Answer:
Water flows through this type of soil.
What is the role of operons in prokaryote gene expression?
Blocks of DNA called operons are used to encode proteins that are required for a certain task or that are part of the same metabolic pathway.
What is operon?Operons are frequently found in bacterial genes. An operon is a collection of genes that all share a single promoter during transcription.
There are regulatory DNA sequences in every operon, and these sequences serve as binding sites for regulatory proteins that either encourage or inhibit transcription. Genes involved in lactose metabolism are found in the lac operon of E. coli. It only expresses itself when lactose and glucose are both absent.
A lactose sensor is the lac repressor. When lactose is present, it ceases to function as a repressor, blocking transcription of the operon in its usual state. Through its isomer allolactose, the lac repressor indirectly detects lactose.
Therefore, Blocks of DNA called operons are used to encode proteins that are required for a certain task or that are part of the same metabolic pathway.
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Exposure to sunlight is a(n) _________ that can influence whether or not a person will develop skin cancer.
inherited trait
chromosome trait
recessive trait
environmental factor
Answer:
Environmental factor.
Explanation:
Sunlight has nothing to do with genetics.
You only get exposed to sunlight based on your environment.
Tariq watches a hummingbird hover around a petunia flower. He remembers that when two species interact with each other closely, like hummingbirds
and flowers, they can affect one another's evolution. Which of these is an example of coevolution?
A. Ticks draw blood from a deer and can travel from host to host.
B. Female seahorses lay eggs and the male seahorses carry the eggs.
C. Bumblebees eat the nectar
from flowers and then spread the flower pollen
D. Mountain goats evolved hooves that spread apart and have pointed edges in front so they can climb and live on steep cliffs
Answer:
C.
Explanation:
In the context of evolutionary biology, coevolution refers to the evolution of at least two species, which occurs in a mutually dependent manner. ... An example is the coevolution of flowering plants and associated pollinators (e.g., bees, birds, and other insect species)
Commercial hydrogen is obtained from
Answer:
natural gas, oil, coal, and electrolysis; which account for 48%, 30%, 18% and 4% of the world's hydrogen production respectively
Explanation:
Answer:
There are four main sources for the commercial production of hydrogen: natural gas, oil, coal, and electrolysis; which account for 48%, 30%, 18% and 4% of the world's hydrogen production respectively. Fossil fuels are the dominant source of industrial hydrogen.
Explanation:
If this answer helps please vote brainiest.
Which phase occurs directly after S phase?
O A. M phase
O B. G1
O C. Cytokinesis
O D. G2
What would be the final volume of 4 ft3 of gas that is compressed from 60°F at 70 psig to 150° at 210 psig?
Answer: 1.8 cubic feet
Explanation: I got it of unit 10 flashcrads it told be the answer :D
The final volume of 4 ft³ of gas that is compressed from 60°F at 70 psig to 150° at 210 psig is 3.33ft³
According to the general gas equation;
[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}[/tex]
P1 and P2 are the initial and final pressures respectively
V1 and V2 are the initial volumes and final volume respectively
T1 and T2 are the initial temperatures and final temperature respectively
Given the following parameters
V2 = 4ft³
T1 = 60°F
T2 = 150°F
P1 = 7psig
P2 = 210psig
Substitute the given parameters into the formula as shown:
[tex]\frac{70 \times 4}{60} =\frac{210 \times V_1}{150}\\Cross \ multiply\\280 \times 150 = 60 \times 210V_1\\ 42,000=12,600V_1\\V_1=\frac{42000}{12600}\\V_1= 3.33ft^3[/tex]
Hence the final volume of 4 ft³ of gas that is compressed from 60°F at 70 psig to 150° at 210 psig is 3.33ft³
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Different types of cells can have certain organelles and structures in common. Which types of cells definitely contain cell walls?
SC.912 L 14.3
O plant and animal cells
0 plant and eukaryotic cells
o plant and prokaryotic cells
animal and eukaryotic cells
Answer:
plant and eukaryotic cells (B)
Explanation:
animal cells have a cell membrane but no cell wall and prokaryotic organisms lack a nucleus or any other membrane bound cell organelle.
