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
lilavasa [31]
2 years ago
9

Over the past 800,000 years, what is true about the pattern of climate during glacial-interglacial cycles?

Biology
2 answers:
Dmitrij [34]2 years ago
7 0

Answer:

Explanation:

The history of humanity from the initial appearance of genus Homo over 2,000,000 years ago to the advent and expansion of the modern human bieings that we are today evoled   from many  years ago some say from the begining of time— it is connected to climate variation and change. Human biens  has experienced nearly two full glacial-interglacial cycles, but its global geographical expansion, massive population increase, cultural diversification, and worldwide ecological domination began only during the last glacial period and accelerated during the last glacial-interglacial transition. The first bipedal apes appeared in a time of climatic transition and variation, and Homo erectus, an extinct species possibly ancestral to modern humans, originated during the colder Pleistocene Epoch and survived both the transition period and multiple glacial-interglacial cycles. Thus, it can be said that climate variation has been the midwife of humanity and its various cultures and civilizations.

Ugo [173]2 years ago
5 0

Answer: involve rapid, nonlinear, reactions of ice volume, CO2, and temperature to external astronomical forcing. The precise timing of events may be modulated by millennial‐scale climate change that can lead to a contrasting timing of maximum interglacial intensity in each hemisphere. A variety of temporal trends is observed, such that maxima in the main records are observed either early or late in different interglacials. The end of an interglacial (glacial inception) is a slower process involving a global sequence of changes. Interglacials have been typically 10–30 ka long. The combination of minimal reduction in northern summer insolation over the next few orbital cycles, owing to low eccentricity, and high atmospheric greenhouse gas concentrations implies that the next glacial inception is many tens of millennia in the future.

1 Introduction—Interglacials of the Last 800 ka

Earth's climate of the last 800 ka (1 ka = 1000 years) is the latest stage in a slow cooling that has been in progress for the last ~50 Ma (1 Ma = 1 million years) [Zachos et al., 2008]. During this cooling, ice sheets formed on the Antarctic continent ~40 Ma ago, while the first signs of Northern Hemisphere (NH) glaciation appeared much more recently. Only at the start of the Quaternary Period and the Pleistocene Epoch, ~2.6 Ma ago, did alternations between cold glacial periods with ice on the NH continents, and warmer intervals with little or no NH continental ice, first appear, reflected in the appearance of ice‐rafted debris

Explanation:

You might be interested in
Which of the following statements best supports the claim that organisms share fundamental processes as a result of evolution? (
podryga [215]

Answer:

C

Explanation:

All living organisms' cell are composed of genetic material in form of DNA. The DNA encodes the information needed for the production of useful products (proteins). The way in which the information is encoded is called the GENETIC CODE. It consists of all the triplet nucleotides in DNA or RNA that encodes an amino acid.

This genetic code is universal i.e. the same genetic code is employed by virtually all living organisms, as a codon does not encode another amino acid in another organism. It is universal that AUG specifies Methionine in all living organisms. This shows that all organism share a common evolutionary history.

Hence, it is possible for an organism to express a gene from another organism since the same genetic code will be used to read the information in the gene.

4 0
3 years ago
How might a change in pH levels affect enzyme reaction rate and shape in the cell
babunello [35]
Enzymes are highly specific proteins that function best at certain pHs. A change in pH would affect its structure; too high or too low would cause denaturation. When this happens, the enzyme won’t have the correct structure to function as a catalyst. Therefore, reaction rate will slow.

Hope this helps!!
5 0
3 years ago
What steps should be taken to figure out a yard soil problem using the scentific method?
xenn [34]

Answer: Soil Sampling.

Explanation:

3 0
2 years ago
I need help
Cerrena [4.2K]
Let me help you here :)

Start by presenting yourself, your name, where you from, etc. Then you can explain why is it important to complete all your assignments and study to get good grades... You can also talk about how High School will reflect in your future and applications for colleges. In your story write how important is to always pay attention in class and listen to your teacher.
Hope this helps!!
6 0
2 years ago
What does a Euglena require to exhibit phototactic behavior?
pentagon [3]

Answer:

C

Explanation:

Phototaxis (phototactic response) is the cellular behavior in which cells swim toward or away from the light source. The euglena have eyespots that detect light so that it can move toward sunlight for photosynthesis.

3 0
2 years ago
Other questions:
  • All living things must grow and develop which of the following choices is an example of this
    13·1 answer
  • Where does rna polymerase begin transcribing a gene into mrna? see concept 17.2 ( page 342)?
    8·1 answer
  • What does an anthropologist mean?
    15·2 answers
  • Question 11
    8·2 answers
  • Which of the following is a suffix<br> 1:re<br> 2:sing<br> 3:tion<br> 4:gp
    13·1 answer
  • which body system of a pregnant woman shows the most dramatic physiological changes during pregnancy?
    13·1 answer
  • Help with science please!!
    6·2 answers
  • A man heterozygous for blood type A marries a woman heterozygous for blood type B. What could be the possible blood types of the
    15·2 answers
  • HELP!!!!!!
    11·1 answer
  • In dna, which base pair goes with adenine
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!