Answer:
They have adapted to land, adding features such as embryo retention, a cuticle, stomata, and vascular tissue.
Explanation:
Plants haven't always been on the surface of the earth. Life was restricted to water for a long time. The first plants arose from green algae that resembled the Chara in the image above. Bacteria living in water were the earliest photosynthetic creatures. Soon, as algae evolved, and water drifted away, plants were found on land. Land plants had adaptations that would help their future generations.
A force of 16 N to the west is applied to each object below. Which object will
undergo the greatest change in momentum?
A. A 15 kg object that is moving east at 10 m/s
B. A 15 kg object that is moving east at 5 m/s
C. A 20 kg object that is moving east at 5 m/s
D. A 20 kg object that is moving east at 10 m/s
SUBMIT
Answer:
A 15 kg object that is moving east at 5 m/s
Explanation:
Just did the test
What does the theory of evolution tell us about living things?
A) The environment can make them change rapidly over a short period of time. B)They create fossils when they die
C)Their environment makes them change slowly over time.
D)They can give us clues about extinct species. (science 7th grade) (100 POINTS)
Answer:
Their environment makes them change slowly over time
Explanation: I took the test and got it correct.
The agents of wethering erosion deposition and the rock cycle will slowly change the fossils over time. They may damage them or burry them deep into the layers of earth. Over time, as they age, new landforms will me made ontop of them. This is why they use the fossils to determine the age of the land. I hope this helps :)
In a population:
A. Are organisms that live all over the world
B. Are autotrophs
C. All organisms are of different species
D. All organisms are the same species
Answer:
D. All organisms are the same species
Explanation:
The organisms of the same species in a particular area is called population.
if the diploid chromosome number of cloned plant is 12 the chromosome number of the plant cell used to produce the cloned plant is
Answer:
jhasvxhjvaXVJGsvx
Explanation:
nssvxchjfshjascxjh
What is ecological succession?
A. Change that happens over time in an ecological community
B. A way a life
C. One person giving another person power
Answer:
A. Change that happens over time in an ecological community
Explanation:
Ecological succession is the change that happens over time in an ecological community. So, option (A) is the answer.
Answer:
A. Change that happens over time in an ecological community
Explanation:
Ecological succession is the gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing.
There are two main types of succession, primary and secondary.
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.
Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. For example, after felling trees in a woodland, land clearance or a fire.
A mutation that can be inherited by offspring would result from A) random breakage of chromosomes in the nucleus of liver cells B) a DNA base substitution in gametes during meiosis C) abnormal lung cells produced by toxins in smoke D) sun exposure of skin cells
Answer:
B) a DNA base substitution in gametes during meiosis
Explanation:
Which of the statements regarding the nitrogen cycle is true? a. Denitrification occurs when a nitrogen containing compound is produced from nitrogen in the soil. b. Atmospheric nitrogen is absorbed through the leaves of plants. c. Nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms. d. Animals obtain nitrogen through the process of cellular respiration
Answer: Option C
Explanation:
The nitrogen cycle can be defined as the process by which the nitrogen is being recycled. The nitrogen is transferred from the atmosphere to the plants and then from plants to animals, human beings.
Then from animals and human beings it is again transferred into the soil and then atmosphere.
The nitrogen that is found in the sol is not in the usable form by the plants, nitrogen fixing bacteria converts it into usable form.
What is the complementary mRNA sequence of this DNA sequence?
DNA sequence: TAC
How do you calculate the number of neutrons?
A. The same as the atomic number
B. Equal to the number of protons
C. Equal to the number of elections
D. Take the mass number and subtract out the atomic number
Answer:
D
Explanation:
D is correct take the mass number and subtract it
Answer:
D. Take the mass number and subtract out the atomic number
Explanation:
We should take the mass number and subtract out the atomic number to calculate the number of neutrons.
Which of the following combinations correctly represents the process of cellular
respiration?
