Answer:
The load distance is 4.9 cm
Explanation:
Given;
Effort applied to the lever, E = 120 N
Load overcame by the effort, L = 50 kg = 50 x 9.8 = 490 N
distance of the effort from the fulcrum, e = 20 cm
let the distance of the load from the fulcrum = d
The following simple set-up is used to illustrate this lever;
-----------------------------Δ-------------------------------
↓ 20cm d ↓
120 N 490 N
Lever operates on the principle of moment, so take moment about the pivot (fulcrum);
490(d) = 120(20)
d = (120 x 20) / (490)
d = 4.9 cm
Therefore, the load distance is 4.9 cm
An invasive species of Asian carp was introduced to the Mississippi River and have thrived. It threatens to eliminate many native species of fish. Which of these could be a contributing reason why?
A
The invasive species of fish lay many more eggs than the native species.
B
The invasive species of fish eat a greater variety of foods than native fish, destroying entire ecosystems.
C
The invasive species can survive in more extreme temperatures and water with a lower oxygen concentration.
D
All of these can be contributing reasons.
Answer:
D, they are all contributing reasons.
Plant and animal cells are classified as what type of cell?
A. eukaryotic
B. prokaryotic
definicion de cromatidas
Help ASAP!!!
Which describes one effect of the sea level change that occurred during the last ice age?
Answer:
1
Explanation:
Mostly because it was the BIGGEST thing that really happend during said event. The others happend yes but not as majorly as number 1.
The anticancer drug Taxol was originally extracted from the bark of the Pacific yew tree. This drug is an example of a type of ecosystem service known as
Answer:
Provisions
Explanation:
It's most likely Provisions because Provisions is an example of a type of ecosystem service.
stions
Describe what a muscle fiber looks like and what it
can do.
Answer:
Smooth muscle fibers have an oblong shape, much like a football. They’re also thousands of times shorter than skeletal muscle fibers. Similar to skeletal muscles, cardiac muscles are striated. They’re only found in the heart. Cardiac muscle fibers have some unique features.
Explanation:
Can someone help me pls
Answer:
respiratory and circulatory digestive and excretorydigestive and circulatory nervous and muscularHow are hydrogen bonds related to polarity?
Answer:
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions
Explanation:
Explain the larger impact of fish farming on the environment.
Explanation:
The most common negative environmental impacts that have been associated with aquaculture include: waters eutrophication, water quality, alteration or destruction of natural habitats; introduction and transmission of aquatic animal diseases (FAO, 2006a).
Which is a feature of DNA that could allow you to distinguish between a DNA sequence that is protein coding and a DNA sequence that is not
Answer:
Protein-coding sequences are single stranded; others sequences are double stranded.
Why do you think leaves have stomata on their underside only? Explain.
Why does the kidney need 1 million nephrons instead of one whole unit to carry out its function
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.
Refer to the following information to answer the questions below. A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was 6 feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes
Answer:
Considering the whole progeny ⇒ the probability of having a girl heterozygous for both genes is 4/16 = 1/4 Considering only girls ⇒ the probability of having a girl heterozygous for both genes is 4/8 = 1/2Considering only dwarf girls with normal color vision ⇒ the probability of having a girl heterozygous for both genes is 4/4 = 1Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
20 POINTS!
Its for a test!
Answer quick please
The two closely related are the golden jackal and the gray wolf. Hope this helps have a great day!
Please help me answer the following question.
Answer:
1a and 4b equals -59
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If you conducted the analysis portion of Experiment 2, you calculated
the rate at which the percentage of fish with a complete pelvis
decreased in that ancient lake. Do you think the same rate of change
would apply to modern fish populations?
Answer:
ibk- xuqe- wup
only show type person come
helppppppppppppp im stuck
Answer:
Ecosystem
Explanation:
Ecosystems are the largest organizational level found in one coral reef
Which of the following prefixes represents the smallest value?
A. Centi
B. Deca
C. Deci
D. Mega
Answer:
centi
hope this helps
have a good day :)
Explanation:
What stage of mitosis is depicted by the image above?
O metaphase
telophase
O prophase
O anaphase
cytokinesis
Answer:
telophase
Explanation:
because the chromatids are pulled to the opposite sides
List the three items that must be included in the definition of mass extinction
Of 1217 offspring produced in a cross of one variety of plants, 919 had violet flowers and 298 had pink flowers. What is the trait in this cross?
Answer:
The trait is the color of the flowers.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
What is the most commonly seen trait in human and/or animals?
Answer:
language skills
Explanation:
What is the molecule in this image?
amino
acid
amino
acid
A. A carbohydrate
B. A nucleic acid
C. A protein
D. A lipid
Answer:
C
Explanation:
because it is a polymer of amino acid so it will be a protein
hope it make sense:)
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.
¿Cómo defines a una Célula Haploide?
Answer:
La mitad de cromosomas.
Explicación:
Las células haploides se refieren a aquellas células que tienen la mitad de cromosomas. Estas células haploides se forman debido a la división celular de la meiosis. En la división celular de la meiosis, una célula madre se divide en cuatro células hijas que tienen la mitad de cromosomas. Estas células haploides están presentes en los espermatozoides de los gametos masculinos y femeninos, que se fusionaron formando células diploides que tienen el doble de cromosomas. El cigoto formado debido a la fusión de espermatozoides y óvulos son de naturaleza diploide.
What would be the complimentary side of this DNA molecule?
TAG CCA TTG CGT GCC TGG CAAT
An object at ___ stays at ____ or an object that is ____ at a _____ in a straight _____ keeps moving at that _____ unless another _______ acts on it.
Answer:
an object at rest stays at rest or an object that is moving at a velocity in a straight line keeps moving at that velocity unless another force acts on it
Not really sure about this answer so can someone give me the correct one
True or False; Carbohydrates and Lipids are organic, contain CHO and are both forms of energy