Answer:
D. a mature pollen
Explanation:
Answer:A plant seed is formed from a fertilized egg.
What is a seed?A seed is an embryonic plant enclosed in a protective outer covering. The formation of seed begins with fertilization, which occurs when the pollen from the male reproductive organ (stamen) fuses with the female reproductive organ (pistil). The fertilized ovule develops into a seed that contains the embryonic plant and a supply of nutrients to support its initial growth until it can begin photosynthesis. The seed coat is the outer covering that protects the embryo from desiccation, disease, and physical damage.
Explanation:
how can you explain what you know about the heavily muscled cows with what you have learned about mutations, patterns of inheritance, incomplete dominance, sexaul reproduction, selective breeding and transferring of genetic information?
Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.
The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps
HELLLLLLLLLPPPPPPPPP
Use examples to explain how the hydrosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. (7 points)
2 . Use examples to explain how the atmosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences.
Answer:
1. All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... Flooding rivers wash away soil.
2. All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... water evaporates from the ocean into the atmosphere.
Explanation:
Which type of succession (primary or secondary) is going to have the biggest impact on an ecosystem?
Answer:
Secondary succesion because secondary succession follows a major disturbance, such as a fire or a flood.
Answer: The secondary succession is going to have the biggest impact
Explanation:
What is the greenhouse effect?
Answer:
The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere. Radiatively active gases in a planet's atmosphere radiate energy in all directions.
Explanation:
HELP ME WITH THIS I WILL GIVE BRIANLISSST
Answer:
resources are used to give the plant more energy and energy is used to help develop the fruit. kind of like when humans are pregnant. we tend to eat more food and be hungrier than usual because we have an extra person to feed, so we need more resources and energy.
Answer:
what that person said
Explanation:
There is more biodiversity
Answer:
Would you like help with anything about biodiversity? I'd be glad to help! :D
Need help on this question 50 POINTS WILL GET BRAINLYEST!!!!!!!!!!!!!!! this is 4 Scince.
What happens when a parking lot is built in a wetlands area?
Less precipitation occurs in the area because it has no place to be absorbed by the ground.
The wetlands area moves to a new location alongside the parking lot.
Runoff carrying pollutants, organic material and excess nutrients flows directly into lakes and rivers.
Rain percolates through the pavement into the ground below, causing cracks in the pavement.
Answer: the 3rd one
Explanation:
What is the main cause of poor air quality and acid rain in Shenandoah national park?
Sulfur and nitrous oxides from coal burning and automobiles
Carbon dioxide and methane from automobiles and coal burning along the Ohio river
Organic compounds from automobiles and coal burning along the Ohio river
Methane and CFCs from automobiles and coal burning along the Ohio river
Answer:
The main cause of poor air quality and acid rain in Shenandoah National Park is sulfur and nitrous oxides from coal burning and automobiles.
Explanation:
Please answer!!
What is the system protects the body against infections?
a
Circulatory system
Respiratory system
b
С
Immune system
d
Digestive system
Answer:
C. Immune system
Explanation:
The characteristics of an organism are listed below (the picture below)
In which kingdom would the organism be classified?
A) Animalia
B) Bacteria
C) Archaea
D) Plantae
Answer:
d
a...............................
Scientists are studying a new organism that was recently discovered. The organism
was observed and was found to have the following characteristics: (picture down below)
What is the best classification for the new organism?
A) Fungi
B) Plants
C) Animals
D) Bacteria
The characteristics of a particular organism are listed below. (The Picture)
In which kingdom should this organism be classified?
A) Eubacteria
B) Animalia
C) Plantae
D) Fungi
Which of the following is an example of an active transport mechanism?
protein channel
sodium-potassium pump
potassium channel
facilitated diffusion
Answer:
sodium-potassium pump
which best summarizes organ systems
a. a group of organelles working together to perform a certain job
b. a group of tissues working to perform a certain job
c. a group of Organs working to perform a certain job
d. a group of cells working together to perform a certain job
Answer:
I think A could be the correct answer
What process of the carbon cycle is likely causing the increase in carbon dioxide levels shown in the graph below?
OMGGG PLEASEE HELPP
Use the particle theory of matter to explain the connection between air pollution and the disposal of industrial wastes.
Answer:
See Explanation
Explanation:
This study examined the atmospheric pollution created by some waste treatment and disposal facilities in the State of Kuwait. Air monitoring was conducted in a municipal wastewater treatment plant, an industrial wastewater treatment plant established in a petroleum refinery, and at a landfill site used for disposal of solid wastes. Such plants were selected as models for waste treatment and disposal facilities in the Arabian Gulf region and elsewhere. Air measurements were made over a period of 6 months and included levels of gaseous emissions as well as concentrations of volatile organic compounds (VOCs). Samples of gas and bioaerosols were collected from ambient air surrounding the treatment facilities. The results obtained from this study have indicated the presence of VOCs and other gaseous pollutants such as methane, ammonia, and hydrogen sulphide in air surrounding the waste treatment and disposal facilities. In some cases the levels exceeded the concentration limits specified by the air quality standards. Offensive odors were also detected. The study revealed that adverse environmental impact of air pollutants is a major concern in the industrial more than in the municipal waste treatment facilities but sitting of municipal waste treatment and disposal facilities nearby the urban areas poses a threat to the public health.
