Explanation:
The oldest fossil evidence of seed plants is of Late Devonian age, and they appear to have evolved out of an earlier group known as the progymnosperms. These early seed plants ranged from trees to small, rambling shrubs; like most early progymnosperms, they were woody plants with fern-like foliage.
Guess why most leaves are wide and thin.
Answer:
Due to their broad surface areas, green leaves can absorb more sunlight at a given time, and due to the thinness of the leaves, the light energy can easily penetrate the leaf surface and be trapped by the chloroplasts. This makes photosynthesis efficient. Therefore, green leaves are thin and broad.
Explanation:
Hope this helps you......
E
Since the 1960s, the Medicare and Medicaid programs have successfully
reduced discrimination against minorities in renting and housing.
increased the number of college graduates among all groups.
reduced the amount of military spending in the national budget.
O increased the number of people who have health insurance.
Answer:
The correct answer is - increased the number of people who have health insurance.
Explanation:
Medicare and Medicaid are the federal health insurance programs introduced during the early 60s to cover all the expenses on the health issues of people over 60 or above. It is controlled by the federal agency.
It is increased in great number since the 1960s which helps elderly people of the US to cover all the expenses they spend on their health issues and diseases.
Since the 1960s, Medicare and Medicaid programs have increased the number of people who have health insurance.
How does Medicare work?Established in 1966, Medicare is funded by Social Security and provides care for people over 65 who have contributed health tax payments during their working years. It also provides coverage for people with disabilities or conditions that prevent them from working.
From this information, we can conclude that since the 1960s, Medicare and Medicaid programs have increased the number of people who have health insurance.
Learn more about health in brainly.com/question/13179079
What is the main source of raw material for the production of plastics?
Answer:
Crude oil is the main source
Explanation:
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Answer: its diamond
Explanation:
You were with your younger cousin playing at the park and he has mixed up his legos in the sand.
Explain how you could separate this mixture.
Answer:
You can use a tea net to separate the Legos and the sand. When you scoop up the sand into the net, the sand will be sifted away because it is smaller than the holes in the tea net. But, the LEGOs are much bigger, so they will remain inside the net.
In a histology section of the digestive tract, you observe that the mucosa is made of simple columnar epithelium and the tissue has three layers of smooth muscles. This section represents ________. In a histology section of the digestive tract, you observe that the mucosa is made of simple columnar epithelium and the tissue has three layers of smooth muscles. This section represents ________. duodenum large intestine stomach esophagus
Answer:
The correct answer is - stomach.
Explanation:
The stomach is the only part of the digestive tract among the duodenum, large intestine, stomach, and esophagus that has three layers of smooth muscle.
The duodenum, large intestine, and esophagus simple columnar epithelium, and others have two -layers of smooth muscles and have simple columnar epithelium. This suggests that the mucosa is the section of the stomach in the digestive tract
HELP PLS
Below is the 5' to 3' original strand of DNA. Please use the DNA from Sample #1 to
answer the questions below.
Sample #1
5'CAGGCT 3'
Create the 3' to 5' complementary DNA strand for sample #1 using the correct
base pairing rules.
Your answer
Transcribe the mRNA strand from the 3'to 5' complementary DNA strand. 1 point
Your answer
Isabel is 16 years old and preparing to take a final exam. Her good friend has a list of the possible essay questions that were taken from the teacher's desk and asks Isabel if she would like to look at it. Isabel chooses not to look at the essay questions. According to Kohlberg, why might Isabel have made this decision? Be sure to describe the stages of Kohlberg's theory of moral development in your response.
Answer:
According to Kohlberg, Isabel might have made this decision in order to maintain social order.
Explanation:
There are six stages in Kohlberg's theory of moral development. They include;
Stage 1 Pre-conventional (Common among children under the age of 9)
Obedience and punishment orientation Self-interest orientationStage 2 Conventional (Common among pre-teens, teens, and some adults)
Interpersonal accord and conformity Authority and social-order maintaining orientation:This is the stage Isabel is in. Isabel recognizes that the law is against cheating and she reasons on how her own personal actions would negatively affect the society. Therefore, she choses to play her own role by desisting from cheating even if her friend is doing it.
Stage 3 Post-Conventional (rarely displayed by some adolescents and adults)
Social contract orientation Universal ethical principlesWhich of the following are filled with synovial fluid?
a) articulated cartilage
b) menisci
c) bursar
d) ligaments
Shura listed the steps for protein production in cells.
1. A strand of RNA is made.
2. RNA leaves the nucleus.
3. RNA moves to the ribosome.
4. A protein is made.
Which step is missing?
