The first groups of land plants to evolve were liverworts, mosses, and hornworts. These plants were small and grew close to the ground because they relied on water being able to move on its own through the plant bodies. The next groups of land plants to evolve were ferns, which could grow bigger and taller because they could transport water and food.
What trait most likely evolved in ferns that was not present in the earlier groups?
cuticles
seed shells
vascular tissues
photosynthesis
Answer:
vascular tissue os the answer
Explanation:
Answer:
C
Explanation:
3. Evaluate the validity of the following statement and explain your reasoning.
Once scientists believe something to be true, they will say so with 100%
certainty.
Answer:
If the scientist makes a statement so it is 100 % valid.
Explanation:
Once scientists believe something to be true, they will say so with 100% certainty. This statement is true because the statements of the scientist is not based on theories. Scientist make any statement after performing many experiments in order to verify the statement. So if the scientist will say about something with 100 percent certainty so it is considered as valid because the statement goes through from a number of experiments.
Which choice best describes the function of lungs?
Responses
A. Perspiration releases sweat, which is used to help cool the body.
B. Respiration inhales oxygen gases and exhales carbon dioxide.
C. Digestion absorbs nutrients in the body and expels waste.
D. Circulation pumps the oxygenated blood and nutrients throughout the body.
( science, 5th grade lvl )
Answer: Respiration inhales oxygen gases and exhales carbon dioxide.
Explanation: Here, Oxygen enters the blood during inhalation, and carbon dioxide leaves during exhalation. This process is called Respiration. Air enters through the nose or mouth and goes through the nostrils, then the pharynx where two tubes are seen one for food and the other for air. From there it goes to the larynx, the voice box. Next air travels to the trachea(the windpipe) from which they get divided into left and right air tubes called bronchi. Smaller bronchi are called bronchioles. These end in tiny air sacs called alveoli. Exchange of gases takes place and revert back.
Professor Parsons says
that Cramwood made a
mistake with his BAAD.
What could it have been?
What do you predict the
court will say? Write your
answer to the question
below on the other side
of this page
By adding tape to his BAAD, Cramwood increased its mass and increased
its inertia. The bigger BAAD requires more force to stop and ends up smacking Cramwood in the head when he applies the brakes.
What is inertia?Inertia is the tendency of an object to resist a change in its motion. Specifically, it is the property of matter that causes an object to maintain its state of rest or uniform motion in a straight line unless acted upon by an external force.
In other words, an object at rest will remain at rest, and an object in motion will continue to move at a constant speed and in a straight line, unless acted upon by an external force.
The amount of inertia an object has depends on its mass, with more massive objects having more inertia than less massive objects.
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Isidro visits the same park every week. The park has lots of different rock formations. How does the rock at the park change from week to week?
Answer:
There is no way that sedimentary rock can form from material in igneous rock. Isidro visits the same park every week. The park has lots of different rock formations. The rock will not change at all.
Explanation:
Answer: It can change in many different ways, but my explanation is the most common.
Explanation: Erosion and Weather. Weather has a big impact of the world around us. Weather and Erosion work together. The world is constantly changing, including the rock formation. For example, if it rained all last week the formation would be different because there is a chance that some of the rock was chipped away (depending on the strength and build of the rock and how old it is). This is when Erosion takes place. Erosion is a cycle. Erosion helps for other rocks and different shapes of rocks.
Hope this helps!
i need to make up a living thing that is not in any of the five kingdoms the teacher told us something like a human that did photosynthesis but we cant use that one and im not sure what to do other than that also we need half a page of its characteristics. Please help
BRAINLIEST
While savannas and temperate grasslands are both types of
grasslands and share many characteristics, they also have
some differences. Compare them below by writing each
characteristic in the correct location. You will use each only
once.
