Answer:
Diagram pleassseeeee
Explanation:
Answer:
The layers of cells lining the alveoli and the surrounding capillaries are each only one cell thick, so the exchange surfaces are very thin, and they are in close contact with each other. Oxygen therefore diffuses quickly through the alveolar walls and into the capillaries.
Explanation:
I couldn’t find it on here so here’s the answer-The Soviet Union launched the first human spaceflight on April 12, 1961, carrying cosmonaut _____.
It’s Yuri Gagarin
Answer:
that's great man
Explanation:
thanks alot for this, it really helps out
Answer:
Thank you!
Explanation:
It is Yuri Gagarin, I just took the test too and got it right.
The dust and gas that escapes from a comet creates a/an
OA. Meteor
OB. Asteroid
OC. Second comet
OD. Coma
Answer:
Coma
Explanation:
Such a cloud, termed a coma, is a distinguishing feature of comets and consists of gases and entrained dust escaping from the cometary nucleus when sunlight causes its ices to sublimate.
Evan's playroom is 4 m by 3 m. The area of the room is:
o 7 m
07 m2
O 12 m
O 12 m2
Answer:
12 m^2
Explanation:
Area = length * width
A = 4m * 3m
A = 12 m^2
(Area is measured in square units)
Answer:
D. 12 m2
Explanation:
To do this problem, you need to find the area. To find the area of a rectangle, you multiply length x width. In this scenario:
4 x 3 = 12.
So, we know that the first two options are incorrect. Next, we have to look at the unit of measurement that we are needed to imply. In this case, we are using meters, which we need to square. Therefore, the answer is 12 m2.
Hope this helped!
if an element has a half-life of 30 million years and there is 12.5% of it remaining in a rock, how old is that rock
Answer:
The half-life of a substance is the amount of time it takes for half of that substance to decay. However, after two half-lives, half of the half remaining will decay, leaving you with one quarter of the original substance.
So, after 1 million years you will have 50% of the original substance remaining.
And, after 2 million years you will have 25% of the original substance remaining.
After 3 million years you will have 12.5% of the original substance remaining.
And after 4 million years you will have 6.25% of the original substance remaining.
Explanation:
Hope it helps:)
6) What must be taken from
14 1 to leave 8 2?
12
3
A.
6 5
12
C. 6
B. 5 ]
12
D. 55
1
If 1 Canadian dollar is
equivalent to J$69.00,
which would give the
equivalent of J$9 500.00?
9 500 x 69
Answer:
Did you know: There are over 1,400 species of bats worldwide. Bats can be found on nearly every part of the planet except in extreme deserts and polar regions. The difference in size and shape are equally impressive. Bats range in size from the Kitti’s hog-nosed bat (also called the Bumblebee Bat) that weighs less than a penny -- making it the world’s smallest mammal -- to the flying foxes, which can have a wingspan of up to 6 feet. The U.S. and Canada are home to about 45 species of bats and additional species are found in the U.S. territories in the Pacific and Caribbean.
Explanation:
which of the following are represented by upper and lower case letters
A. proteins
B. chromosomes
C. genotypes
D. phenotypes
Answer: B. Chromosomes
Explanation:
HELP FAST PLEASE JUST ANSWER FONT EXPLAIN
Answer:
B
Pls mark me as brainliest
Thank you
In the chemical formula for an ionic compound which is written first? A positive ion a negative ion or sub script or a charge
Answer: charge
Explanation: because once the charge is there it takes over for the rest of them
In a population of worms, the coloration of all individuals has been the same brown color for many generations. Last year, a worm was born with white coloration. The worm then produced several white offspring. The resulting change in the population was caused by *
Answer:
fufjfbtjfifigugxfzdyñdydydy
The number of white-tailed deer in certain areas of Long Island, NY has increased significantly. Homeowners and farmers have put up tall fencing to protect their gardens and crops from the deer. One reason why the white tailed-deer might have increased significantly in certain areas of Long Island is * 3 points A the lack of natural predators B an increase in deer pathogens C a shortage of biotic resources needed by the deer D that carrying capacity has no effect on deer populations
Answer:
A. the lack of natural predators
Explanation:
The white-tailed deer inhabits a wide variety of environments. The species characterizes by its adaptation to different conditions, especially in contact with human beings and their activities.
Due to human action and the change in the environment, populations of white-tailed deer have expanded to Canada. Due to its adaptability capability, the deer have reproduced more than expected in some regions, up to the point of being detrimental for people.
In fact, In the United States and Canada, the overabundance of the species has brought consequences to people, such as plagues, accidents, diseases, material loss, among others.
Human action modified the deer habitat, but other species were affected too. It is the case of wolves or pumas, natural predators of the white-tailed deer. The natural habitats of these species have been destroyed, and they have been summited to extensive hunting for years. Habitat reduction and hunting drove these species to disappear.