A) Carbon Dioxide + Water + solar energy
Glucose + Oxygen
B) Carbon Dioxide + Water – Glucose + Oxygen + solar energy
C) Glucose + Oxygen - Carbon Dioxide + Water + energy
D) Glucose + Oxygen + energy
-
Carbon Dioxide + Water
Answer:
it's C
Explanation:
carbon dioxide and water are by-products...energy is also released during the process
Answer:
its c hoped this helped
Explanation:
The respiratory system involves the intake of carbon dioxide into the body and the release of oxygen from the body.
A. True
B. False
Answer:
The answer is false, we intake oxygen and exhale carbon dioxide
Explanation:
Answer:
Hi, there the answer false
Explanation:
What is the function of the stigma?
A. To catch pollen grains
B. To produce eggs
C. To attract insects
Explanation:
A. to catch pollen grains
is yr correct ans.
hope it helps
stay safe healthy and happy..Answer:
A. To catch pollen grains
Explanation:
The function of the stigma is to catch the pollen grains.
Help meeeeee plsssss! :)
1. What is facial reconstruction? Why is it used?
Answer:
Facial reconstruction is when you examine the bones of your face to figure out changes to make.
Why is phosphorus a limiting growth factor in terrestrial ecosystems?
Answer:
Because the quantities of phosphorus in soil are generally small, it is often the limiting factor for plant growth. ... Phosphates are also limiting factors for plant-growth in marine ecosystems, because they are not very water-soluble. Animals absorb phosphates by eating plants or plant-eating animals.
have a good day
#BRAINLESTPhosphorus is a limiting growth factor in terrestrial ecosystems because the quantity of phosphorus in soil are generally small it is often the limiting factor for plant growth.
What is the use of phosphorus in ecosystem?Phosphorus-based fertilizers boost the growth of plants on land, phosphorus in the ocean increase the production of microbes and small marine plants called phytoplankton, which compose the base of the marine food chain.
Phosphorus, like nitrogen, is a critical nutrient required for all life. The most common form of phosphorus used by biological organisms is phosphate (PO4), which plays major roles in the formation of DNA, cellular energy, and cell membranes (and plant cell walls). Phosphorus is a common component in commercial fertilizers.
We can say that phosphorus are very important factor for plant-growth in marine ecosystems because they are not soluble in water.
Therefore, Phosphorus is a limiting growth factor in terrestrial ecosystems because the quantity of phosphorus in soil are generally small it is often the limiting factor for plant growth.
Learn more about phosphorous here:
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someone help with this pls
Answer:
Invasive species in time destory biodiversity of an ecosystems
Explanation:
So lets go over what each answer is:
Invasive species are species that invade a ecosystem, and can harm other species and take over resources.
Populatiuons are what make up an ecosystem. There are many populations in a single ecosystem.
Biotic factors are the living things found in the world.
Abiotic factors are the opposite, being the nonliving things found in the world.
Looking at these, which would eventually destroy the biodiversity(variation of species) of an ecosystem?
This would be invasive species, for it is the only answer that harms it's ecosystem.
And this is correct, for invasive species often times can cause extiction of species, or even whole ecosystems.
For example of an invasive species, if a tree-consuming and widly reporudcing insect that lives in plains, invades a pine forest, it will eventually kill off all the trees in the area.
This wont only kill off the pine trees, but harms and could potentiallu kill the species that depend on the pine trees for survival.
Answer: invasive speices.
Hope this helps!
which of the following is an abiotic factor?
A. Predation
B. Rainfall
C. Cropping
D. Grazing
E. Migration
Answer: The answer is B. Rainfall
Explanation:
Good luck and hope this helps :)
What phase of mitosis is shown in the diagram below?
Answer: Its A. Prohase
Explanation:
Answer:
A . it's the prophaseExplanation:
prophase is the phase of mitosis in the diagram
Which is not true of selective breeding?
Selective breeding always produces unhealthy
offspring
Selective breeding can be used to weed out weak
genes.
Selective breeding can be used to pass on
desirable genes.
Selective breeding has been used by humans for
thousands of years.
Answer:
selective breeding always produces unhealthy offspring
Explanation:
false becasue its mostly healthy and dominant genes
Drag each tile to the correct location.