• home to many types of grazers
• experience all seasons of weather
• home to bison
• home to the African elephant
• example: tallgrass prairies of North America
• example: Serengeti in Tanzania
• also known as tropical grasslands
• few trees due to little rainfall
1)
(Savannas)
(Both Types of
Grasslands)
(Temperate
Grasslands)
Answer:
S - Savannas are typically found in tropical or subtropical regions.
S - Savannas tend to have more trees and shrubs.
S - Savanna's climate is drier than that of a grassland.
G - Grasslands are found in temperature regions.
G - Temperature Grasslands are mainly devoid of trees, receive less rainfall than Savannas & endure broader temperature extremes.
G - Grasslands make up 25 percent of the Earth's land surface and dominate in regions with limited rainfall, which prevents forest growth. This results from nearby mountain ranges that cause rain shadows over adjacent open-range lands.
B - Both represent the world's richest and most diverse ecosystems. They both provide a home for a quarter of the world's population and a habitat for thousands of plants and animals.
B - Many species gather in vast numbers, graze on the varied grasses, and can be found nowhere else on Earth. The coexistence between wildlife and grasses is key to healthy ecosystems. Animal migrations regenerate the landscapes, by controlling pests, dispersing seeds, and trampling invasive species. Through this partnership, grasslands and savannahs generate vital benefits for both people and nature.
B - Ecosystems such as these two in specific are essential for climate mitigation – they store carbon, locking it deep in the soil and extensive root systems. They are the source of or support many of the world’s biggest rivers and wetlands, ensure food security, support livelihoods, and are embedded in the cultural identity of millions of people.
(Also, A savanna or savannah is a mixed woodland-grassland<---similarity)
Explanation: Just research. I decided to state 3 characteristics for both The Savanna and The Grasslands, and then 3 for "B" (both).
Lactose is a MacConkey ingredients. The purpose of lactose in this medium is
Answer:
To act as a fermentable source of carbohydrate.
Explanation:
In microbiology, certain media are used to culture specific micro-organisms. One of those media is Macconkey medium agar, which was prepared and named after a man called Alfred Theodore MacConkey. Macconkey medium is used for the selective and differential growth of gram negative bacteria.
The medium consists of ingredients such as peptone, lactose, bile salt, water, agar, etc. The lactose component of the agar is used as the source of fermentable carbohydrate and also serves to differentiate between lactose fermenting bacteria and lactose non-fermenting bacteria, which is one of the uses of the agar medium.
A pedigree chart is used to _______.
predict percentage of offspring with a trait
predict genotypic probabilities
track inherited traits through generations
identify the genotype of parents
A pedigree chart is used to track inherited traits through generations.
A pedigree chart is a visual tool that represents the inheritance patterns of specific traits or genetic conditions within a family. It helps to trace the occurrence of traits, diseases, or genetic conditions across multiple generations by depicting the relationships between individuals and their affected or unaffected status.
Pedigree charts are commonly used in genetics and genetic counseling to analyze patterns of inheritance, identify carriers of genetic disorders, determine the probability of passing on certain traits or diseases, and study the transmission of traits within families. By examining the patterns of inheritance in a pedigree chart, one can gain insights into the mode of inheritance, such as autosomal dominant, autosomal recessive, or X-linked inheritance, and make predictions about the likelihood of certain traits or conditions appearing in future generations.
Which environment will experience the LEAST amount of change over time?
A. an ecosystem with a climax community
B. an ecosystem that is in secondary succession
C. an ecosystem that is in primary succession
D. an ecosystem with only pioneer species
Answer: D
Explanation: the pioneer species is the first species to live in an environment
An ecosystem with a climax community will experience the least amount of change over time. Therefore, option A is correct.
Why climax community ecosystem experience the least amount of change?A climax community is a stable community of plants and animals that has reached a state of equilibrium with its environment. In such a community, the number of species and their relative abundance tend to remain relatively constant over time, barring any major disturbances such as fire or human intervention.
