Answer:D
Explanation: Protozoans are a single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or sporozoan.
Protozoans play important roles in the fertility of soils. By grazing on soil bacteria, they regulate bacterial populations and maintain them in a state of physiological youth— in the active growing phase. This enhances the rates at which bacteria decompose dead organic matter.
the concentration of solute outside of the cell are_____than the inside of the cell
What happens to a cell in a hypertonic solution
Answer:
If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
Which statement best summarizes what happens to energy in an ecosystem when it reaches the top of the food chain?
A. The flow of energy stops when the top predator dies
B. The flow of energy stops when a secondary predator decomposes
C. The energy flows in the opposite direction, back down the food chain
D. The energy is transferred to the soil and recycled back to the producers
Answer:
D.
Explanation:
Answer:d
Explanation:
A diagram that shows how scientists think different groups of organisms are related _________________ ________________.
Answer:
isolation complete seperation
Explanation:
I get that right yo day in class
what does the theory of evolution state
Answer: In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time
Explanation:
which of the following is a correct list of structures found both plant and animal cells
Answer:
Answer:
Cell Membrane
Cytoplasm
vacuole
Nucleus
Mitochondria
etc.
There are also other things that they have in common but those are the main ones.
How long does it take you to drive 500ft?
Answer:
at what speed are you going?
how does the number of chromosomes in a gamete compare to the number of chromosomes in an organism
Answer:
In any given asexually reproducing species, the chromosome number is always the same.
Mushroom rocks are formed by ___________________
Answer:
wind erosion
Explanation:
The rocks are deformed in a number of different ways: by erosion and weathering, glacial action, or from a sudden disturbance. Mushroom rocks are related to, but different from, yardang. A mushroom rock, rock pedestal, or gour is a typical mushroom-shaped landform that is formed by the action of wind erosion.
mushroom rocks are corn as fungi
Roles of bones in bony fish include which of the following?
a for general protection and support
bas places of attachment for muscles
x
to protect the fish's brain
d all of the above
Answer:
D All of the above
Explanation:
Like our bones, bones in fish can provide general protection and support to their body.
(Fun fact, jellyfish do not have bones, so when they are out of the water, they loses their bell shape structure and looks more like a flat piece of jelly. But fish tends to look the same when it is in water and out of water.)
The bone is also where the muscles will attach to, which allows for movement.
(Imagine our fingers, the muscles in our fingers are attached to our bones, which allows us to do things like typing.)
Bones can also protect the fish's brain.
(Brain can be very fragile and soft, so having a hard structure around it can protect the brain. It's kind of similar to protecting the liquid egg in an egg shell.)
LOTS OF POINTS AND BRIANLIESTTT 6. How is the liquid water different from the ice? *
1 point
The freezing point of the ice is lower.
The temperature of the liquid water is lower.
o
The average kinetic energy of the ice particles is lower.
a
The motion of the particles that make up the water is slower.
Answer:
the answer will be B : the tempreature of the liquid water is lower
What is genotype is type 0 blood?
Answer:
Someone with blood type O has neither the A nor the B allele
Explanation:
The genotype must be AB. Someone with blood type O has neither the A nor the B allele. The genotype must be OO.
In humans, ____ are used to move a cell within its environment while _____ are used to move the environment relative to the cell
4. What kind of functions can a plant cell perform that an animal cell cannot? Explain.
Answer:
Photosynthesis
Explanation:
In pea plants, tall plants are dominant over short plants. cross a plant that is TT with a plant that is Tt. what percentage of the offspring are Tt?
this makes no sense sombody please tell me how to figure this out.
Answer:
50%
Explanation:
use a punnett square
T TT TT TTt Tt TtTwo of the four possible outcomes are Tt. That means half of them, or 50% are Tt.
I hope this helps
Why are there tectonic plates?
Answer:
there are tectonic plates so the earth keeps evolving.
Explanation:
The lymphatic system serves which purpose?
Answer:
One of the lymphatic system's primary jobs is to collect excess fluid (particularly lymph fluid) surrounding the body's tissues and organs and return it to the bloodstream.
Explanation:
If the lymphatic system didn't drain excess fluid from the tissues, the lymph fluid would build up in the body and cause swelling. hope this helps!
Mitosis creates how many daughter cells
Who was the first to try vaccination (NOT VACCINE BUT THE SIMILAR METHOD)
Answer:
Traditional Indian and Chinese medicinal
systems sometimes deliberately rubbed the
skin crusts from smallpox victims into the
the skin of healthy people. They thus hoped to
induce a mild form of smallpox that would
create resistance against the disease.
Answer:
Traditional Indian and Chinese medicinal
systems??
Question 9 (1 point)
In peas, long stem (A) is dominant over short stem (a). A heterozygous, long stem plant (Aa) is crossed with a homo-zygous, short stemmed plant (aa).
