Ans.
Embryogenesis or embryonic development is defined as a process that involves formation and development of a zygote into embryo. The fertilized egg or zygote undergoes mitotic divisions through cleavage and divides rapidly.
The first stage of embryonic development is known as morula that represents a 16 cells consisting solid ball-like structure. The morula later develops into blastula.
Thus, the correct answer is option C). 'morula.'
Answer:
more people will die
Explanation:
If you have a big population and little food mor peple will die.
a. neutron. c. proton.
b. ion. d. electron.
2. Two or more different atoms are combined in
definite proportions in any
a. symbol. c. element.
b. isotope. d. compound.
3. A covalent bond is formed by the
a. transfer of electrons. c. gaining of electrons.
b. sharing of electrons. d. losing of electrons.
4. When you shake sugar and sand together in a test
tube, you cause them to form a
a. compound. c. solution.
b. mixture. d. suspension.
5. A compound that produces hydrogen ions in
solution is a(an)
a. salt. c. base.
b. acid. d. polymer.
6. In polymerization, complex molecules are formed
by the joining together of
a. macromolecules. c. polymers.
b. carbohydrates. d. monomers.
8. Proteins are polymers formed from
a. lipids.
b. carbohydrates.
c. amino acids.
d. nucleic acids.
9. An enzyme speeds up a reaction by
a. lowering the activation energy.
b. raising the activation energy.
c. releasing energy.
d. absorbing energy.
10. In a chemical reaction, a reactant binds to an
enzyme at a region known as the
a. catalyst.
b. product.
c. substrate.
d. active site.
Answer:
I wont be able to answer all of them but: 1. C
2. Compound
Explanation:
A positive charge is called a proton, no charge is a neutron and a negative charge is a electron
When atoms are combined they are called a compound.
Hopes this helps you a bit.
please answer fast
Answer:
Explanation:
The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot
b. Pons
c. Medulla oblongata
d. A and b
e. B and c
The medulla oblongata and the pons are involved in the regulation of the ventilatory pattern of respiration. So the answer is E.
b. unity and diversity
c. regulation
d. levels of organization
Answer:
d
Explanation:
The situation described in the question is an illustration of the 'levels of organization' theme in biology, which elucidates how smaller units combine to create more complex structures like tissues, organs, organ systems, and ultimately, the whole organism.
The scenario presented in the question exemplifies the theme of 'levels of organization' in biology. This theme explains how simpler components combine and interact to form more complex structures. In the context of multicellular organisms, cells form the fundamental units, which combine to constitute tissues. Tissues further come together to form organs, and organs function together in organ systems to enable the entire organism to function properly.
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Answer:
C. a haploid cell produced by meiosis