutrient reserve. Among pathogens, capsule formation often correlates with pathogenicity.
Explanation:
What is one reason scientists have developed a system to classify organisms?
Classification allows for organisms to interbreed and change.
A system was needed to better track genetic changes in an organism.
Classification allows for better identification of new organisms.
A system was needed to see microscopic organisms with more detail.
Answer:
Classification allows for better identification of new organisms
Explanation:
Classification is used to identify organisms and categorize them so scientists can have an easier time studying them
Which of the following statements best describes the influence of the ocean on climate change? The ocean absorbs heat and carbon dioxide from the atmosphere.
The ocean releases oxygen into the atmosphere.
The ocean reflects heat from the sun out of the atmosphere.
The ocean absorbs heat and oxygen from the atmosphere.
Answer:
the answer to your question i'm pretty sure is the third one :the ocean absorbs heat and oxygen from the atmosphere.
Explanation: the ocean does not reflect the sun that's why when you get into the water in the beach it is warm if it is sunny out. and releasing oxygen into the air just does not make since. hope that helps
compare and contrast deuterostome and protosome development
Question: compare and contrast deuterostome and protosome development
Explanation:
Vascular tissue allows a plant to transport water
against the pull of gravity. Which statement best
describes the trait of vascular tissue in the plant
kingdom?
A. All plants use vascular tissue to transport water.
B. Most plants, but not mosses and other bryo-
phytes, use vascular tissue to transport water.
C. Only woody plants, such as trees and shrubs,
use vascular tissue to transport water.
D. Only herbaceous plants, such as grasses and
garden vegetables, use vascular tissue to trans-
port water
Answer:
the answer is B
Explanation:
Mosses and liverworts are lumped together as bryophytes, plants lacking true vascular tissues, and sharing a number of other primitive traits. They also lack true stems, roots, or leaves, though they have cells that perform these general functions.
How can inheriting certain genes increase a person’s risk for cancer?
How much atoms and cells on a phone screen
Answer:
100 trillion atom in 1 cell
Explanation:
im not sure huhu sorry po
It took a snail 5 seconds to travel 10 inches. How fast was the snail moving?
Answer:
The snale went 0.5 inches per second
Explanation:
The equation for speed is: S = d/t
The sail too 5 Seconds to travel 10 inches** this is were you have all your information needed
Now solve
S= 5/10
all you have to do is simplify
D= 1/2
and convert into demile
0.5
now make a statement
The snail went 0.5 inches per second
Deserts are defined as regions that have less than ____ inches of rain per year.
Answer:
A place that receives less than 10 inches (25 centimeters) of rain per year is considered a desert. Deserts are part of a wider class of regions called drylands.
Explanation:
A person who likes social situations and can lack concentration is
A. unstable
B. an extrovert
C. stable
D. an introvert
Answer:
an extrovert
Explanation:
what process will you see to recover salt, which has dissolved in water?
Answer:
What process will you use to recover salt which has dissolved in water?
Explanation:
You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid.
How does recycling save our environment
Answer:
it prevents pollution of the environment
Explanation:
instead of people dumping waste materials they reuse them for better purposes
What two processes increase genetic diversity during meiosis?
Answer:
Crossing over
Independent assortment
Explanation:
Agatha quit school 6 months ago and, while she found a job, she finds it unfulfilling. During this time, Agatha has felt sad and worthless. Agatha knows she should probably re-enroll in school, but she has no energy to start that process. She also lacks any interest in going out, and her inability to enjoy companionship has resulted in lost friendships and loss of potential relationships. Agatha would MOST likely be diagnosed with _____ disorder.
cyclothymic
obsessive
bipolar
major depressive
Agatha has no energy to start that the process of enrolling in school. She also lacks any interest in going out, and her inability to enjoy companionship has resulted in lost friendships and loss of potential relationships. Agatha would MOST likely be diagnosed with major depressive disorder.
What is Major Depressive Disorder.Major Depressive Disorder is regarded as a mental illness where one experiences persistent and extended periods of depression and mood disorder which affects the quality of life, making them loose interset in major areas of thier lives.
The probable causes of this depressive disorder can emanate from
Having a stressful or unfulfilling life divorceillnesslack of job or moneyHere Agatha feeling sad and wortrhless with lack of interest and loss of friendships shows that she is suffering from a clinical disorder called ,Major Depressive Disorder, (MDD).
Learn more on Major Depressive Disorder here:https://brainly.com/question/10682818
^^ which of the following would have the highest species richness?
Answer:
Tropical Ecosystems
Explanation:
I'm not sure what the following is, but tropical ecosystems have the highest species richness. Thus, the higher temperature in the tropics cause higher rates of metabolism, ecological dynamics and coevolutionary processes, which generate and maintain higher biodiversity.