Answer:
I think it's
A mass extinction occurs when many species go extinct in a relatively short period of time.
Explanation:
Mass extinction is usually defined as a loss of about three-quarters of all species in existence across the entire Earth over a “short” geological period of time. Hence, I think the answer is correct.
Answer:
The correct answer is Mass
Which of the following could be present in a prokaryotic cell? *
Ribosomes
Cell Wall
Cell Membrane
Nucleus
Membrane-Bound Organelles
DNA
Answer:
they actually do not have a nucleas
Wave amplitude depends on
1. wavelength
2. wave speed.
3. wave energy.
4. wave frequency.
5. wave energy of the original disturbance.
Help please!!
Use Darwin's theory of Natural Selection to explain the process by which the four-legged land animal, A, may have evolved, over about 20 million years, from the fish-like creature, C, in the swampy conditions of the time.
Answer:
Due to environmental conditions.
Explanation:
With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.
Can someone help me if this is correct
Answer:
It's probably correct.
HELP ME PLEASEE!!! I WILL NAME YOU BRAINLIEST!!!
based on the graph below, from 1900 to 2000, humas have been experiencing what type of population growth?
A) Stagant
B) Logistic
C) Continuous
D) Exponential
Answer:
Exponential
Explanation:
reference the shape of the graph
WHY SOME FAMILY MEMBERS LOOK VERY SIMILAR WHILE OTHERS LOOK VERY DIFFERENT? pleaseee :c
I actually question that too, my dad was really tall, so is my mom and my mom has straight hair, but I’m short with wavy hair, but my mom say it’s probably from my grandma who has wavy hair.
Can someone plz help me
Answer:
Circulatory system and Respiratory system
Los elefantes marinos del norte tienen poca variabilidad genética, probablemente, por un proceso que le hicieron pasar los hombres en la década de 1890. La caza hizo disminuir el censo poblacional hasta tan sólo 20 individuos a finales del siglo XIX. Desde entonces, su población ha «rebotado» hasta más de 30 000, pero sus genes todavía llevan las señales de sus aquellas generaciones su variabilidad genética es mucho menor que la de una población de elefantes marinos del sur que no sufrió una caza tan intensa. Este proceso puede denominarse como:
Seleccione una:
Cuello de botella
Especiación
Selección natural
Efecto fundadorLos elefantes marinos del norte tienen poca variabilidad genética, probablemente, por un proceso que le hicieron pasar los hombres en la década de 1890. La caza hizo disminuir el censo poblacional hasta tan sólo 20 individuos a finales del siglo XIX. Desde entonces, su población ha «rebotado» hasta más de 30 000, pero sus genes todavía llevan las señales de sus aquellas generaciones su variabilidad genética es mucho menor que la de una población de elefantes marinos del sur que no sufrió una caza tan intensa. Este proceso puede denominarse como:
Seleccione una:
Cuello de botella
Especiación
Selección natural
Efecto fundador
Answer:
elefantes marinos mmmmmmmmmm
money feed on both plants and animals therefore man is said to be a/an
man is said to be an animal
Interferons Interferons reduce macrophage chemotaxis to the infection. interfere with viral replication. prevent viruses from entering a cell. bind to viruses and destroy them. prevent viruses from leaving a cell.
Answer:
interfere with viral replication
Explanation:
Interferons (IFNs) are proteinous molecules, which are part of the innate immune system of our body. Interferons are produced in response to viral infections and they often specialize in preventing the virus pathogen from replicating or multiplying in the host cell.
As their name implies, INTERFERONS interfere with the replication of viral pathogens, hence, preventing the virus from further invading the host cell. This is done at the innate immunity level.
Un organismo que solo come plantas es un (a)
Answer:
Herbívoros
Explanation:
Son animales que se alimentan exclusivamente de plantas, pastos, hierbas y vegetales en general. Hay muchos herbívoros que comen huevos y a veces otras proteínas provenientes de animales. Ejemplos de herbívoros: caballo.
Herbivores: They are animals that eat plants,grasses,herbs and vegetables,.Examples of herbivores: cows, deer, or rabbits.
