Answer:
option b is correct
Explanation:
if adenine is 20% so thymine is also 20% because equal amount thymine and adenine make a base pair the remaining percentage is 60% which is contributed by cytosine and guanine so cytosine contribute 30% and cytosine also contribute 30%
The parts of the amniotic reptile egg include the amniotic fluid, the albumen, and the shell.
<h3>Parts of an amniotic reptile's egg</h3>
The various parts of amniotic reptile's eggs include:
- The external shell which serves as a protective layer
- The yolk which supplies energy to the embryo
- The albumen supplies the embryo with water and proteins
- The extra-embryonic membranes - the chorion, the allantois, and the amnion.
The chorion serves as a channel for gaseous exchange between the embryo and the environment.
The allantois partially functions as waste manager and in respiration. It stores nitrogenous wastes and gets rid of them as well as participates in gaseous exchange along with the chorion.
The amnion protects the embryo against mechanical shocks. It also protects the developing embryo from being dehydrated.
In other words, the 3 extra-embryonic membranes protect, facilitate gaseous exchange, and ensure that wastes are properly disposed of.
More on amniotic eggs can be found here: brainly.com/question/14791069
#SPJ1
There was no net change in the given population. The size of the given population remains unchanged.
The explanation behind this is that if we consider the given values-
Emigration- 3
Immigration- 17
Natality- 12
Mortality-26
Therefore,
The overall effect on the population will be=
(Emigration+ Mortality) - (Immigration + Natality)
= (3+26) - (17 + 12)
=29-29
=0
Here the emigration means the number of people who have migrated from the population. Mortality refers to the number of deaths in a given population. Immigration is the migration of people into the population and natality is the overall number of births that have taken place in a population. Therefore there is no net gain or loss in the given population. This exerts no effect on the population keeping it unchanged.
Learn more about population here-
brainly.com/question/27991860
#SPJ4
Answer:
The correct option is : a. Oldowan
Explanation:
The Oldowan or Mode I tools are the simply earliest or the oldest recognizable tools, preserved in the archaeological records.
The oldest Oldowan tool is dated about 2.6 million years ago and was found in Gona, Ethiopia. These tools were used in the Lower Paleolithic period, about 2.6 million years ago until 1.7 million years ago. These tools were used in Africa, Middle East, South Asia and Europe, by the early humans.
Restrict the freedom of assembly
Hope this helps :)
