Answer:
B
Explanation:
why are the sightings of some comets so many years apart?
Answer:
they have long elliptical orbits
Explanation:
Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.
is random
is a mechanism for evolution
is often related to disasters
is also called “migration”
deals with movement between populations
Answer:Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.
✔ Genetic drift
is random
✔ Both
is a mechanism for evolution
✔ Genetic drift
is often related to disasters
✔ Gene flow
is also called “migration”
✔ Gene flow
deals with movement between populations
Explanation: i got it right
Answer:
Genetic drift- is random
Both- are a mechanism for evolution
Genetic drift- is often related to disasters
Gene flow- is also called "migration"
Gene flow- deals with movement between populations
Explanation:
I just did the assignment. Hope this helped :)
Someone help me with this plz
Which of these is an external pest
for beef animals?
A. Crickets
B. Grasshoppers
C. Lice
D. Spiders
Answer:
C
Explanation:
Lice. External parasites are those that live on the outside of the body. A few of the most common external parasites that affect beef animals
4. Which of the following crustal features would be the result of two
continental tectonic plates moving away from each other? *
B Volcanoes on land
A Mountain range
C Rift valley
D Mid-ocean ridge
Answer:
A mountinrange
Explanation:
because the plates are moving away from each other
What might explain why light travels in a straight line? Group of answer choices If there is nothing to interfere with light waves, they should travel in a straight line. Light waves will always travel in a straight line, even if they come into contact with another object. Light waves don't travel in a straight line. Light waves travel in a straight line because sound waves travel in a straight line.
Answer:
A. If there is nothing to interfere with light waves, they should travel in a straight line.
Explanation:
A light wave is a transverse wave, and do not require material medium for its propagation. It travels in straight lines in all directions from the source.
Light waves travel in straight paths (a principle referred to as the rectilinear propagation of light) known as rays, of which the combination of two or more rays gives a beam of light. When there is an obstruction on or interference with the path of light, it stops traveling in a straight line due to either absorption, refraction or diffraction.
When light from a source is forced to travel in one direction only, it is said to be polarized.
What two gases make up most of the atmosphere?
Answer:
Using the slope-intercept form, the slope is −35 . The equation of a perpendicular line to y=−3x5+3 y = - 3 x 5 + 3 must have a slope that is the negative reciprocal of the original slope
Answer:
Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2).
Several kinds of specialized cells work together to create the sense of hearing. Hair-shaped cells sense vibrations and nerve cells send signals to the brain. Structural cells hold the hair cells in place. No matter their specialty, which functions must all cells perform to survive? Choose the three statements that apply.
Answer:
The correct answer is -
bringing in nutrients and water,
getting rid of wastes, and
obtaining energy.
Explanation:
All cells no matter what type of cell they are or their specialty, they need to bring water and nutrients to work properly and survive. These cells also need to remove cellular waste to prevent toxicity in the cell. All the toxic material or metabolic waste must be removed from the cells.
All the cells of the bodu=y including hair-shaped cells or structural cells all required energy to perform their function therefore obtaining energy is one of essential function cell need to be performed.
Need help fast will mark brainliest
4. Write the building units of the below given nutrients.
a. Carbohydrates -
b. Proteins-
c. Nucleic acids -
Explanation:
1)
building blocks of Carbohydrates are monosaccharides that are simple sugars
2)amino acids are the building units of proteins there are 20 amino acids found in human body that are building blocks of proteins
3)Nucleotides are the building blocks (monomers) of nucleic acids, DNA and RNA.
Describe the role of the plate tectonics in the formation of the Himalayas
how does the coriolis effect affect the weather
Answer:
Explanation:Weather Patterns
In the Southern Hemisphere, currents are deflected to the left. As a result, storm systems seem to rotate clockwise. Outside storm systems, the impact of the Coriolis effect helps define regular wind patterns around the globe. As warm air rises near the Equator, for instance, it flows toward the poles.
A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? (Formula: )
0.1 kg
0.2 kg
0.4 kg
0.5 kg
500=1/2*m*50^2
500=1/2*m*2500
500=m*1250
m=500/1250
m=0.4 kg
help asap i’ll mark brainliest! pls and ty
Answer:
answer is 0 degree I guess
Explanation:
not sure about it
FUNCTIONS OF THE LIVER OTHER
THAN PRODUCTION OF BILE
Explanation:
production production of certain proteins for blood plasma this is best function of bile
(word bank)
_____ is an effective way to reduce air and water pollution.
plz help!!!
How ocean trenches and mid-ocean ridges formed?
Answer:
Explanation:
The oceanic lithosphere is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at ocean trenches. ... A process previously proposed to contribute to plate motion and the formation of new oceanic crust at mid-ocean ridges is the "mantle conveyor" due to deep convection
How does cohesion(water property) aids life in existing on Earth?
Overproduction results in more individuals in a population than the resources can support. What does this cause?
Answer:
Explanation:
Overproduction result in when populations produce more progeny which has the ability to live and survive all through the reproductive age. Overproduction lead to competition.