Plant and prokaryotic cells definitely have a cell wall. So, the correct option is C.
What is Cell wall?Cell wall is defined as the structural layer that consists of polysaccharides and is present outside the plasma membrane which can be rigid, rigid and flexible. This provides protection to the cell from external factors that may be harmful to the cell and also provides structural support.
Plant and prokaryotic cells definitely have a cell wall. The cell wall of a prokaryotic cell is present under the capsule while the cell wall of a plant cell is a specialized form of extracellular matrix that surrounds each cell of a plant. This provides structural support to the cell and protects the cell against infection and mechanical stress
Therefore, the correct option is C.
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In the Krebs cycle, production of ATP requires
a. acetyl-CoA.
b. the gradual breakdown of a six-carbon compound.
c. the transfer of a phosphate group to ADP.
d. All of the above
Critics claim that genetic researchers overestimate which of the following?
Please select the best answer from the choices provided
environmental influences on personality
genetic influences on personality
cognitive influences on personality
evolutionary influences on personality
Answer:
genetic influences on personality
Explanation:
Personality traits are influenced by both inheritance (genes) and environmental (e.g., educational, cultural background) factors, as well as by the interaction between genetic and environment. In genetics, it has been believed that personality traits have a strong genetic component, which has been observed in large-scale twin studies. Some personality traits that have been shown to have a strong genetic component include neuroticism, agreeableness, extraversion and openness. These traits are influenced by the combined effects of numerous genes (i.e., they are complex quantitative traits), thereby a significant number of researchers in other fields argue that the genetic components of personality traits are often overestimated.
Answer:
B
Explanation:
Red blood cells are constantly being produced in your body. Another body system cooperates with the cardiovascular system in the production of these cells. What is this system and how does it cooperate?
A) Red blood cells are produced throughout your lymph glands, part of the lymphatic system.
B) Red blood cells are produced in your liver and pancreas, organs that are part of the digestive system.
C)Red blood cells are produced in the bone marrow of certain bones, bones that are a part of the skeletal system.
D) Red blood cells are produced in your lungs and then circulated through your blood vessels. This is another way the cardiovascular and respiratory systems cooperate.
Answer:
your answer is going to be a
Explanation:
biology sofmore year threw senior year is very much exsplainign cells and reproduction
Areas in the universe where little matter exists are called black holes.
True
False
Answer:
True
Explanation:
Which of the following is the best definition of genetic engineering?
Only allowing the reproduction of individuals with a desired trait, so that the
trait becomes more common in a population.
Taking a protein from an organism with a desired trait and inserting the protein
into a second organism.
Transferring the gene of one organism with a desired trait into another organism,
so the second organism will gain the trait.
Answer:
3
Explanation:
because i search it up saying that Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism. Traditionally, humans have manipulated genomes indirectly by controlling breeding and selecting offspring with desired traits.
What is the main function of the nervous system? (Not sure if this is right answer)
Are all bacteria pathogenic
Yes or no?
1pt Which of the following tells you the number of protons in the nucleus of an atom?
O A. atomic mass
O B. orbit
O c. half-life
OD. atomic number
Need help will give brainliest
Answer:
c, the first answer is the correct answer
Answer:
C. the answer trust me dood
what type of final cells are produced in mitosis
what type of final cells are produced in meiosis
Pls help
================
Answer:
cell walls
Explanation:
Based on the Tonicity in Elodea Cells lab, a hypotonic environment causes a cell to swell or burst because
Check All That Apply
the water in the solution moves into the plant cell.
the water in the solution moves out of the plant.
the solutes in the solution have a higher concentration than the solute concentration inside the plant cell.
the solutes in the solution have a lower concentration than the solute concentration inside the plant cell.
the water is moving down its concentration gradient from high to low. the water is moving down its concentration gradient from low to high.
Answer:
The correct answer is -
the water in the solution moves into the plant cell
the solutes in the solution have a lower concentration than the solute concentration inside the plant cell
the water is moving down its concentration gradient from high to low.
