Answer:
When a seed, taken from a fruit, is planted and watered under the correct temperature, it breaks dormancy, and the embryo germinates; first, the root grows covered by root hairs, then the cotyledons appear, and finally, the plumule elongates to reach the light.
Explanation:
Fruit: It forms by the mature ovary of the flowers. This structure contains and protects the seeds in its interior. Its principal function is to transport seeds to a distant area away from the parental plant and let the new plant emerge under the correct environmental conditions. The fruit develops different strategies to accomplish its function. Seed: Refers to the fecundated and mature ovule. This structure is the typical dissemination and dispersion unit of spermatophyte plants. Seeds are formed of three tissues. An embryo. A seminal tegument that covers and encloses the latent embryo. And the endosperm -a nutritious tissue-. Seeds develop and grow under the protection of the fruit body. Embryo: It is formed after fecundation. It composes of growing cotyledons, an epicotyl, and a hypocotyl. The tegument and endosperm of the seed protect the embryo from dehydration and denutrition. Once the seed is in the correct place, the embryo grows and emerges. Cotyledon: The two first leaves of the embryo. They have reserve nutritive tissues to help the embryo grow. It also performs photosynthesis. The embryo usually develops one or two cotyledons and one radicule or root hair. Plumule: First shoot of the young emerging plant. When the embryo is growing, it elongates to reach more sunlight. Root hairs: Extention of the roots´ cells that look like hairs and whose principal function is to absorb nutrients and water from the ground. They can be found in the maturation area of the root. Germination: Process of development and the emergence of the embryo. These are a series of steps that must occur in the seed from the moment the embryo begins to develop until a newly emerged plantule is formed. For germination to occur, there must be the appropriate environmental conditions. Dormancy: Period in which an alive seed can not germinate because there is a condition inside the seed that does not allow germination to occur yet. The seed is in dormancy, but it keeps viability.PLEASE HELP!!!..........
Answer:
willows, lynx
Explanation:
QUESTION 5
What has caused the growth in demand for fish?
1. A reduction in the amount of cattle for beef production globally, due to its effect on deforestation
2. A switch towards healthier eating in Europe and fish being one of the only sources of protein for some
LEDCS - (Less Economically Developed Country)
3. Fish is a cheaper source of protein than any other, including vegetarian proteins
4. Population growth in nations like China & Japan whose uncontrolled fishing methods are removing too
many fish
O 1.-
2.-
3.-
4.-
Answer:
option 3 is the best choice.
Explanation:
i am Superior to all.
A. Red tailed hawks
B. White spruces
C. Red foxes
D. Lynx
Answer:
Red foxes
Explanation:
The arrow shows the transfer of energy from the shrew to the red fox
How do the organs of the excretory system work together to eliminate potentially harmful wastes from the body?
Answer:
This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall that carbon dioxide travels through the blood and is transferred to the lungs where it is exhaled.
Explanation:
Hope this helped you:D
The endocrine system includes specialized cells that help fight bacteria and viruses
True or false
Answer:
False, Immune.
Explanation:
This also might help with your assessment, https://quizlet.com/341036936/chapter-11-lesson-3-flash-cards/
A siamese cat can be one of three colors. Black(B) , Orange (O) or black and orange(BO).
What will be the result of crossing a purebred orange siamese cat with a hybrid (BO)?
Offspring Genotypes
Offspring phenotypes?
What type of inheritance is this?
Answer:
Offspring Genotypes - ½ BO : ½ OO
Offspring phenotype - ½ Black orange cat : ½ orange cat
Type of inheritance - Co-dominance
Explanation:
This question involves a single gene coding for skin color in Siamese cat. The alleles for orange color (O) and black color (B) are co-dominant i.e. they are both expressed in a heterozygous state.
