Politics plays an active role in relation to space travel, as an example we can mention the space race during the Cold War.
What was the space race?It was the dispute for hegemony in space exploration between the United States and the Soviet Union in the period from 1957 to 1975 during the Cold War, which was a geopolitical conflict. This period was marked by major technological developments.
Therefore, the policy is an instrument capable of influencing space travel in order to generate collaboration and competitiveness between countries, being a positive instrument for further development in space exploration.
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Answer: Politics plays an active role in relation to space travel, as an example we can mention the space race during the Cold War. The space race was the dispute for hegemony in space exploration between the United States and the Soviet Union in the period from 1957 to 1975 during the Cold War, which was a geopolitical conflict. This period was marked by major technological developments.
Explanation:
How many units of energy would there need to be in the first trophic level to end up with 1000 units of energy in the second? in the third? in the fourth?
Answer:
(First) 10,000--->1000--->100-->10 (fourth)
Explanation:
Each trophic levels gets reduced by factor of 10.
Thus if you start with 10,000 in first, then you end with 1000 in second, 100 in third and 10 in forth.
Why is hair follicle and hair shaft important ?
Answer:
A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
Explanation:
the brain is an organ in the nervous system.
which of the following is true about the brain?
choose 1 answer:
(A) the brain is made up of a single type of tissue.
(B) the brain is made up of different tissues that carry out the same function.
(C) the brain is made up of tissues with different functions that work together.
Answer:
(C) the brain is made up of tissues with different functions that work together.
This is a short, white and fluffy
feather. What type of feather
is this?
A. Pennaceous
B. Down
C. Contour
D. Flight
Answer:
letter B is the answer
Explanation:
down yes letter b
cells must control gene expression so that
The study of normal tissues, or groups of cells and their surrounding extracellular materials, is called:.
Answer:
the study of tissues, or groups of cells and their surrounding extracellular materials, is called Histology.
Cytokinesis is when the cell
separates into two identical
daughter cells. Cytokinesis is
which phase of cell division?
Answer:
D.) Last
Explanation:
If cytokinesis is when the cell separates into two identical daughter cells, this means that DNA replication and mitosis must have already occurred. The duplication of the parent cell's DNA and organelles is what makes the daughter cells identical. These processes must occur before the cell literally divides.
photosynthesis takes place inside organelles called
Which rna carries amino acids to the ribosome and helps translate a coded message?.
Which star is part of our galaxy?
•Ursa Minor
•Sun
•Schedar
•North Star
Please help!!!
Some plant species and animal species depend on each other. Which of these animals help thousands of plant species to reproduce?.
Answer:
bees, birds, butterflies, bats, but mostly bees.
Explanation:
When many different species live in an environment, the environment has high . if the number of predators increase in an area, the immediate effect will be a .
When the number of predators increase in an area, the immediate effect will be a decrease in number of prey.
What is a predator?A predator in an environment is an animal that kills other smaller animals in its niche for food.
The prey us the smaller animal that is being killed. Therefore when there is increase in the number of predators in an environment, the prey will decreases.
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The thin layer of cells that makes up the interior lining of the blood vessels is called the Select one: a. mucosa. b. epithelium. c. endothelium. d. connective tissue. e. lymphoid tissue.
Answer:
C. The endothelium is the thin layer of cells that makes up the interior lining of the blood vessels
6. An important role of bicarbonate ions in human blood is to
(A) carry oxygen
(B) act as a buffer
(C) bind with hemoglobin
(D) supply cells with carbon
(E) increase the rate of cellular respiration
Bicarbonate ions present in body performs a variety of functions, in blood it carries carbon dioxide. Its other functions include keeping the balance of acids and bases in the body. It acts as a buffer.
What is a buffer?Buffer is a type of solution that resists pH change either by the addition of acid or base.
Bicarbonate is a base, which the body requires to keep a normal acid-base (pH) balance.
This balance prevents the body from having too much acid means maintaining buffer. The lungs and kidneys helps to keep a normal blood pH by removing excess acid.
Thus, the correct option is B.