In contrast, ecosystems in primary and secondary succession are undergoing significant changes as they transition from bare rock or disturbed land to a stable, self-sustaining community. Ecosystems with only pioneer species may also experience significant changes over time as more complex plant and animal communities develop.
Therefore, option A is correct.
Learn more about the climax community, here:
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After 24 hours of consuming maple syrup where will it be in your body?What happens to your body after 24 hours of consuming maple syrup? What is the process in your body after it goes down your esophagus?
Answer:
out of ur body
Explanation:
because u would have digested and thrown it out of ur body
A car moves when filled with fuel and the engine is started by the driver. It changes direction on its own when the steering wheel is moved by the driver. Is the car living or non-living? Justify your answer
Science
Answer:
Car is non-living. It does show movement but that is by the application of external force. It cannot grow as living organisms do nor it can respire like other living organisms. Car changes its direction when the driver rotates the steering otherwise it cannot do so on its own.
Explanation:
Answer:Non-Living
Explanation:The car can’t breathe , eat or do any things for itself therefore it is non-living
After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits?
They are more likely to survive environmental changes because of the bottleneck event.
They are as likely to survive environmental changes because they survived the bottleneck event.
They are as likely to survive environmental changes because their population has recovered.
They are less likely to survive environmental changes because of the bottleneck event.
Answer: They are less likely to survive environmental changes because of the bottleneck event.
Explanation: There is a lack of genetic variation because of the bottleneck effect, making it harder for the species to adapt to an environmental change.
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Choose one microscopic species that causes a human illness. Give the scientific name of the species, the disease it causes, and the vector, and then describe the symptoms in a 130 word paragraph or two.
Answer:
malaria
Explanation:
Write the chemical formula for each of the following compounds. Start the formula with the first element listed in each statement below and follow with the next element. The ratios in which the elements combine are given in each statement.
(a) Rubbing alcohol is formed when three atoms of carbon combine with eight atoms of hydrogen and one atom of oxygen.
Answer:
C3H8O= C3 + H8 + O
Explanation:
You do not need to write the one for oxygen, yo can if desired
The word of “seismic”is also used to describe something enormous or highly significant why do you think that is?
1 : of, subject to, or caused by an earthquake also : of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite) 2 : of or relating to a vibration on a celestial body (such as the moon) comparable to a seismic event on earth.
Layers of sand and other sediments that become sedimentary rock
A.
can contain the remains of animals but not plants.
B.
can contain the remains of plants, animals, or both.
C.
always contain the remains of both plants and animals.
D.
can contain the remains of plants but not animals.
Answer: C
Explanation:
WILLL GIVE BRAINLEST
Head sore, eyes burning, and ear pounding and pounding and pounding, Kasem still fights through the smoke. The explosion rocked Kasem's sense of direction and location. "Help!" he screams out into the thick haze that envelops him like an oversized blanket.
Kasem stumbles several yards and finally sees a window. The window! The window is open and Kasem notices the smoke pouring out of the blessed opening. Freedom! Kasem vaults himself forward and falls through this blessed opening. A bush a few feet below the window breaks his fall.
Kasem manages to stand and brush himself off. A figure, hazy and distorted, runs to him. "It must be a firefighter," Kasem thinks before passing out on the debris-littered yard.
Based on evidence in the text, why would the author MOST LIKELY choose to write this story in third-person limited point of view?
A) The author wants to be able to lay out the events of the story in sequential order.
B) The author wants the reader to understand the thoughts and feelings of multiple characters.
C) The author wants the ability to talk directly to the audience to explain certain situations.
D) The author wants the events of the story to unfold through the perspective of one main character.
Answer:
I would go with C, because in this the author is talking in great detail abt it all even describing the smallest things
Which table best shows the impacts resulting from human activity?
