Answer:
haploid:N, chromosome number
Diploid: 2N, chromosomes in body cells
both: product by meiosis
Explanation:
The two domains are the Archaea (Archaebacteria) and the Bacteria (Eubacteria).
Archaea are the prokaryotic cells, unlike the Bacteria and the Eukarya, the Archaea possess the membranes comprising of branched hydrocarbon chains connected with the glycerol by the ether linkages. The Archaea generally thrives in extreme environments and comprises methanogens, hyperthermophiles, and halophiles.
The Bacteria are also prokaryotic cells, and unlike the Archaea and the Eukarya, the cell walls of Bacteria comprises of peptidoglycan. Bacteria comprise cyanobacteria, mycoplasmas, Gram-negative bacteria, and Gram-positive bacteria.
Answer:
a) Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land.
Explanation:
Amnion is the membrane surrounding the fetus. Animals that posses amnion are termed as Amniotes. Amniotes are tetrapods (i.e descendants of four-limbed and backboned animals) that are characterised by having an egg equipped with an amnion, an adaptation to lay eggs on land rather than in water
Amphibians reproduce sexually with either external or internal fertilization. Amphibians do not produce amniotic eggs, so they must reproduce in water.
Unlike amphibians, in reptiles production of amniotic eggs takes place. The shell, membranes, and other structures of an amniotic egg protect and nourish the embryo. They keep the embryo moist and safe while it grows and develops in mos dry lands.
Gigantism
and acromegaly are the two diseases resulting from hyper function of the
pituitary gland.
Gigantism
and acromegaly are conditions that are nearly always due to a pituitary adenoma
that is because of excessive secretion of a growth hormone called hypersomatotropism.
<span>If GH
hypersecretion begins in childhood, before closure of the epiphyses pituitary
gigantism occurs. It is a rare condition where skeletal growth velocity and
ultimate stature are increased, but little bony deformity occurs. However,
soft-tissue swelling occurs, and the peripheral nerves are enlarged. Hypogonadotropic
hypogonadism and deferred puberty is also normally present, resulting in a
eunuchoid habitus. While Acromegaly
occurs after the growth plate cartilage fuses in adulthood, it is the same
disorder of IGF-I excess but in acromegaly, an unadorned disease that morbidity
and mortality rates are high because its often diagnosed late, where the
disease is associated with cardiovascular, cerebrovascular, and respiratory
disorders and malignancies. </span>
Answer:
Adaptaciones con el fin es evitar la pérdida de agua
Explanation:
La rosa evitan la sequía mediante la presencia de espinas que le permiten enfrentar muchas horas de sol al día. Además, estas espinas permiten reducir la superficie expuesta al sol, desarrollando un ambiente más fresco en el centro de la planta, donde se encuentran las yemas. Los cactus tienen una capa de cera sobre el tallo y sus hojas están modificadas con el objetivo de reducir al máximo la pérdida del agua. Estas hojas son modificadas por tallos que permiten almacenar agua y disminuir la superficie por unidad de volumen (evitando así la transpiración), y realizar la fotosíntesis. Finalmente, los cardos poseen un tallo grueso que le permite almacenar agua para afrontar periodos de sequía. Estos tallos pueden aumentar hasta tres veces su volumen luego de una lluvia abundante.