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Why the leaves are green
why we find the soft parts still
remaining in a Fossil, if it trapped
in amber, or ice?
Answer:
Why dont soft parts usually leave fossils?
The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts. One reason for this is that scavengers generally do not eat these parts. Hard parts also decay more slowly than soft parts, giving more time for them to be buried.
Explanation:
yeah
I just need a description of what role bees play in pollination (it’s horticulture) btw
Answer:
Bees are essential for the growth of flowers and plants. They use the process of pollination where they transfer small grains of pollen from one flower of the same plant to another flower of the same species. This pollen transfer helps the flowers to get continuous growth.
Explanation:
Answer:
In the nature, plants reproduce s*exually but unlike many organisms, they do not directly mate with their opposite gender for reproduction. Their mechanism of reproduction in short is that male flowers produce pollens (yellow, powdery type thing) in thei anthers (male fower gamet) and when these pollens get contact with the female flower's stigma, the pollen fuses with the ovule and produces a fruit containing the seed.
Now how do we get these pollens moving from anthers to stigma? There are two ways. The first is by wind, when wind blows, it carries the lightweight pollens through the air and it falls onto a female flower.
the second one is by bees.
Those flowers produce nectar deep in the flower which can be sensed by bees. Bees enter the flower to collect the nectar while pollens are stuck on to its body. The bees travel to another flower for collecting nectar and when they do, the pollens from the body enter the stigma.
2. Describe the role of the following in maintaining a constant body temperature in humans:
(b) The muscles:
Answer:
Muscles can also receive messages from the brain when the body temperature decreases. They respond by shivering. Shivering causes the muscles to contract and relax quickly. This process generates heat.
When a person pulls a bow back to shoot an arrow, what type of movement are they making?
Answer:
Kinetic Energy
Explanation:
An arrow that is being pulled back is building Kinetic Energy.
What is the branch of biology that investigates cells called?.
Answer:
The branch of biology that studies the cell and its process in detail is called cellular biology or cytology
Explanation:
This includes studying their structure, functions, and biochemical processes.
The branch of biology that investigates cells is called cell biology.
What is cell?Cell is the smallest unit in biology that can sustain life on its own and makes up all living things as well as the body's tissues.
The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.
The study of cell structure and function is known as cell biology, and it is based on the idea that a cell is the basic building block of all life.
A thorough grasp of the tissues and organisms that cells make up is made possible by concentrating on the cell.
Thus, cell biology is the branch that investigates cells and its structure and functioning.
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Multiple choice: Circle the best answer.
a
The height of a plant is likely to be determined by
a. genetic factors.
b. factors in the environment.
C. both genetic and environmental factors.
d. neither genetic nor environmental factors.
What happens in the original cell so that each of the daughter cells has a complete set of chromosomes
Answer:
The DNA gets copied equally through a process called mitosis and the copied DNA(chromosomes) are split equally among the daughter cells.
What are the similarities between dna and rna molecules? (4 points)
a double stranded helix, a phosphate group, and a hexose sugar
a nitrogenous base, a phosphate group, and a pentose sugar
a nitrogenous base, an amino acid, and a pentose sugar
a single stranded helix, a phosphate group, and a pentose sugar
Answer:
a nitrogenous base, an amino acid, and a pentose sugar
DNA and RNA molecules share several similarities in their structures. Both consist of a nitrogenous base, a phosphate group, and a pentose sugar. However, they differ in their helical structure, with DNA typically being double-stranded and RNA single-stranded. Thus, correct option is (B).
Ribonucleic acid and deoxyribonucleic acid are two chemicals that are crucial for genetics and other biological processes. Both of them contain pentose sugars, phosphate groups, and nitrogenous bases. Adenine (A), cytosine (C), and guanine (G) are the nitrogenous bases in both DNA and RNA; thymine (T) and uracil (U) are also present in both.
Although they both include a phosphate group and a pentose sugar (deoxyribose in DNA and ribose in RNA), the structural configurations of DNA and RNA are different. The two strands of DNA are typically kept together by base pairing to create a double helix. The majority of RNA, on the other hand, is single-stranded. Their functions and cellular processes are different as a result of this structural heterogeneity.
