One primary factor in shaping the polarity of the body axes in chick embryos is C. gravity.
The early developmental stages for organisms are a complex procedure and each kind of organism has its own kind of developmental phase. In mammals, the size of an egg is particularly small, hence the study becomes more difficult.
Gravity acts as a critical factor for determining the body axis at the time of embryogenesis. The dorsal-ventral axis for chick embryos is fixated due to gravity.
The bilateral symmetry of a chick depends on gravity. Research has shown that intrauterine rotation is only a tiny factor in shaping the bilateral symmetry of a chick embryo. It is the gravity that mostly affects the bilateral symmetry.
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Answer:
Mitosis consists of one stage whereas meiosis consists of two stages. Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes). Mitosis produces two identical daughter cells whereas meiosis produces four genetically different daughter cells
Answer:
Empirical: OH
Molecular:
Explanation:
First of all, we are going to use the formula: mass = no. moles x Molar Mass And rearrange it to find No. moles: No. moles = mass/Molar Mass
Let's start with Hydrogen:
The given mass is 0.44g, and hydrogen's molar mass is 1.01, therefore the number of moles is: 0.44/1.01 = 0.4356
Now we do the same for Oxygen:
Given mass = 6.92, Molar mass of Oxygen = 16.00, No. Moles = 6.92/16.00 = 0.4325
Now we identify the smaller one (Oxygen as 0.4325 < 0.4356) and we divide both values by that number:
0.4325/0.4325 = 1
0.4356/0.4325 = 1.01
We round both to the nearest 0.2 or 0.25 (depending on what you're taught), and we get: 1 and 1.
This means that the empirical formula has one of each: OH
Now to find the molecular formula we find the relative mass of OH and divide the given mass by that:
M(OH) = 16.00+1.01 = 17.01
34.00/17.01 = 2
We now multiply both by this number to get:
Hope this helped!
The Nervous system of the body consists of all the nerve cells. It is the body's "speedy" electrochemical communication system.
every neuron (nerve cell) has a long process known as 'axon' which is used to contact the next cell in the circuit. The receiving cell (another neuron) has small processes called 'dendrites' which are contacted by the axon. Now the neurons, like all other cells in the body, are enclosed by a selectively permeable cell membrane - which means it allows certain chemicals to pass through, while others are prevented from entering or leaving the cell
Answer:
The presence of grit and rust can to some degree alter the markings on bullets fired through the same barrel.
Explanation: