Answer: B
Explanation: Frogs have a moist, permeable skin, which can transfer gasses such as carbon dioxide and oxygen. Humans have dry skin that is impermeable to gas exchange, so almost all gas exchange takes place in the lungs. This means human lungs must be more efficient than frog lungs
Answer:
B
Explanation:
it is so due to osmosis because molecules of oxygen can move through a semi permeable membrane or a permeable membrane and wet membrane is an example
Internal framework of bones
Answer:
is this homework ?? when is this due
What is the main difference between Domain Archaea and Domain Bacteria?
Answer:
Bacteria contain peptidoglycan in the cell wall; archaea do not.
Explanation:
The cell membrane in bacteria is a lipid bilayer; in archaea, it can be a lipid bilayer or a monolayer. Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl.
In species like sea turtles with high juvenile mortality, low adult mortality, and low fecundity, conservationists can most effectively help them by _____. View Available Hint(s)for Part A focusing on keeping adults alive focusing on keeping juveniles alive captive breeding programs controlling predator populations
The oceans, lakes and rivers that cover 75% of Earth's surface are called the
A
lithosphere.
B
troposphere.
с
mesosphere.
D
hydrosphere.
A condition known as varicose veins is due to leaky venous valves and causes blood to accumulate in veins. Why are valves found in veins, especially those in the lower extremities
Varicose veins are a form of chronic venous insufficiency, or a defect in the veins that prevents them from pumping blood properly.
What are venous valves?These consist of two elastic flaps of tissue that alternately open and close allowing blood to flow through the valve to another vein.
These work in conjunction with the musculoskeletal system, the muscles are constantly tensing and releasing, a pattern that causes the valves to open and close as needed.
Many veins are found, especially in the lower extremities, because they have valves that act in only one direction, a tightening of the muscles results in an opening of the valves, while a relaxation of the muscles results in the closing of the valves.
Therefore, we can conclude that one of the main functions of the venous valves is to guarantee the adequate return of blood to the heart, if a return flow occurs, the blood can begin to accumulate in the veins, potentially damaging them.
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PLS HELPPPPPPPPP!!!!!!!!!! Select the correct word to complete the sentence.
The desert might seem like an unlikely place to find fish. There are long dry periods between rains when most surface water evaporates. Nonetheless, about 30 species of desert pupfish live in the American Southwest. Very hot water, unpredictable weather, high salt content, and predators are all sources of
[ choose one>>> ] [hormones], [homeostasis], [response], [stress]
for the pupfish.
Answer:
hemeostasis
Explanation:
it makes sense because stress, response and hormones have nothing to do with the pupfish surviving. Homeostasis allows the pupfish's systems to remain stable and help them to survive these harsher conditions.
What is a benefit of using geothermal power for energy over bioenergy?
Geothermal energy is found in most locations.
Geothermal systems are less expensive to build.
Homeowner will see large cost savings over time.
There will be a larger reduction of greenhouse gas emissions.
Answer:
option 4
Explanation:
there will be less emission of gasses like methane and carbon dioxide from biomass
Schist rock composition?
Answer:
schist rock are composed largely of platy minerals such as
muscovite, chlorite, talc, sericite, biobite, and graphite
Go outdoors and look for ten different plants. See if you can figure out which type of seed dispersal each plant uses, and make notes about each one. Some may have more than one method of dispersal. If you find a plant that you suspect disperses seeds in a way that you haven't studied, try to figure out how the plant does it. When you're finished, write your discoveries in a list with the name of the plant you observed (if you know it; otherwise, describe the plant).
Some you wouldn't see by stepping outside, but it gives you a general understanding of what you should be looking for.
Hope this helps!
A muscle spindle responds to the ____. a. fatigue of the muscle b. oxygen level in the muscle c. acetylcholine concentration at the nerve-muscle junction d. stretch of the muscle
(D)-Stretch of muscles
Enjoy!
In a life cycle with alternation of generations, multicellular haploid forms alternate with ________.
Answer:
multicellular diploid forms.
Explanation:
Describe the founder effect.
The founder effect is the loss of genetic variety that happens when a new population is founded by a small number of individuals from a larger population, according to population genetics. Ernst Mayr was the first to thoroughly explain it in 1942, based on previous theoretical work by people like Sewall Wright.
Please help!! 10 points!
Answer:
that looks correct to me
Explanation:
if not the maybe switch 2 and 3
The serous fluid within the pericardial cavity works to:__.
a. eliminate blood pressure spikes.
b. equalize the pressure in the great vessels.
c. lubricate the membranes of the serous pericardium.
d. slow the heart rate.
The serous fluid within the pericardial cavity works to lubricate the membranes of the serous pericardium.
The pericardial cavityThe pericardial cavity is a space that is enclosed by the two layers of serous pericardium around the heart.
The pericardium is a thin, two-layered, fluid-filled sac that covers the outer surface of the heart. it is divided into 2 namely:
fibrous pericardium and serous pericardium.The serous fluid which is also called pericardial fluid helps to decrease friction between the pericardial layers. This is because, they lubricate the membranes of the serous pericardium.