Which of the above squares represent plants that are heterozygous?
Question 9 options:
Box 1
Box 1 and box 2
Box 1 and box 3
Box 2 and box 3
Answer:
Box 1 and 3
Explanation:
Box 1 represents the allele Aa
Box 2 represents the allele aa
Box 3 represents the allele Aa
Box 4 represents the allele aa
So the answer is Box 1 and 3 because Aa is a heterozygous allele and aa is a homo-zygous allele.
A cross among individuals with contrasting variations at one locus for the attribute is called a monohybrid cross. Each parent provides one type of allele or a trait to their offspring.
Monohybrid cross can be shown using the Punnett square, to determine the probability of a progeny expressing that genotype.
The correct answer is :
Option C. Box 1 and box 3
The reason for the answer is:
1. Box 1 will produce offspring with genotype: Aa
2. Box 2 will produce offspring with genotype: aa
3. Box 3 will produce offspring with genotype: Aa
4. Box 4 will produce offspring with genotype: aa
Therefore, Box 1 and Box 3 represents heterozygous alleles, whereas box 2 and box 4 represents purebred alleles.
To learn more about purebred and heterozygous follow the given link:
https://brainly.com/question/13050360
What is the function of the Cornea?
Answer:
The function of the cornea is it acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye's total focusing power.
Explanation:
Which best determines the health of a lake used as a source of freshwater?
A. its depth and width
B. its temperature and pH
C.its location and depth
D.its temperature and depth
Answer:
B
Explanation:
A measure of the natural populations of algae, plants, fish, and other wildlife provides evidence of the health of a body of water.
The diagram shows part of a frog’s body.
The structure labeled X most likely helps with which activity?
swimming
climbing
jumping
fertilizing
Answer:
A. Swimming
Explanation:
My mommy don't love me ;-;
Justin is warming a pot of soup on the stove. How is the motion of the particles in the soup different
after the temperature of the soup increases? Helpp ASAP
When a person doesn't get enough sleep, their immune system:
A Becomes stronger
B Becomes weaker
C Gains autoimmunity
D Can't remember diseases
Answer:
becomes weaker
Explanation:
because if you stay up all night you might sick
Explanation:
When a person doesn't get a enough sleep, their immune system can become weaker.
I hope this helps you.
How long will it take for 40.0 grams of Radium-226 (Ra-226) to decay to leave a total of 2.5 grams of Ra-226? Ra-226 has a half-life of 1600 years.
Answer:
6400 years
Explanation:
Given that;
N/No =(1/2)^t/t1/2
No = amount of radioactive material originally present
N = amount of radioactive material present at time t
t= time taken for N amount of radioactive material to remain
t1/2 = have life of the radioactive material
2.5/40 = (1/2)^t/1600
1/16 = (1/2)^t/1600
(1/2)^4 = (1/2)^t/1600
4 = t/1600
t = 4 * 1600
t = 6400 years
What are some living and non living things that change mountains over time?
Answer:
Rocks are important to the mountain ecosystem they can provide homes for animals like Pika and Ermine. Pika and Ermine can live in stacks of rocks. Soil is also important, it can provide homes for example Ermine can live in burrows. Another non living thing that helps the mountain ecosystem is water.
Explanation:
Canada has the ___ land mass in the world.
A. largest
B. 2nd largest
C. 3rd largest
2nd largest on the worls
Answer:
2nd largest, Russia is the biggo boi
Plz Help
A population of wolves migrate North in search of food. As the wolves travel they enter a region that has long, snowy Winters. This makes them better able to sneak up on prey.
A.) Give two reasons that the population is not a Hardy Weinberg equilibrium.
C.) How are the allele frequency change in the wolf population
Answer:
A, This is the case of selective pressure of environmental factors like snow, due to which favored the expression of the allele that formed white coat phenotype. This is not a Hardy-Weinberg principle, in which no selective pressure is applied. The relative frequencies of the alleles change in the gene pool, due to selective pressure, and the expressed alleles are often significant for survival in those conditions.
b,HW equilibrium means no selective pressures like the long, snowy winters selectively favoring the white coat phenotype over the other coat phenotypes. Selective pressures change the relative frequencies of the alleles in the gene pool. It also means the population does not have either immigration or emigration to change the ratios of alleles in the gene pool The Hardy-Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population has no selection pressure, no gene flow, no nonrandom mating, not even genetic drift.
C, ?? I don’t know
Explanation:
A nucleotide does NOT contain:
O Aphosphate group
O A nitrogen group
O A 5-carbon sugar
O Polymerase
Answer:
Polymerase
Explanation:
DNA polymerase adds nucleotides but it is not in nucleotides.
A chemical which consists of just one kind of atom is always:
a molecule
an element
a mineral
a rock