A. DNA unzips after step 1.
B. DNA unzips before step 1.
C. DNA is replicated after step 3.
D. DNA is replicated before step 3.
Answer:
B. DNA unzips before step 1.
Explanation:
This question is describing the process of gene expression, which is made up of two major stages namely; transcription and translation. Transcription is the process by which mRNA is synthesized from a DNA template while translation is the process where protein (amino acid sequence) is produced using the mRNA transcript.
This stages of gene expression has been summarized in the steps listed by Shura. However, prior to the formation of an mRNA molecule in step 1, the double stranded DNA has to unwind i.e. separate into single strands as initiated by the enzyme RNA polymerase. Therefore, the list should read as follows:
- DNA unzips
- A strand of RNA is made.
- RNA leaves the nucleus.
- RNA moves to the ribosome.
- A protein is made.
how does shell color work to protect the egg from sunlight?
Answer:
Birds that live in cool climates lay darker eggs, as darker colors absorb more heat from the sunlight
Birds that live in hotter climates lay lighter eggs to prevent the egg from overheating.
The pigmentation acts to thermo-regulate the internal temperature of the egg, acting as a buffer between the embryo and the outside world. It does this by preventing overheating of the egg, through reflecting the sunlight off the pigmentation, rather than allowing it to be absorbed through the shell
The type of RNA that delivers amino acids to the ribosome during protein synthesis is tRNA.a) trueb) false
Answer:
A). True
Explanation:
tRNA, which means transfer RNA is one of the three types of RNA known in nature. The tRNA is found in the ribosome, where it plays a pivotal role in protein synthesis (translation). Transfer RNA is the RNA responsible for reading the nucleotides in the mRNA codon and carrying the amino acid that corresponds those codons to the ribosome.
The tRNA has a 3-dimensional structure that allows it to carry anticodon that reads codon and also carry amino acids on opposite ends. Hence, according to this question, tRNA is a type of RNA that delivers amino acids to the ribosome during protein synthesis.
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Which statement is accurate?
A) A gene consists of two traits.
B) An allele is one form of a gene.
C) Most alleles have many genes.
D) An allele is made up of two genes.
Answer:
the answer to this question would be D) An allele is made up of two genes.
The cross Lpq/lPQ x lpq/lpq is carried out and the L gene is found to be in the middle. what would be the geneotype of the double crossover gametes in this cross?
Answer:
PLQ (Double Recombinant gamete) plq (Double Recombinant gamete)Explanation:
Cross:
Parentals) pLq/PlQ x plq/plq
Gametes) pLq (Parental) plq (Parental)
PlQ (Parental)
pLQ (Recomb)
plQ (Recomb)
PLq (Recomb)
Plq (Recomb)
PLQ (Double Recom)
plq (Double Recom)
Parentals)
p----L-----qP.....l........QSimple recombinant)
Recombination occurs between p and L, OR between l and q.
P----L-----qp......l.....Qp----L-----QP.....l........qDouble recombinant)
Recombination occurs between p and L, AND between l and q.
p-----l------qP......L.......QComment on the folding of protein in vaccum
Answer:
Protein folding is a process by which a polypeptide chain folds to become a biologically active protein in its native 3D structure. ... The amino acids in the chain eventually interact with each other to form a well-defined, folded protein. The amino acid sequence of a protein determines its 3D structure.
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Imagine that you are walking in the woods for fun and all of a sudden you see amountain lion. Your hair stands up, you begin to sweat and your heart beataccelerates as you prepare to run away. What fueled the energy for the run?
a. The binding of epinephrine to tyrosine kinase receptors and consequent initiation of a response that leads to muscle contraction that allows you to run
b. The activation of a G-protein receptor that leads to the secretion of a protein that makes you run.
c. The binding of epinephrine to a G-protein coupled receptor with the subsequent activation of a nuclear receptor.
d. The initiation of a signaling mechanism that leads to breakdown of glycogen into glucose that can then serve as the fuel for ATP production.
e. All of the above
Answer:
The correct answer is - D. The initiation of a signaling mechanism that leads to the breakdown of glycogen into glucose that can then serve as the fuel for ATP production.
Explanation:
In challenging or dangerous conditions, the body releases a hormone called Epinephering which is a fight or flight hormone that provides a high amount of energy for the particular action.
Epinephrine hormone binds to beta-adrenergic receptors present on muscles and responsible for the rapid conversion of glycogen to glucose-1-phosphate. The glucose results in condition to rapid synthesis of ATP in muscles and thus helps in muscle actions.
Draw me a diagram of an iron molecule and a water molecule
Explanation:
cause it will be like this
When you compare the percent similarity between nucleotide sequences for GAPDH with the percent similarity between protein sequences for GAPDH, what outcome would you predict?
a. Percent similarity of nucleotides will be identical to percent similarity of protein.
b. Percent similarity of nucleotides will be less than percent similarity of protein.
c. Percent similarity of nucleotides will be greater than percent similarity of protein.