According to the question, a purebred orange siamese cat (OO) was crossed with a hybrid cat (BO). The following gametes will be produced by each parent:
OO - O only
BO - B and O
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced from this cross:
½ BO : ½ OO
½BO - Black orange phenotype
½OO - Orange phenotype
- This type of inheritance is CO-DOMINANCE
Approximately time passes between B and F
Answer:
14 days
Explanation:
It takes 27 days for the moon to make a full rotation around the earth. Because half the of the rotation around the earth has been made, half 27. Half of 27 is 13.5, so the time between B and F is approximately 14 days.
How do some chemicals increase the risk of a person getting cancer ?
A. By causing an increase of toxins in the skin
B. By causing cell mutations
C. By causing a deficiency of vitamin D
D. By causing a decrease in the immune response
Some chemicals increase the risk of a person getting cancer by causing cell mutations. Hence, option B is correct.
What do you mean by Mutations?Mutations may be defined as the sudden, stable, and inheritable change in the genetic material of the living entities.
Chemicals like ethidium bromide, acridine orange, benzopyrene, etc are carcinogens, i.e. the agents of causing cancer.
These agents are responsible for causing mutations in the cell which leads to cancer.
Therefore, some chemicals increase the risk of a person getting cancer by causing cell mutations.
To learn more about Cancer, refer to the link:
https://brainly.com/question/11710623
#SPJ2
i need the answer quick please thanks!
Answer:
B!!!!!!!!!!!!!!!!!!!!!!
why cell called the functional and structural unit of life?
Answer:
A cell is capable of independently carrying out all necessary activities of life . So , they are called basic or functional unit of life .
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Why would scientists conduct research on a newly discovered alternative fuel?
A. To maintain the public dependence on fossil fuels
B. To maintain the success of the petroleum industry
C. To confirm that the alternative fuel is cleaner than fuels currently used
D. To confirm that the alternative fuel increases atmospheric carbon dioxde.
Answer:
C. To confirm that the alternative fuel is cleaner than fuels currently used
Explanation:
The current fuels from mining, cutting down trees and even transportation is bad for the atmosphere. These fuels cause climate change which could potentially bring a lot of dangers. The reason scientists would conduct research on a newly alternative fuel is so that the fuel would be a lot more cleaner which could prevent the dangers that are to come.
Why do plants hold on to a small amount of the
oxygen produced during photosynthesis for
use during cellular respiration?
Answer:
plants need to break down carbohydrates into energy. Oxygen is required to do this
Explanation:
YO PLZ HELP ME!!!!!
Fill in the blank(s):
A nerve ____________________ is an electrical signal that flows through the nervous system
Answer:
I agree with the other person who answer
have a good day :)
Explanation:
Explain why the one bone/two bone/many bones/digits limb pattern is important in explaining the origin of tetrapods.
Answer is in the file below
tinyurl.com/wpazsebu
Getting to know the number and pattern of bones in limbs is important to understand the evolution of tetrapods.
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Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. These fossils turn to be very useful while dating ages and studing evolutive processes.
Fossils provide good information about the existing relationship between ancient and modern tetrapods. Limb structures between these organisms are relatively similar. However, they can change in the number of bones and their arrangement pattern, reflecting the changes that species suffered through evolution.
The pattern in which the composing bones are arranged in limbs is useful to study tetrapods evolution, from a common aquatic ancient -fish- to modern terrestrial and aquatic tetrapods.
By looking at the number of limbs and digits, and the bones' pattern involved in these structures, scientists could interpret how evolutive processes occurred. Information about bones' density, length, and size, is also useful to understand the environmental pressures acting on the animals, and how the tetrapods managed to adapt.
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Related link: https://brainly.com/question/15289594?referrer=searchResults
A sound argument correctly applies deductive reasoning to true premises.
False
True
Calcium is a substance found in vitamins that people take to help strengthen their bones and teeth.
Which plant has been used for a similar purpose?
Answer:
B.) Horsetails!
Explanation: I got it right on the quiz! Good luck!
Answer: horsetails
Explanation: js trust me
Which is a question Lamarck MOST LIKELY would have asked when developing his evolutionary hypothesis? A. Is evolutionary change the result of survival of the fittest? B. Can body structures change according to the actions of the organism?