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how do you think genetic screenings today might affect a person’s ability to get a job, or get health insurance ?
Answer:
Genetics can reveal many different aspects, such as a person may be inclined to such as increased risk of addiction to various substances therefor making an employer feel as though hiring said individual could be a greater risk and a bad investment.
Explanation:
1. Which of the following does NOT describe a use of fossils?
O Gives an example of what past animals may have looked like.
O Determine features of the climate in which these animals lived.
.
O Provide evidence of the activity of animals at the time.
O Determine the sound that animals made during their lives.
D.) Determine the sound that animals made during their lives.
hello humans ~
______ is used for the production of alcohol and wine.
Yeast
Mosquito
Ant
Algae
Explanation:
the correct answer is yeast
What path does pollen need to travel for the plant to reproduce?.
Answer:
stigma
Explanation:
Pollination occurs when pollen grains from the anther land on a stigma. After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary. Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules.
Answer:
The Stigma
Explanation:
This is the male reproductive cell, and then, when it travels through the Stigma, then, it goes on the top of the flower, then, a bee carries it to another plant's female reproductive cell, then the cells go into the embryo and create a plant's seed.
Thanks!
according to cell theory which are made of cells check all that apply
Answer:
Cells are the basic building blocks of all living things.
Explanation:
I have no idea what the answers are but every living thing is made of one or more cells.
Why does active
transport require
energy?
nsport.
A. Materials are moved with the
concentration gradient.
B. Materials simply flow along the
path of least resistance.
C. Materials move against a
concentration gradient.
D. It does not require energy.
Answer:
C. Materials move against a concentration gradient.
I hope this helps you
:)
Answer:
C
Explanation:
Materials cannot naturally move against the concentration gradient thus require energy for their movement
What structures have the chromosomes formed on page 5?
Answer:
Homologous chromosomes come together forming a tetrad
Explanation:
Explain how your cells make proteins.
Answer:
The genetic code is essentially the same throughout nature.
Explanation:
hello humans ~
The bacterium present in curd is:
Salmonella typhi
Lactobacillus
Penicillin
Vibrio cholera
Explanation:
the answer is Lactobacillus
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
criminals
Explanation:
they are mentally and physically hurt for the crimes they have committed
Help me please help me
Answer:
Attachment
Explanation:
I hope this is right
Answer:
I think it's replication
Explanation:
Please mark me brainliest if correct
__________ and their surrounding wetlands are bodies of water usually found where rivers meet the sea.
Answer: Estuaries
Explanation: Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea.
(sup bestie)
if sally marries a man who is an asymptomatic carrier for alkaptonuria, what is the probability that they would have a son with alkaptonuria
Alkaptonuria is passed down through the generations as an autosomal recessive condition. When an individual receives the same faulty gene for the same trait from both parents, they are said to have recessive genetic diseases. If a person is born with one normal gene and one illness gene, he or she will be a carrier for the disease but will not display symptoms. With each pregnancy, there is a 25% chance that two carrier parents will both carry the faulty gene and, as a result, have an afflicted child. With each pregnancy, there is a 50% chance of having a child who is a carrier like the parents. A child's chance of receiving normal genes from both parents and being genetically normal for that attribute is 25%.
The risk is the same for males and females alike.
CFCs can act as greenhouse gases and as chemicals that reduce the ozone levels in the stratosphere. A worldwide ban on CFCs in 1987 was enacted as part of the Montreal Protocol. However,
according to the graph, the level of CFCs did not significantly decrease after 1990. Which statement best explains the level of CFCs after 1990?
lSince the level of CFCs did not significantly decrease after 1990, CFCs will contribute to the current increase in global warming
What are greenhouse gases?Greenhouse gases are those gases which contribute to the increase in global warming due to their property of preventing heat energy escape from the earth.
CFCs are greenhouse gases.
Therefore, if the level of CFCs did not significantly decrease after 1990, CFCs will contribute to the current increase in global warming.
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Which of the following are controversies over water usage in the United States? Select three correct answers.  whether dams impact the volume of rivers
Whether there are hidden cost to tap water
Whether people should drink bottled or tap water
Whether water treatment should be privatized
Whether dams increase the salt level of water
Whether people should build dams on rivers
Are controversies about water use in the United States, whether dams impact the volume of rivers, Whether people should drink bottled or tap water and Whether water treatment should be privatized.
Controversies over water use in the United States?Domestic access to water represents an ongoing environmental injustice in the United States. However, the specific dimensions of this injustice and how they vary across types of water deprivation remain largely unknown.
Can you drink tap water in the US?Since the passage of the Clean Water Act in 1972, access to clean water for all Americans has been a goal of the United States government.
With this information, we can conclude that there are controversies about water use in the United States, whether dams impact the volume of rivers, Whether people should drink bottled or tap water and Whether water treatment should be privatized.
Learn more about Water in brainly.com/question/16630851
Answer:
The answer's are:
Explanation:
-whether water treatment should be privatized
-whether people should drink bottled or tap water
-whether people should build dams on rivers
hello humans ~
Partial sterilization of a product such as milk at a high temperature is known as:
Pasteurization
Filtration
Pickling
Refrigeration