One of the principal reasons for deer overpopulation is the absence of predators. Under natural conditions, pumas and wolves keep deer population growth under control. However, once these species were eliminated, the white-tailed deer was not affected by predation pressures anymore
The absence of natural predators and the adaptation capability to different environments and border effects made it possible for the white-tailed deer population to overgrowth.
I. Contamination of groundwater
II. Increased seismic activity
III. Decreased methane emissions into the environment
Hydraulic fracking is using pressurized water to open fissures and fractures in the deep rock formations in
order to release natural gas and petroleum deposits. Which of these is a negative ecological consequence
of hydraulic fracturing (fracking)?
A) I only
III only
B) Il only
D) I and Il only
Answer: l and ll only
Explanation: i took the test
Please help me
I'll give the brainliest!
Please don't answer from links
URGENT !!!!!
Please answer correctly
Answer:
A) Identify the Dependent and Independent variables
The Independent variable is Temperature.
The Dependent variable is the seeds. The dependent variable is the variable that is being studied.
B) Calculate the average height of the seedlings in tube C.
To find the average, you must add up all of the heights and divide by the number of seedlings.
3.4 + 4.5 + 2.5 + 3.7 + 2.8 + 4.4 + 4.3 + 2.9 + 2.1 + 3.7 = 34.3
34.3 ÷ 10 = 3.43 cm
C) Conclusion
The seedlings in tube C grew much taller than the seedlings in tubes A and B.
This means that seedlings germinate better in warmer temperatures.
D) Why does Temperature affect Germination?
The temperature of the climate affects the dampness of the cotton wool. Moisture is key to germinating seeds. Seeds like a moist but not soggy environment caused by the correct temperature.
E) How could the experiment be better controlled?
The light levels in this experiment varied, but were not accounted for in the calculations.
It would have been better to keep them all under the same amount of light in order to keep the experiment accurate.
if you fill out ALL the punnett squares CORRECTLY, then i will give u brainliest, but please help me guys i need this done!!!!!!!!!!!!
Answer:
1) Gg/Gg
/Gg/Gg
3) Dd/dd
/Dd/dd
Explanation:
The two distinct layers of the integument consist of a layer of stratified squamous epithelium called the ______ and a deeper layer of areolar and dense irregular connective tissue called the ______.
Answer:
Epidermis and Dermis
Explanation:
The two distinct layers of the integument consist of a layer of stratified squamous epithelium called the Epidermis and a deeper layer of areolar and dense irregular connective tissue called the Dermis.
The Epidermis is the outermost layer of the skin while the Dermis can be found under the epidermis and is also known as the thickest layer thereby providing strength to the skin
1. What is the independent variable in this experiment?
Answer:
Variables are given a special name that only applies to experimental investigations. One is called the dependent variable and the other the independent variable. The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable.
Explanation:
Answer:
The independent variable is the factor that doesn't rely / change based on another variable. Usually there is an independent, dependent, and constant variable. The dependent variable's "results" and values rely on the independent value.
For example if tomatos were to be grown the independent variable is the type of light the tomato plant is grown under. The dependent variable would be the rate of the growth of the tomato plant. (It relies on the type of light, the independent variable)
Which of the following is not an example of symbiosis?
a. Commensalism
b. Mutualism
c. Parasitism
d. Predation
Answer:
c
Explanation:
parasitism is when only one benefits off of the relationship
Answer:
C
Explanation:
c. Parasitism
What are the four characteristics that that determine to which kingdom an organism belongs?
Answer:
appearance, reproduction, mobility, and functionality
Explanation:
cuáles son las características adaptativas que favorecen la sobrevivencia de los pingüinos?
Answer:
Los pingüinos tienen una cola corta y rígida. Pueden inclinarse hacia atrás y mantener el equilibrio sobre los talones y la cola. Esto reduce la pérdida de calor de los pies al suelo. El color del cuerpo de un pingüino ayuda a camuflarlo cuando nada.
Explanation:
Penguins have a short stiff tail. They can lean backwards and balance on their heels and their tail. This reduces heat loss from their feet to the ground. The color of a penguin's body helps to camouflage it when it is swimming.
Corona viruses are a large family of viruses that can cause ______________________ such as the ________________,
Answer:
Coronavirus disease is a respiratory illness that can spread from person to person. The virus is thought to spread mainly between people who are in close contact with one another (within about 6 feet) through respiratory droplets produced when an infected person coughs or sneezes.5 days ago
Explanation:
Answer: Coronaviruses are a large family of viruses that usually cause mild to moderate upper-respiratory tract illnesses, like the common cold.
Explanation: However, three new coronaviruses have been revealed from animal reservoirs over the past few years to cause large amounts of illness and death. There are hundreds of coronaviruses, most of which circulate among such animals that are smaller. Sometimes those viruses spread to humans which is called a spillover event and can cause disease.
And thats all i really know. :L
In the picture below, a large area of forest is being cleared. The land will be used to build houses.
The construction will most likely
A.
destroy the animals' habitats.
