Answer:
A
Explanation:
The outermost cells of the skin die and slough off because
Answer:
Explanation:
The keratinocytes: cells found in the outermost layer of the epidermis that produces fibrous protein which gives hair, nails, and skin their hardness and water-resistant properties dies as a result of their distance from the rich blood supply the cells of the next layer lie on top off. Due to less nutrients and oxygen, these cells die as they are pushed towards the surface of our skin.
A lot of echinoderms are named after flowers true or false
Answer:
False, it is only represented by one class: Crinoidea (sea lilies).
Explanation:
Echinoderms (phylum Echinodermata) are marine organisms that comprises more than 6,000 species. These animals are deuterostomes that are differentiated to have an ambulacral vascular system and a pentameric symmetry. Echinoderms are divided in the following classes: 1- Ophiuroidea (snake stars), 2-Asteroidea (sea stars), 3-Crinoidea (sea lilies), 4-Holothuroidea (sea cucumbers) and 5-Echinoidea (sea urchins), which can be easily distinguished by anatomical and ecological characteristics.
which trait does the fly agaric and the palm have in common
e:
Scientists think the earth is approximately how old?
2 billion years
3 billion years
for 4 12 billion years
612 billion years
Scientists think the earth is approximately how old
Answer:
4 billion
Explanation:
Answer:
4 billion
Explanation:
4 billion
g you are given three bacterial cultures: Pseudomonas aeruginosa, Shigella sonnei & Escherichia coli and you carry out a Triple Sugar Iron (TSI) assay for each 1. The tube for P. aeruginosa shows a pink butt, pink slant with no gaps or breaks in the medium and no black precipitate 2. The tube for S. sonnei shows a yellow butt, pink slant with no gaps or breaks in the medium and no black precipitate 3. The tube for E. coli shows a yellow butt, yellow slant with no gaps or breaks in the medium and no black precipitate Which of these organism can reduce glucose but not lactose and/or sucrose?
Answer:
Test Tube 2 (S. sonnei)
Explanation:
Triple sugar iron agar test is the microbiological assay used to test the fermentation reaction performed by the bacteria. The fermentation process differs based on substrate and the acids formed as a byproduct.
The test is based on the byproduct formed as a result of fermentation. The test tube contains 1% lactose, 1% sucrose and 0.1 % glucose, ferrous sulphate, phenol red pH indicator.
When the bacteria ferment any of the three sugar, the medium turns yellow.
In test tube 1- The tube shows pink slant, pink butt and no black precipitate which indicates that no fermentation took.
In test tube 2- the tube shows pink slant, yellow butt and no black precipitate due to fermentation of Glucose only due to alkali acid reaction.
In test tube 3- the tube shows yellow slant and yellow butt which shows that glucose and either lactose or sucrose has been fermented.
Thus, test tube 2 (S. sonnei) is the correct answer.
new biology question pls help
Answer:
it should be natural selection but im not too sure...
Explanation:
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match the whorl fingerprint subclasses to their descriptions.
Answer:
A loop with a whorl: central pocket loop
Two loops with an s pattern: double loop
irregular shaped whorl: accidental loop
series of loops with a common center: plain loop
Explanation:
Ok I believe its: Loop with a whorl- plain, 2 loops with a S pattern- double loop, Series of loops with a common center- central pocket loop, and the Irregular-shaped whorl is a accidental loop. If I helped please mark brainliest!! :)
Which is the best example of a response to an external stimulus
Explanation:
2 Another example of external stimulus is temperature. When it is cold outside, your response is to get warm by putting on a jacket. If there is an external stimulus, there must also be an internal. An internal stimulus is a stimulus that comes from inside an organism.
3. Which of the following are NOT types of microorganisms?
a. Prions
b. Viruses
c. Bacteria
d. Earthworms
Answer:
d. Earthworms
Explanation:
Think about it: have you ever actually seen a prion, virus, or bacterium? No, because they can't be seen with the naked eye. Microorganism means that it's too small (hence the prefix micro-) to see.
Prions are little misfolded proteins. Viruses are nonliving things made up of a protein and nucleic acid. Bacteria are little prokaryotic microorganisms.Which resource is found in large quantities in China and is also imported into China from other countries?
tungsten
pearls
coal
timber
Answer:
Coal
Explanation:
China fulfills its demand for coal by purchasing it from regional neighbors. In 2017, its coal imports mainly came from Australia (79.9 million tons), Indonesia (35.2 million tons), Mongolia (33.5 million tons), and Russia (25.3 million tons).
Hope this helps
Have a great day!
Much of the Florida landscape is built upon limestone. Frequent rains seep down and erode the limestone as the rainwater travels to underground caverns or aquifers. Which of the following landforms could be created as a result of this process?
Answer:
potholes/ sinkholes. most likely sink holes. i dont have options
Explanation:
Which of the following is NOT a good way to manage a natural resource?
O A. walking instead of driving to nearby places
B. recycling glass, plastic, and paper
C. installing solar cells to power homes
D. taking long showers
Answer:
Taking long showers
Explanation:
It wastes more water than necessary
Answer:
D
Explanation:
A, B and C are all ways to help. D is not as it causes water and electricity to be wasted.
The codon, CAG, is being carried by a mRNA strand into the
cytoplasm. By using the Codon Chart, what amino acid will it code
for?
Some coral polyps within a coral reef obtain energy by
consuming plankton and small fish. Others rely on a
relationship with tiny algae. These algae live within
coral polyps. They use sunlight to make sugar for
energy. That energy is transferred to the coral polyp
Coral polyps are
Answer:
consumers
Explanation:
that's the answer
Answer:
consumer
Explanation:
I just did this test and this is definetly the answer.
HELP PLEASE!!!!
How would you describe the movement of the sun over 30 minutes?
Answer:
The Earth rotates from the west to east. The Sun does not rotate around the Earth, in Thirty minutes. the sun would appear to be in a different part of the sky, and that is because of the Earth's rotation.
Explanation:
Answer:
The sun is seen in a different part of the sky, but this is due to the rotation of the Earth. The intensity of light and heat changes as the Earth rotates. The speed of the sun changes the angle of the sky in 30 minutes, it is always moving from east to west, so in 30 minutes it will move further west, no matter what time you experiment.
I hope this helps!
The size of the iris and pupil can change size. If you walked from a bright room into a dark room, what would happen to the size of the iris and pupil?
Group of answer choices
the iris and pupil would not change size
the iris would get smaller, the pupil would get bigger.
the iris would get smaller, the pupil would get smaller
the iris would get bigger, the pupil would get smaller
the iris would get bigger, the pupil would get bigger
The correct answer is B. The iris would get smaller, the pupil would get bigger.
Explanation
The iris is the name by which the colored part of the eye is known, it is located between the cornea and the lens. In the central part of the iris, there is a round opening known as the pupil. The relationship between these two parts of the eye is very important to sight because between them they control the amount of light that enters the eye. This occurs when the eye is exposed to a high amount of light, the iris muscles make the pupil smaller and the iris larger, limiting light entry into the eye. When the eye is exposed to low amounts of light or darkness, the iris becomes smaller and the pupil enlarges, allowing more light to enter. According to the above, the correct answer is B. the iris would get smaller, the pupil would get bigger. Because it describes the behavior of the iris and the pupil when going from a bright room to a dark room.
Determine whether each activity impacts land resources in a positive or negative way. Drag each term to the correct
category.
desertification
Positive Impacts
Negative impacts
reforestation
laws and regulation
habitat restoration
erosion
urbanization
deforestation
Answer:
desertification - negative impacts
Reforestation - positive impacts
laws and regulation - positive/negative impacts
habitat restoration - positive impacts
erosion - negative impacts
Urbanization - negative impacts
deforestation - negative impacts
Explanation:
Desertification is a process in which productive lands become a dry, unproductive one as a result of humans or natural activities such as drought, deforestation, etc. It impacts land resources negatively in that land generally becomes unproductive and unsupportive to other lives.
Reforestation is a process of artificially creating forest where one has been removed or where none existed before. It involves the planting of trees and leads to the creation of new land resources such as habitats, water sheds, etc.
Laws and regulations can impact land resources either positively or negatively depending on the type of laws. Laws that promote land conservation positively impact land resources while those that promote the wanton use of lands negative impact land resources.
Habitat restoration refers to activities geared towards restoring habitats of organisms that have been degraded by human or natural activities. Habitat restoration positively impacts land resources as natural processes are directly impacted positively.
Erosion involves the removal of topmost layer of soils by running water or wind. It negatively impacts land resources by rendering land unproductive impacting the protective nature of soil on other resources such as watershed, etc.
Urbanization refers to the process of actively developing an area vis a vis the construction of more buildings and other infrastructures to make a place more urban. Land resources are negatively impacted in the process as most often requires the conversion of lands to non-forested uses.
Deforestation is the removal of forest layers for non-forest uses. It negatively impacts land resources such as habitat removal, lower biological diversity, protection of water sheds etc.
Answer:
Here
Explanation:
Help with the picture
ATP is formed from the breakdown of glucose in _____(1)_____, while glucose is formed from solar energy in _____(2)_____.
Answer:
(1) cellular respiration, (2) photosynthesis
Explanation:
Insulin is a hormone that travels through the blood and helps regulate blood sugar levels. Which best describes how insulin travels in the blood?
in the plasma
in the platelets
attached to the white blood cells
attached to the red blood cells
Answer:
A:in the plasma
Explanation:
Insulin regulates blood sugar levels and it travels in the plasma. Therefore option A is correct.
