The cones of the retina detect color and function only in bright light.
QUIK QUESTION: have any of y'all be on probation lol? And if so help a gurley out what ya gotta do?
Answer:
yes
Explanation:
Substances enter any plant or animal cell by passing through which of the following structures?
1: nucleus
2: cell membrane
3: mitochondria
Answer:
cell membrane
Explanation:
because it's the outer most layer of protection
can't be nucleus as nucleus is the brain of the cell
can't be mitochondria as it is the powerhouse of the cell
Analyses of the protein ______ can be used to study evolutionary relationships among species because most organisms produce this protein for the electron transport chain in mitochondria.
Evolutionary relationships among species can be studied when similar structures or materials eg the wings of a bat and the arm of a bird or similar proteins between two different species. This proves to show relationship among organisms.
Analyses of the protein Cytochrome C can be used to study this types of evolutionary relationships.
Cytochrome C is an antioxidative enzyme that is a part of the electron transport chain in mitochondria. Mitochondrion is an organelle that majority of living organisms share in common. This protein is therefore found present in almost all organism carrying out cell respiration. Therefore this protein can be used to analyze and study evolutionary relationship among organisms with this protein.Learn more: https://brainly.com/question/22173470
evaluate the statements below and determine which is the best reason that bacterial cells use operons and polycistronic rna.
Given what we know about bacterial cells and their genetic mechanisms we can confirm that they use operons and polycistronic RNA for efficiency.
Bacterial cells are vastly different from human or animal cells. Some of these differences include:
Lack of compact DNALack of organelle surrounded by plasmatic membranesThey have cell wallsMay possess flagellaand many others.
Among these differences is the way in which they encode for the proteins the bacteria will produce. Unlike human cells, bacteria use polycistronic RNA. Where a human strand of mRNA will carry the genetic message to create one protein, the polycistronic mRNA of a bacterial cell will provide the information necessary to create multiple distinct proteins.
Bacteria use this in conjunction with operons, to create very efficient protein manufacturing processes. Operons are sections of DNA in which proteins with similar functions are grouped together in order to make it easier to create the polycistronic mRNA strands.
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I'm working on an assignment and they all seem true to me. Help?
Which of the following statements about plants is not true?
a. They make their food from carbon dioxide and water through photosynthesis.
b. Land plants have cell walls that help hold their stems upright.
c. They have adaptations that help prevent water loss.
d. Plants absorb food through their roots.
Answer:
A
Explanation:
because plants use atmospheric carbon dioxide and water absorbed from the earth to create organic matter in the process of photosynthesis. On that occasion, oxygen is released.
Answer:
A
Explanation:
I hope this is correct, since every other version I've seen of this question option A is water and oxygen.
when two haploid gametes unite, they create a diploid cell called a
2 haploid gametes combine to produce a diploid zygote
What is the process called when cells break off of an original tumor and create new cancer sites?
OOOO
benign
malignant
metastasis
biopsy
Answer:
metastasis is your answer fits the description of host sitr to new site
What is the goal of mitosis?
A major purpose of mitosis is for growth and to replace worn out cells.
Explanation:
Answer:
Well the mitosis is a process from one cell cuts into a same daughter cells. Basically cell division! During the mitosis one cell? Cuts once into a form with the same identical cells. The purpose for this mitosis is for the growth to take out the old cells and replace them with new cells.
Explanation:
Sorry if I am wrong have a bless day :D
Which of these is a product of anaerobic rrespiration
THIS IS THE PICTURE
Answer:
looks yummy
Explanation:
What is that btw hahaha
which is a type of sequence identified by gene annotation?
Answer:
DNA annotation or genome annotation is the process of identifying the locations of genes and all of the coding regions in a genome and determining what those genes do. Hope this helps!!!
Explanation:
Robert Hooke was the first person to observe cells. He observed these cells in
(a) a piece of cork.
(b) a slice of honeycomb.
(c) human blood.
(d) plaque from his own teeth.
Robert Hooke was the first person to observe cells. He observed these cells in (a) a piece of cork.
I hope this helps!
Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
What is cell cycle?
Cell cycle is defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one is G1 phase in which the size of cell increases, S phase synthesis of DNA takes place and the third step is G2 phase in which cell ready to divide.
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
Therefore, Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
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How does a bacteriophage work.
Answer:
A bacteriophage attaches itself to a susceptible bacterium and infects the host cell. Following infection, the bacteriophage hijacks the bacterium's cellular machinery to prevent it from producing bacterial components and instead forces the cell to produce viral components.
what is the thickest and longest nerve in the human body
Answer:
It's your sciatic nerve.
why renin is found more in case of babies
can someone answer it
Answer:
newborn infants. Bioassayable andimmunoassayable renin activities were elevated during the first six days after delivery. At 3 to 6 weeks of age, although elevated above that in adult control subjects, renin activity was lower than in the first postnatal week. Cord blood renin values were greater than those for maternal renin during labor. Renin substrate concentration was elevated in infants less than six days of age and also in 3- to 6-week-old infants. The enhanced activity of the renin-angiotensin system may contribute to the increased renal vascular resistance and the altered renal hemodynamics that occur in the newborn infant.
