13. Are ALL genes expressed in ALL cell types?
Only a fraction of the genes in a cell are expressed at any one time. The variety of gene expression profiles characteristic of different cell types arise because these cells have distinct sets of transcription regulators
Hope this helped you
Christopher Columbus used the presence of suspended seaweed in the ocean to
determine how far away he was from the coast of the Africa. Seaweed, or kelp, is
placed under the Protista kingătom. What type of protist did Columbus see?
a)protozoa
b) slime mold
c) water mold
d) brown algae
Brown algae is the type of protist Columbus saw. Therefore, option (D) is correct.
What are brown algae?Seaweed is a type of brown algae, which is a type of protist that belongs to the kingdom Protista. Brown algae are large, multicellular algae that grow in the ocean and are often found in shallow, warm waters. They have a complex structure and are made up of many cells that are organized into tissues and organs. Brown algae are photosynthetic, meaning they use sunlight to produce energy and nutrients, and they are an important source of food and habitat for many marine organisms.
Other types of protists include protozoa, which are single-celled, heterotrophic organisms that can move using cilia, flagella, or pseudopodia; slime molds, which are fungi-like organisms that can move and are often found in moist environments; and water molds, which are fungi-like organisms that can grow in water and can cause disease in plants and animals.
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If researchers use only the number of coral found in dive 1, calculate the predicted population of brain coral in a reef that covers 120m squared. i forgot how to do this :))
Answer:
40
Explanation:
Each quadrant measured = 2m X 2m
Length = (2+2+2) m = 6m
Width = 2m
Total area = area of (quadrant 1 + quadrant 2 + quadrant 3)
Total area = 6 * 2 = 12 m^2
Number of coral found in dive 1 = 4
Population density = 4/12 = 1/3 (0.33)
Now,
=> Population density = (Predicted population)/area
=> 1/3 = PP/120
=> PP = 120/3 = 40
So, the required answer is 40.
The predicted population of brain coral in a reef covering 120m² is ; ≈ 40
First step : Calculate the value of the default population density
Population density = population size (dive 1) / total area
= 4 / 12 = 0.33
Total area ;
∑ Area of each reef quadrant = length * width = 2 * 2 = 4m²
∴ Total area = 4 + 4 + 4 = 12m².
Final step : Determine the value of the predicted population of brain coral
Population density = ( predicted population ) / predicted area
0.33 = ( pp ) / 120m²
∴ Predicted population ( pp ) = 0.33 * 120
= 39.6 ≈ 40 brain corals
Hence we can conclude that the predicted population of brain coral is 40
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hurry due in 5 min plz help for test
Answer:
Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!
The brainly team.
Answer:
the last one you already chose it
Genes determine all traits?True or false
Answer: True
Explanation: Genes are traits your ancestors and parents have or had, so they pass on to you. Some genes mix which makes you have green eyes instead of brown like your grandma.
Hope this helps <3
Answer:
false
Explanation:
traits are determined by more than two genes.
SOMEONE I NEED HELP!! I'M STUCK 30 POINTS!!!!!
PART A
An advantage of mitosis is the result of genetically____________.
A. Different
B.Identical
PART B
cells being reproduced
A. slowly
B. Quickly
Molecules can cross cell membranes from areas of low concentration to areas of high concentration by binding with carrier proteins and ATP. What is this process called?
What could explain the curve in this population growth graph? A graph has time on the horizontal axis and population size on the vertical axis. The population size was constant for a period of time, increased rapidly, and then became constant again. an unlimited food supply a natural disaster a population crash a reduction in predators
Answer:
A reduction in predators
Explanation:
I just took the test
A reduction in predators could explain the curve in this population growth graph.
How does reduction in number of predators lead to curve?The prey species soon degrades and overruns its area since there are no predators to regulate the population and modify feeding behavior.When food becomes scarce, people grow unwell and famished, and they either flee or crash.When predator populations grow, putting more pressure on prey populations and acting as a top-down control, pushing them toward extinction. As a result, the size of prey populations is influenced by both resource availability and predation.
