Answer:
D: an animal moves to a new population and mates
Explanation:
Gene flow, also known as gene migration, is the transfer of genetic material (DNA) from the population of a species to another population of the same species. Gene flow can be caused by migration of one member of a particular population that interbreeds in another population or due to aided transfer of gametes from one population to another, as in the case of cross-pollination.
Based on the above definition, an animal moving from its own population to a new population and mates there represents a scenario that causes gene flow.
In the first option, one flower of a population is pollinating another flower in the same population. This doesn't show gene flow because there is no transfer of genes (present in gametes) to a different population.
To test the effectiveness of a new nutrient supplement, one group of identical mice is given the supplement, and the other group is
not given anything. Which is the most complete list of the parts of an experiment presented in this scenario?
Answer:
The options are
A.independent variable, dependent variable
B.control group, experimental group, dependent variable
C.independent variable, control group, experimental group
D.control group, experimental group
The answer is C.independent variable, control group, experimental group.
The most complete list of the parts of an experiment presented in this scenario would surely be the independent variable, the control and experimental group inclusive.
Answer:
The correct answer is C.Imagine you are an engineer who needs to test a scale model of a
footbridge. It will be a 1/20 scale model. The footbridge will cross
over a busy road and allow people to cross the road safely. How
could a relatively small design error of 2 centimeters in the model
system cause a significant problem in construction of the bridge?
Answer:
The problem will be because:
The error in the construction of the bridge will be actually 40 cm.Explanation:
When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error.
Which of these engulf bacteria and break them down?
lymphocytes
phagocytes
T-cells
B-cells
Answer:
The answer is option b.
phagocytes.
Hope this helps.
Answer:
phagocytes
Explanation:
What is a mutation?
A. A permanent change in DNA or RNA
B. A harmful change to an organism's phenotype
C. A damaged protein
D. The visual appearance of an organism
Answer:
its a alteration i would go with B
Explanation:
The first group to exhibit an amniotic egg was the
Gender expression may or may not represent a person gender identity true or false
Which of the following is an inference?
Answer:
Well you didn’t state any possible answers but
an example of is inference is, if you see someone eating a new food and he or she makes a face, then you infer he does not like it.
Explanation:
The letters A, B, C, and D represent four positions of the Moon in its orbit around Earth. The nighttime sides of the Moon and Earth are shaded. Approximately how many weeks will it take the Moon to move from position B to position D?
Can I also get an explanation please? WILL MAKE BRAINLIEST!
Answer:
14 days
Explanation:
it takes 28-29 days for the moon to orbit the earth so half of that is approx 14
Answer:
The amount of days is about 2 weeks.
Transpiration occurs when plants release water vapor.
True or False?
Answer:
true
Explanation:
Answer:
false Explanation: The water eventually is released to the atmosphere as vapor via the plant's stomata tiny, closeable, pore-like structures on the surfaces of leaves. overall this uptake of water at the roots, transport of water through plant issues, and releases of vapor by leaves is known as transpiration.
What statement is one component of the cell theory?
Answer:
Explanation:
Living things are composed of one or more cells at the cell is the basic unit of life in the cells arise from existing cells
Waves can be classified as transverse, longitudinal, or surface waves. This depends on the ___________ of movement of the ________ in the medium compared to the direction of the energy.
Answer:
direction, vibration
Explanation:
Hope this answer helped!
- hershy103
Describe a sperm cell. How does each structure contribute to the sperm's function? please this should be at least 150 words, I will be MARKING as BRIANILIST , please don't copy from Google, thank you so much.
Answer:
A sperm is a gamete male or a sex cell. It joins with the female gamete, called an ovule, to create a zygote. The process of formation is called fertilization.There are two parts to the sperm cell, the head and the tail. The arrangement of the sperm makes it ideally built for the efficiency of its purpose. The tail of the sperm helps give it the momentum it needs to reach the egg cell, so that the embryo can be created first. The sperm develops a tail and sheds the excess cytoplasm of the shaft. When the sperm is full, the tail will spin like a propeller such that the sperm will move itself forward. Mitochondria in the linking component generates the energy ( ATP) required to travel.The sperm cell is made up of the head, body (mid-section) and tail. Each of these parts is equipped with different molecules and a smaller structure that enables the sperm to function properly as a whole. Mature sperm cell (sperm cells) is 0.05 milliliters wide. It's made up of the head, body and tail. The head is covered by the ac-cap and contains a dense genetic material nucleus of the 23 chromosomes.
hope this helped!