Answer:
a. Percent similarity of nucleotides will be identical to percent similarity of protein.
Explanation:
In accordance to the central dogma of biology, PROTEINS are formed from the instructions contained in the nucleotide sequences of GENES. In other words, genes contain nucleotide sequences that holds information needed to produce proteins. This means that every protein is encoded by the nucleotides of a gene.
According to this question, nucleotide sequences of GAPDH will undergo gene expression to form protein sequences of GAPDH. Since GAPDH nucleotide sequences form GAPDH protein sequences, the percent similarity of nucleotides will be identical to percent similarity of protein.
You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases. How is this process an analogy for what happens to DNA over time? (Just 2-3 sentences)
40 points to whoever responds first
Answer:
Use Analogies You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases.
The story changes over time because of the way the teller and the listener communicating. The DNA of a newborn baby is a combination of their mom and dad. Every time the DNA changes it's because there is a new combination of two people.
Which statement describes an interaction between the biosphere and the atmosphere that is related to
photosynthesis?
O During photosynthesis, plant roots take in water from soil.
O During photosynthesis, plants take in carbon dioxide from the
air.
O Through photosynthesis, energy stored in plants is released into the air.
• Through photosynthesis, energy stored in plants is transferred to
humans who eat them.
Answer:
the second problem of course because, Plants need carbon dioxide and water from air and soil.
Explanation:
O
Answer: The answer is: During photosynthesis, plants take in carbon dioxide from the
air.
Explanation: I have my ways ;>
What is a benefit engineers have seen as a result of improving the mutation process?
A. Engineers have total control to prevent mutations from occurring.
B. Engineers have an abundance of seeds with different genetic viruses.
C. Engineers have figured out how to use the mutation process on machines.
D. Engineers do not need to grow seeds into adulthood in order to identify the
mutations.
Answer:
D. Engineers do not need to grow seeds into adulthood in order to identify the mutations.
Explanation:
Please fast i need an answer!
Answer:
B
Explanation:
the nerve endings are exposed
How is the organism that receives the DNA with the code for the desired trait
described?
1.genetically modified
2.the receiver organism
3.the strongest organism
Formaldehyde is an organic compound. Each molecule includes two hydrogen (H) atoms, one oxygen (O) atom, and one carbon (C) atom. Below are the dot structures for each of these elements.
At left, a purple circle labeled H surrounded by two concentric circles, the inner with nothing on it, the outer with 1 small green spheres. In center, a purple circle labeled O surrounded by two concentric circles, the inner with 2 small green spheres, the outer with 6 small green spheres. At right, a purple circle labeled C surrounded by two concentric circles, the inner with 2 small green spheres, the outer with 4 small green spheres.
Which diagram shows how the covalent bonds most likely form in a formaldehyde molecule?
C connected above and below to H's by 1 line each. C also connected by two lines to O, which has 2 dots each above and below.
C connected above and below to H's by 1 line each. C also connected by three lines to O, which has 2 dots each above and below.
O connected above and below to H's by 1 line each. O also connected by two lines to C, which has 2 dots above.
O connected above and below to H's by 1 line each. O also connected by two lines to C, which has 2 dots each above and below.
Answer- H
| ..
C = O
| ..
H
Explanation: Correct on Edg 2020/2021.
Answer:
A.
Explanation:
One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How has this advance changed the study of biology?
Single-type cultures are easier and cheaper to maintain than cultures made of mixed cell types.
Scientists can completely avoid using animal or human test subjects during their experiments.
Cultures with single cell types behave in culture exactly as they would behave in a tissue or organ.
Scientists know that any response during an experiment is associated only with that cell type.
Answer:
Scientists know that any response during an experiment is associated only with that cell type.
Explanation:
A cell culture is a group of cells that develops from a single original cell. Biologists can use cell cultures to test cell responses under controlled environmental conditions in order to study interactions between cells, and different processes occurs in it. Cell culture is one of the major tools used in the study of physiology and effect of toxic substances on the cells.
Answer: The answer is D.
Explanation:
What are the common features of the favorite careers in your class?
Answer:
what are some favorite careers in your class?
Explanation:
Why do we have to secure the inflated balloon
Answer:
cuz it will blow up xd need more secure
Answer:
it might fly away
Explanation:
You arrive at the scene of an accident where people are panicked and yelling. Three people appear to be injured. What action will you take FIRST?
Answer:
Go over to the panicked people and ask what happened.
Explanation:
I hope this helps you!
please do this. It is 100 points and im giving brainliest.
Answer:
pls see on book all answer see given
3. Which organisms are consumers? (Select all that apply.)
coyote
snail
green algae
bacteria
coyote
snail
green algae