Explanation:
The hypotonic solution consists low concentration of solutes and a higher concentration of water as compared to the concentration of solutes and water of other solutions or cells. Water tends to move from a higher concentration of water to a lower concentration of water therefore the cell swell and then ultimately burst.
Water movement in such conditions is known as the movement down the concentration gradient as it moves from its higher concentration to a region of its lower concentration.
what natural event would most likely cause succession in a grassy field
Answer:
All the soil remains wet for several days after a heavy rain. Most of the grass is blown flat by a strong wind. Many grass plants die after a long period of no rainfall
Explanation:
I will give brainiest
Which of the following describes the role of lipids?
Choose 2 answers:
(Choice A)
A
Transmission of genetic information
(Choice B)
B
Enzyme function
(Choice C)
C
Energy storage
(Choice D)
D
Membrane structure
Answer:
D i think sorry if its wrong ;-;
calcium carbonate is a mineral that reacts with vinegar. based on your experiment which of the three minerals contain calcium carbonate
Answer:
I believe it is calcite.
How do scientists hope to limit climate change?
Which of the following is unique to eukaryotic cells?
.Eukaryotic cells use energy.
.Eukaryotic cells have a nucleus.
.Eukaryotic cells contain DNA.
.Eukaryotic cells reproduce.
Answer:
eukaryotic cells have a nucleus
Answer:
Eukaryotic cells have a nucleus
Explanation:
Eukaryotic cells have a nucleus and prokaryotic cells don’t have a nucleus.
A neuron is ______
A. pluripotent
B. multipotent
C. unipotent
D. totipotent
Answer:
MULTIPOTENT is the answer for your question.
Hope it helped!!!
A neuron is multipotent, are cells that have the capacity to self-renew by dividing and to develop into multiple specialised cell types present in a specific tissue or organ.
What is an example of multipotent?Adult stem cell such as neural stem cells (NSCs), mesenchymal stem cells (MSCs), and hematopoietic stem cells (HSCs) are multipotent stem cells.
Thus, option "B" is correct.
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5th grade work. Correct answer will be marked brainliest.
Answer:
the answer is through
Explanation:
so C.
Which statement describes how this
experiment relates to how organisms obtain
and use energy?
The snail uses energy to release oxygen
for the elodea.
Elodea uses light energy to create
B
chemical energy for the snail.
Elodea releases carbon dioxide while the
snail releases oxygen.
The snail provides kinetic energy to the
D system while the elodea provides
potential energy
Answer:
Explanation:
A
What do you know about food chains? They begin with producers and
end with top level consumers, usually predators. The graph depicts the
relationship between two top-level predators in five counties. What
type of relationship is this?
A)
competitive
B)
mutualistic
C)
predator-prey
D
symbiotic
Answer:
A
Explanation:
Answer:
a
Explanation:
how does our water use affect the bay-delta ecosystem?
Answer:The Sacramento-San Joaquin Rivers Delta and San Francisco Bay (hereinafter “Bay-Delta”) is an important economic and environmental resource benefitting all of California and the nation. The Northern California Water Association (NCWA) and Sacramento Valley water resources managers recognize the importance to California’s future of a healthy Bay-Delta and providing high quality and reliable water supplies for all beneficial uses. For the past several decades, NCWA has been a strong and constructive participant in the various processes designed to help solve the challenges in the Bay-Delta. We will continue to play a constructive role in implementing necessary solutions to Bay-Delta problems, as long as the actions do not affect the ability to serve water for multiple beneficial uses in the Sacramento Valley, including cities and rural communities, fish, farms, birds and recreation.
NCWA and Sacramento Valley water resources managers have supported the state’s co-equal goals–providing a more reliable water supply for California and protecting, restoring and enhancing the Delta ecosystem–and have encouraged success in Voluntary Agreements as a new way forward in California.
Task 5: Changes of nuclear DNA
concentration during the cell cycle
Nuclear
ONA
Cell cycle: mitosis
Cell cycle meiosis
20
G.
S
M
G.
G
S
M, M
What’s the difference between the mitosis and meiosis graph?
Explanation:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.