Answer:
A sperm cell is the male reproductive sex cell. Sperm cells of different animal species have different shapes and structures. In humans it consists of two major parts, the head and the tail. The head is flat and almond-shaped. The head contains the nucleus which carries genetic substances called chromosomes. One sperm cell contains half the number of chromosomes the species has. Humans have 46 chromosomes so each sperm cell has 23. The sperm cells also carry the X or Y chromosome that determines the sex of the future child.
The tail of the sperm, sometimes called the flagellum, is a slender, hairlike bundle of filaments that connects to the head. It whips and undulates so that the cell can travel to the egg. Following sperm deposition in the female reproductive tract, activation of tail movement is suppressed until the sperm is carried to within a relatively short distance of the egg. This gives the sperm an increased chance of reaching the egg before exhausting its energy supplies.
Since the beginning of the Industrial Revolution, how much has the pH dropped in the oceans? 0.9 0.7 0.1 0.3
Answer:
0.1
Explanation:
pH of ocean has decreased from 8.2 to 8.1, it means by 0.1, which refers that slowly ocean water is moving towards getting acidic and that will be very harmful for marine life and human population as well.
Industrial revolution is one of the main cause of decreasing pH in oceans as it leads to pollution, combustion of fossil fuels and global warming which releases more amount of CO2. Most of this CO2 dissolves into seawater, mix with H2O and form carbonic acid (H2CO3), which is acidic in nature.
Hence, the pH is dropped in the oceans by 0.1.
Do frameshift mutations involve a substitution or a deletion? Select the correct answer
Answer: deletion
Explanation: A frameshift mutation is a type of mutation involving the insertion or deletion of a nucleotide in which the number of deleted base pairs is not divisible by three. "Divisible by three" is important because the cell reads a gene in groups of three bases.
If you weigh 220 lbs and there are 2.2 lbs/kg; how many grams do your weigh?
A-100 g
B-1000 g
C-1,000,000 g
D- 100,000 g
220 Lbs divided by 2.2 L bs = 100 kg
100 kg to grams = 100,000 g
D. 100,000 g
Do you divide pounds by 2.2 to kg?To convert pounds into kilograms, divide the number of pounds you have by 2.2046. So if you have 20 pounds, that works out to 20 / 2.2046 or 9.0719 kilograms.
How do you calculate pounds to grams?To convert a pound measurement to a gram measurement, multiply the weight by the conversion ratio. The weight in grams is equal to the pounds multiplied by 453.59237.
To learn more about convert a pound measurement, refer
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Water is a universal solvent because it can be a solid, liquid, or a gas * True or false??
Answer:
Yes! ( True )
Explanation:
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. ... Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge
What plant is this? What's its purpose?
On April 20, 2010, an explosion on the Deepwater Horizon Macondo oil well drilling platform released 4 million barrels (636,000 cubic meters) of oil into the Gulf of Mexico. It took scientists and engineers nearly three months and several different attempts to cap the well. The Macondo oil well was located 1524 m (5000 feet) below the surface of the water, about 80 km (50 miles) off the coast of Louisiana. The spill affected 2113 km (1300 miles) of shoreline along the coasts of five states. Most crude oil contains 84–87% carbon by weight. Scientists have not yet fully assessed the environmental impact of the accident.
Reducing our dependence on petroleum is a difficult task, so policy makers are organizing it into smaller, simpler problems that can be solved more easily. Choose two of the solutions below that may help reduce our dependence on fossil fuels.
a
Researching alternative fuels to petroleum, such as ethanol.
b
Increasing taxes or fees to help pay for cleanup costs.
c
Requiring rooftop gardens to be built on all new buildings to reduce air pollution.
d
Developing transportation methods that do not require the use of petroleum products.
Answer:
I believe your answer is. A
Explanation:
What is an amino acid?
Answer:
An amino acid is a simple organic compound containing both a carboxyl and an amino group.
Explanation:
I hope this helps!
Answer:
Amino acid is
Explanation:
Amino acids, often referred to as the building blocks of proteins, are compounds that play many critical roles in your body.
They're needed for vital processes like the building of proteins and synthesis of hormones and neurotransmitters
Which gland secretes epinephrine?
thyroid
adrenal gland
pineal gland
pituitary gland
How traumatic is this data collection for the animals that are caught and brought on the research boat
Answer:
Capture myopathy
Explanation:
It should be understood that any animals that is captured and placed on a boat for research, might be needed to be tied to avoid it from trying to escape, which might cause the boat to capside.
