Answer:
A carbohydrates
Explanat
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!
Carbohydrates provide the body with
A-the major constituent for cell membranes
B- a readily available source of energy
C-long-term energy storage
By which method of transport can large substances enter a cell?
Answer:
endocytosis
Explanation:
tama iyan...
What are 3 issues about habitat loss.
Answer:
Pollution,invasive species, and disruption of ecosystems processes such as changing the intensity of fires in an ecosystem these are some of the ways habitats can become so degraded and they no longer support native wildlife.
Which hormone is responsible for controlling sperm production?
Answer:
The most important hormone involved in controlling sperm production is a steroid called testosterone. This is produced in the testis itself, by the Leydig cells (see Figure 12a). The testosterone is released from the Leydig cells between the tubules, and taken up by the neighbouring Sertoli cells.
Answer:
The most important hormone involved in controlling sperm production is a steroid called testosterone.
Help is this co-dominance or incomplete dominance?
Answer:
i can't see
Explanation:
What is the main function of leaves?
A. Leaves provide support for growth and a place to store food.
B. Leaves provide a place for photosynthesis to occur.
C. Leaves absorb water and minerals and transport nutrients to the stem.
D. Leaves create a barrier that prevents water in the plant's tissues from evaporating.
Answer:
B. Leaves provide a place for photosynthesis to occur.
-------------------------
hope it helps..
have a great day!!
Answer:
B. Leaves provide a place for photosynthesis to occur.
Explanation:
The main function of leaves is to provide a place for photosynthesis to occur.
What is the complementary mRNA sequence of this DNA sequence?
DNA sequence: TAC
Which of the following is the most likely function of this shape?
A. To attract birds to nest in the branches
B. To keep cool during the summer
C. To allow snow to fall rather than get caught in the branches
D. To detect the environment
Answer:
The answer is C
Explanation:
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 :)
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.
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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.
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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
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.
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.
uhmmmmmm i need help asap!!! plss and thanks lol
Answer:
C
The while reason we wash fruits and vegetables before consumption is because we need to wash off the pesticides
which of the following best identifies some of the transport substances in animals?.
A. amino acid
B. hormones
C. glucose
Answer:
Hormones
Explanation:
Hormones travel through the body
Hormones BEST identify some of the transport substances in animals (Option B).
Hormones are chemical messengers that serve to communicate cells in the body of animals.Hormones play fundamental roles during cellular development and differentiation.An example of a hormone can be estrogen, which is fundamental during the differentiation of reproductive tissue.In conclusion, hormones BEST identify some of the transport substances in animals (Option B).
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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 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
Question 16
Which statement regarding succession is NOT true?
Succession is a sequence of changes in the species composition of an ecosystem
1 Secondary succession occurs when one community of organism replaces another
2 Succession that occurs after a volcanic explosion would be followed by primary succession
O A forest fire that destroys an ecosystem would be followed by primary succession
Answer:
adsf
Explanation:
afsd
The chromosomes line up at the equator, or middle of the cell in which phase of mitosis?
O Prophase
O Metaphase
Anaphase
O Telophase
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:
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 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.
When might self-fertilization be beneficial for a plant? When there are too many dioecious individuals in a population, self-fertilization becomes beneficial for a monoecious individual. When environmental conditions are harsh, such as a plant growing in nutrient-poor conditions, or when herbivores have damaged the plant, plants may self fertilize. When environmental conditions are perfect, plants can afford to self-fertilize. Only plants with perfect flowers are capable of self-fertilization.
Answer:
Only plants with perfect flowers are capable of self-fertilization.
Explanation:
Self-pollination is the process that allows plants to fertilize themselves. This process is very beneficial when a plantation has plants with few flowers or when the plants are spaced far apart.
However, only plants with perfect flowers can self-fertilize. This is because for self-fertilization to occur, the plant needs to have flowers that present the male and female reproductive organs, which allows the same flower to produce pollen that will be sent to its own ovary. Only perfect flowers have male and female reproductive organs at the same time.
A Endometriosis is a condition that occurs in some women , causing multiple cells or layers of cells to grow outside of the uterus. In some cases , these growths can actually cover the entire ovary or cause the tube leading from the ovary to the uterus to be blocked. The diagram represents the female reproductive system . structures , A and B are labeled Zoom Select structure A or B and indicate your selection . Describe specifically how the growths that are characteristic of endometriosis at the location you selected affect the ability of a female to become pregnant
Answer:
sorry bro i need points
Explanation:
sorry sorry sorry
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!
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)))
chlorophll absorbs what colors
Answer: Violet and orange
Explanation:
They absorb light of other wavelengths with less intensity.
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.
