Answer:
Cells eventually become specialized and use different parts of genes to become programmed to do special jobs and look a certain way.
Explanation:
MULTIPLE CHOICE
Question
What is photochemical smog?
A
a primary pollutant released by volcanoes
B
Chemicals that glow
С
A primary pollutant caused by burning wood
D
A secondary pollutant caused by a chemical reaction between pollutants and
a
light
!! NEED DONE SOON!!
The mouth and stomach are connected by the ____.
esophagus
rectum
liver
small intestine
Answer:
The answer is Esophagus.
Explanation:
The tube that connects the mouth and the stomach is the esophagus27 It is harder to push a box up a ramp with a rough surface than up ono
with a smooth surface because the rough surface provides moro
A motion
B friction
C gravity
D magnetism
EN
28 A boy can see his face when he looks into a mirror. Which physical
property of the mirror makes this happen?
A reflectiveness
B temperature
C flexibility
D volume
AV
29 The diagram below shows a T-shirt hanging on a clothesline. Letter A
represents a simple machine.
Clothesline
Pole
T-shirt
Which type of simple machine is represented by letter A?
A lever
B balance
C pulley
D inclined plane
Grade 4 Science -- June 19
[12]
Friction and reflectiveness are the correct answers for question no. 26 and 27.
What is the role of friction?It is harder to push a box up a ramp with a rough surface as compared to a smooth surface because the rough surface provides more friction that is the force opposite to the motion.
A boy can see his face when he looks into a mirror due to the reflectiveness property of the mirror that makes this happen because a boy see his reflection in that mirror.
So we can conclude that friction and reflectiveness are the correct answers for question no. 26 and 27.
Learn more about friction here: https://brainly.com/question/24338873
Question 2
2 pts
A scientist observes that a unicellular organism that consumes algae consistently
moves toward a light source in the observation chamber, even if there is no algae
present in the lighted area. Which behavior best describes the movement?
Positive chemotaxis
Negative phototaxis
Negative chemotaxis
Positive phototaxis
Answer:
Positive phototaxis
Explanation:
"Phototaxis is called positive if the movement is in the direction of increasing light intensity and negative if the direction is opposite."
Match the definition to the term:
electricity is produced by the kinetic energy of water moving over a waterfall or dam
a) hydroelectric power
b) geothermal energy
c) fossil fuel
d) biomass fuel
The hydroelectric power is produced by the kinetic energy of water moving over a waterfall or dam. Hence the correct option is A.
What is hydroelectric energy?Hydroelectric energy is also known as hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motion such as water flowing over a waterfall or a pressure flowing river as in mountainous regions to generate electricity.
Hydropower currently accounts for 37% of total United States renewable electricity generation and about 7% of total United States electricity generation.
For information regarding hydroelectric power, visit:
https://brainly.com/question/3077353
#SPJ1
At what phase is the Moon not visible?
Answer:
New Moon
Explanation:
The new moon happens monthly when we can't see the moon and this is because of our view from Earth, as the moon orbits us.
What is a system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation?
Answer:
A theory.
Explanation:
A scientific theory is the product of related observations supported by evidence acquired through scientific investigation. An example of a theory includes the theory of evolution (which explains observations in the fossil record, phylogenetic patterns observed in species, and these results have been aquired through scientific investgation and analysis of things like the genome of species, and archeaological evidence)
NEED HELP ASAP
Select the correct text in the passage.
Which SENTENCES correctly describes the effect of marine debris?
Marine debris is very harmful to marine life. - not an answer choice
1 Its effect, however, is only limited to marine creatures, as it does not affect birds and other species that depend on the sea.
2 One of the major contributors to marine debris is plastic.
3 Garbage and litter from the beach do not contribute to marine debris. Research shows that marine debris is likely to decrease over time as plastics degrade into smaller particles.
4 New methods of manufacturing have been adopted to reduce material consumption and thus prevent a larger contribution to marine debris.
it would be answer number two it tells what the major contributor is.
Answer:
2 and 4
Explanation:
These two options show true effects and facts of marine debris, as plastic is one of the largest contributors and number 4 shows that places are attempting to mitigate the effect. However, 1 and 3 are both false claims and therefore incorrect displays of marine debris' effect
Based on the information in the diagram how do you think beak varitions have most likely benefiitted the finches
Please help!!!!
Answer:
finches?
Explanation:
i did the test but i don know what you mean
(ii) Calculate the difference in height of an 11 year old male in the 95th percentile and an 11 year old male in the 5 percentile.