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If you were to leave a pan of water outside for several days what would happen
Write a scientific report on the what would happen, and how would they relate to the tree states of water: solid, liquid and gas.
At least 3 paragraphs.
Answer:
the water would evaporate and the water would be gone
Explanation:
hope this helps
True or False. All mutations result in a change to the amino acid.
O True
False
Answer:
False false false false false false false false false false false
Answer:
False
Explanation:
Different between the two types of reflection regular reflection and irregular reflection? "plz help me am new here"
Answer:
The light reflection is the returning back of light waves in the same medium on meeting a reflecting surface, and the surface at which the reflection takes place is called the reflecting surface, The light reflection is classified according to the nature of the reflecting surface into the regular (uniform) reflection, and the irregular (non-uniform) reflection.
Explanation:
........ produces hormones and enzymes that aid digestion.
Liver
Gall bladder
Pancreas
Urethra
Answer:
urethra
Explanation:
Answer:
Pancreas and liver
Explanation:
Which name is best for my new bearded dragon?
1. Chili
2. Mushu (dragon from Mulan)
3. Blue (dino from Jurassic Park)
Answer:
Mushu
Explanation:
explain what is meant by 'double circulation' of blood
Answer:
♡ hiya there, human! ♡
- double circulation of blood means that the blood passes through the heart two times per circuit.
hope I could help! have a great day.
-madi/madeline
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
Explanation:
due in 5 min hurry please help
Hey there!
The answer is "not producing enough of what you need".
Answer:
the answer is c I'm pretty sure but don't hold me on it
(HELP ASAP 15 POINTS)
Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation? Explain why.
Answer:
Peppered moths get their color in lieu to become the fittest among all so that they can survive easily.
Answer/Explanation:
Differential reproductive success.
When the Birch(white) trees were covered in soot(making them black). The black pepper months could blend in to the tree while the white moths stood out.
When the Birch(white) trees were clean and white. The white pepper moths could blend in to the tree while the black moths stood out.
This is an example of differential reproductive success. Who ever could blend in with the tree had the better genes because it made them difficult to be spotted. The other type of moth would be not so lucky, easily spotted an eaten. The better gene lead is "successful," because that moth could live longer because of its characteristics..
When writing DNA, you may only write what 4 bases?
Answer:
A's T's C's and G's
Explanation:
Adenine, Thymine, Cytosine, and Guanine
POSSIBLE PO
Cellular respiration takes place in the cells of every living eukaryotic organisms. What organelle in the cells conducts cellular respiration?
Chloroplast
Cytoplasm
Golgi Body
Mitochondria
pick the a.b.c below.
a. 8 grass/m2
b. 16 grass/m2
c. 24 grass/m2
d. 32 grass/m2
Answer:
16grass/m²
Explanation:
Given parameters:
Number of grasses in quadrat = 4
Area of the square = 0.25m²
Unknown:
Population density = ?
Solution:
Population density is the number of organisms per given area;
Population density = [tex]\frac{number of grasses}{area of quadrat}[/tex]
Population density = [tex]\frac{4}{0.25}[/tex] = 16grass/m²
Compare the mass of samples A and B to determing if acidity affects the rate of weathering. Was there a measureable difference between the two treatments. yes, no, unable to determine. The limestone in the vinegar demonstrated a ___________ rate of weathering than the limestone in the water. faster or slower. Based on the data, it can be said that, acicidity has no effect on weathering, acidity affects the rate of weathering, the affect of acidity cannot be determined.
1: yes. 2:faster. 3: acidity affects the rate of weathering
Explanation:
hope this was right
Answer:
yes
faster
acidity affects the rate of weathering
Explanation:
Which type of tissue produces movement?