Answer:
id say b
Explanation:
how will cellular respiration affect oxygen levels
Answer:
Cellular respiration affects oxygen levels because cellular respiration removes oxygen from the atmosphere while oxygen levels puts it back but as carbon dioxide
Explanation:
I completed all my science courses already lol!
There are now several effective antimalarial drugs that can treat people who have malaria or prevent them from getting the disease altogether. Predict what will happen to the frequency of the sickle cell allele over the next 100 years as these drugs become more widely used by people living in areas where malaria is endemic: _____________ Predict what will happen to the frequency of the sickle cell allele over the next 100 years in areas like Boston MA, where there is no incidence of malaria: __________ stay the same ; stay the same decrease ; increase increase ; increase increase ; decrease decrease ; decrease
Answer:
decrease, decrease
Explanation:
By using antimalarial drugs in order to prevent malaria, the frequency of the sickle cell allele decreases in both areas where malaria is endemic and the areas where no incidence of malaria occurs because there is no necessity of sickle cell allele in the population to prevent malarial disease. Sickle cells have high significance in prevention of malarial diseases so when there is no malaria happens in the population so there is no need for it and the allele slowly removed from the population and decrease occurs in its frequency.
Can someone help me with his please?
5. Which is the complimentary DNA strand of the DNA strand:
ATGCATGCAATG * (T
(8 Points)
ATGCATGCAATG
TACGTACGTTAC
UACGUACGUUAC
TAGCATGCTTAC
None of the above
Answer:
TACGTACGTTAC (so the second one)
Which is the oldest religion in India?
O.Islam
O.Hinduism
O.Bhuddhism
O.Catholicism
What is the correct amino acid for the mRNA codon: UUG
A. proline
B. lysine
C. leucine
D. arginine
Answer:
C. leucine
Explanation:
Hope this helps
John's baptism of Jesus was different from his baptism of other people because:
Jesus was the last person John baptized
Jesus was the first person John baptized
John baptized unto the remission of sin, but Jesus had no sins to remit
Jesus was baptized in the Jordan River, John usually baptized in the Sea of Galilee
Answer:
John baptized unto the remission of sin, but Jesus had no sins to remit
Hope this helps:)
In humans, we have ____ pairs of autosomes and ____ pairs of sex chromosomes.
A. 1 and 22
B. 23 and 1
C. 22 and 1
Answer:
C, 22 pairs
Explanation:
Humans have 22 pairs of autosomes
7. How does independent assortment affect genetic diversity?
Why should a scientist repeat the same experiment several times before reporting the results?
Helpp
Answer:
Because is the systematic observation, evaluation of facts and ideas
Explanation:
In scientific methods you have to find the problem, find solution experiment on it several times so that it will be accurate enough then you draw conclusion that is why scientists experiment several times to verify the solution
Which of the following Identifies a water link between agriculture and urban need?
the loss of land used to construct new buildings
the loss of income from Import and export of food products
the loss of market value for agricultural products that are over produced
the loss of marshes and bogs that provide sources of freshwater used for drinking
Answer:
the loss of mashes and bogs that provide sources of freshwater used for drinking.
As the question says about the identification of a water link between agriculture and urban needs.
A source of freshwater is needed to obtain water ; thus loss of mashes and bogs that provide sources of freshwater used for drinking is the answer.
Answer:the loss of mashes and bogs that provide sources of freshwater used for drinking.
Explanation:
Internal feedback mechanisms keep your body in homeostasis as
A you breathe faster while slowing from a jog to a walk
O B. you breathe faster while running faster
O C. you breathe slower while you are bleeding
O D. you breathe slower while your heart rate increases
Answer:
the answer is A because it is the best answer
If an electrically neutral atom contains 16 protons, it must also contains 16 neutrons
true or false
Answer:
False
Explanation:
Well according to my thinking, it's not a must for it to have equal neutrons but electrons are the ones to be equal to the protons