Answer:
6 feet two inches - 2.716 feet you do the math
Explanation:
i calculated -_-
where most photosynthesis take place
Answer:
Chloroplasts
Explanation:
In the most important part of photosynthesis, the chlorophyll in chloroplasts absorb light energy from the sun and use it to rearrange water and carbon dioxide into sugar (specifically glucose) and oxygen. The light energy is converted into chemical potential energy and is stored in the glucose.
Answer:
chloroplasts
Explanation:
brainliest please
What percentage of babies have Brown and Blue eyes?
20 babies were born in the ward, 10 of them had blue eyes and the other 10 had brown eyes.
% of blue eyes babies is 50% and % of brown eyes babies is also 50% (10/20*100).
What is a Dominant trait?
Brown eye color gene is a dominant trait, and it can express itself in pure breed condition as well as impure breed condition.
Blue eye color gene is recessive and can only express itself in pure breed recessive condition, the dominant gene repress the expression of the recessive gene phenotypically, but the genetic makeup remains the same.
Hence, the blue-eyed babies have pure breed recessive genotype and brown eyed babies have pure breed dominant genotype or genotype.
Learn more about Dominant and recessive traits
https://brainly.com/question/13735349
#SPJ1
All wetlands are considered freshwater ecosystems.
Please select the best answer from the choices provided
T
F
All wetlands are considered freshwater ecosystems.The given statement is false.
What is ecosystems?
An ecosystem is a community of living organisms and their physical environment, interacting as a system. It includes all the living things (biotic factors) in a particular area, as well as the non-living things (abiotic factors) such as air, water, and soil. Ecosystems can be small, such as a pond, or large, such as a rainforest, and are interconnected through various ecological relationships. The health of an ecosystem depends on the balance and interdependence of its components.
The statement is false. While many wetlands are freshwater ecosystems, some wetlands can also be saline or brackish ecosystems depending on their location and surrounding environment. For example, mangrove swamps and salt marshes are wetlands that are typically found in coastal areas and have a high salt content. Therefore, wetlands can be either freshwater or saline ecosystems.
Learn more about ecosystems click here:
https://brainly.com/question/842527
#SPJ1
Check ALL that pairs with positively inotropic:
increase
decrease
heart rate
contractile force
epinephrine
acetylcholine
atropine
sympathomimetic
parasympathomimetic
parasympatholytic
Inotropes are the drug class that increases the blood pump and strengthens the heart rate. It increases the heart rate and contractile force.
What are positive Inotropes?Positive Inotropes are the agents that increase the heart rate and the blood pressure resulting in increased heart contractions to pump more blood. This type of drug class is administered to patients suffering from cardiomyopathy.
In positive inotropes, the heart rate increases, and the contractile force also strengthens. Epinephrine and sympathomimetic agents like dopamine act on the sympathomimetic resulting in increased cyclic AMP levels.
Therefore, heart rate increases with positive inotropes.
Learn more about positive inotropes here:
https://brainly.com/question/15088508
#SPJ1
Which of the following planets is most likely to be colder than earth
Answer:
Uranus is the most likely to be colder than earth.
Neptune is a planet in our solar system that is colder than Earth.
What are the characteristics of Neptune?Neptune is the eighth planet from the sun, and it is a gas giant with no solid surface. It is also the coldest planet in the solar system, with an average temperature of -353 degrees Fahrenheit because the planet is located farther from the sun.
The cold temperature of Neptune is also due to its thick atmosphere, which consists of hydrogen, helium, and methane. Neptune always has extreme storms and harsh environment. However, Neptune is a fascinating object of study for scientists to understand the outer reaches of the solar system.
However, Earth has an average temperature of around 59 degrees Fahrenheit and is located in the habitable zone of our solar system, which is suitable for supporting life.
Therefore, Neptune is a planet in our solar system that is colder than Earth.
Learn more about the Neptune here:
https://brainly.com/question/28422859
#SPJ2
13. What feature of this plant was least likely inherited from its parents?
O A. Having flowers
O B. Being wilted
O C. Flat leaves
O D. Being green
Answer: B
Explanation: That'd be based on how it's taken care of
energy is obtained from the?
Part A:
Based on the first-generation parents depicted in the pedigree, what is the probability rate of the light color phenotype being expressed?
A.) 25%
B.) 50%
C.) 75%
D.) 100%
Part B:
The type of adaptation that the beetle (Ladybugs) in this environment uses to increase its chance of survival is ______.
A.) Migration
B.) Living in large groups
C.) Camouflage
D.) Flight
Answer:
Explanation:
Part A:
Based on the first-generation parents depicted in the pedigree, what is the probability rate of the light color phenotype being expressed?
A.) 25%
B.) 50%
C.) 75%
D.) 100%
Part B:
The type of adaptation that the beetle (Ladybugs) in this environment uses to increase its chance of survival is ______.
essay : What is the impact of pandemic on climate change and vice versa?
