Answer:
It is when humans chose beneficial traits in each generation of a species.
Explanation:
Artificial selection is the process in which humans use animal and plant breeding to develop specific traits by choosing a particular animal or plant males and females which sexually reproduce and have offspring together. This selection is done in order to achieve a plants or animals with desired physical characteristics. This selection will leads to the production of best traits organisms for the future.
A track athlete throws a 2kg discus into a field with a velocity of 21m/s. What is the momentum of the discus?
Answer:
Given :
Momentum of disc = 42 kg m/s
Velocity of disc = 21 m/s
To Find :
Mass of the disc.
Solution :
❖ Momentum is defined as the product of mass and it's velocity..
Mathematically, p = m × v
p denotes momentum
m denotes mass
v denoted velocity
➛ It is a vector quantity having both magnitude as well as direction.
➛ It can be positive, negative or zero.
➛ SI unit : kg m/s or N s
By substituting the given values;
➙ p = m × v
➙ 42 = m × 21
➙ m = 42/21
➙ m = 2 kg
∴ Mass of the object is 2 kg.
Knowledge BoosteR :
As per newton's second law of motion, force is measured as the rate of change of linear momentum.
Formula : F = dp / dt
What would be made in DNA replication using the following DNA strand – ACT GGA
A. ACT GGA
b. TGA CCT
c. UGA CCU
d. UGU CCA
How do hypothalamus and pituitary glands work together?
Answer:
The hypothalamus is responsible for maintaining the body's internal balance (homeostasis) by stimulating or inhibiting major bodily functions such as the heart rate and blood pressure, body temperature, fluid and electrolyte balance, appetite and body weight, sleep cycle and function of the gastrointestinal track. The hypothalamus is also considered the master regulator of the endocrine system; Regulatory hormones secreted by the hypothalamus are transported by the hypophyseal-portal system to the anterior and posterior pituitary, prompting the release of secondary hormones that can affect various organ functions.
Explanation:
Horticulture 20 points
What describes how commodity check-off organizations operate?
Answer: its a
Explanation:
en que conciste la funcion de relacion?
Which of the following organisms eat spiders in this ecosystem? Check all that apply:
snakes
toads
insectivorous birds
herbivorous insects
predaceous insects
In which type of plant tissue does photosynthesis take place?
(A) dermal
(B) vascular
(C) nervous
(D) ground
Answer:
(B) vascular
Explanation: I think its b but if im wrong plz dont get mad at me.
3. How are frog eyes different from human eyes?
Answer:
Most frogs see well only at a distance, but they have excellent night vision and are very sensitive to movement.This peripheral vision helps them spot predators and prey. Humans and other mammals focus images by changing the shape of the lens. Like a camera lens, frog eyes focus by moving the lens back and forth.
Cellular respiration occurs in the chloroplasts of prokaryotic cells but the mitochondria of eukaryotic cells.
True or False?
Which of the following processes produce metamorphic rocks?
Why does the heart muscle need glucose and oxygen?
To synthesize spores by the process of mitosis
To synthesize ATP using the process of cellular respiration
To synthesize water during the process of transpiration
To synthesize sunlight during the process of photosynthesis
The link is a virus do not click
Pls help! What field studies all organisms that have existed, where they came from, and how they are related?
When is the MOST energy transferred from the Sun to water in the water cycle?
Select one:
a. during collection
b. during evaporation
c. during condensation
d. during precipitation
Answer:
During Evaporation.
Option B
photosynethis organisms turn into an organic molecule in the form of what
Answer:
glucose
Explanation:
Photosynthetic organisms like green plants use CO₂ and H₂O in the presence of sunlight and convert it into an organic molecule, which is a carbohydrate ( glucose).
Seed drill is used for
Positioning them in the soil and burying them to a specific depth
Answer:
seed drill is used for to sow the seeds at equal distances and proper depth, ensuring they get covered with soil and are saved from being eaten by birds.
PLEASE MARK ME AS BRAINLIESTI don’t understand it, if someone can explain maybe what I have to do and put into each Column or give me the answer either way would help a lot. Thank you.
Answer:
First, describe each type of evidence (eg. Molecular biology is comparing DNA sequences to determine common ancestry). Then provide examples of how those pieces of evidence support the theory of evolution. For example, for one of the comparative anatomy examples, you could say that organisms that contain similar structures most likely diverged from a common ancestor.
I hope this gets you on the right track.
Explanation:
Predicting Moon Phases
Predict what the Moon looks like from Earth when it is the different positions by drawing a line from the Top View box to one of
the light shapes
Question 2 pls answer :P. this is 20 point's
Select the correct answer.
In a car accident investigation, forensic Investigators could not locate the antemortem dental record of the victim for comparative study.
What should they do to Increase the probability of locating the antemortem record?
A. perform comparative dental identification
B. perform dental profiling of the victim
C. look for other evidence
D. scan the global databases
Reset Next
Answer:
the answer is b
Explanation:
What population distribution pattern works best when doing random sampling? Why.
A. Clump
B. Random
C. Uniform
Answer:
Dispersion or distribution patterns show the spatial relationship between members of a population within a habitat. Individuals of a population can be distributed in one of three basic patterns: uniform, random, or clumped.