What is insulin?Insulin is a hormone that is released by β-cells of the pancreas. It controls the amount of glucose in our bodies. It converts glucose into glycogen and then this glycogen is stored in the liver, and whenever the glucose level reduces in the blood, then this stored glycogen is converted into glucose. It also helps in breaking fat and protein for energy.
Insulin is a very important hormone for the regulation of glucose in the blood. A deficiency of insulin occurs when the immune system attacks islets and it causes diabetes, in this disease blood sugar level increases
.
Insulin flows in the blood through plasma. Therefore, option A is correct.
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g What basic characteristics do we generally expect to find in all things that qualify as being alive? Question 1 options: 1) an ability to: reason, make polymers and repair damage. 2) an ability to: reproduce, respond to stimuli and repair damage. 3) an ability to: avoid pain, move from one place to another and evolve. 4) an ability to: capture energy from sun light, move from one place to another and reshape its environment. 5) an ability to be more ordered than their surroundings, respond to stimuli, and capture energy from sunlight.
Answer:
Number 2: an ability to: reproduce, respond to stimuli and repair damage.
Explanation:
Some basic characteristics of all living things in general which they all have in common include:
The ability to reproduce (reproduction). All living things reproduce...
Ability to respond to stimuli (irritability)
Ability to repair damage: this is involved with cells in the organisms and to stay alive all organismsin general areade up of cells which has the ability to be repaired if damaged.
18. Some groups of organisms work together to stay safe or to take down prey. What do we
call this?
Answer: Mutualistic.
Explanation:
2.In what way is the plant’s vascular system like ours?
3.How have scientist classified all plants?
4.Give 2 examples of non-vascular plants. (This will take a little extra research.)
5.List the 2 major vascular tissues of a plant and tell what they do.
1.
2.
6.List the reactants and products of photosynthesis?
Reactants:
Products:
7.Both plant and animal cells have organelles. What are organelles?
8.Which organelle is responsible for photosynthesis?
9.Why is it incorrect to say plants “breathe” Carbon dioxide (CO2)?
10.Where would you expect to find plant cell with a high number of chloroplast?
11.What are the stomata and why are they important to the plant?
12.What is the job of the guard cells?
13.The venus fly trap or the pitcher plant are still considered plants. Why do they “eat” insects?
14 Your friend thinks mistletoe is normal plant. How could you explain why it is NOT considered a “normal” plant?
Answer:
2.The human circular system does pretty much the
same thing as a plant but the plant can also reproduce oxygen. The
human needs air so does a plant to live and make more air. The
human needs food so does a plant to stay healthy. The human needs
to drink water to live too so does the plant to stay alive
otherwise it will rot and fall apart.
Explanation:
Recessive sex-linked traits such as color blindness appear more frequently in
males because
A. males inherit only one sex chromosome.
B. males inherit two copies of every sex-linked allele.
C. sex-linked alleles are carried only on Y chromosomes.
D. males inherit only one sex-linked allele.
Where is new ocean floor formed?
Answer: Mid ocean ridges
Explanation:
Earth.
Answer:
Hey! New ocean floor is formed at mid-ocean ridges.
Explanation:
75 POINTS!!! One reason male peacocks spread their tail feathers is to attract a mate. How does choosing a male with a bright, full tail increase a peahen’s chance of producing healthy peachicks?
Answer:
They have greater health conditions
Explanation:
if they are bright, they are healthy
Answer:
Typically, if a peacock has a bright tail with many feathers and eyespots, a female will choose him. These tail features indicate that the peacock may be healthier than other males and, therefore, produce healthier peachicks.
Explanation:
This is the sample response.
An atom is defined as?
Answer:
the smallest particle of a chemical element that can exist.
The smallest and basic subunit of a matter is called as Atom.
What do you mean by atom ?Atoms are the smallest and basic units of matter which has three subatomic particles such as positively charged protons, neutral Neutrons form nucleus.
A negatively charged electron which surround the nucleus of the atom.
In nucleus equal number of protons and neutrons, atomic number is the number of protons and atomic mass is made of the sum of protons and neutrons.
The nucleus does not change during chemical reactions, only in nuclear reactions it will change.
Smaller electrons orbit the nucleus participate in chemical reactions .
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The inner protective layer of the viral genetic information
Answer:
the capsid is the inner protective layer of the viral genetic information(rna)
Part of an organism, possibly one or more bones, is referred to as the organism's __. will give brainlist
Answer:
Structure
Explanation:
Match the structural formula to the chemical formula for this substance.
CH2Cl2
C2H6O
C2H6O2
H2CO3
Answer:C2H6)
Explanation:
Answer:
C2H6O
Explanation:
