Answer:
in some plants, the roots change their shape and get modified at absorb and transport water and minerals from soil to different parts of the plant. they are also modified for support, food storage and respiration. the roots modifications perform two major functions- physiological and mechanical
In Minnesota, ecologists want to restore an abandoned cow pasture into a prairie ecosystem. The soil in the abandoned pasture is homogenous with high nitrogen content and is dominated by bunch grasses that prefer high nitrogen conditions and inhibit the establishment of other native prairie plant species. The ecologists decide to introduce native pocket gophers to the prairie to facilitate the restoration. Which of the following factors is improved by adding pocket gophers to the abandoned pasture?
A. Interspecific plant interactions inhibit plant growth and establishment.
B. Colonization is limited by poor dispersing plant species.
C. Plant establishment is limited by suitable "safe" sites that are protected from weather extremes
D. Herbivory can restrict establishment of plants that are attractive to herbivores.
Answer:
The factor that is improved by adding pocket gophers to an abandoned pasture is:
B. Colonization is limited by poor dispersing plant species.
Explanation:
In ecological management, colonization describes the action by a plant or animal to establish itself in an area. When pocket gophers are added to an abandoned pasture, the area is repopulated by these rodents. By their nature, pocket gophers move some quantity of soil annually, thereby aerating the soil. Moreover, they build tunnels, which they later abandon for other species as natural habitat. They also leave some waste products to fertilize the soil, making the ecosystem alive again.
The structure composed of a sheet of simple squamous epithelial cells that's folded onto itself to form a double layer is a
Answer:
This question lacks options, the options are;
A. parietal layer.
B. serous membrane.
C. nuclear membrane.
D. mucous membrane.
The answer is B
Explanation:
The serous membrane is a covering membrane found in living systems. The serous membrane covers the surfaces of certain structures in the body such as heart, lungs etc. where they secrete lubricants that reduce friction during movement.
The structure of the serous membrane is composed of a sheet of simple squamous epithelial cells (secretes the lubricants) that folds onto itself to form a double layer. The layers are joined by a connective tissue.
The body is made up of systems that work together so that an organism can survive and grow. The musculoskeletal system contains muscles that move the body. How does the circulatory system help the muscles to function? OA. by transporting oxygen that can be used by the muscles to produce energy OB. by transporting oxygen that can be used by the muscles for sensing information OC. by transporting carbon dioxide that can be used by the muscles to produce energy OD. by transporting carbon dioxide that can be used by the muscles for sensing information
Answer:
yes
Explanation:yes
Question 3 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
O B. The cell works better when it contains fewer proteins.
O C. Transport proteins allow only enzymes to pass through the
membrane.
D. It is better for the cell if most molecules are prevented from
entering
SUBMIT
Answer:
D
Explanation:
Which of the following are the main parts of the cardiovascular system?
A. thymus, lymph, lymph nodes, spleen, and tonsils
B. esophagus, stomach, small intestine, and large intestine
C. nose, pharynx, larynx, trachea, and lungs
D. heart, arteries, capillaries, and vines
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HEART,ARTERIES,CAPPILARIES,AND VINES
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1. What was the dependent variable measured in the experiment?
A.the number of plants surviving after 30 days
B.plant height
C.pH of the water
D.the volume of water used to water the plants in the different groups
e. the mass of the plants in each group
Answer:
b.
Explanation:
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Answer:
ok
Explanation:
1. p
2. n
3. n
4. p
5. n
6. p
7.p
8. n
Sex linked genes are located on the
a. autosomes
b. the X chromosme only
c. the Y chromosome only
d. both the X and Y chromosomes
Answer:
d
Explanation:
Answer:
D. Both X and Y chromosomes
Explanation:
Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.
What is the correct order of carbon dioxide as it leaves the respiratory tract?
Answer:
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Explanation:
Carbon dioxide (CO2) is transferred from returning blood back into gaseous form in the lungs and exhaled through the lower respiratory tract and then the upper, to complete the process of breathing.