Explanation:
Describe the weather conditions for a Warm front.
Answer:
Explanation:
Warm fronts bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms.As the front passes over an area, the clouds become lower, and rain is likely. There can be thunderstorms around the warm front if the air is unstable.
What do pesticides, heavy metals, hazardous waste, mining for metals, mining for ores, all have in common?
Answer:
pollution of land and water
Explanation:
Pesticides, heavy metals hazardous waste and mining for metals or ores all cause land pollution.
These contaminate the land kill the useful microbes present in the soil. Moreover, when used excessively these chemical enter in our food chain and through into our body and cause various disease. Minamata disease in japan is one such example cause be mercury contamination.
These cause water pollution too. Chemical waste in water give rise to eutrophication and leaching.
Which of these is the MOST common result of greenhouse gases altering the atmosphere of Earth?
A. an increase in the air temperature
B. a decrease in the air density
C. an increase in the intensity of visible light
D. a decrease in the thickness of the ozone layer
Greenhouse gases are the gases that involves carbon dioxide, methane, nitrous oxide and water vapor. Its main consequence is the increase in the air temperature.
What are greenhouse gases?Greenhouse gases are the gases that traps the heat in the atmosphere and make it warm.
There are following greenhouse gases:
Carbon dioxide.Methane.Nitrous oxide.Water vapor.These gases contribute in the increased temperature of the environment.
Thus, the correct option is A.
https://brainly.com/question/14131369
For more details regarding greenhouse gases, visit:
#SPJ2
A research study looked at variations in snail populations in urban areas compared to natural ecosystems outside of the urban development. Urban areas tend to be be warmer, trapping more solar energy and reflecting less light back out of the atmosphere. The study found that brown snails were more commonly found in the natural ecosystem while yellow banded snails were found in the urban, developed areas. Which statement best describes the distribution in the phenotypes for the snails in this scenario?
A) The variations in the snail populations are random and unrelated to the locations.
B) The variation in the snail population is due to sexual reproduction of the snails in the urban development and asexual reproduction of the snails in the natural ecosystem.
C) The variation in the snail population is due to mutations while the distribution of colors in the population is due to genetic drift. The location of the colors is a random process.
D) The variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter colored snails survive with greater frequency in the warmer urban development.
Answer:
D) The variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter colored snails survive with greater frequency in the warmer urban development.
Explanation:
The distribution in the phenotypes for the snails in this scenario depends on the variations due to mutations as well as the change in temperature in the two areas.
What do you mean by Phenotypes?Phenotypes may be defined as the appearance or manifestation of desired characters. Phenotypes may also be known as traits.
The phenotypes of snail may get changes due to mutation which is caused by the high temperature in an urban area. UV light is considered a physical agent of mutation. Hence, the variation in the snail populations is due to mutations while the distribution of colors in the population is due to the changes in temperature in the two areas. Lighter-colored snails survive with greater frequency in the warmer urban development.
Therefore, The distribution in the phenotypes for the snails in this scenario depends on the variations due to mutations as well as the change in temperature in the two areas.
To learn more about the Ecosystem, refer to the link:
https://brainly.com/question/842527
3. Why are some traits seen more in populations than others?
a. Those traits are more beneficial for survival in a niche
b. Those traits are less beneficial for survival in a niche
c. Gene flow from outside populations
d. Genetic drift from outside populations
Drag the tiles to the correct boxes to complete the pairs. Match the soil conservation technique to its explanation.
Answer:
contour farming => process of growing crops perpendicular to the direction of the land's slope.
grassed waterways =>planting grass in shallow channels.
crop rotation =>practice of growing different crops in succession in a field.
cover cropping and mulching => process of covering the soil surface around a plant with materials such as hay or leaf debris.
WILL GIVE BRAINLISTTT!!! How can life and conditions on Earth be used as a model for life on other worlds?
Answer:
You can see the conditions of the other world, and see the composition of that world. This allows you to see what elements are abundant. Assuming there is water on that other planet, you can use the elements that are found there and see what organisms on earth are composed of those elements or use them.
Specifically, extremophiles (types of archaeabacteria) often exhibit characteristics that seem suitable for other planets. Using this, you can estimate what life on other planets have as characteristics, or even what they are made of.
Organisms with similar molecular makeups + organisms in areas with similar environmental pressures often exhibit anatomical + behavioral similarity. You can use this to model this.
Which of the following is a characteristic of the inner planets?
A
They have visible rings.
B
They have up to two moons.
с
They are made mostly of gas.
D
They are enormous and heavy.
Answer:
i think the correct answer is b
How did adding a word change the possibilities?
Answer:
suffixes
Explanation:
June 22, 2018. A suffix is a letter or group of letters you add to the end of a word. It changes the meaning or function of a word. ... There are many suffixes used in the English language.
You find an organism growing on a dead log and after careful study, you determine that it is multicellular, heterotrophic, and its cells have cell walls. Given this information, you classify this organism into which kingdom
Answer: This is a plant organism due to it having cell walls but to be specific this is classified as being in the fungi Kingdom such as mushrooms.
Fungus grow on decaying or dead organisms to help break them down Hope this helps ^_^
Answer:
It is in the plant kingdom :) :)