How can you check the accuracy of the results of your experiment?
1. by testing different variables
2. by assuming your results are correct
3. by completing a different experiment
4.by repeating your experiment
Answer:
I think either 1 or 4 but I think 1
Answer:
Explanation:
4 is the answer
How do the nervous system and skeletomuscular system interact?
how many sperm cells are formed from an original cell in a drosophila fruit fly at the conclusion of meiosis.
Answer:
Four sperm cells
Explanation:
Pls answer this question 18
Answer: i belive a. mark brainlyest if corest plz ;P
Explanation:
do not have any particular arrangement and there are very, very weak forces between them. So, the particles in a gas can easily move around and fill the shape of the container they are in, meaning they have no fixed shape.
PLZ HELP!
What did the Fish and Wildlife Service (FWS) do to bring back black-footed ferrets from extinction?
The captive breeding program was implemented too late to save the black-footed ferret.
The FWS moved mating pairs from the Wyoming population to over 8 western states and Mexico to begin new colonies.
The FWS use a captive breeding program to start populations in 8 states.
The FWS monitored a Wyoming population and captured enough individuals to start new populations.
Answer:
The FWS use a captive breeding program to start populations in 8 states.
Explanation:
this is correct i got it right
In what position should the stage be located when you first begin to focus in on an object? Why would you put it in this position?
What is the resulting mRNA? 1.AUU-GAG-CAU-CAA-AAU-CCG 2.UAA-CUC-GUA-GUU-UUA-GGC 3.TAA-CTC-GTA-GTT-TTA-GGO
4.None of the above
Answer: 3
Explanation:
Just put 3
6. ¿Cuál de las siguientes moléculas está formada por
glicerol y ácidos grasos?
Azúcares
Almidones
Lípidos
O ácidos nucleicos
Answer:
Lípidos
Explanation:
In humans, colorblindness is a recessive, sex-linked trait. What is the probability
that the children of a woman heterozygous for colorblindness and a man with
normal color vision will be colorblind?
Explanation:
Taking Xx as heterozygous and XX for normal
Woman =Xx Man =XX
all possible outcomes are XX, XX, XX and Xx
there is 0 probability of having a colorblind child
(But there is a 25 % chance that the child may be a carrier like its mother)
Examine the words and/or phrases below and determine the relationship
among the majority of words/phrases.
Choose the option that does not fit the pattern.
fire
overgrazing of lands
ground cover alteration
drought
what are three types of muscle tissues in the human body and where are they located
cardiac, smooth, and skeletal.
Which type of cell has free-floating DNA?
A. eukaryotic
B. prokaryotic
Answer:
Prokaryotic cells have free floating DNA
Answer:
B. prokaryotic
Explanation:
The prokaryotic cells has free-floating DNA. The option (B) is the answer.
as the population size gets
The growth rate tends to
closer to the carrying capacity.
Answer:
As population size approaches the carrying capacity of the environment, the intensity of density-dependent factors increases. For example, competition for resources, predation, and rates of infection increase with population density and can eventually limit population size.
Explanation:
Hope this helps! ^_^
10. Which of the following is a critical factor in species survival?
a. Age structure
b. Genetic diversity
C. Fertility
d. Hybrids
^please answer
HELP ME WITH THIS MITOSIS DIAGRAM PLEAASE
Answer: A/#1= Prophase B/#2= Metaphase C/#3= Anaphase D/#4= Telaphase
Explanation:
Which item creates more than 50 decibels of sound?
Do new trees provide the same resources for animals in the forest as adult trees do?
Answer:Yes, trees release oxygen and some produce food for the animals weather there young or old
Explanation:
The total acreage destroyed by the gypsy moth is in the
hundreds.
thousands.
millions.
billions.
Answer:
millions
Explanation:
3 ideas that an individual person can do to help. With air pollution?
Answer:
Reduce the number of trips you take in your car. Reduce or eliminate fireplace and wood stove use. Avoid burning leaves, trash, and other materials. Avoid using gas-powered lawn and garden equipment.
Explanation:
Ima different breed