Impact of Human Activities
Human Activity Impact
Use of manure and other organic fertilizers Reduction in the population of birds
Use of pesticides in farms Increase in bird population in nearby wetlands
Impact of Human Activities
Human Activity Impact
Use of manure and other organic fertilizers Reduction in animal population
Use of pesticides in farms Increase in population of native insects and bugs
Impact of Human Activities
Human Activity Impact
Use of plastic Decrease in marine animal population
Removal of beach grass Increase in pollution of ocean
Impact of Human Activities
Human Activity Impact
Use of plastic Increase in fish population
Removal of beach grass Decrease in sand erosion
Answer:
the third one
Explanation:
Answer: 3rd answer
Explanation:
Its the only answer that makes sense. The others are either wrong, or don't make sense.
Are paramecium heterotrophic or autotrophic? Explain your answer.
Answer: Paramecium are heterotrophs.
Explanation: Their common form of prey is bacteria. A single organism has the ability to eat 5,000 bacteria a day. They are also known to feed on yeasts, algae, and small protozoa.
Hope this will help
A ______________ is used to track inherited traits from one generation to the next.
Answer: A pedigree is used to track inherited traits from one generation to the next.
which processes contributes to the formation of chemical sedimentary rocks
HELP ME AGAINN I'LL GIVE 17 POINTS -
Someone do this for me
Answer:
wow
Explanation:
GIVING BRAINLIEST what is a animal that has 4 legs and one tail and has spots
Answer: Leopard or a jaguar.
Explanation: Both leopards and jaguars have 4 legs one tail and spots
Seed Germination Investigation
The students are to investigate the process of seed germination during their summer
vacation.
They will select different types of seeds, such as beans, peas, or sunflower seeds.
Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
They should observe and document the changes that occur over time, including the
emergence of roots and shoots
Answer:
b
Explanation:
I took test
Answer: Encourage students to set up a germination experiment by placing the seeds in different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to pot the same seed in more than one pot.
Explanation:
This option provides a clear and practical approach to the seed germination investigation. By setting up different conditions for the seeds, such as light vs. dark or wet vs. dry, the students can observe and compare how these conditions affect the germination process. Additionally, potting the same seed in multiple pots allows for a controlled comparison within the experiment.
By manipulating these variables, the students can gather valuable data and observations regarding the influence of light and moisture on seed germination. This approach promotes a hands-on and investigative learning experience, encouraging students to actively engage with the scientific process while documenting the changes that occur over time, such as the emergence of roots and shoots.
Three Anacharis plants were placed inside inverted test tubes filled with water. One test tube was exposed to low light, another to medium light while another was exposed to high light. The table provided shows the results of this experiment. Notice that more oxygen was produced by the Anacharis in high light.
Based on the information provided, what is the difference in volume (in mL) of oxygen produced between the low light and high light plants after 45 minutes? Record your answer below
Answer value
Answer:
Anacharis in High Light produces more mLof oxygen per min than Anacharis in Low Light Anacharis and in Medium Light.
Explanation:
The increased light intensity also increases the rate of photosynthetic activity. As photosynthesis occurs, the energy from sunlight, along with CO2 is converted to chemical energy in the form of glucose.
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
or Carbon dioxide + water = energy (glucose) + oxygen
Photosynthesizing cells in green plants produce oxygen as a waste product. As this process is rate-limited, certain factors may increase the reaction rate. These include:
carbon dioxide concentration
water availability
ambient temperature
light intensity;
The theory of evolution has changed over time. Initially, Lamarck believed that organisms developed traits in response to a changing environment to improve their chances of survival. Later Darwin proposed that organisms that already possessed traits suitable to a changing environment were more likely to survive and reproduce.
Which of the following does not explain why the theory of evolution has changed?
A. Lamarck’s theory was discarded when new scientific information became available.
B. Darwin collected empirical evidence to support that organisms with favorable traits survived and reproduced.
C. The theory of evolution became a scientific law after much debate and confirmation in the scientific community.
D. Other scientists such as Peter and Rosemary Grant have collected additional empirical evidence that supports Darwin’s findings.
what are the locations for each mark