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
Maru [420]
3 years ago
10

What came first the chicken or the egg?

Biology
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

So the egg definitely came first.

Explanation:

Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.

You might be interested in
If a foreign gene is cloned into an expression host, it is important that the host itself A) not produce the protein being studi
Georgia [21]

Answer:

Answer is A. not produce the protein being studied.

Explanation:

The process of generating, creating or replicating a copy of a cell or an organism, which is genetically identical , is called cloning.

There are three types of cloning, these are

1. gene cloning... which is the process of replicating copies of genes.

2. reproductive cloning is the process of generating copies of whole organism.

3. therapeutic cloning... this process is always used when the aim is at creating or generating tissues in replacing diseased or injured tissue by producing embryonic stem cells for experiment.

8 0
3 years ago
In which oceanic zone do clams and crabs survive by burrowing in the sand?
Keith_Richards [23]

Answer:

Mesopelagic zone

Explanation:

The Mesopelagic zone, also referred to as the Twilight zone, is the second oceanic zone from the top, lying just bellow the Epipelagic zone. It is occupying the waters at depths between 200 meters and 1,000 meters. The sunlight is only managing to reach the top few meters of this zone, while the rest is not receiving any sunlight, thus this zone is not supporting the plant species because they need sunlight for the process of photosynthesis. There are lot of animal species that live in this zone though, and they are ll very well adapted for it, often having hard shells or heavily scaled bodies, larger lungs and heart, and very well developed gills. Some of the animals that live in here are the crabs and the clams. They have developed all the needed characteristics to live in this zone. Because they are prey to lot of larger animals, both the crabs and the clams have started to use the soft sediments at the bottom as cover, digging themselves below it, and mostly managing to evade trouble and end up as food for the other species.

8 0
3 years ago
The cell membrane is said to be semipermeable because
Mazyrski [523]

Answer:

The membrane is selectively permeable because substances do not cross it indiscriminately.

Explanation:

7 0
2 years ago
1.An attraction between molecules can be called a _______.
Allushta [10]
A. polar bond
d hydrogen bonding
c capillary action
5 0
3 years ago
What is the best definition for a hypothesis?
Nutka1998 [239]

ANSWER:I think the answer is number 3

3 0
3 years ago
Other questions:
  • During dna replication, each strand serves as a _____________ for the new ________________ strand..
    10·1 answer
  • Which of these fossil fuels comes from fossilized plant matter. A oil/ petroleum B natural gas C coal 2. From what are fossil fu
    5·1 answer
  • As plants grow, stems and branches thicken or increase in girth. This thickening is a result of cells in the vascular cambium. V
    8·2 answers
  • The hepatitis a virus can Best be detained how
    14·1 answer
  • Explain how an unbalanced translocation occurs and how it affects humans.
    13·2 answers
  • BEST ANSWER GETS BRAINLIEST!!!!! PLEASE HELP.
    13·1 answer
  • 1pt What do we call the force produced by the interaction of electricity and magnets?
    9·1 answer
  • If a person has one dominant and one recessive trait for a gene, the allele combination is …
    9·1 answer
  • On which of these issues is public opinion less likely to affect policymaking?
    5·1 answer
  • The diagram below shows the two forces that keep Earth
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!