What are the names of the two imaginary lines that mark the end of the tropical zone around the equator?
Answer:
Tropic of Cancer marks the northern edge. Tropic of Capricorn marks the southern edge.
Explanation:
good luck
Answer:
longitude and latitude
In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring: If the purple parent is Pp
Complete question:
1) Inspired by Gregor Mendel, you visit a local greenhouse to see what a pea plant looks like in person. You spot a plant in the corner and immediately notice that it exhibits the purple trait of the flower color character. This character is controlled by one gene with two alleles, the dominant purple P allele, and the recessive white p allele. Identify what you know for certain based on your observation. Check all that apply.
You know the genotype of the plant. This plant has at least one copy of the P allele.This plant must be heterozygous with respect to the flower color gene.You know the phenotype of the plant.2) In another corner of the greenhouse, you find another pea plant. This plant, however, exhibits the white trait of the flower color character. The greenhouse plant breeder approaches you and mentions that he plans to cross-fertilize the two plants that you have seen. He offers to let you know how the offspring turn out. Without realizing it, the breeder is actually conducting a
dihybrid cross testcross monohybrid cross3) If you were able to examine hundreds of offspring from this cross, what ratio of purple flowers to white flowers would you observe:
If the purple parent is PP ---------If the purple parent is Pp ----------4) In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring:
If the purple parent is Pp? ----------If the purple parent is PP? ----------5) Based on the four offspring observed, you --------- (can/ cannot) know for certain whether the purple parent is Pp or PP.
Answer:
1)
This plant has at least one copy of the P allele. Because the plant is purple and the P allele is the one that codifies for this color. You know the phenotype of the plant. You can see that the plant has purple flowers, so you know its phenotype regarding flower color.2) A test cross
3)
If the purple parent is PP → 1:0 (100% heterozygous purple flowers, Pp)If the purple parent is Pp → 1:1 (50% Purple Pp, and 50% white pp)4)
If the purple parent is Pp? 3/4 = 75% purple and 1/4 = 25% whiteIf the purple parent is PP? 4/4 = 1 = 100% purple and 0 white5) Based on the four offspring observed, you CAN know for certain that the purple parent is Pp.
Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.
Explain how the process of photosynthesis could connect to a carbon neutral or carbon negative energy source
Here's link to the answer:
bit.[tex]^{}[/tex]ly/3a8Nt8n
Learn More:https://brainly.com/question/24212991
Which biome receives the most rain?
tropical rain forest
temperate rain forest
taiga
tundra
Answer:
A, Tropical Rainforest
Explanation:
They get the most rain, more than 66 inches every year
Describe two primary functions of the cell membrane.
Answer:
Explanation:
The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
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Body Systems and Organization
Answer:
the answer to the question is B
Answer:
B) The reproductive system.
Explanation:
The reproductive system provides humans with the ability to reproduce.
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The Hawaiian honeycreeper bird has a mutualistic relationship with the Hawaiian silversword plants. The Hawaiian silversword plants have been widely destroyed due to human development in the area
Which of the following explanations BEST predicts how human development will affect the Hawaiian honeycreeper bird population?
Answer:
The Hawaiian honeycreeper bird population will decrease because they rely on the Hawaiian silversword plants for survival.
Explanation:
The destruction of Hawaiian silversword plants due to human development hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.
What is the relationship between Hawaiian silversword plants and honeycreeper birds?Hawaiian honeycreeper bird has a mutual relationship with Hawaiian silversword plants, where the bird feeds on the plant's nectar and pollinates the flowers. If the plant population decreases, it will result in a reduced food supply for the bird which decreases their population size.
Loss of the silversword plants also destroys their habitat which can impact their population. Therefore, human development results in a decrease in the Hawaiian honeycreeper bird population.
However, the loss of the honeycreeper bird population also affects the ecosystem as they play a very important role in seed dispersal and plant reproduction which reduces plant diversity and also negatively impact other species that depend on the Hawaiian silversword plants for food.
Therefore, the destruction of Hawaiian silversword plants hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.
Learn more about Hawaiian silversword plants here:
https://brainly.com/question/9805219
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Muscles that produce movement in a single direction are
a. prime movers.
b. antagonists.
C. synergists.
O d. obliques.
What are the four kinds of acid precipitation ?
In the figure above, only the pathway labeled _____ requires oxygen.
a. A
c. C
b. B
d. A and B
Evolution can occur at different rates; however, for evolution to occur,
there must be *
A) variations within a species
B) extinction of the species
C) asexual reproduction
D) no change in the genes of an organism
Answer:
A (this is filler for the 20 characters needed)
explain how red colorblindness is inherited. why is this condition more common in males than in females
Answer:
From your parents DNA i believe
Explanation:
Darwin observed that finches’ _______ were specialized according to their unique environments.
Answer:
beaks
Explanation:
Write down the classes of foods digested in the gut from the mouth to the duodenum?
Explanation:
The chyme is gradually pushed down the duodenum by peristaltic waves which flow down the length of the digestive tract. Most of the digestion of the protein, fats and carbohydrate in the chyme is done by the enzymes in the duodenum, before the resultant mixture is passed further into the small intestine.
What does this timeline suggest about the feminist movement?
Answer:
B
Explanation:
Which statement is an example of a qualitative measurement?
A
That structure is four meters long.
B
Water can have a cold temperature.
с
This solution has a temperature of 56° C.
D
Light travels at 3 x 108 m/s.
Answer:
The correct answer is - B. Water can have a cold temperature.
Explanation:
Qualitative measurement is a type of measurement that is not based on numerical or numbers but is completely based on the quality of the particular thing. It can be distinguished on basis of the term quality which is based on the character of the substance or condition whereas quantitive is which is based on numerics or numbers.
Among these, all the three choices have numerical measurement but the choice in which it is expressed that water can have cold temperature is qualitative measurement as cold is the quality of the water here.
what is the final step in the water cycle?
Answer:
The funny thing is that the water that falls from the sky as rain today, might have fallen last week, last month, last year or thousands of years ago. It is the greatest recycler of all time! There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection.
The diagram below, best represents.
Answer:
B. An Ecosystem
Explanation:
A C and D do not fit the picture.
Polar Easterlies are winds that form at the ___ and the blow east to west
A.poles
B.west
C.east
D.equator
Answer:east
Explanation:
Polar easterlies are dry, cold prevailing winds that blow from the east. They emanate from the polar highs, areas of high pressure around the North and South Poles. Polar easterlies flow to low-pressure areas in sub-polar regions. Westerlies are prevailing winds that blow from the west at midlatitudes
Using the DNA strand below, select the answer choice that displays the correct polypeptide sequence. DNA TAC/GCA/TTA/GGC/AAC/ACT a Meth-Ile-Pro-Gln-Leu-stop b Meth-Arg-Val-Ala-Trp-stop c Meth-Arg-Asn-Thr-Ala-stop d Meth-Arg-Asn-Pro-Leu-stop
Answer:
d Meth-Arg-Asn-Pro-Leu-stop
Explanation:
This question is describing the processes of transcription and translation of protein synthesis. Transcription is the synthesis of mRNA from DNA while translation is the synthesis of amino acid from mRNA. In this question, the following DNA sequence is given:
TAC/GCA/TTA/GGC/AAC/ACT
- Following the complementary base pairing rule i.e A-U, G-C, T-A etc, the following mRNA transcript will be produced after transcription:
AUG/CGU/AAU/CCG/UUG/UGA
- Using the genetic code, the following amino acid sequence will be produced from the above mRNA sequence after translation:
Methionine/Arginine/Asparagine/Proline/Leucine/STOP.