landscape alterations like cutting down trees
Answer:
the answer is pollution hope it helps
Which Enzyme has an optimal pH that is Acidic?
A. Pepsin
B. Salivary amylase
C. Arginase
Answer:
a. pepsin
Explanation:
it has a 1 to 2 level which is acidic because anything lower than 7 is acidic
Answer:
A. Pepsin
Explanation:
The enzyme pepsin breaks down proteins in the acidic conditions of the stomach. Pepsin has an optimum of pH 2.5 and a working range of between pH 1-4.
Black bears in the north hibernate mostly due to the scarcity of food during the winter months.
Prior to hibernation bears are foraging for food. They eat fruit, nuts, acorns, insects, and certain leaves and plants. They catch occasional small animals, but lack agility to catch most adult prey. In the months before hibernation black bears can gain up to forty pounds of fat per week.
9. What types of food molecules is the bear consuming (give at least two)?
Answer:
Food having high fat.
Explanation:
The bear eat food products having high fats in order to store it in the body. The food which have large amount of protein and fats are stored in the body and helps in gaining of weight up to forty pounds of fats per week. During hibernation period, bear used this fats for the release of energy used for its survival. Fats produce huge amount of energy when they are broken down so this fats helps in hibernation of bear.
1. The table below shows the distance of the cat and the mouse from the cat's starting point at given times. After 1 second how far is the mouse
t
0.4
0.5
0.6
0.7
0.8
0.9
Dmouse
10.2
11.5
12.8
14.1
15.4
16.7
18
19.3
Dcat
6.8
8.5
10.2
11.9
13.6
15.3
17
1
18.7
1.1
1.2
1.3
1.4
O A 17 feet
O B. 18 feet
O c 2 feet
OD 3 feet
Answer:3 feet
Explanation:
PLSSSS ANSWER I WILL GIVE BRAINLIEST
Jorge is testing the effect of lead on child development. Based on his observations, he finds that the longer the children are exposed to lead-based paint, the higher the chance becomes that the children may develop behavioral problems. He has done repeated experiments, and his results are similar to the results of many other scientists.
Why is this scenario considered a theory rather than a hypothesis?
It is a testable scenario.
It is based on prior knowledge.
It is a well-tested explanation.
It is a factual statement.
Answer:
(C) it is a well tested explanation
Explanation:
Got it correct on the test.
why is the elastic rebound theory compared to a rubber band
Match each of the following terms with its description. 1. Arteries a) Tiny, thin-walled blood vessels that connect the smaller arteries to venules 3. Veins 4. Venules 5. Arterioles 2. Capillaries b) Thin-walled blood vessels that are less elastic than arteries c) Thick-walled, muscular, flexible tubes that carry oxygenated blood away from the heart to the arterioles d) Small arteries that deliver blood to capillaries e) Small vessels that connect the capillaries to the veins
Answer:
Arterioles - D
Arteries - C
Veins - B
Capillaries - A
Venules - E
Explanation:
This question is describing the blood vessels that make up the circulatory system. The blood vessels with their accurate description are as follows:
- ARTERIES: Arteries are the most elastic and thick-walled blood vessels that functions to carry blood away from the heart using great pressure. Arteries are muscular, flexible tubes that carry oxygenated blood away from the heart to the arterioles.
- VEINS: Veins are blood vessels that carry deoxygenated blood back to the heart. Veins have a thin wall and are less elastic in comparison with arteries.
- CAPILLARIES: Capillaries are smallest blood vessels designated to connect the smaller arteries or arterioles to venules. They are also thin-walled.
- ARTERIOLES: Arterioles are small arteries or branches of an artery that connects the arteries to capillaries. Arterioles deliver blood to capillaries.
- VENULES: Venules are tiny veins or branches of a vein that connects the veins to the capillaries. Venules deliver blood from capillaries to veins.
D starch
Blood glucose levels can become high following the digestion of carbohydrates.
Which of the following can be digested to release glucose?
A both fructose and sucrose
B both fructose and galactose
C both galactose and lactose
D both lactose and sucrose
Answer:
The answer is A fructose and sucrose
Explanation:
brainliest plzzzzzzzzzz
What would happen if an electric fish was always negatively charged instead?
quick
Answer:
This creature’s powerful jolts not only act like a radar system but also can trick its prey into revealing their location
Explanation:
Scientists in Brazil have developed specific fertilizers and special breeds of soybeans and corn so crops can grow on large areas of tropical lands. This is valuable because farmers can help to feed the growing human population and strengthen the economy. However, trade-offs must be considered because farming on tropical lands can also A add helpful microorganisms to the soil B remove oxygen from the atmosphere C reduce populations of native species D reduce mutations and disease in wildlife populations
Answer:
C reduce populations of native species
Explanation:
The overexploitation of the land by farming practices represents one of the most important challenges that face wild populations and threatened species, representing a concern to biodiversity conservation. Farming practices can destroy the natural structure of the soil, reducing diversity by killing small animals (e.g., insects), bacteria, and fungi that live in the substrate. Moreover, runoff may also carry herbicides and pesticides used in monocultures that can damage aquatic ecosystems, disrupting and killing aquatic wildlife and polluting water sources. Some ecological farming methods that help to reduce biodiversity loss include, among others, the use of natural fertilizers, diversification of crops, biological pest control, etc.
