1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ad libitum [116K]
3 years ago
9

Which of the following correctly describes the general trend in the evolution of hominid teeth?

Biology
2 answers:
LUCKY_DIMON [66]3 years ago
5 0
The answer i believe is C: Tooth size has decreased as hominids evolved toward the use of tools.
Marianna [84]3 years ago
4 0

Answer:

The correct answer will be option C.

Explanation:

By studying the fossils it has been suggested that human teeth like other bones also evolved with time. These teeth evolved in humans as the food diet of the ancestors changed from eating plants to hunting and eating the meat of other animals.

Human teeth size has generally decreased in size during evolution which is easily observed in the molar teeth or wisdom teeth.  In modern human or <em>Homo sapiens,</em> the wisdom teeth are usually smaller as compared to ancient hominins like<em> Paranthropus boisei </em>or “Nutcracker” that lived 2.3 million years ago with the largest molars. This change developed due to use of the advanced tool by the genus Homo as with the use of tools humans did not have to spend much energy on developing teeth.

Thus, option C is the correct answer.

You might be interested in
Draw the structure of DNA aand write a short note about it.​
artcher [175]

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

i really hope this helps

please mark me as brainliest

4 0
2 years ago
Bears typically eat a mixture of plants and animal food sources. When a bear is unable to find meat, it will have a much lower f
inysia [295]

FIXED

The answer is

1) Essential Fatty Acids

2) Cell Membrane

7 0
3 years ago
Read 2 more answers
1. Compare the average global temperatures from the early 1900’s and the early 2000’s. How has the
sveticcg [70]

1. The average global temperatures from the 2000’s early are higher than those from the early 1900’s. We can see from the diagram that the average global temperature in the 1900s was about 57 degrees Fahrenheit (13.8 o C). In the 2000s the temperature raised to more than 58 F (about 14.5 o C). The world temperature is increasing due to human activity or natural variability. Some of the causes of this global warming are:  burning of fossil fuels, agriculture , deforestation all leading to greenhouse effect.

2. Carbon dioxide (CO2) is naturally present in the atmosphere as part of the carbon cycle, but its amount is raised due to human activities. This gas is produced by the process of burning fossil fuels (coal, natural gas, and oil), solid waste, trees and wood products..CO2 is removed from the air by the absorption of the plants or it dissolves into the ocean over a period of 20–200 years.

Methane is produced during the production and transport of coal, natural gas, and oil. It is removed from the atmosphere by chemical reaction, persisting for about 12 years.

Nitrous Oxide (N2O) is formed during agricultural and industrial activities or during the burning of fossil fuels and solid waste.N2O is destroyed in the stratosphere persisting for around 114 years.

Fluorinated gases such as hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride are formed in different industrial processes. Those gases have long atmospheric lifetimes sometimes thousands of years.

3. Greenhouse gases such as CO2, N2O, fluorinated gases, methane are gases that trap the heat in the atmosphere, causing the warmer climate. The amount of a particular greenhouse gas in the atmosphere can be measured. Higher emissions of those gases lead to higher concentrations in the atmosphere. Because of the Industrial Revolution , atmospheric greenhouse gas amount is raised for the last century and that increased the global average temperature.

4. There are many ways for reducing the amount of CO2. Some of them are:

• Reduce Vehicle Emissions, since the use of vehicle for transport is one of the largest sources of this greenhouse gas. Drive a bike, get a gas-efficient vehicle or a hybrid car.

• Reduce Home Energy Carbon Emissions by insulating and sealing your home, turning off lights, add solar panels to the roof of your home etc.

5. Solar energy that travels to the Earth is absorbed by the its surface and converted into heat, which is released into the atmosphere. The greenhouse gases such as carbon dioxide (CO2) absorb that heat and send it back to the Earth's surface. This process is known as the greenhouse effect and it leads to temperature increase. This happens because the increase in greenhouse gases in the atmosphere trap too much heat.  

6. Since the greenhouse gases trap the heat, if there were less of those gases, much of the infrared radiation (solar  energy) that is converted to heat today would not be trapped in the Earth's atmosphere. The  temperature of the Earth would cool down, and a conditions of the Ice Age would occur. These conditions would be very unfavorable for plants and animals, oceans would freeze, and weather patterns would change.

3 0
2 years ago
What is the main effect of epinephrine and norepinephrine?
ANTONII [103]

The correct answer is option C

Epinephrine  leads to  constriction in blood vessels and causes dilation of  blood vessels in the skeletal muscles and the liver. Also being a stress hormone it increases blood pressure, heart rate, and glucose from energy stores and produces constriction in the smooth muscles.

6 0
3 years ago
The myenteric plexus is associated with this tunic of the alimentary canal.
Georgia [21]
The answer is b and maybe c or a or b butt it’s. also vb
4 0
2 years ago
Other questions:
  • A molecule of one atom of carbon and two atoms of oxygen would be written _____. CO2 CO2 Co2 2CO
    14·2 answers
  • Bacitracin blocks the transport of NAG and NAM across the cytoplasmic membrane to the cell wall. Like other antimicrobials that
    9·1 answer
  • Question 1 of 10
    14·1 answer
  • If a cell that has six chromosomes goes through meiosis, how many chromosomes will the daughter cells have? 1
    9·1 answer
  • What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions?
    7·2 answers
  • Please help question is in the picture and its due shortly its on cladograms:)​
    13·2 answers
  • You are a botanist hired in the future to make a distant planet, Xyloph, habitable for human life. Your job is to help seed the
    11·1 answer
  • g The citric acid cycle is a central metabolic pathway in mammalian organisms. Sources of acetyl-CoA for the pathway include: Th
    12·1 answer
  • What is soil salinization
    13·2 answers
  • PLEASE ANSWER 60 POINTS
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!