Which of the following organisms eat spiders in this ecosystem? Check all that apply:
snakes
toads
insectivorous birds
herbivorous insects
predaceous insects
In a given year, which would result in the greatest increase in population size?
A. high birth rate, high death rate, high immigration, high emigration
B. high birth rate, zero death rate, high immigration, zero emigration
C. zero birth rate, low death rate, zero immigration, low emigration
D. zero birth rate, zero death rate, low immigration, high emigration
Answer:
B. High birth rate, zero death rate, high immigration, zero emigration
Explanation:
High birth rate would mean more people being born resulting in a higher population. Zero death rate would mean that no one is dying and leaving the population. Immigration means when people come to a foreign country to live there, meaning that the population would grow. Emigration means the opposite of immigration. So that would mean that the people would be leaving your country. Resulting in a lower population. So, B is the correct answer!
Hope this helps! :3
Drag the tiles to the correct boxes to complete the pairs. Match the soil conservation technique to its explanation.
Answer:
contour farming => process of growing crops perpendicular to the direction of the land's slope.
grassed waterways =>planting grass in shallow channels.
crop rotation =>practice of growing different crops in succession in a field.
cover cropping and mulching => process of covering the soil surface around a plant with materials such as hay or leaf debris.
What population distribution pattern works best when doing random sampling? Why.
A. Clump
B. Random
C. Uniform
Answer:
Dispersion or distribution patterns show the spatial relationship between members of a population within a habitat. Individuals of a population can be distributed in one of three basic patterns: uniform, random, or clumped.
Explanation:
A research study looked at variations in snail populations in urban areas compared to natural ecosystems outside of the urban development. Urban areas tend to be be warmer, trapping more solar energy and reflecting less light back out of the atmosphere. The study found that brown snails were more commonly found in the natural ecosystem while yellow banded snails were found in the urban, developed areas. Which statement best describes the distribution in the phenotypes for the snails in this scenario?
A) The variations in the snail populations are random and unrelated to the locations.
B) The variation in the snail population is due to sexual reproduction of the snails in the urban development and asexual reproduction of the snails in the natural ecosystem.
C) The variation in the snail population is due to mutations while the distribution of colors in the population is due to genetic drift. The location of the colors is a random process.
D) The variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter colored snails survive with greater frequency in the warmer urban development.
Answer:
D) The variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter colored snails survive with greater frequency in the warmer urban development.
Explanation:
The distribution in the phenotypes for the snails in this scenario depends on the variations due to mutations as well as the change in temperature in the two areas.
What do you mean by Phenotypes?Phenotypes may be defined as the appearance or manifestation of desired characters. Phenotypes may also be known as traits.
The phenotypes of snail may get changes due to mutation which is caused by the high temperature in an urban area. UV light is considered a physical agent of mutation. Hence, the variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter-colored snails survive with greater frequency in the warmer urban development.
Therefore, The distribution in the phenotypes for the snails in this scenario depends on the variations due to mutations as well as the change in temperature in the two areas.
To learn more about the Ecosystem, refer to the link:
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Describe the weather conditions for a Warm front.
Answer:
Explanation:
Warm fronts bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms.As the front passes over an area, the clouds become lower, and rain is likely. There can be thunderstorms around the warm front if the air is unstable.
If my experiment was to find out how a particular type of fertilizer will affect my beans growth, which of the following would NOT be a controlled variable?
Answer:
Explanation:
Hey how are you
That you got to add and fertilizer
Which of these is the MOST common result of greenhouse gases altering the atmosphere of Earth?
A. an increase in the air temperature
B. a decrease in the air density
C. an increase in the intensity of visible light
D. a decrease in the thickness of the ozone layer
Greenhouse gases are the gases that involves carbon dioxide, methane, nitrous oxide and water vapor. Its main consequence is the increase in the air temperature.
What are greenhouse gases?Greenhouse gases are the gases that traps the heat in the atmosphere and make it warm.
There are following greenhouse gases:
Carbon dioxide.Methane.Nitrous oxide.Water vapor.These gases contribute in the increased temperature of the environment.
Thus, the correct option is A.
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A track athlete throws a 2kg discus into a field with a velocity of 21m/s. What is the momentum of the discus?
Answer:
Given :
Momentum of disc = 42 kg m/s
Velocity of disc = 21 m/s
To Find :
Mass of the disc.
Solution :
❖ Momentum is defined as the product of mass and it's velocity..
Mathematically, p = m × v
p denotes momentum
m denotes mass
v denoted velocity
➛ It is a vector quantity having both magnitude as well as direction.
➛ It can be positive, negative or zero.
➛ SI unit : kg m/s or N s
By substituting the given values;
➙ p = m × v
➙ 42 = m × 21
➙ m = 42/21
➙ m = 2 kg
∴ Mass of the object is 2 kg.
Knowledge BoosteR :
As per newton's second law of motion, force is measured as the rate of change of linear momentum.
Formula : F = dp / dt
plz help me with this and don't send me links
how the cells in your body are different from one another. Look at the different types of cells above, and make a list of how they differ. After you have made your list, consider why they have these differences.