Why is CRISPR important?
CRISPR fixes genetic code typos or mistakes
to help cure diseases
or
give the person desired genes or traits
The dashed lines between the two bases represents.
Answer:
Weak hydrogen bonds
Explanation: Hydrogen bonds between the bases hold the two strands together.
Please help, this determines how much work I do, allele chart.
A ___(J)_____ is a group of individuals of the same species that mate and produce offspring. In each generation, new genotypes occur that express themselves as specific individual ____(K)___. Any factor that affects the ____(L)___ of a population can change the frequency of ___(M)___, resulting in evolution over time. Through the processes of variation and ___(N)___, new species can arise. A ___(P)___ is a population of physically similar, interbreeding organisms that do not interbred with other such groups.
Answer:
(J) population; (K) phenotypes; (L) gene pool; (M) alleles; (N) natural selection; (P) species
Explanation:
A population is a group of organisms living in a particular geographical area that is capable of interbreeding, while a species is a group of populations that are capable of interbreeding and producing fertile progeny. In a population, genetic variation can enter from one of these sources: 1-recombination (i.e., the exchange of DNA between homologous chromosomes during meiosis), 2-mutations (i.e., genetic alterations resulting from DNA replication), 3-migration of individuals between populations, or 4-lateral or horizontal gene transfer (i.e., the acquisition of genetic material between individuals without direct vertical inheritance, it is extremely rare in higher organisms). Alleles are gene variants which are may be created, for example, through mutation, while the gene pool refers to the total genetic diversity (i.e., alleles) that exists within a population. Finally, natural selection refers to the evolutionary process of differential reproduction and survival through which populations adapt and change.
The diagram below shows part of an ocean food web.
y
sea otter
sea urchin
parrotfish
seaweed
If the number of sea urchins increased which would be the most likely effect on the food
web?
A. a decrease in the
number of sea otters
B. a decrease in the
amount of seaweed
C. a decrease in the
amount of sunlight
D. a decrease in the
number of parrotfish
What evidence does not support the evolution of chloroplasts and mitochondria from prokaryotic cells?
A. Fossilized remains of archaebacteria
B. Double membranes of the organelles
C. Similar methods of reproduction
D. Presence of circular DNA
Answer:
A. Fossilized remains of archaebacteria
Explanation:
One example of evidence that does not support the theory is that Mitochondria and chloroplasts are much larger than prokaryotic cells.
Which of the following accurately describes covalent bonds?
A. Covalent bonds are formed when atoms share one or more
electrons.
B. Covalent bonds are formed when atoms transfer one or more
protons.
C. Covalent bonds are formed when atoms share one or more
protons.
D. Covalent bonds are formed when atoms transfer one or more
electrons.
Answer:
A
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
Answer: The answer is A Covalent bonds are formed when atoms share one or more electrons
Explanation:
Which list identifies the order of events that formed a volcanic crater?
A) CBDA
B) BACD
C) CADB
D) DBAC
Based on the given image, the order of events that formed a volcanic crater is CADB. Thus the correct option is C.
What is a volcanic crater?A nearly circular hole in the ground produced on by volcanic eruptions is known as a volcanic crater. It is a valley that typically stands just above the eruption where volcanic debris is emitted, and it has the shape of a bowl or funnel.
During volcanoes, craters' dimensions and shapes could alter. A volcanic crater, also known as a caldera, is a sizable depression created when a natural disaster occurs and then collapses.
Underneath the surface of the Earth, the molten rock is known as magma. Less dense than normal lava is being pushed upward to the surface by intense pressure. When magma seeps through layers of preexisting rock, it forms another structure.
Therefore, option C is appropriate.
Learn more about the volcanic crater, here:
https://brainly.com/question/1177737
#SPJ2
4. What is the layer of gas called which is found
Stistosphere ?
Answer:
ozone layer
Explanation:
The infamous ozone layer is found within the stratosphere. Ozone molecules in this layer absorb high-energy ultraviolet (UV) light from the Sun, converting the UV energy into heat.
Hope this helps!
3. Which part of a flower devel-
ops into a fruit? into a seed?
Answer: ovary
Explanation:Once pollen gets to the ovary within the flower, the ovary develops into a fruit. The ovules inside the ovary develop into seeds inside of this fruit.
Where in the United states in the greatest risk of deserification?
Answer:
New Mexico, Texas and on the Navajo Indian reservation in New Mexico and Arizona
Which kind of investigations are meant to provide large amounts of information about a wide range of variables?
Answer:
Comparative investigations
Explanation:
Answer:
Comparitive investigations
What characteristics are important for health science professionals?
O empathy
O diligence
O cultural awareness
O all of the above
Answer:
A. Empathy
Explanation:
i hope it helps:)
Pls, help me with this question
the answer should be mRNA, hope this helps!
what are Okazaki fragments
Answer:
Okazaki fragments are short sequence of DNA nucleotides.
