1. Placental mammals are those mammals who pregnancy forms in the womb of the mother and forming a placenta between the embryo and the lining of the uterus. This is unlike other categories called marsupials and monotremes that raise their offspring on a pouch and lay eggs respectively.
2. The human's female reproductive duct is composed of the ovaries that release eggs regularly and fallopian tubes that connect the ovaries and the uterus. These eggs travel through the fallopian tube and get to the uterus. The uterus then descended and narrows down into the vagina.
3. The male reproductive system is composed of the testes that produce sperm (they are formed in the epididymis). The sperm travels through the epididymis and through the duct of the penis. The male reproductive system is mostly found ‘outside’ of the body, unlike the female’s.
4. The zygote is formed when a sperm and an egg meet and fuse. This process is called fertilization. The sperm and egg are haploid and fuse to form a diploid zygote. The zygote begins to divide to develops into an embryo.
<span>diversified
Through random genetic mutations of a species over time, beings with unique characteristics emerged. Based on the suitability of the adaptation to the environment, the beings would either be able to successfully reproduce, or not, and perish. Successful adaptations would be passed down to children, resulting in the adaptations persisting at least in the short term. Charles Darwin is an excellent author to study to learn more about the theory of evolution.</span>
According to the description of inheritance and alleles that you've provided, the chance of inheriting long horns as a trait is 1/4.
Answer:
d. The normal bonding between the R groups has been disturbed and the protein loses its normal shape.
Explanation:
Denaturation is the loss of function of a protein due to its altered three-dimensional structure. To function properly, proteins must be present in a properly folded form. The three-dimensional structure and protein folding are mediated by weak interactions such as hydrogen bonds, electrostatic interactions, etc. An abrupt increase in temperature, pH or presence of some organic solvents causes protein denaturation.
The organic solvents target the hydrophobic interactions between the R groups of amino acids that make the core of globular protein stable. Extreme levels of pH target the net charge on proteins and thereby results in electrostatic repulsion between closely placed amino acids. Extremes of pH also disrupt the hydrogen bonding between the R groups of the amino acids. The effect is the loss of the three-dimensional structure of proteins, their partial or complete unfolding and loss of function.
Answer:
Photons
Explanation:
Photons are the only source of energy for photosynthesis. Photons are absorbed by chlorophyll molecules within Photosystems I and II (and antennae complexes), generating higher-energy ‘excited’ states of the photosystems which can carry out energetically costly chemical reactions.