Answer: Different cells have different jobs to do. Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs.Differentiation means that one cell performs a different function than another cell, depending on where it is in your body. ... All the cells contain the same genetic material and all of them are from one original cell that started as a fertilized egg, but they look different and act different from one another. Under a microscope, fat cells look like bulbous little spheres. Like other cells in the body, each has a cell membrane and a nucleus, but their bulk is made up of droplets of stored triglycerides, each of which consists of three fatty-acid molecules attached to a single glycerol molecule. Skin cells are specialized to be quickly shed and replaced, and do not have much mitochondria (which helps produce energy). Muscle cells, conversely, have lots of mitochondria because they need energy to produce movement. Unlike many other cells, red blood cells have no nucleus and can easily change shape, helping them fit through the various blood vessels in your body. Unlike most other eukaryotic cells, mature red blood cells don't have nuclei. When they enter the bloodstream for the first time, they eject their nuclei and organelles, so they can carry more hemoglobin, and thus, more oxygen. Each red blood cell has a life span of around 100–120 days. Skin cells are specialized to be quickly shed and replaced, and do not have much mitochondria (which helps produce energy). Muscle cells, conversely, have lots of mitochondria because they need energy to produce movement. brainliest??
Explanation:
3. Why are some traits seen more in populations than others?
a. Those traits are more beneficial for survival in a niche
b. Those traits are less beneficial for survival in a niche
c. Gene flow from outside populations
d. Genetic drift from outside populations
How might long-term climate change affect the behavior of migratory birds that nest in the Arctic tundra?
Answer:
Climate change affects patterns of migration. Global warming also influences the routes of many migratory birds and their annual migration rhythm. A lot of migratory birds change their routes, shorten or completely cancel their journey as a result of changing temperatures.
Explanation: Hope this helps
Answer: well climate change can be many things like if it snows gets colder that means more nesting areas of it gets sunnier or hotter less nesting areas and if that happened then they would have to find different areas to nest at
Explanation:
How do hypothalamus and pituitary glands work together?
Answer:
The hypothalamus is responsible for maintaining the body's internal balance (homeostasis) by stimulating or inhibiting major bodily functions such as the heart rate and blood pressure, body temperature, fluid and electrolyte balance, appetite and body weight, sleep cycle and function of the gastrointestinal track. The hypothalamus is also considered the master regulator of the endocrine system; Regulatory hormones secreted by the hypothalamus are transported by the hypophyseal-portal system to the anterior and posterior pituitary, prompting the release of secondary hormones that can affect various organ functions.
Explanation:
NEED HELP ASAPPPP!!! PLEASEE
Answer:
The chromosomes at the top are haploids because they only have one set of chromosomes (only one parent)
The chromosomes at the bottom are diploids because they contain two complete sets of chromosomes (each one from a parent)
Hope this helps :D
How did adding a word change the possibilities?
Answer:
suffixes
Explanation:
June 22, 2018. A suffix is a letter or group of letters you add to the end of a word. It changes the meaning or function of a word. ... There are many suffixes used in the English language.
3. How are frog eyes different from human eyes?
Answer:
Most frogs see well only at a distance, but they have excellent night vision and are very sensitive to movement.This peripheral vision helps them spot predators and prey. Humans and other mammals focus images by changing the shape of the lens. Like a camera lens, frog eyes focus by moving the lens back and forth.
I don’t understand it, if someone can explain maybe what I have to do and put into each Column or give me the answer either way would help a lot. Thank you.
Answer:
First, describe each type of evidence (eg. Molecular biology is comparing DNA sequences to determine common ancestry). Then provide examples of how those pieces of evidence support the theory of evolution. For example, for one of the comparative anatomy examples, you could say that organisms that contain similar structures most likely diverged from a common ancestor.
I hope this gets you on the right track.
Explanation:
The sun is considered the ultimate source of energy for life on Earth because
Answer:
c) it provides energy directly and indirectly to all organisms.
Explanation:
Producers recieve energy directly and consumers receive the energy indirectly
When is the MOST energy transferred from the Sun to water in the water cycle?
Select one:
a. during collection
b. during evaporation
c. during condensation
d. during precipitation
Answer:
During Evaporation.
Option B
en que conciste la funcion de relacion?
What connective tissue is found in joints and provides a
smooth surface for bones to move against?
Seed drill is used for
Positioning them in the soil and burying them to a specific depth
Answer:
seed drill is used for to sow the seeds at equal distances and proper depth, ensuring they get covered with soil and are saved from being eaten by birds.
PLEASE MARK ME AS BRAINLIESTCellular respiration occurs in the chloroplasts of prokaryotic cells but the mitochondria of eukaryotic cells.
True or False?
biology
Question:what is spermatogenesis
Answer: the production or development of mature spermatozoa
Explanation: Hope this helps Plz mark me brainliest
In a natural community in Colorado, producer organisms might include *
a. Bacteria, fungi and viruses
b. Deer, rabbits and mice
c. Bears, aspen and flies
O d. Grasses, spruce trees and pinon pine
Which of the following is a characteristic of the inner planets?
A
They have visible rings.
B
They have up to two moons.
с
They are made mostly of gas.
D
They are enormous and heavy.
Answer:
i think the correct answer is b
photosynethis organisms turn into an organic molecule in the form of what
Answer:
glucose
Explanation:
Photosynthetic organisms like green plants use CO₂ and H₂O in the presence of sunlight and convert it into an organic molecule, which is a carbohydrate ( glucose).
WILL GIVE BRAINLISTTT!!! How can life and conditions on Earth be used as a model for life on other worlds?
Answer:
You can see the conditions of the other world, and see the composition of that world. This allows you to see what elements are abundant. Assuming there is water on that other planet, you can use the elements that are found there and see what organisms on earth are composed of those elements or use them.
Specifically, extremophiles (types of archaeabacteria) often exhibit characteristics that seem suitable for other planets. Using this, you can estimate what life on other planets have as characteristics, or even what they are made of.
Organisms with similar molecular makeups + organisms in areas with similar environmental pressures often exhibit anatomical + behavioral similarity. You can use this to model this.
Which of the following processes produce metamorphic rocks?