Which statement best describes the starch content of two leaves taken from the same plant shown in the
chart below?
leaf A
taken from plant in
the dark for 48 hours
leaf B
taken from plant in
bright light for 48 hours
(1) Neither leaf contains starch.
(2) Both leaves contain the same amount of starch.
(3) Leaf A contains more starch than leaf B.
(4) Leaf B contains more starch than leaf A.
The statement best describes the starch content of two leaves taken from the same plant shown in the chart is given: (4) Leaf B contains more starch than leaf A.
Dark reactionplants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose.It takes place in the stroma of the chloroplast.Light reactionsThe energy is then temporarily transferred to two molecules, ATP and NADPHThe light reaction is important to produce ATP and NADPH which is used as fuel for starch production.Thus, The statement best describes the starch content of two leaves taken from the same plant shown in the chart is given: (4) Leaf B contains more starch than leaf A.
Learn more:
https://brainly.com/question/18828260
A tall pea plant is crossed with a short pea plant. All of the offspring that are produced are tall. Two of these tall offspring
are crossed. The Punnett square for this cross is shown below.
Cross of heterozygous plants
Parent 1
Tt
Parent
Tt
t
T
T TT
Tt
t Tt
tt
What can be concluded from this cross?
Tall pea plants can only produce tall offspring.
B Tall pea plants can only produce short offspring.
Tall pea plants can create tall, medium and even short offspring,
Tall pea plants can carry the short trait and create some tall and short offspring.
Answer:
jdjdnsnsnsksksnsnsns mdmdndnsnsnsns smmsmsms
Answer:
Tall pea plants can carry the short trait and create some tall and short offspring.
Explanation:
There is no medium parent so no. There are small t's so no. As a result, it is short and tall.
Which of the following best describes the function of the human nervous system? A. The nervous system transports oxygen and nutrients to the body's tissues. B. The nervous system collects and responds to information about the internal and external environment. C. The nervous system protects the body against infection and helps regulate body temperature. D. The nervous system protects internal organs and assists with movement.
The _____ of a species is usually the result of predation, competition, and other types of interaction between species.
Answer: Realized Niche
Explanation:
Realized niche is also referred to as Post Competitive niche and can be defined as a thriving environmental area created by a group of organisms to survive from an exsisting Faundermental niche where interactions (predation, competition, light, water,food) with other organisms were limited and competed for.
For example. In a tree( Faundermental niche) which houses different species of birds, In order to survive, each specie of the birds will create a realized niche so as to survive from predation, competition, light etc which the whole tree provides.
Which discovery best supports the hypothesis that evolution of the lactase-persistence trait was driven by dairying, the use of milk as a source of adult nutrition in pastoralist cultures
Answer:
The discovery that; The age of pots ( ancient ) that was used to hold milk in ancient times is as old as the Lactase-persistence mutations
Explanation:
The discovery that best supports the hypothesis is given in the question ( The hypothesis about he evolution of the lactase-persistence trait was driven by dairying ) is that The age of pots ( ancient ) that was used to hold milk in ancient times is as old as the Lactase-persistence mutations
"Draw a pedigree for hitchhiker’s thumb. Your pedigree should cover at least two generations and include both dominant and recessive forms of the trait. Label the pedigree with genotypes, using the letter H to represent the dominant allele for the trait and the letter h to represent the recessive allele."
I'm confused on the part about having two generations. How do I set up the pedigree?
Answer and Explanation:
First, you need to know how to interpret a pedigree representation.
Family members→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
Trait/Phenotype→ Healthy/normal/not affected individuals are represented with empty figures
→ Affected/mutated individuals are represented with solid black figures
Generations→ Each file is represented with a roman number, indicating the Generation.
Now, what we need to do is to draw a pedigree for a hitchhiker’s thumb. We know that this is an autosomal dominant trait, which we will represent with an H. No hitchhiker's thumb is the recessive trait, and it will be represented with an h.
Our pedigree should cover at least two generations and include both dominant and recessive forms of the trait.
We can cross two heterozygous individuals, Hh, who are the first generation in our pedigree. This cross will result in a woman and a man with No hitchhiker's thumb, another man with a hitchhiker's thumb, HH, and another woman with a hitchhiker's thumb, Hh. These individuals will represent the second generation in the pedigree. Finally, we can cross the man with No hitchhiker's thumb, hh, with a woman who does not have a hitchhiker's thumb either, hh. And the woman with a hitchhiker's thumb, Hh, with a man with a hitchhiker's thumb, HH. The result of these crosses will be the third generation.The representation would be like following,
I → First-generation: First cross
Man Hh (1) Woman Hh (2)II → Second-Generation: F1 and second crosses
Man hh (3) x Woman hh (4)Woman hh (5)Man HH (6)Woman Hh (7) x Man HH (8)III → Third-Generation:
A boy (9) and a girl (10) hhA girl (11) HHYou will find this pedigree in the attached files. In this example, we included three generations. The first one belongs to the grandparents, the second one to parents, aunts/uncles, and the third one to grandchildren.
If you draw another pedigree, remember to include
the figures representing males and females, color and H/h representing the phenotype, Roman numbers representing the generations, and optional, numbers naming each member.