B.
pollute the animals' water supply.
C.
take away air that the animals breathe.
D.
give the animals a new source of food.
Answer:
The answer would be A.
Answer:
A.
Explanation:
The land is living by family
when a vegetable gets put in salt water and collapses why does this happen
Osmosis is defined as the movement of solvent (like water) from a region where the concentration of solute(like salt) is lower to a region where the concentration of solute is higher through a semipermeable membrane.
Salt water is a hypertonic solution as the concentration of salt ( solute) is higher. Therefore, in this case water from vegetable will move outside causing the cells to become fragile.
Assess It!
#1
What is the driving force
of ocean currents and
atmospheric movement?
A. The gravity of the Sun
B. Rotations of Earth
C. The Moon's gravity
D. Unequal heating of Earth by the
Sun
Kesler Science.com
Answer:
D. Unequal heating of Earth by the Sun
Explanation:
Uneven heat causes wind because the hot air rises over the cold air which
I need help with this
Answer:
Eukaryote.
Explanation:
Eukaryotes can be unicellular or multicellular.
Hope this helps, have a great day.
Describe the traits that would have existed in early eukaryotes.
Answer:
Early Eukaryotes were single-celled organisms that were present more than 1.6 to 2.1 billion years ago.
Explanation:
-Eukaryotes could be found in a variety of shapes and had a nucleus, a flexible membrane, and a cytoskeleton.
-Early eukaryotes used oxygen in metabolism.
Answer: Many traits found in eukaryotic cells today would have been found in early eukaryotic cells. First, early eukaryotic cells would have had membrane-bound organelles. Also, DNA probably contained introns since this is seen in many eukaryotic cells today. Chromosomes were probably linear in shape. Lastly, these cells would have had mitochondria and membrane-bound organelles. Since these are seen in all eukaryotic cells today, we can infer that they would have been around in early eukaryotes as well.
Explanation:
Just answered it on EDG
A symbiotic relationship between a predator and it's prey
Answer:
whats all of the possible answers? i can only see up to C
Explanation:
Answer:
E.predation
Explanation:
ito po yung answer ko last week ehh
Ecologists use tools such as binoculars and microscopes to ____________ (observe/model) changes in the environment.
Answer:
observe
Explanation:
Black (B) is co-dominant to white (W). What percentage of the offspring will be black-and-white if a black cat is crossed with a white cat?
Answer:
100% of offspring will be black and white
Explanation:
BW = Black and white
Because 4 out of 4 offispring fom the punnett squares have the genotype of BW, 100% of the offspring will be black and white
All offspring will be black and white. Since 100% of the progeny from the will be black and white due to the genotype of BW in 4 out of 4 offspring,
What is codominance?When two alleles codominate, neither can hide the manifestation of the other allele. However, neither allele is recessive in codominance, and both alleles' phenotypes are manifested.
When two alleles codominate, neither can hide the manifestation of the other allele. Codominant alleles are those that have an independent impact.
Both phenotypes are partially prevalent in codominance. Codominance is best illustrated by if a black cat is crossed with a white cat, all offspring will be black and white.
Therefore, if a black cat is crossed with a white cat, all offspring will be black and white.
Learn more about codominance, here:
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HELP ASAP PLEASE!!!!!!!!!!!!!
Answer:
A) theory
Explanation:
A scientific theory is an explanation of an aspect of the natural world and universe that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.
Help me pls on this question which is the right answer
Answer:
A.
Explanation:
D. is most likely not the answer because it doesn't mention anything involving a increase in hawks nor does it mention A. but A. is more commonly known to cause decreases in certain animal species if affected in there homeland.
~ LadyBrain
Gg is a heterozygous genotype that would show
, recessive phenotype ,Homo-zygous phenotype, Recessive genotype or Dominant phenotype
"Biological" redirects here. For other uses, see Biological (disambiguation).
Biology is the scientific study of life.[1][2][3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field.[1][2][3] For instance, all living organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life.[1][2][3] Finally, all living organisms require energy to move, grow, and reproduce, as well as to regulate their own internal environment.[1][2][3][4][5]
Biology deals with the study of life and organisms.
top: E. coli bacteria and gazelle
bottom: Goliath beetle and tree fern
Biologists are able to study life at multiple levels of organization.[1] From the molecular biology of a cell to the anatomy and physiology of plants and animals, and to the evolution of populations.[1][6] Thus, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they used.[7][8][9] Like other scientists, biologists use the scientific method to make observations, pose questions, generate hypotheses, and perform experiments to satisfy their curiosity about the world around them.[1]
Life on Earth, which emerged before 3.7 billion years ago,[10] is immensely diverse. Biologists have sought to study and classify the various forms of life, from prokaryotic organisms such as archaea and bacteria to eukaryotic organisms such as protists, fungi, plants, and animals. These various living organisms contribute to the biodiversity of an ecosystem, where they play specialized roles in the exchange of energy and nutrients.