In this case, the animal may experience a situation known as a capture myopathy. This is a kind of muscle meltdown, and if care is not taken, the animal might eventually become paralysed.
Is it 70%???? Or 25????
Answer:
60
Explanation:
I personally think it is 60 percent
Do living organisms depend on each to survive?Why or why not
Answer:
Yes (very true)
Explanation:
All living organisms depend on each other to survive, whether be a small bacteria or something as large as blue whales. Living organisms depend on each other and on their environments, or habitats, to meet their needs for survival. For example there's this concept called symbiosis, which explains the relationship between two organisms or more where both benefit most of the time from the association. For example, some plants and fungi have symbiotic relationship where plants provide food for fungi (such as carbohydrates) and in return, fungi colonize the roots of plants and provide extra absorption of nutrient and water.
The updrafts and downdrafts represented within this cloud are primarily caused by differences in?
A.altitude above sea level
B.air density
C.relative humidity
D.specific heat
Answer:
B.air density
Explanation:
Updraft and downdraft is the upward and downward movement of air.
It caused by differences in air densities. There could be differences in air current due to the heat that occur in the ground during the day time which makes air above more warmer than the air below. The air above is less dense as it rises above it becomes cool.
It also occur when air current moves over mountains.
If plant sap has as much sugar as a can of soda, do you think that if you bit into a plant’s leaves or stems, would it taste sweet? Why or why not?
Answer:
No
Explanation:
If plant sap has as much sugar as a can of soda, they will not taste sweet if one bit into their stems of leaves.
This is because most plants do not store sugar, which is the product of photosynthesis, in leaves or stems. The few ones that store their photosynthetic products in leaves/stems do not store them directly as sweet sugar. They often stored them as starch which is not generally sweet in taste.
Hence, plant's leaves/stems will not taste sweet even if they have as much sugar as a can of soda.
What would be the first thing you would do if your clothes caught fire while working in a laboratory?
O A. Call out to your teacher
OB. Drop and roll on the floor to extinguish the fire
O c.
Run towards a source of water to extinguish the fire
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Next
Answer:
If your clothes caught on fire and you had the oppertuinity to quickly take it off it would be better but in this case.
Explanation:
B, drop and roll on the floor till the fire is gone
a hormone Cascade occurs when
Answer: A hormone can stimulate the release of series of other hormones, the last of which activates a nonendocrine target the cell this is called a hormone cascade pathway. The release of thyroid hormone results from a hormone cascade pathway the hypothalamus, anterior, and thyroid gland.
How do barnacles get nutrients?
O They catch small land insects.
O They attach themselves to seaweed and feed on it.
O They filter microscopic organisms from the waters.
O They crawl upon the ocean floor and feed on parasites.
Answer:
The answer is: They filter microscopic organisms from the waters.
Explanation:
Barnacles are filter feeders, which is why they are usually on dock poles and non-moving structures underwater. They do not need to travel to get food, because it comes to them!
Answer:
The answer would be that they filter microscopic organisms from the waters .
Please Help!!!!! Emergency!!!
Which of the following organisms live in the desert biome? (Select all that apply)
a. foxes
b. camels
c. desert hares
d. birds
e. reptiles
f. beavers
g. cactii
h. deer
i. small trees
Answer:
a. foxes
b. camels
c. desert hares
d. birds
e. reptiles
g. cacti
i. small trees
Explanation:
Hope this helps! May I get brainliest? -w-
Answer:
camels, desert hares, birds, reptiles, cacti, small trees(maybe) foxes if you count fennec foxes
Explanation:
fennec foxes live in the desert
camels are the image of a desert
desert hares have desert in the name
birds:road runners
reptiles: rattlesnakes
beavers: need rivers!
cacti: in the mage of deserts
deer:forest
small trees: maybe
I hope this helps u! ;)
PLS give brainliest! i need to level up, and a thx too!
what causes rain to fall from the sky
Answer:
Rain is precipitation.
here’s the cycle:
1. Evaporation.
A body of water is evaporated by the heat of the sun. The water particles turn into vapor gas and move up as they are evaporated, and this leads to the next step.
2. Condensation.
The particles/molecules are collected inside of the clouds. They continue to collect until they’re ready for the next step.
3. Precipitation.
The droplets are now large enough to form rain, so they fall out from the clouds. This is precipitation.
And the cycle continues.
So that’s how rain is formed.
Hope this helps and please hit the thanks button and mark me brainliest if it did :)
Answer:
The water cycle
Explanation:
The water evaporates into the clouds and when the clouds are full it rains.