Answer:
.
Explanation:
To explain the last sentence, what I mean by that is the sudden decrease in air pollution in just a few weeks is what would have typically taken multiple years to do. Due to less drivers, factories shutting down, and more, less toxic and infirm mental hazardous chemicals were released into the atmosphere in an extremely short amount of time. However, nowdays, it is almost back to where is was before the pandemic.
endemic frog in the philippines
Answer:
The name of the frog is platymantis
Answer:
This frog is a platymantis. It's a usually brown frog.
the presence of which atmospheric condition will most likely result in clear skies in Binghamton, New York
Answer:
High-Pressure Center
Explanation:
To get this answer, this question and answer is based on the Coriolis effect. The Coriolis effect causes the air to rotate in a clockwise direction. When it turns clockwise direction, it will always be high pressure.
If you were to examine the organisms living in the river ecosystem, which organism would you see least often
Answer:
Gila monsters
Explanation:
Gila monsters are found in desert regions of the Southwest United States. They are not found in river ecosystems.
1. What is a limiting factor?
a variable that causes population growth to speed up
O
a variable that causes population growth to increase
a variable that causes population growth to slow
a variable that limits maximum total food availability
A limiting factor is a variable that causes population growth to be slow.
It is a variable of a system that causes a noticeable change in output or another measure of a type of system.
A limiting factor is a variable that causes population growth to slow down. Hence the correct option is B.
In ecology, limiting factors are environmental factors or resources that restrict the growth, abundance, or distribution of a population or species in an ecosystem. These factors can be biotic or abiotic. Biotic limiting factors include competition for resources, predation, and disease, while abiotic limiting factors include factors like temperature, water availability, nutrient availability, and sunlight.
When a population experiences a shortage or restriction in essential resources, it cannot grow at its maximum potential, leading to a slowdown in population growth. Limiting factors play a crucial role in regulating population dynamics and maintaining ecological balance in natural ecosystems. By understanding limiting factors, ecologists can gain insights into how ecosystems function.
Hence the correct option is B.
To know more about population here
https://brainly.com/question/29885712
#SPJ2
Based on the SCIENTIFIC EVIDENCE, life on earth:
1) has always been about the same as it is now
2) started out simple and has gotten more complicated and diverse
3) began with members of all domains
4) soon after Earth's formation
Answer:
2) started out simple and has gitten more complicated and diverse.
Plum Island is divided into two diverse areas. (A) What are the differences between
the two sides? What are the relative fractional sizes of the sides. (B) During a storm
what are the differences in effect on the flora and base of the island?
Great Gull Island is home to one of the biggest breeding populations of roseate terns in the continent and is home to the world’s biggest concentration of common terns, with about 9,500 pairs nesting on the island.
Plum Island sits just off the tip of the north fork of Long Island and acts as a wildlife refuge where over 100 bird species. All of these areas are privately-owned and closed to the public.
Is there a Plum Island?A barrier beach island located off the coast of Newbury and Newburyport in northeastern Massachusetts,
Thus, this is the answer.
To learn more about Plum Island click here:
https://brainly.com/question/17542469
#SPJ1
is it possible to go to heaven in a rocket?
Answer:
To answer this question, no, no one can get back to earth from Heaven if they don't like it. There's no way for anyone to not like Heaven.
Explanation:
Victim 6
An elderly gentleman was discovered dead in his bedroom. His last visitor
was a neighbor dropping off mail over a week ago. When first responders
discovered the body, it was completely limp, with no signs of rigor mortis.
His skin showed signs of blisters and bloating had set in only in his
abdomen.
1) When was his time of death?
- 2) What is the next step in decomposition in his body?
3) What would the most likely manner
of death be for him?
Explanation:
try to understand para may matutunan ka
Differen groups of plants
Answer:
bryophytes (mosses), (seedless vascular plants), gymnosperms (cone bearing seed plants), and angiosperms (flowering seed plants).
Select a field of study within environmental science. Describe how a professional in that field would contribute to the environmental study of a lake.
There are five main fields of environmental science; each one created up of multiple smaller domains.
These five areas are atmospheric sciences, ecology, environmental chemistry, geosciences, and social sciences
What are three fields within environmental science that focus on non living aspects of the environment?Climatology is the study of the Earth's atmosphere and climate. Hydrology is the reflection of Earth's water resources.
Earth science is the analysis of the Earth's nonliving systems and the planet as a whole.
Thus, These five fields are atmospheric sciences, ecology, environmental chemistry, geosciences, and social sciences.
To learn more about environmental science click here:
https://brainly.com/question/4593618
#SPJ1
Which of the following is malleable?
A. Metals
or
B. Nonmetals.
Answer:
A
Explanation:
