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
frutty [35]
3 years ago
7

Many scientists agree that the universe is about _____ years old.

Biology
2 answers:
Zielflug [23.3K]3 years ago
4 0

Answer:

The correct answer is option C, 13 billion

Explanation:

Most of the scientists believe that the age of universe is approximately 13.77 billion years. The estimates age is based on the distances and radial velocities of other galaxies which are moving away from each other at a speed directly proportional to their distance. Basically the logic is to measure the time must that has elapsed between the Big Bang incidence and the present.

Rashid [163]3 years ago
3 0
Many scientists agree that the universe is about 13 billion years old.
You might be interested in
Give an example and description of the word Cycadophyta.
suter [353]
A cycadophyta is a biological dividsion, and within this,nthree are three families, and these are; Cycaclaceae, Strangeriaceae and Zamiceae. The plants of these are seed plants, which generally have characteristics, such as a stout, short and tough trunk made of wood, with a crown like span of evergreen leaves, with a cone shape protruding from the centre of the tree. Sorry, I wasnt able to attach an image, but if you google cycadophyta, this is what they look like. Sorry for the inconvenience, hope this helps
6 0
3 years ago
Two species of a plant genus Ipomea share a common niche and reproductive pattern but are still unable to hybridize because they
Elanso [62]
The answer is : mechanical
4 0
2 years ago
Read 2 more answers
What are the effects of Speciation & Extinction on biodiversity​
Sunny_sXe [5.5K]

Answer:

Specitation increases biodiversity, while extinctions decrease biodiversity.

Explanation:

Biodiversity is the variety of life on Earth or some specified geographic area of the planet; the diversity of life occurs at the genetic level, at the species level, at the ecosystem level, and in evolutionary lineages.

6 0
3 years ago
Read 2 more answers
List the two types of viral reproduction and describe their differences. Make sure to note which one is immediately harmful to t
nadezda [96]

Answer:

The viruses replicate by lytic and lysogenic cycles

Explanation:

In the lytic cycle, viral proteins attach to the cell membrane in the host in order to release its genetic material to take advantage of the cellular host machinery and synthesize proteins to continue with the infection.  This is immediately harmful to the host.

In the lysogenic cycle, the genetic material of bacteriophage integrate into the host genome or form a circular replicon.

8 0
3 years ago
How do animals get nutrients?
iris [78.8K]

Answer: by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates

Explanation:im a expert in animals

7 0
3 years ago
Other questions:
  • Which of the following means "wing without tooth"?
    9·2 answers
  • How is a sodium ion symbol written <br><br> A. So+<br> B. So-<br> C. Na+<br> D. Na-
    6·2 answers
  • If you were a doctor, and a lab technician told you that the results of a patient’s lab test were Gram positive, what antibiotic
    9·1 answer
  • Dalton proposed the first atomic model. He's thinking that __________.
    14·2 answers
  • Please help <br> Dominant or recessive<br> And what is Ann’s genotype?
    8·1 answer
  • NEED HELP ASAP WILL GIVE YOU BRAINLIEST ANSWER AND 50 POINTS!!!!!!
    10·2 answers
  • If a pea plant's alleles for height are tt, what is true of its parents?
    7·2 answers
  • Spider plants can reproduce both sexually and asexual......
    13·2 answers
  • A poly A tail is added to the mature mRNA after transcription <br> True or false
    5·1 answer
  • What is the correct order of classification from largest (most organisms) to smallest (least organisms - most specific)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!