A. Nervous tissue
O B. Epithelial tissue
O C. Connective tissue
O D. Muscle tissue
The type of tissue which produces the movement is known as Muscle Tissue. The correct option is D.
Muscle tissue is made up of cells that have the unique ability to shorten or contract in order to move bodily parts. The tissue is densely cellular and rich in blood capillaries. Because the cells are long and slender, they are sometimes referred to as muscle fibers, and they are typically organized in bundles or layers surrounded by connective tissue.
Actin and myosin are muscular proteins found in muscle. Skeletal muscle tissue, smooth muscle tissue, and heart muscle tissue are the three types of muscle tissue.
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Which ideas did not lead to lower amounts of waste
A. The extension of a products life time
B. The elimination of unnecessary packaging
C. Flexible construction for simple repair
D. Built in obsolescence
E. The introduction of new design technology
Answer:
I believe C
Explanation:
Answer:
C. Flexible construction for lower amounts of waste
Explanation:
This is not reducing the waste produced
A h e t e r o z y g o u s parent is crossed with a h o m o z y g o u s recessive parent. Complete a Punnett Square and answer the questions below.
I Am Not Sure What Your Asking?
Answer:
Black Fur & Black Eyes: 4/16
Black Fur & Red Eyes: 4/16
White Fur & Black Eyes: 4/16
White Fur & Red Eyes: 4/16
4 is 1/4 of 16
Explanation:
I hope this helps
What is a polymer? What type of chemical reaction builds polymers
Answer:
The answer to your question is: Polysaccharide
The monomers of DNA are nucleic acids - the four in DNA are adenine, guanine, thymine, and cytosine - the A, C, G, and T of primary DNA structure.
Explanation:
I hope this helps
Transcription: DNA to mRNA: 1. How many strands of mRNA are transcribed from the two "unzipped" strands of DNA? 2. If the following were part of a DNA chain, what mRNA bases would pair with it to transcribe the DNA code onto mRNA? G-G-A-T-C-G-C-C-T-T-A-G-A-A-T-C 3. If DNA Is described as a double helix, how should mRNA be described? 4. How are the accuracy of DNA and mRNA codes assured?
( help please)
Answer:
what are u taking this on
If a plant takes in 6 CO2 molecules and 6 H2O molecules in order to build one C6H12O6 molecule, what element will the plant have "extra" of / What element will be "extra"?
Answer:
Oxygen (O2)
Explanation:
This question is describing photosynthesis which uses carbon dioxide and water as reactants in the presence of sunlight to synthesize sugar (glucose) and oxygen. The general equation is as follows:
6CO2 + 6H2O ---> C6H12O6 + 6O2
According to this question, a plant takes in 6CO2 molecules and 6H2O molecules in order to build one C6H12O6 molecule. Using the balanced equation above, the extra element is OXYGEN, which still needs to be released as a gas for the equation to be balanced i.e 6O2 molecules
Which of the following is a pluton?
A. Pyroclast
O
B. D*ke (it's a type of rock not the slur)
O
C. Lahar
O
D. Lava flow
Answer:
The correct answer is d*ke
Explanation:
I tried the other answer and got it wrong, this was the right one on the test.
The connective tissue covering most of the outside of a bone is called:
A.
Cartilage
B.
Periosteum
C.
Bone marrow
D.
Epiphysis
Answer:
boplkuuhhftcctfckkf yyyyyyyyyyyyy it is b
Explanation:
GIVING OUT BRAINLIEST
Which two kinds of information would best help describe the climate of
Memphis?
O A. The average amount of rain in March in Memphis between 1980
and 2010
B. The humidity pattern in Memphis over 30 years
O c. The air pressure in Memphis on October 14 last year
O D. The predicted temperatures in Memphis for next April 5 - 10
Use the results of Demetri's experiment to explain why the color changed on some test strips but not others.
Answer:
I think it was the same due to all the tubes havign gluscoes in them. I think thats right.
Explanation: