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
BlackZzzverrR [31]
3 years ago
8

How do scientists determine when an era ends and an era begins

Biology
1 answer:
rodikova [14]3 years ago
4 0
 Geologic Time Scale.Scientists decide when an era begins<span> and </span>ends<span>, due </span>to<span> mass extinction. ...</span>Scientists determine<span> when drastic changes </span>are<span> made by the fossil record, which shows earths past organisms that have become extinct.</span>
You might be interested in
Microbiology symbiosis
Helen [10]

do u mean microbial symbiosis?

Answer:

Symbiosis is a relationship between two organisms

Types of Interactions

Positive interaction: Mutualism, Syntrophism, Proto-cooperation, Commensalism

Negative interaction: Ammensalism (antagonism), parasitism, predation

6 0
3 years ago
What do scientists often use to study microevolution?
Allisa [31]
They are known as evolutionary biologists. Strictly speaking, anthropology is split up into a number of disciplines - physical (sometimes known as biological) anthropology is the study of evolution as it relates to human beings. Further to this, scientists who study evolution in the fossil record are known as evolutionary palaeobiologists or simply palaeobiologists.
6 0
3 years ago
Read 2 more answers
3. While walking in the forest floor, you found an organism that has the following characteristics: had the consistency and appe
Leviafan [203]

Answer:

What are stinkhorns?  Stinkhorns are mushrooms that are found from the tropics to more temperate regions such as Wisconsin.  They can suddenly appear in mulch, lawns, and areas with bare soil.  These visually-shocking fungi get their common name from their characteristic, unpleasant odor.  Although they are often unwanted additions to home gardens, stinkhorns do not cause plant disease.  Because stinkhorns can grow on dead organic material, they actually are beneficial in that they contribute to the recycling of plant debris into nutrients that improve soil fertility and can be used by garden plants.

What do stinkhorns look like?  Stinkhorns grow into various shapes, but they are bestknown for looking like horns or penises.  A few species grow several appendages, resulting in an octopus-like appearance.  Some species have a veil attached below the cap that resembles a lacey skirt flowing from the mushroom’s hollow stalk.  Stinkhorns can range in color from white, beige, and olive to bright orange or red with black accents.  The tips of mature stinkhorns are usually coated in a spore-containing slime.  Gardeners often discover immature stinkhorns as they dig in the soil.  The immature forms appear as whitish to pink or purple, egg-shaped masses.  Stinkhorns develop rapidly sometimes growing up to four to six inches per hour, and can generate enough force to break through asphalt.

Where do stinkhorns come from?  Stinkhorns are often first introduced into a garden in organic materials (e.g., soils and mulches) that contain microscopic hyphae (i.e., fungal threads) of stinkhorn fungi.  Once stinkhorns mature, they produce a pungent, off-putting odor that is reminiscent of rotting flesh or dung.  This smell may disgust people, but it attracts insects, particularly flies.  Flies and other insects eat the slimy material at the tips of stinkhorns and carry spores in this slime to new locations as they move around in the environment.  In many ways, this process is comparable to the distribution of pollen by bees (but of course without the more appealing scents associated with most flowers).

3 0
3 years ago
How are cells with monosomy different from haploid cells
gladu [14]
Haploid refers to a cell that has has only one copy of each chromosome, like in a gamete such as a sperm cell or egg cell. Upon fertilization, the two haploids come together to form a full diploid cell (two copies of each chromosome) which then goes on to form the complete organism. Monosomy refers to a condition where there is only one copy of a specific chromosome. For example, in the human condition Turner Syndrome, there is only one X chromosome, instead of two sex chromosomes. Most incidences of monosomy other than Turner Syndrome are lethal, so there aren't many examples of it.
4 0
3 years ago
Please help I’ll mark brainliest
nata0808 [166]
I think that it’s A, D, and F

-the particles do not have a charge
-movement across membrane doesn’t require additional energy
-the particles crossing could be oxygen or water
8 0
3 years ago
Read 2 more answers
Other questions:
  • What would happen to the planet if the hrdrologic cycle stopped functioning
    15·2 answers
  • Match each word with the correct definition
    11·1 answer
  • HELP PLEASE I DON'T UNDERSTAND!!!!!!!!!!!!!!!!!!!!!!
    12·1 answer
  • I will give brainlist only if its correct
    13·2 answers
  • PLEASE HELP!! I WILL GIVE BRAINLIEST BUT I DONT HAVE MUCH POINTS! What are the characteristics (wind? precipitation, vegetation)
    8·1 answer
  • Poinsettias flower in December and January. Which term best describes this kind of plant?
    7·1 answer
  • What is the mRNA ? how do you read this ?
    10·1 answer
  • The rate limiting reaction of aerobic respiration involves the phosphorylation of __________ by the enzyme _______ . The rate at
    15·1 answer
  • The level of carbon dioxide in the blood is monitored by nerve tissue. If you exercise strenuously, the increase in cellular res
    5·1 answer
  • If a substance from a Kastle-Meyer test turns pink, the substance is definitely blood.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!