The idea that a species that is best suited for a particular environment will survive and reproduce is called: a. evolution c. adaptation b. natural selection d. species diversity
Answer:
natural selection :)
Explanation:
SPACE! What is a main sequence star? What event causes a star to leave the main sequence?
Explanation:
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
The table lists characteristics of a specific taxonomic classification. (the picture below)
Which kingdom is best described by these characteristics?
A) Kingdom Eubacteria
B) Kingdom Fungi
C) Kingdom Archaeabacteria
D) Kingdom Protista
List three parts of the scientific definition of the word "population."
Answer:
cevap:
Merhaba Kız Burada Cevap: 1a : bir ülke veya bölgede insan veya sakinlerin tam sayısı.
b : bir alanı işgal eden veya bir bütün oluşturan bireylerin toplamı.
c : belirli bir enerji seviyesindeki parçacıkların toplamı — özellikle lazerdeki atomların kullanılması.
Explanation:
giving brainiest
An area with a large population of valuable ocean organisms is called a(n) a. aquaculture. b. sustainable yield. c. fishery. d. neritic zone.
Answer:
the answer to that is A aquaculture
hope this helps pls give me brainless
Answer:
neritic zone
Explanation:
same thing from SL thx for helping.
Reflect again on competitive relationships. What would happen if the factor became more abundant or unrestricted?
Answer:
If a factor became more abundant, there would still be competition, but there would be less. *See below for an explanation that makes a little more sense (No, I am not sending you a link)*
Explanation:
In every ecosystem, there is competition. The competition could be for mates, food, shelter... anything, really. However, when those resources become more prevalent, there still might be competition, but there would probably be less than before. Let's try an example: Imagine that we were about to endure an incredibly strong hurricane. If you have ever prepared for a hurricane, you would most likely understand that if you get to the stores too late, there most likely wouldn't be much to choose from. Everything would be cleared from the shelves. Now there is competition for resources such as food and water that we would need to spend several days without power and electricity. However, if the shelves were to restock and everything is replenished, there wouldn't need to be any fighting over toilet paper, right? The same happens with plants and animals. If there is a sudden abundance of resources, they no longer need to compete so aggressively. *You might also see an increase in population, too*
Sorry, I gave such a wordy answer. I just really, really, really want you to understand so you good grades. I hope you understand :) :) :)
If the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.
What is Competition?Competition may be defined as a type of species interaction that significantly affects both species negatively because both species here compete for the same resources. It is a type of negative-negative interaction.
According to the context of this question, if a factor or resource remarkably increases its abundant and became unrestricted, it will definitely lead to the process that increases the competition between two or more species. This is because it allows the organisms to move away from their original niches.
Therefore, if the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.
To learn more about Competition, refer to the link:
https://brainly.com/question/10846994
#SPJ2
Read the scientific question below.
"Is air pollution related to lichen growth?"
What is a likely hypothesis for the question? (5 points)
a
Air pollution must affect lichen growth.
b
No, air pollution does not affect lichen growth.
c
If air pollution is high, then lichen growth is high.
d
If air pollution is high, then lung disorder cases are high.
I WILL GIVE BRAINLIEST IF ANSWER IS CORRECT! Hurry I cant leave this exam!
Which of the following most likely happens when we exercise?
The heart rate slows down because the blood vessels have less blood to circulate.
The heart rate slows down because the blood vessels have more blood to circulate.
The heart pumps faster so that the blood vessels can carry more oxygen to some cells.
The heart pumps faster so that the blood vessels can carry more carbon dioxide to some cells.
The granite was helpful in helping the team find the lowest gravity spot because of its low
Answer:
BMI
Explanation:
Yaas
what is the defenition of state (in science)
how many stem cells are there? name them all.
What molecule does the mitochondria break down?
Group of answer choices
lipid
glucose
protein
starch
SPACE!
Describe each of the following.
a. Nebula-
b. Protostar-
c. Red Giant-
d. White Dwarf-
e. Red Super Giant-
f. Supernova-
g. Neutron Star-
h. Black Hole-
Answer:
Nebula: is an interstellar cloud of dust,hydrogen, helium and other ionized gases.
protostar: is a very young star that is still gathering mass from its parent molecural cioud.
Red Giant: is a luminous giant star of law or intermediate mass in late phase of stellar evolution.