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a
3. Choose the correct answer.
In plant cells the pigment that allows for the food-making process is:
chlorophyll
glucose
carbon dioxide
O cellulose
oxygen
Answer
chlorophyll
Explanation:
Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis
the special type of cell division required to produce gametes is called
Answer: Meiosis
Explanation:
Meiosis creates gamete "daughter cells" that have half the chromosomes as a normal cell that would be created during mitosis, which is the division and reproduction of identical cells from the parent. In humans, a regular 46 chromosome cell divides through meiosis to create gametes with 23 chromosomes. This is important to be sure that an organism that is made through reproduction with sperm and egg has the correct number of chromosomes.
You are studying the phenotypic traits of bone density and muscle mass in cattle and find that the two traits have a correlation coefficient of -1.0. What is the interpretation of this statistic
A correlation coefficient of -1 means that bone density and muscle mass are perfectly correlated but in opposite ways.
Correlation coefficientThe correlation coefficient, r, is a measure of the strength of the relationship between two variables.
r = 0 means that the two variables in question have no relationship, r = 1 means that the two variables are perfectly correlated in the same way, and r = -1 means that the two variables are perfectly correlated but in opposing ways.
The implication of the -1 correlation coefficient is that bone density increases with decreasing muscle mass and vice versa.
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Hi! I need some help with this. (Btw ignore the crumbled paper, I was having a breakdown.) Thank you!!
Answer:
Explanation:
Answer:
Explanation:
1. Producers make their own food, so option C.
2. Consumers eat others cuz they can't make their own food, so option G.
3. Herbivores (like cows) eat producers (like grasses, plants etc.), thus option E.
4. Carnivores (like tigers) eat other consumers (like cows, deers, even baby tigers) so option H.
5. Omivores eat everything (plants or animals) like humans thus option J
6 Decomposers (like fungi) break down dead stuff so option A.
7 Biotic means living things, thus option F
8 Abiotic is non-living things, thus option B.
9 Mutualism means both animals benefit from helping each other out, option D.
10 Parasites (like leech) harm the host and benefit themselves, thus option i
11 Commensalism means one benefits but the other one is not benefit or harmed, option S
12 P
13 L
14 R
15 N
16 T
17 M
18 Q
19 K
20 O
Not 100% sure on 12, 18-20 but everything else should be right.
How are viral diseases different from
other types of diseases?
A. there aren't medicines to cure a viral disease
B. viruses spread quickly
C. it infects healthy cells
D. it causes an immune response
According to the research, viruses spread quickly is the statement that describes how viral diseases differ from other types of diseases.
What is a virus?It is a biological entity that has the ability to self-replicate by using cellular machinery.
It requires the metabolic machinery of the invaded cell, in order to be able to replicate its genetic material and produce many copies of the original virus quickly, this process can harm the cell to the point of destroying it.
Therefore, we can conclude that according to the research, viruses spread quickly is the statement that describes how viral diseases differ from other types of diseases.
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Based on the graph, it can be concluded that the isotope which is most likely to be found with 6.25% of its original amount in 6 billion years is
Uranium-238
Thorium-235
Potassium-40
Rubidium-87
Potassium is most likely to be found with 6.25% of its original amount in 6 billion years because the half life of Potassium-40 is 1-1.5 billion years in graph. Thus the correct option is C.
If it half in 1 to1.5 billion years = 50% gain
1-1.5 billion years = 25%. gain
If we do that 2 more times we will get 12.5% and then 6.25% gain.
What is half life?
Half life is defined as the time required for half of the atoms of a radioactive substance to become disintegrated.
Our estimate is about 1-1.5 billion years so repeating that about 4 times we get around 4-6 billion years for it to gain 6.25%. From this it can be concluded that Potassium-40 as since it comes the closest to remaining at 6.25% its original amount after approximately 6 billion years.
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what is needed to create a self-sustaining ecosystem inside of a dome?