Answer:
It's the same so don't complain OK it is correct so don't worry about it as much ok
the segment of the dna molecule where messenger rna synthesis begins is called the
what part of the kidney can be under hormonal control?
Answer:
The kidneys make two main hormones, vitamin D and erythropoietin.
help!!!!!!!!!!!!plsssss
Answer: 8- D
9- C
Explanation: always remember the number above is the atomic number
Answer:
Number 8 is D. Transition Metals and Number 9 is C. Atomic number.
Explanation:
8. All the highlighted ones are the only ones that have metals in them. Think about it, The right side contains gases like oxygen, so it can'y be A or B. Halogens are basically liquids like fluoride or chlorine.
9. Atomic Number would be 6
Atomic mass would be 12.0
And atomic symbol would be C.
blood flows more slowly in the capillaries than in the aorta. why?
Answer:
because it a smaller part
Explanation:
Due to the capillaries' large overall cross-sectional area, blood flow there is slow, allowing for adequate nutrition exchange.
How blood flows through blood vessels?The rate of blood flow dramatically decreases as it enters arteries, arterioles, and eventually, capillary beds, slowing to roughly 0.026 cm/sec, or 1,000 times slower than the aorta.
The capillaries, where blood flow is the slowest, provide time for the exchange of gases and nutrients. A force that opposes a fluid's flow is called resistance.
The majority of blood vessel resistance is caused by the size of the vessel. Blood flow reduces as vessel diameter shrinks due to an increase in resistance.
Therefore, the high total cross-sectional area capillaries blood flows more slowly.
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Which of the following is the process of your body utilizing the energy in food?
Answer:
c. Metabolism
Explanation: is correct
The farm business has decreased for years
due to an increase in disease and pests.
What is one way to increase the production of
crop for the farmers?
A.Plant genetically modified crops.
B.Use water treated with disease control substances to
water the crops.
C.Fertilize the farming land.
D.Increase the use of pesticides to prevent pest.
give 3 exampels of where potential energy was converted to klinetic energy
Answer:
1. A rock falling off a cliff
2. Roller coaster starts plummeting from the top
3. Pendulum swings from the top to the middle, once it starts the second up swing the kinetic turns back into potential energy
Answer:
1. Pushing a large rock down a hill.
2. Kicking a stationary soccer ball.
3. Releasing a taut rubber band
I don't know how varied your class's examples of potential energy have been so far, but there are many kinds if you need more variety.
Explanation:
You can just use your imagination for these if you want to! Potential energy is the energy that an object can have, its potential to have energy (just like it says), while kinetic energy is the energy of a moving object. All you need to do is take a still object and apply force to it.
what human activity contributes to air pollution brainly
Answer:
Burning fossil fuels is the most common
Answer: one edge I believe it is construction
Explanation:
the other choices are all positive and would limit air pollution not contribute to it
How does the physical environment in a tide pool change between tides?
Michelle has been given a microscope slide that contains a eukaryotic cell and a prokaryotic cell. What should she look for to distinguish the eukaryotic cell from the prokaryotic cell?
A.
cytoplasm
B.
nucleus
C.
ribosomes
D.
cell membrane
Answer: B
Explanation:
Bacteria such as e. coli and salmonella produce invasins that bind host cells, thus causing the cells to:
Answer:
kill cells and tissues outright
Explanation:
Sometimes bacteria multiply so rapidly they crowd out host tissues and disrupt normal function. Sometimes they kill cells and tissues outright. Sometimes they make toxins that can paralyze, destroy cells' metabolic machinery, or precipitate a massive immune reaction that is itself toxic
Acrroding to http://needtoknow.nas.edu/id/infection/how-pathogens-make-us-sick/
What amino acids is represented by the codon UUA?
Answer:
Leucine
Explanation:
Leucine amino acid is represented by the codon UUA. One codon codes for only one amino acid.
What are amino acids?Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the human body to create proteins that aid in breaking down food.
There are 20 amino acids, of which 10 amino acids are essential and 10 are non-essential amino acids.
Codons made from three nitrogenous bases codes for amino acids. One amino acid can be coded by more than one codon, while one codon can code only one amino acid. For example, UUA codes only for leucine, but leucine can be coded by UUA, UUG, CUA, CUC, CUG, and CUU.
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A___ ______ cell has fine hairs (cilia) which are waved in a rhythm so that mucus can be moved?
Nasal Cavity alin which nerve cells has
What is both the thickest and longest nerve in the human body?
The sciatic nerve is the largest and longest nerve in the human body, originating at the base of the spine and running along the back of each leg into the foot. At its thickest point, it is about as wide as an adult thumb.
State 2 of Newtans three laws
(PLS HELP ASAP!!)
1. Something at rest or in motion in all constants will remain that way unless acted upon by a force.
2. F=ma
Explanation:
Newton’s first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Force equals mass times acceleration; it states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.