Competition occur as a result of too much population on a limited resources. Because the population is more than the resources, organisms tend to compete for food, nesting , space, nest which affect their ability to reproduce successfully and also survive.
Answer:
It causes competition
Explanation:
I took the test. Hope this helps
Which of the follwoing supplies us with the energy we need?
DAP
ATP
ATM
Answer:
the answer is atp because an atm is a money despincer and dap is when a fish lets the fly bob lightly on the water and atp is molecules sending energy to are cells.
Explanation:
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Answer:
B
Explanation:
Answer:
B
Explanation:
hope this helps :D Have a great day :3
Polytheism is the belief in one all-knowing God.
True or false
Answer:
it's false
coz
Polytheism is the belief in or worship of more than one God.
How is a pencil biologically different from a cat?
Animal cells are considered eukaryotic, and bacteria cells are considered prokaryotic. The difference between these two cell types is that–
Answer:
The main difference is that in prokaryotic cells the genetic material is not separated from the cytoplasm and eukaryotes present the genetic material is organized in chromosomes surrounded by a membrane that separates them from the cytoplasm.
Explanation:
All living beings are made up of cells that, depending on their structure, can be eukaryotic or prokaryotic. The eukaryotic cell is the building block of life for protozoa, fungi, plants, and animals. It is characterized by keeping its genetic material packed within a membrane, forming the nucleus. It also has other intracellular structures surrounded by membranes, known as organelles: mitochondria, vesicles, chloroplasts, among others.The prokaryotic cell is a simple organism composed of a membrane and cytoplasm, which lacks a nucleus and does not present organelles like eukaryotic cells ( mitochondria, chloroplasts and endoplasmic reticulum). In addition, it has a cell wall that supports the cell.
Why can algal blooms be dangerous?
a. Some dinoflagellate species synthesize toxins.
b. Too much algae can limit photosynthesis.
c. dinoflagellates use up needed oxygen
d. Algae produce methane.
e. Too much algae causes pollution.
Answer:
A.
Explanation:
I hope I helped you !!!
Max tried an experiment in which he added red-dyed salt water to clear freshwater. He noticed that a lot of the red water sank below the clear water. Which of the following statements explains why this happened?
a. Adding salt to water makes it more dense.
b. Adding salt to water makes it less dense.
c. Adding salt to water decreases its temperature.
d. Adding salt to water increases its temperature
Answer:
A
Explanation:
Adding salt to water causes its density to increase. Denser water will sink below less dense water.
As salt water is denser and will sink at the bottom and adding the salt raises the temperature of water body and hence will make it more warm and saline.
A max tries to add red dyed salt water to clear the fresh water he sees a red color sinking below the fresh water that is cool.The option D is correct.
Learn more about the which he added red-dyed salt water to.
brainly.com/question/8499012.
2) The data here indicates the number of species of amphibians that are
affected by several factors in their environments.Calculate
approximately how many times more amphibian species are impacted
by habitat change than the presence of pesticides and chemical toxins.
A) 3.5
B)
5
100
D) 2500
Answer: B. 5
Explanation:
Write the molecular formula of glycerol and also write it's two properties.
Explanation:
Hey there!
The molecular formula of glycerol is:C3H5(OH)3
Two properties of glycerol are:
It is colourless viscous liquid with sweet tastes.It freezes at 17.8° and it's boiling point is 290°.Hope it helps..
True or False: Plate tectonics affect ocean current
movements, which alters the global climate.
Answer:
True
Explanation:
True. Plate tectonics in the movement of continents over the course of millions of years. This can affect both global and local patterns of climate and atmosphere-ocean circulation. The position of the continents determines the geometry of the oceans and therefore influences patterns of ocean circulation. The locations of the seas are important in controlling the transfer of heat and moisture across the globe, and therefore, in determining global climate.
Someone please help me with Punnett square
Answer:
1. Phenotype ratio = 3:1
Genotype ratio = 1:2:1
2. Phenotype ratio = 4:0
Genotype ratio = 4:0
3. Phenotype ratio = 1:1
Genotype ratio = 1:1
Explanation:
According to this question, a gene coding for tallness is involved. The allele for tallness (T) is dominant over the allele for shortness (t). The phenotype and genotype ratio of each parental combinations is given in the attached punnet square.
1. Tt × Tt
In this cross, both parents (Tt) will produce T and t gametes. Using this in a punnet square, the offsprings will be as follows: TT, Tt, Tt, and tt. Hence, The phenotype ratio is 3 tall: 1 short while genotype ratio is 1(TT): 2(Tt) : 1(tt).
2. TT × tt
In this cross, TT will produce T gametes while tt will produce t gametes. Using this in a punnet square, all offsprings will be heterozygous "Tt". Hence, The phenotype ratio is 4 tall: 0 short while genotype ratio is 4 (Tt) : 0 (tt).
3. tt × Tt
In this cross, tt will produce t gametes while Tt will produce T and t gametes. Using this in a punnet square, the following offsprings will result: Tt, Tt, tt and tt. Hence, The phenotype ratio is 1 tall: 1 short while genotype ratio is 1(Tt) : 1(tt).