Identify which questions can be answered through science and which cannot.
Is it right or wrong to use genetic
engineering to produce new food
products?
What are the most common social
settings that tend to produce
accomplished artists?
Do the types of organisms found in
the fossil record appear in consistent
sequences in different parts of
the world?
If a new gene is added to the genome
of a tomato species, will that species
be more resistant to insects?
Are Michelangelo's paintings more
impressive than Rembrandt's?
Should humans use biotechnology
to bring extinct organisms from the
Answer:
What can be awnsered by science are question 1,3, and 4 (Going top from bottom). The rest cannot be answered by science. ((I'm not 100% but I'm pretty confident)))
The bacteria moves to areas of high oxygen concentration. Which process in the cell causes the bacteria to form these groups.
Answer: photosynthesis
Explanation: This is because it is a plant cell due to it having chloroplast
If blood is in short supply, which blood type would be the most beneficial to have on hand if someone needed a blood transfusion?
O+
O–
AB+
AB–
Answer:
-O
Explanation:
-O is the universal blood type, meaning no mater what blood type you have you can recive -O.
If blood is in short supply, the blood type that would be the most beneficial to have on hand if someone needed a blood transfusion is O+.
What is blood type?Blood type refers to a classification of blood that is based on the presence or absence of antigens in the red blood cells of an individual.
The blood types we have in humans are as follows:
AABBOBlood type O is regarded as a universal donor while blood type AB is regarded as universal recipient.
Therefore, If blood is in short supply, the blood type that would be the most beneficial to have on hand if someone needed a blood transfusion is O+.
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What is passive smoker ?
Answer:
hope it helps you
Explanation:
efarBfshdynsbzbts6y ucCuffuyndUmYN5cxhmyfz7g8U
Biodiversity is important to human society because it *
Answer:
Biodiveristy is important to humans because it provides a good functioning ecosystem that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
Explanation:
chlorophll absorbs what colors
Answer: Violet and orange
Explanation:
They absorb light of other wavelengths with less intensity.
which examples represent abiotic factors affecting biotic factors? Check all that apply
Answer:
ash from a volcanic eruption kills new plant growth.
warm water from a nuclear power plant causes overgrowth of algae.
a river floods and deposits tree pollen along its banks.
Explanation:
Ecosystem consist of biotic and abiotic elements. Biotic refers to all living organisms while abiotic refers to all non-living elements of the environment. Living organisms depends on abiotic factors such as light, temperature, water and soil etc for their growth and survival. In the above answer, Ash of volcano, warm water and rivers are abiotic elements while plant, algae and pollen are biotic elements.
Question 7 (1 point)
In which organelle does DNA replication take place?
a
lysosome
mitochondria
nucleus
ribosome
The answer should be nucleus
Which of the following proteins could be used in connective tissues, tendons, or hair?
Answer:The answer is B
Explanation: I did the test and it was correct
Collagen fibrous protein
option (B)
What protein is found in connective tissue?Connective tissue that provides support and framework for the body consists of fibrous proteins and nonfibrous ground substances in varying proportions depending on their functions.
Collagen, which is the most abundant protein, constitutes about one-third of all body protein.
Do proteins provide support for connective tissues?These fibers hold connective tissues together, even during the movement of the body. Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that after being stretched or compressed, it will return to its original shape.
Learn more about Collagen fibrous protein here
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What are the raw materials needed for cellular respiration?
A. carbon dioxide and glucose
B. water and carbon dioxide
C. sugar (glucose) and oxygen
Answer:
C. sugar (glucose) and oxygen
Explanation:
The sugar (glucose) and oxygen are the main raw materials involved in the cellular respiration process.
Which is an example of a vestigial structure?
A) The flipper of a whale
B) The wings of a bird
C) The tailbone of a human
D) The eyes of a bat
Answer:
C) the tailbone of a human
Humans no longer have tails due to evolution because we don't need them. The other answers are body parts that are useful to those animals.
Hope this helps!
